CINXE.COM

<!DOCTYPE html> <html lang="en" class="no-js"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="applicable-device" content="pc,mobile"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>A short history of Japanese historical seismology: past and the present | Geoscience Letters | Full Text</title> <meta name="citation_abstract" content="Since seismicity in Japan is fairly high, Japanese interest in historical seismicity can be traced back to the nineth century, only a few centuries after the formation of the ancient ruling state. A 1000 years later, 2 years earlier than the modern seismological society was founded, the research on historical seismology started in Japan in 1878. By the accumulation for the recent 140 years, the present Japanese seismologists can read many historical materials without reading cursive scripts. We have a convenient access to the historical information related to earthquakes, in the modern characters of 27,759 pages. We now have 214 epicenters of historical earthquakes from 599 ad to 1872. Among them, 134 events in the early modern period were assigned hypocentral depths and proper magnitudes. The intensity data of 8700 places by those events were estimated. These precise intensity data enabled us to compare the detailed source areas of pairs of repeated historical earthquakes, such as the 1703 Genroku earthquake with the 1923 Kanto earthquake, and the 1707 Hoei earthquake with the summation of the 1854 Ansei Tokai and Ansei Nankai earthquakes. It is revealed that the focal area of the former larger event cannot completely include those of the latter smaller earthquakes, although those were believed to be typical sets of characteristic interplate earthquakes at the Sagami trough and at the Nankai trough. Research on historical earthquakes is very important to assess the seismic hazard in the future. We still have one-fifth events of the early modern period to be analyzed in detail. The compilation of places experienced high intensities in the modern events is also necessary. For the ancient and medieval periods, many equivocal events are still left. The further advance of the interdisciplinary research on historical seismology is necessary."/> <meta name="journal_id" content="40562"/> <meta name="dc.title" content="A short history of Japanese historical seismology: past and the present"/> <meta name="dc.source" content="Geoscience Letters 2017 4:1"/> <meta name="dc.format" content="text/html"/> <meta name="dc.publisher" content="SpringerOpen"/> <meta name="dc.date" content="2017-01-28"/> <meta name="dc.type" content="ReviewPaper"/> <meta name="dc.language" content="En"/> <meta name="dc.copyright" content="2017 The Author(s)"/> <meta name="dc.rights" content="2017 The Author(s)"/> <meta name="dc.rightsAgent" content="reprints@biomedcentral.com"/> <meta name="dc.description" content="Since seismicity in Japan is fairly high, Japanese interest in historical seismicity can be traced back to the nineth century, only a few centuries after the formation of the ancient ruling state. A 1000&nbsp;years later, 2&nbsp;years earlier than the modern seismological society was founded, the research on historical seismology started in Japan in 1878. By the accumulation for the recent 140&nbsp;years, the present Japanese seismologists can read many historical materials without reading cursive scripts. We have a convenient access to the historical information related to earthquakes, in the modern characters of 27,759 pages. We now have 214 epicenters of historical earthquakes from 599 ad to 1872. Among them, 134 events in the early modern period were assigned hypocentral depths and proper magnitudes. The intensity data of 8700 places by those events were estimated. These precise intensity data enabled us to compare the detailed source areas of pairs of repeated historical earthquakes, such as the 1703 Genroku earthquake with the 1923 Kanto earthquake, and the 1707 Hoei earthquake with the summation of the 1854 Ansei Tokai and Ansei Nankai earthquakes. It is revealed that the focal area of the former larger event cannot completely include those of the latter smaller earthquakes, although those were believed to be typical sets of characteristic interplate earthquakes at the Sagami trough and at the Nankai trough. Research on historical earthquakes is very important to assess the seismic hazard in the future. We still have one-fifth events of the early modern period to be analyzed in detail. The compilation of places experienced high intensities in the modern events is also necessary. For the ancient and medieval periods, many equivocal events are still left. The further advance of the interdisciplinary research on historical seismology is necessary."/> <meta name="prism.issn" content="2196-4092"/> <meta name="prism.publicationName" content="Geoscience Letters"/> <meta name="prism.publicationDate" content="2017-01-28"/> <meta name="prism.volume" content="4"/> <meta name="prism.number" content="1"/> <meta name="prism.section" content="ReviewPaper"/> <meta name="prism.startingPage" content="1"/> <meta name="prism.endingPage" content="15"/> <meta name="prism.copyright" content="2017 The Author(s)"/> <meta name="prism.rightsAgent" content="reprints@biomedcentral.com"/> <meta name="prism.url" content="https://geoscienceletters.springeropen.com/articles/10.1186/s40562-017-0069-4"/> <meta name="prism.doi" content="doi:10.1186/s40562-017-0069-4"/> <meta name="citation_pdf_url" content="https://geoscienceletters.springeropen.com/counter/pdf/10.1186/s40562-017-0069-4"/> <meta name="citation_fulltext_html_url" content="https://geoscienceletters.springeropen.com/articles/10.1186/s40562-017-0069-4"/> <meta name="citation_journal_title" content="Geoscience Letters"/> <meta name="citation_journal_abbrev" content="Geosci. Lett."/> <meta name="citation_publisher" content="SpringerOpen"/> <meta name="citation_issn" content="2196-4092"/> <meta name="citation_title" content="A short history of Japanese historical seismology: past and the present"/> <meta name="citation_volume" content="4"/> <meta name="citation_issue" content="1"/> <meta name="citation_publication_date" content="2017/12"/> <meta name="citation_online_date" content="2017/01/28"/> <meta name="citation_firstpage" content="1"/> <meta name="citation_lastpage" content="15"/> <meta name="citation_article_type" content="Review"/> <meta name="citation_fulltext_world_readable" content=""/> <meta name="citation_language" content="en"/> <meta name="dc.identifier" content="doi:10.1186/s40562-017-0069-4"/> <meta name="DOI" content="10.1186/s40562-017-0069-4"/> <meta name="size" content="116948"/> <meta name="citation_doi" content="10.1186/s40562-017-0069-4"/> <meta name="citation_springer_api_url" content="http://api.springer.com/xmldata/jats?q=doi:10.1186/s40562-017-0069-4&api_key="/> <meta name="description" content="Since seismicity in Japan is fairly high, Japanese interest in historical seismicity can be traced back to the nineth century, only a few centuries after the formation of the ancient ruling state. A 1000&nbsp;years later, 2&nbsp;years earlier than the modern seismological society was founded, the research on historical seismology started in Japan in 1878. By the accumulation for the recent 140&nbsp;years, the present Japanese seismologists can read many historical materials without reading cursive scripts. We have a convenient access to the historical information related to earthquakes, in the modern characters of 27,759 pages. We now have 214 epicenters of historical earthquakes from 599 ad to 1872. Among them, 134 events in the early modern period were assigned hypocentral depths and proper magnitudes. The intensity data of 8700 places by those events were estimated. These precise intensity data enabled us to compare the detailed source areas of pairs of repeated historical earthquakes, such as the 1703 Genroku earthquake with the 1923 Kanto earthquake, and the 1707 Hoei earthquake with the summation of the 1854 Ansei Tokai and Ansei Nankai earthquakes. It is revealed that the focal area of the former larger event cannot completely include those of the latter smaller earthquakes, although those were believed to be typical sets of characteristic interplate earthquakes at the Sagami trough and at the Nankai trough. Research on historical earthquakes is very important to assess the seismic hazard in the future. We still have one-fifth events of the early modern period to be analyzed in detail. The compilation of places experienced high intensities in the modern events is also necessary. For the ancient and medieval periods, many equivocal events are still left. The further advance of the interdisciplinary research on historical seismology is necessary."/> <meta name="dc.creator" content="Matsu’ura, Ritsuko S."/> <meta name="dc.subject" content="Earth Sciences, general"/> <meta name="dc.subject" content="Atmospheric Sciences"/> <meta name="dc.subject" content="Geophysics/Geodesy"/> <meta name="dc.subject" content="Oceanography"/> <meta name="dc.subject" content="Planetology"/> <meta name="dc.subject" content="Biogeosciences"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1981; citation_id=CR1; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1982; citation_id=CR2; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1982; citation_id=CR3; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1983; citation_id=CR4; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1983; citation_id=CR5; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1984; citation_id=CR6; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1984; citation_id=CR7; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1985; citation_id=CR8; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1985; citation_id=CR9; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1986; citation_id=CR10; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1986; citation_id=CR11; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1987; citation_id=CR12; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1987; citation_id=CR13; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1988; citation_id=CR14; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1989; citation_id=CR15; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1989; citation_id=CR16; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1993; citation_id=CR17; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=New collection of historical materials on earthquakes in Japan; citation_publication_date=1228; citation_id=CR18; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=Paleo earthquakes; citation_publication_date=1982; citation_id=CR19; citation_publisher=Univ. Tokyo Press"/> <meta name="citation_reference" content="citation_title=Sequel of paleo earthquakes; citation_publication_date=1989; citation_id=CR20; citation_publisher=Univ. Tokyo Press"/> <meta name="citation_reference" content="citation_title=Quest of paleo earthquakes; citation_publication_date=1995; citation_id=CR21; citation_publisher=Univ. Tokyo Press"/> <meta name="citation_reference" content="citation_journal_title=Trans Asiatic Soc Jpn; citation_title=Destructive earthquakes in Japan; citation_author=I Hattori; citation_volume=6; citation_publication_date=1878; citation_pages=249-275; citation_id=CR22"/> <meta name="citation_reference" content="citation_journal_title=Proc Seismol Soc Jpn; citation_title=Reappraisal of the major earthquake that is expected in the Tokai region—a large earthquake in Suruga Bay; citation_author=K Ishibashi; citation_volume=2; citation_publication_date=1976; citation_pages=30-34; citation_id=CR23"/> <meta name="citation_reference" content="Ishibashi K (2009) Full-text databasing of historical earthquake documents, Zisin, 61, S509-517 (in Japanese). Database URL is http://sakuya.ed.shizuoka.ac.jp/erice/ . Accessed 18 Aug 2016"/> <meta name="citation_reference" content="citation_title=Seismic observation guidelines (references); citation_publication_date=1969; citation_id=CR25; citation_publisher=JMA"/> <meta name="citation_reference" content="JMA (2016) Tables explaining the JMA Seismic Intensity Scale. http://www.jma.go.jp/jma/en/Activities/inttable.html . Accessed 27 Dec 2016"/> <meta name="citation_reference" content="citation_journal_title=Bull Earthq Res Inst; citation_title=Measures of earthquake danger and expectancy of maximum intensity throughout Japan as inferred from the seismic activity in historical times; citation_author=H Kawasumi; citation_volume=29; citation_publication_date=1951; citation_pages=469-482; citation_id=CR27"/> <meta name="citation_reference" content="citation_title=List of major earthquakes in Japan Part 1; citation_inbook_title=Encyclopedia of earthquake; citation_publication_date=1987; citation_pages=467-501; citation_id=CR28; citation_author=I Kayano; citation_publisher=Asakura Publishing"/> <meta name="citation_reference" content="citation_title=Ansei large earthquake and people—Social history of earthquakes; citation_publication_date=1983; citation_id=CR29; citation_author=I Kitahara; citation_publisher=San-ichi Publishing"/> <meta name="citation_reference" content="citation_journal_title=Hist Seismol; citation_title=An innovative fact on the focal area of 1703 Genroku earthquake from the detailed examination of seismic intensities; citation_author=RS Matsu’ura, M Nakamura; citation_volume=31; citation_publication_date=2016; citation_pages=9-16; citation_id=CR30"/> <meta name="citation_reference" content="citation_journal_title=Hist Seismol.; citation_title=A new focal area of 1707 Hoei earthquake from the detailed examination of seismic intensities; citation_author=RS Matsu’ura, M Nakamura, I Karakama; citation_volume=26; citation_publication_date=2011; citation_pages=89-90; citation_id=CR31"/> <meta name="citation_reference" content="Matsu’ura RS, Nakamura M, Matsuda T (2011b) On the crustal deformation after the 1707 Hoei earthquake. In: Proc Seismol Soc Jpn Fall 2011, D11-08, p 120 (in Japanese) "/> <meta name="citation_reference" content="citation_journal_title=Trans Seismol Soc Jpn; citation_title=Notes on the great earthquakes of Japan; citation_author=J Milne; citation_volume=3; citation_publication_date=1881; citation_pages=65-102; citation_id=CR33"/> <meta name="citation_reference" content="citation_journal_title=Trans Seismol Soc Jpn; citation_title=The distribution of seismic activity in Japan; citation_author=J Milne; citation_volume=4; citation_publication_date=1882; citation_pages=1-30; citation_id=CR34"/> <meta name="citation_reference" content="citation_title=Enlarged and revised edition of historical documents on earthquakes in great Japan 1; citation_publication_date=1941; citation_id=CR35; citation_author=K Musha; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=Enlarged and revised edition of historical documents on earthquakes in great Japan 2; citation_publication_date=1943; citation_id=CR36; citation_author=K Musha; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_title=Enlarged and revised edition of historical documents on earthquakes in great Japan 3; citation_publication_date=1943; citation_id=CR37; citation_author=K Musha; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=9; citation_publication_date=1950; citation_pages=1-19; citation_id=CR38"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=10; citation_publication_date=1950; citation_pages=20-51; citation_id=CR39"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=11; citation_publication_date=1950; citation_pages=52-83; citation_id=CR40"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=12; citation_publication_date=1950; citation_pages=84-115; citation_id=CR41"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=13; citation_publication_date=1950; citation_pages=116-1147; citation_id=CR42"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=14; citation_publication_date=1950; citation_pages=148-179; citation_id=CR43"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=15; citation_publication_date=1951; citation_pages=180-203; citation_id=CR44"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=16; citation_publication_date=1951; citation_pages=204-236; citation_id=CR45"/> <meta name="citation_reference" content="citation_title=Historical documents on earthquakes in Japan; citation_publication_date=1951; citation_id=CR46; citation_author=K Musha; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=17; citation_publication_date=1953; citation_pages=237-266; citation_id=CR47"/> <meta name="citation_reference" content="citation_journal_title=Assoc Earthq Disaster Prev; citation_title=Chronological list of large earthquakes in and around Japan; citation_author=K Musha; citation_volume=18; citation_publication_date=1953; citation_pages=267-298; citation_id=CR48"/> <meta name="citation_reference" content="citation_journal_title=Mitteilungen der Deutschen Gesellschaft für Natur-und Völkerkunde Ostasiens; citation_title=Über erdbeben und vulcanausbrüche in Japan; citation_author=E Naumann; citation_volume=2; citation_issue=15; citation_publication_date=1878; citation_pages=163-216; citation_id=CR49"/> <meta name="citation_reference" content="citation_title=Japanese history of disaster and extraordinary; citation_publication_date=1894; citation_id=CR50; citation_author=H Ogashima; citation_publisher=Tokyo"/> <meta name="citation_reference" content="citation_journal_title=Rep Earthq Inv. Com; citation_title=Overview of large earthquakes of Japan; citation_author=F Omori; citation_volume=68B; citation_publication_date=1913; citation_pages=1-180; citation_id=CR51"/> <meta name="citation_reference" content="citation_journal_title=Rep Earthq Inv Com; citation_title=Summary list of large earthquakes of Japan; citation_author=F Omori; citation_volume=88B; citation_publication_date=1919; citation_pages=1-71; citation_id=CR52"/> <meta name="citation_reference" content="citation_journal_title=J Coll Sci Imp Univ Tokyo; citation_title=The earthquake investigation committee catalogue of Japanese earthquakes; citation_author=S Sekiya; citation_volume=11; citation_publication_date=1899; citation_pages=315-388; citation_id=CR53"/> <meta name="citation_reference" content="citation_journal_title=Hist Seismol; citation_title=Crustal movement at the Ashizuri point due to Hoei, Ansei, and Showa Nankai earthquakes; citation_author=M Shishikura, Y Namegaya; citation_volume=26; citation_publication_date=2011; citation_pages=88; citation_id=CR54"/> <meta name="citation_reference" content="Sugawara M (892) Earthquakes, Ruiju Kokushi Vol. 171, Disaster 5. Japanese Goverment (in Japanese) "/> <meta name="citation_reference" content="citation_journal_title=Bull Earthq Res Inst; citation_title=An estimate of future tsunami damage along the Pacific coast of Japan; citation_author=R Takahasi; citation_volume=29; citation_publication_date=1951; citation_pages=71-95; citation_id=CR55"/> <meta name="citation_reference" content="Tayama M (1904) Historical documents on earthquakes in great Japan. Rep Earthq Inv Com, 46A, 1-606, B, 1-640 (in Japanese) "/> <meta name="citation_reference" content="citation_title=Materials for comprehensive list of Japanese destructive earthquakes; citation_publication_date=1975; citation_id=CR57; citation_author=T Usami; citation_publisher=Univ Tokyo Press"/> <meta name="citation_reference" content="citation_title=Materials for comprehensive list of Japanese destructive earthquakes [New edition]; citation_publication_date=1987; citation_id=CR58; citation_author=T Usami; citation_publisher=Univ Tokyo Press"/> <meta name="citation_reference" content="citation_title=Materials for comprehensive list of Japanese destructive earthquakes [Revised and enlarged edition] 416-1995; citation_publication_date=1996; citation_id=CR59; citation_author=T Usami; citation_publisher=Univ Tokyo Press"/> <meta name="citation_reference" content="citation_title=Addendum of historical documents on earthquakes in Japan; citation_publication_date=1998; citation_id=CR60; citation_author=T Usami; citation_publisher=Japan Electric Association"/> <meta name="citation_reference" content="citation_title=Addendum of historical documents on earthquakes in Japan; citation_publication_date=1999; citation_id=CR61; citation_author=T Usami; citation_publisher=Japan Electric Association"/> <meta name="citation_reference" content="Usami T (2002) Addendum of historical documents on earthquakes in Japan, 2, T. Usami, Tokyo, pp 583 (in Japanese) "/> <meta name="citation_reference" content="citation_title=Materials for comprehensive list of Japanese destructive earthquakes [Latest Edition] [416]-2001; citation_publication_date=2003; citation_id=CR63; citation_author=T Usami; citation_publisher=Univ Tokyo Press"/> <meta name="citation_reference" content="Usami T (2005) Addendum of historical documents on earthquakes in Japan, 3, T. Usami, Tokyo, pp 814 (in Japanese) "/> <meta name="citation_reference" content="citation_title=Addendum of historical documents on earthquakes in Japan, 4–1&2, T; citation_publication_date=2008; citation_id=CR65; citation_author=T Usami; citation_publisher=Tokyo"/> <meta name="citation_reference" content="Usami T (2012) Addendum of historical documents on earthquakes in Japan, 5-1&2, T. Usami, Tokyo, pp 1526 (in Japanese) "/> <meta name="citation_reference" content="citation_title=Intensity distribution and isoseismal maps of historical earthquakes in Japan; citation_publication_date=1994; citation_id=CR67; citation_author=T Usami; citation_publisher=Japan Electric Association"/> <meta name="citation_reference" content="citation_title=Materials for comprehensive list of Japanese destructive earthquakes 599-2012 [Revised 2013]; citation_publication_date=2013; citation_id=CR68; citation_author=T Usami; citation_author=H Ishii; citation_author=T Imamura; citation_author=M Takemura; citation_author=RS Matsu’ura; citation_publisher=Univ Tokyo Press"/> <meta name="citation_reference" content="citation_journal_title=J Fac Sci Hokkaido Univ Ser; citation_title=Regional differences in absorption of seismic waves in the upper mantle as inferred from abnormal distributions of seismic intensities; citation_author=T Utsu; citation_volume=7; citation_issue=2; citation_publication_date=1966; citation_pages=359-374; citation_id=CR69"/> <meta name="citation_author" content="Matsu’ura, Ritsuko S."/> <meta name="citation_author_institution" content="Association for the Development of Earthquake Prediction, Tokyo, Japan"/> <meta name="format-detection" content="telephone=no"> <link rel="apple-touch-icon" sizes="180x180" href=/static/img/favicons/darwin/apple-touch-icon.png> <link rel="icon" type="image/png" sizes="192x192" href=/static/img/favicons/darwin/android-chrome-192x192.png> <link rel="icon" type="image/png" sizes="32x32" href=/static/img/favicons/darwin/favicon-32x32.png> <link rel="icon" type="image/png" sizes="16x16" href=/static/img/favicons/darwin/favicon-16x16.png> <link rel="shortcut icon" data-test="shortcut-icon" href=/static/img/favicons/darwin/favicon.ico> <meta name="theme-color" content="#e6e6e6"> <script>(function(H){H.className=H.className.replace(/\bno-js\b/,'js')})(document.documentElement)</script> <link rel="stylesheet" media="screen" href=/static/app-springeropen/css/core-article-f3872e738d.css> <link rel="stylesheet" media="screen" href=/static/app-springeropen/css/core-b516af10bc.css> <link rel="stylesheet" media="print" href=/static/app-springeropen/css/print-b8af42253b.css>  <style>@media only print, only all and (prefers-color-scheme: no-preference), only all and (prefers-color-scheme: light), only all and (prefers-color-scheme: dark) { button{line-height:inherit}html,label{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}html{-webkit-font-smoothing:subpixel-antialiased;box-sizing:border-box;color:#333;font-size:100%;height:100%;line-height:1.61803;overflow-y:scroll}*{box-sizing:inherit}body{background:#fcfcfc;margin:0;max-width:100%;min-height:100%}button,div,form,input,p{margin:0;padding:0}body{padding:0}a{color:#004b83;text-decoration:underline;text-decoration-skip-ink:auto}a>img{vertical-align:middle}h1{font-size:2.25rem}h2{font-size:1.75rem}h1,h2,h3{font-family:Georgia,Palatino,serif;font-style:normal;font-weight:400;line-height:1.4}h3{font-size:1.5rem}h1,h2,h3{margin:0}h2+*{margin-block-start:1rem}h1+*{margin-block-start:3rem}[style*="display: none"]:first-child+*{margin-block-start:0}.c-navbar{background:#e6e6e6;border-bottom:1px solid #d9d9d9;border-top:1px solid #d9d9d9;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;line-height:1.61803;padding:16px 0}.c-navbar--with-submit-button{padding-bottom:24px}@media only screen and (min-width:540px){.c-navbar--with-submit-button{padding-bottom:16px}}.c-navbar__container{display:flex;flex-wrap:wrap;justify-content:space-between;margin:0 auto;max-width:1280px;padding:0 16px}.c-navbar__content{display:flex;flex:0 1 auto}.c-navbar__nav{align-items:center;display:flex;flex-wrap:wrap;gap:16px 16px;list-style:none;margin:0;padding:0}.c-navbar__item{flex:0 0 auto}.c-navbar__link{background:0 0;border:0;color:currentcolor;display:block;text-decoration:none;text-transform:capitalize}.c-navbar__link--is-shown{text-decoration:underline}.c-ad{text-align:center}@media only screen and (min-width:320px){.c-ad{padding:8px}}.c-ad--728x90{background-color:#ccc;display:none}.c-ad--728x90 .c-ad__inner{min-height:calc(1.5em + 94px)}.c-ad--728x90 iframe{height:90px;max-width:970px}@media only screen and (min-width:768px){.js .c-ad--728x90{display:none}.js .u-show-following-ad+.c-ad--728x90{display:block}}.c-ad iframe{border:0;overflow:auto;vertical-align:top}.c-ad__label{color:#333;font-weight:400;line-height:1.5;margin-bottom:4px}.c-ad__label,.c-skip-link{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:.875rem}.c-skip-link{background:#f7fbfe;bottom:auto;color:#004b83;padding:8px;position:absolute;text-align:center;transform:translateY(-100%);z-index:9999}@media (prefers-reduced-motion:reduce){.c-skip-link{transition:top .3s ease-in-out 0s}}@media print{.c-skip-link{display:none}}.c-skip-link:link{color:#004b83}.c-dropdown__button:after{border-color:transparent transparent transparent #fff;border-style:solid;border-width:4px 0 4px 14px;content:"";display:block;height:0;margin-left:3px;width:0}.c-dropdown{display:inline-block;position:relative}.c-dropdown__button{background-color:transparent;border:0;display:inline-block;padding:0;white-space:nowrap}.c-dropdown__button:after{border-color:currentcolor transparent transparent;border-width:5px 4px 0 5px;display:inline-block;margin-left:8px;vertical-align:middle}.c-dropdown__menu{background-color:#fff;border:1px solid #d9d9d9;border-radius:3px;box-shadow:0 2px 6px rgba(0,0,0,.1);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:1.125rem;line-height:1.4;list-style:none;margin:0;padding:8px 0;position:absolute;top:100%;transform:translateY(8px);width:180px;z-index:100}.c-dropdown__menu:after,.c-dropdown__menu:before{border-style:solid;bottom:100%;content:"";display:block;height:0;left:16px;position:absolute;width:0}.c-dropdown__menu:before{border-color:transparent transparent #d9d9d9;border-width:0 9px 9px;transform:translateX(-1px)}.c-dropdown__menu:after{border-color:transparent transparent #fff;border-width:0 8px 8px}.c-dropdown__menu--right{left:auto;right:0}.c-dropdown__menu--right:after,.c-dropdown__menu--right:before{left:auto;right:16px}.c-dropdown__menu--right:before{transform:translateX(1px)}.c-dropdown__link{background-color:transparent;color:#004b83;display:block;padding:4px 16px}.c-header{background-color:#fff;border-bottom:4px solid #00285a;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:1.125rem;padding:16px 0}.c-header__container,.c-header__menu{align-items:center;display:flex;flex-wrap:wrap}@supports (gap:2em){.c-header__container,.c-header__menu{gap:2em 2em}}.c-header__menu{list-style:none;margin:0;padding:0}.c-header__item{color:inherit}@supports not (gap:2em){.c-header__item{margin-left:24px}}.c-header__container{justify-content:space-between;margin:0 auto;max-width:1280px;padding:0 16px}@supports not (gap:2em){.c-header__brand{margin-right:32px}}.c-header__brand a{display:block;text-decoration:none}.c-header__link{color:inherit}.c-form-field{margin-bottom:1em}.c-form-field__label{color:#666;display:block;font-size:.875rem;margin-bottom:.4em}.c-form-field__input{border:1px solid #b3b3b3;border-radius:3px;box-shadow:inset 0 1px 3px 0 rgba(0,0,0,.21);font-size:.875rem;line-height:1.28571;padding:.75em 1em;vertical-align:middle;width:100%}.c-journal-header__title>a{color:inherit}.c-popup-search{background-color:#f2f2f2;box-shadow:0 3px 3px -3px rgba(0,0,0,.21);padding:16px 0;position:relative;z-index:10}@media only screen and (min-width:1024px){.js .c-popup-search{position:absolute;top:100%;width:100%}.c-popup-search__container{margin:auto;max-width:70%}}.ctx-search .c-form-field{margin-bottom:0}.ctx-search .c-form-field__input{border-bottom-right-radius:0;border-top-right-radius:0;margin-right:0}.c-journal-header{background-color:#f2f2f2;padding-top:16px}.c-journal-header__title{font-size:1.3125rem;margin:0 0 16px}.c-journal-header__grid{column-gap:1.25rem;display:grid;grid-template-areas:"main" "side";grid-template-columns:1fr;width:100%}@media only screen and (min-width:768px){.c-journal-header__grid{column-gap:1.25rem;grid-template-areas:"main side";grid-template-columns:1fr 160px}}@media only screen and (min-width:1024px){.c-journal-header__grid{column-gap:3.125rem;grid-template-areas:"main side";grid-template-columns:1fr 190px}}@media only screen and (min-width:768px){.c-journal-header__grid-main{margin:0!important;width:auto!important}}.c-journal-header__grid-main{grid-area:main/main/main/main}.c-navbar{font-size:.875rem}.u-button{align-items:center;background-color:#f2f2f2;background-image:linear-gradient(#fff,#f2f2f2);border:1px solid #ccc;border-radius:2px;cursor:pointer;display:inline-flex;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:1rem;justify-content:center;line-height:1.3;margin:0;padding:8px;position:relative;text-decoration:none;transition:all .25s ease 0s,color .25s ease 0s,border-color .25s ease 0s;width:auto}.u-button svg,.u-button--primary svg,.u-button--tertiary svg{fill:currentcolor}.u-button{color:#004b83}.u-button--primary,.u-button--tertiary{background-color:#33629d;background-image:linear-gradient(#4d76a9,#33629d);border:1px solid rgba(0,59,132,.5);color:#fff}.u-button--tertiary{font-weight:400}.u-button--full-width{display:flex;width:100%}.u-clearfix:after,.u-clearfix:before{content:"";display:table}.u-clearfix:after{clear:both}.u-color-open-access{color:#b74616}.u-container{margin:0 auto;max-width:1280px;padding:0 16px}.u-display-flex{display:flex;width:100%}.u-align-items-center{align-items:center}.u-justify-content-space-between{justify-content:space-between}.u-flex-static{flex:0 0 auto}.u-display-none{display:none}.js .u-js-hide{display:none;visibility:hidden}@media print{.u-hide-print{display:none}}.u-icon{fill:currentcolor;display:inline-block;height:1em;transform:translate(0);vertical-align:text-top;width:1em}.u-list-reset{list-style:none;margin:0;padding:0}.u-position-relative{position:relative}.u-mt-32{margin-top:32px}.u-mr-24{margin-right:24px}.u-mr-48{margin-right:48px}.u-mb-32{margin-bottom:32px}.u-ml-8{margin-left:8px}.u-button-reset{background-color:transparent;border:0;padding:0}.u-text-sm{font-size:1rem}.u-h3,.u-h4{font-style:normal;line-height:1.4}.u-h3{font-family:Georgia,Palatino,serif;font-size:1.5rem;font-weight:400}.u-h4{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:1.25rem;font-weight:700}.u-vh-full{min-height:100vh}.u-hide{display:none;visibility:hidden}.u-hide:first-child+*{margin-block-start:0}@media only screen and (min-width:1024px){.u-hide-at-lg{display:none;visibility:hidden}}@media only screen and (max-width:1023px){.u-hide-at-lt-lg{display:none;visibility:hidden}.u-hide-at-lt-lg:first-child+*{margin-block-start:0}}.u-visually-hidden{clip:rect(0,0,0,0);border:0;height:1px;margin:-100%;overflow:hidden;padding:0;position:absolute!important;width:1px}.u-button--tertiary{font-size:.875rem;padding:8px 16px}@media only screen and (max-width:539px){.u-button--alt-colour-on-mobile{background-color:#f2f2f2;background-image:linear-gradient(#fff,#f2f2f2);border:1px solid #ccc;color:#004b83}}body{font-size:1.125rem}.c-header__navigation{display:flex;gap:.5rem .5rem} }</style> <style>@media only print, only all and (prefers-color-scheme: no-preference), only all and (prefers-color-scheme: light), only all and (prefers-color-scheme: dark) { button{line-height:inherit}html,label{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}html{-webkit-font-smoothing:subpixel-antialiased;box-sizing:border-box;color:#333;font-size:100%;height:100%;line-height:1.61803;overflow-y:scroll}*{box-sizing:inherit}body{background:#fcfcfc;margin:0;max-width:100%;min-height:100%}button,div,form,input,p{margin:0;padding:0}body{padding:0}a{color:#004b83;overflow-wrap:break-word;text-decoration:underline;text-decoration-skip-ink:auto;word-break:break-word}a>img{vertical-align:middle}h1{font-size:2.25rem}h2{font-size:1.75rem}h1,h2,h3{font-family:Georgia,Palatino,serif;font-style:normal;font-weight:400;line-height:1.4}h3{font-size:1.5rem}h1,h2,h3{margin:0}h2+*{margin-block-start:1rem}h1+*{margin-block-start:3rem}[style*="display: none"]:first-child+*{margin-block-start:0}p{overflow-wrap:break-word;word-break:break-word}.c-article-associated-content__container .c-article-associated-content__collection-label,.u-h3{font-weight:700}.u-h3{font-size:1.5rem}.c-reading-companion__figure-title,.u-h4{font-size:1.25rem;font-weight:700}body{font-size:1.125rem}.c-article-header{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;margin-bottom:40px}.c-article-identifiers{color:#6f6f6f;display:flex;flex-wrap:wrap;font-size:1rem;line-height:1.3;list-style:none;margin:0 0 8px;padding:0}.c-article-identifiers__item{border-right:1px solid #6f6f6f;list-style:none;margin-right:8px;padding-right:8px}.c-article-identifiers__item:last-child{border-right:0;margin-right:0;padding-right:0}.c-article-title{font-size:1.5rem;line-height:1.25;margin-bottom:16px}@media only screen and (min-width:768px){.c-article-title{font-size:1.875rem;line-height:1.2}}.c-article-author-list{display:inline;font-size:1rem;list-style:none;margin:0 8px 0 0;padding:0;width:100%}.c-article-author-list__item{display:inline;padding-right:0}.c-article-author-list svg{margin-left:4px}.c-article-author-list__show-more{display:none;margin-right:4px}.c-article-author-list__button,.js .c-article-author-list__item--hide,.js .c-article-author-list__show-more{display:none}.js .c-article-author-list--long .c-article-author-list__show-more,.js .c-article-author-list--long+.c-article-author-list__button{display:inline}@media only screen and (max-width:539px){.js .c-article-author-list__item--hide-small-screen{display:none}.js .c-article-author-list--short .c-article-author-list__show-more,.js .c-article-author-list--short+.c-article-author-list__button{display:inline}}#uptodate-client,.js .c-article-author-list--expanded .c-article-author-list__show-more{display:none!important}.js .c-article-author-list--expanded .c-article-author-list__item--hide-small-screen{display:inline!important}.c-article-author-list__button,.c-button-author-list{background:#ebf1f5;border:4px solid #ebf1f5;border-radius:20px;color:#666;font-size:.875rem;line-height:1.4;padding:2px 11px 2px 8px;text-decoration:none}.c-article-author-list__button svg,.c-button-author-list svg{margin:1px 4px 0 0}.c-article-author-list__button:hover,.c-button-author-list:hover{background:#173962;border-color:transparent;color:#fff}.c-article-info-details{font-size:1rem;margin-bottom:8px;margin-top:16px}.c-article-info-details__cite-as{border-left:1px solid #6f6f6f;margin-left:8px;padding-left:8px}.c-article-metrics-bar{display:flex;flex-wrap:wrap;font-size:1rem;line-height:1.3}.c-article-metrics-bar__wrapper{margin:0 0 16px}.c-article-metrics-bar__item{align-items:baseline;border-right:1px solid #6f6f6f;margin-right:8px}.c-article-metrics-bar__item:last-child{border-right:0}.c-article-metrics-bar__count{font-weight:700;margin:0}.c-article-metrics-bar__label{color:#626262;font-style:normal;font-weight:400;margin:0 10px 0 5px}.c-article-metrics-bar__details{margin:0}.c-article-main-column{font-family:Georgia,Palatino,serif;margin-right:8.6%;width:60.2%}@media only screen and (max-width:1023px){.c-article-main-column{margin-right:0;width:100%}}.c-article-extras{float:left;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;width:31.2%}@media only screen and (max-width:1023px){.c-article-extras{display:none}}.c-article-associated-content__container .c-article-associated-content__title,.c-article-section__title{border-bottom:2px solid #d5d5d5;font-size:1.25rem;margin:0;padding-bottom:8px}@media only screen and (min-width:768px){.c-article-associated-content__container .c-article-associated-content__title,.c-article-section__title{font-size:1.5rem;line-height:1.24}}.c-article-associated-content__container .c-article-associated-content__title{margin-bottom:8px}.c-article-section{clear:both}.c-article-section__content{margin-bottom:40px;margin-top:0;padding-top:8px}@media only screen and (max-width:1023px){.c-article-section__content{padding-left:0}}.c-article__sub-heading{color:#222;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:1.125rem;font-style:normal;font-weight:400;line-height:1.3;margin:24px 0 8px}@media only screen and (min-width:768px){.c-article__sub-heading{font-size:1.5rem;line-height:1.24}}.c-article__sub-heading:first-child{margin-top:0}.c-article-authors-search{margin-bottom:24px;margin-top:0}.c-article-authors-search__item,.c-article-authors-search__title{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}.c-article-authors-search__title{color:#626262;font-size:1.05rem;font-weight:700;margin:0;padding:0}.c-article-authors-search__item{font-size:1rem}.c-article-authors-search__text{margin:0}.c-article-share-box__no-sharelink-info{font-size:.813rem;font-weight:700;margin-bottom:24px;padding-top:4px}.c-article-share-box__only-read-input{border:1px solid #d5d5d5;box-sizing:content-box;display:inline-block;font-size:.875rem;font-weight:700;height:24px;margin-bottom:8px;padding:8px 10px}.c-article-share-box__button--link-like{background-color:transparent;border:0;color:#069;cursor:pointer;font-size:.875rem;margin-bottom:8px;margin-left:10px}.c-article-associated-content__container .c-article-associated-content__collection-label{font-size:.875rem;line-height:1.4}.c-article-associated-content__container .c-article-associated-content__collection-title{line-height:1.3}.c-context-bar{box-shadow:0 0 10px 0 rgba(51,51,51,.2);position:relative;width:100%}.c-context-bar__title{display:none}.c-reading-companion{clear:both;min-height:389px}.c-reading-companion__sticky{max-width:389px}.c-reading-companion__scroll-pane{margin:0;min-height:200px;overflow:hidden auto}.c-reading-companion__tabs{display:flex;flex-flow:row nowrap;font-size:1rem;list-style:none;margin:0 0 8px;padding:0}.c-reading-companion__tabs>li{flex-grow:1}.c-reading-companion__tab{background-color:#eee;border:1px solid #d5d5d5;border-image:initial;border-left-width:0;color:#069;font-size:1rem;padding:8px 8px 8px 15px;text-align:left;width:100%}.c-reading-companion__tabs li:first-child .c-reading-companion__tab{border-left-width:1px}.c-reading-companion__tab--active{background-color:#fcfcfc;border-bottom:1px solid #fcfcfc;color:#222;font-weight:700}.c-reading-companion__sections-list{list-style:none;padding:0}.c-reading-companion__figures-list,.c-reading-companion__references-list{list-style:none;min-height:389px;padding:0}.c-reading-companion__references-list--numeric{list-style:decimal inside}.c-reading-companion__sections-list{margin:0 0 8px;min-height:50px}.c-reading-companion__section-item{font-size:1rem;padding:0}.c-reading-companion__section-item a{display:block;line-height:1.5;overflow:hidden;padding:8px 0 8px 16px;text-overflow:ellipsis;white-space:nowrap}.c-reading-companion__figure-item{border-top:1px solid #d5d5d5;font-size:1rem;padding:16px 8px 16px 0}.c-reading-companion__figure-item:first-child{border-top:none;padding-top:8px}.c-reading-companion__reference-item{border-top:1px solid #d5d5d5;font-size:1rem;padding:8px 8px 8px 16px}.c-reading-companion__reference-item:first-child{border-top:none}.c-reading-companion__reference-item a{word-break:break-word}.c-reading-companion__reference-citation{display:inline}.c-reading-companion__reference-links{font-size:.813rem;font-weight:700;list-style:none;margin:8px 0 0;padding:0;text-align:right}.c-reading-companion__reference-links>a{display:inline-block;padding-left:8px}.c-reading-companion__reference-links>a:first-child{display:inline-block;padding-left:0}.c-reading-companion__figure-title{display:block;margin:0 0 8px}.c-reading-companion__figure-links{display:flex;justify-content:space-between;margin:8px 0 0}.c-reading-companion__figure-links>a{align-items:center;display:flex}.c-reading-companion__figure-full-link svg{height:.8em;margin-left:2px}.c-reading-companion__panel{border-top:none;display:none;margin-top:0;padding-top:0}.c-reading-companion__panel--active{display:block}.c-pdf-download__link .u-icon{padding-top:2px}.c-pdf-download{display:flex;margin-bottom:16px;max-height:48px}@media only screen and (min-width:540px){.c-pdf-download{max-height:none}}@media only screen and (min-width:1024px){.c-pdf-download{max-height:48px}}.c-pdf-download__link{display:flex;flex:1 1 0%;padding:13px 24px!important}.c-pdf-download__text{padding-right:4px}@media only screen and (max-width:539px){.c-pdf-download__text{text-transform:capitalize}}@media only screen and (min-width:540px){.c-pdf-download__text{padding-right:8px}}.c-pdf-container{display:flex;justify-content:flex-end}@media only screen and (max-width:539px){.c-pdf-container .c-pdf-download{display:flex;flex-basis:100%}}.u-display-none{display:none}.js .u-js-hide,.u-hide{display:none;visibility:hidden}.u-hide:first-child+*{margin-block-start:0}.u-visually-hidden{clip:rect(0,0,0,0);border:0;height:1px;margin:-100%;overflow:hidden;padding:0;position:absolute!important;width:1px}@media print{.u-hide-print{display:none}}@media only screen and (min-width:1024px){.u-hide-at-lg{display:none;visibility:hidden}}.u-icon{fill:currentcolor;display:inline-block;height:1em;transform:translate(0);vertical-align:text-top;width:1em}.u-list-reset{list-style:none;margin:0;padding:0}.hide{display:none;visibility:hidden}.c-journal-header__title>a{color:inherit}.c-article-associated-content__container .c-article-associated-content__collection.collection~.c-article-associated-content__collection.collection .c-article-associated-content__collection-label,.c-article-associated-content__container .c-article-associated-content__collection.section~.c-article-associated-content__collection.section .c-article-associated-content__collection-label,.c-article-associated-content__container .c-article-associated-content__title{display:none}.c-article-associated-content__container a{text-decoration:underline}.c-article-associated-content__container .c-article-associated-content__collection.collection .c-article-associated-content__collection-label,.c-article-associated-content__container .c-article-associated-content__collection.section .c-article-associated-content__collection-label{display:block}.c-article-associated-content__container .c-article-associated-content__collection.collection,.c-article-associated-content__container .c-article-associated-content__collection.section{margin-bottom:5px}.c-article-associated-content__container .c-article-associated-content__collection.section~.c-article-associated-content__collection.collection{margin-top:28px}.c-article-associated-content__container .c-article-associated-content__collection:first-child{margin-top:0}.c-article-associated-content__container .c-article-associated-content__collection-label{color:#1b3051;margin-bottom:8px}.c-article-associated-content__container .c-article-associated-content__collection-title{font-size:1.0625rem;font-weight:400} }</style> <link rel="stylesheet" data-test="critical-css-handler" data-inline-css-source="critical-css" href="/static/app-springeropen/css/enhanced-b9a79d5aab.css" media="print" onload="this.media='only print, only all and (prefers-color-scheme: no-preference), only all and (prefers-color-scheme: light), only all and (prefers-color-scheme: dark)';this.onload=null"> <link rel="stylesheet" data-test="critical-css-handler" data-inline-css-source="critical-css" href="/static/app-springeropen/css/enhanced-article-6a72e2d688.css" media="print" onload="this.media='only print, only all and (prefers-color-scheme: no-preference), only all and (prefers-color-scheme: light), only all and (prefers-color-scheme: dark)';this.onload=null"> <script type="text/javascript"> config = { env: 'live', site: 'geoscienceletters.springeropen.com', siteWithPath: 'geoscienceletters.springeropen.com' + window.location.pathname, twitterHashtag: '', cmsPrefix: 'https://studio-cms.springernature.com/studio/', doi: '10.1186/s40562-017-0069-4', figshareScriptUrl: 'https://widgets.figshare.com/static/figshare.js', hasFigshareInvoked: false, publisherBrand: 'SpringerOpen', mustardcut: false }; </script> <script type="text/javascript" data-test="dataLayer"> window.dataLayer = [{"content":{"article":{"doi":"10.1186/s40562-017-0069-4","articleType":"Review","peerReviewType":"Closed","supplement":null,"keywords":"Japanese historical seismology;Variations in repeated earthquakes;Compiled historical materials;Historical maximum intensity"},"contentInfo":{"imprint":"SpringerOpen","title":"A short history of Japanese historical seismology: past and the present","publishedAt":1485561600000,"publishedAtDate":"2017-01-28","author":["Ritsuko S. Matsu’ura"],"collection":[{"collectionID":"AC_34a8c8494393e9600542a1e764bee3b4","collectionName":"Historical and Geological Studies of Earthquakes"}]},"attributes":{"deliveryPlatform":"oscar","template":"classic","cms":null,"copyright":{"creativeCommonsType":"CC BY","openAccess":true},"environment":"live"},"journal":{"siteKey":"geoscienceletters.springeropen.com","volume":"4","issue":"1","title":"Geoscience Letters","type":null,"journalID":40562,"section":[]},"category":{"pmc":{"primarySubject":"Earth Sciences"},"contentType":"Review","publishingSegment":"EES 10","snt":["Earth Sciences","Atmospheric Science","Geophysics","Ocean Sciences","Planetary Science","Biogeosciences"]}},"session":{"authentication":{"authenticationID":[]}},"version":"1.0.0","page":{"category":{"pageType":"article"},"attributes":{"featureFlags":[],"environment":"live","darwin":false}},"japan":false,"event":"dataLayerCreated","collection":null,"publisherBrand":"SpringerOpen"}]; </script> <script> window.dataLayer = window.dataLayer || []; window.dataLayer.push({ ga4MeasurementId: 'G-PJCTJWPV25', ga360TrackingId: 'UA-54492316-9', twitterId: 'o47a2', baiduId: '29dee5557e2c7961c284a143a770fac0', ga4ServerUrl: 'https://collect.biomedcentral.com', imprint: 'springeropen' }); </script> <script> (function(w, d) { w.config = w.config || {}; w.config.mustardcut = false; if (w.matchMedia && w.matchMedia('only print, only all and (prefers-color-scheme: no-preference), only all and (prefers-color-scheme: light), only all and (prefers-color-scheme: dark)').matches) { w.config.mustardcut = true; d.classList.add('js'); d.classList.remove('grade-c'); d.classList.remove('no-js'); } })(window, document.documentElement); </script> <script> (function () { if ( typeof window.CustomEvent === "function" ) return false; function CustomEvent ( event, params ) { params = params || { bubbles: false, cancelable: false, detail: null }; var evt = document.createEvent( 'CustomEvent' ); evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail ); return evt; } CustomEvent.prototype = window.Event.prototype; window.CustomEvent = CustomEvent; })(); </script> <script class="js-entry"> if (window.config.mustardcut) { (function(w, d) { window.Component = {}; window.suppressShareButton = true; window.onArticlePage = true; var currentScript = d.currentScript || d.head.querySelector('script.js-entry'); function catchNoModuleSupport() { var scriptEl = d.createElement('script'); return (!('noModule' in scriptEl) && 'onbeforeload' in scriptEl) } var headScripts = [ {'src': '/static/js/polyfill-es5-bundle-572d4fec60.js', 'async': false} ]; var bodyScripts = [ {'src': '/static/js/app-es5-bundle-d0ac94c97e.js', 'async': false, 'module': false}, {'src': '/static/js/app-es6-bundle-5ee1a6879c.js', 'async': false, 'module': true} , {'src': '/static/js/global-article-es5-bundle-ae3b685a1c.js', 'async': false, 'module': false}, {'src': '/static/js/global-article-es6-bundle-f72e3cd2ca.js', 'async': false, 'module': true} ]; function createScript(script) { var scriptEl = d.createElement('script'); scriptEl.src = script.src; scriptEl.async = script.async; if (script.module === true) { scriptEl.type = "module"; if (catchNoModuleSupport()) { scriptEl.src = ''; } } else if (script.module === false) { scriptEl.setAttribute('nomodule', true) } if (script.charset) { scriptEl.setAttribute('charset', script.charset); } return scriptEl; } for (var i = 0; i < headScripts.length; ++i) { var scriptEl = createScript(headScripts[i]); currentScript.parentNode.insertBefore(scriptEl, currentScript.nextSibling); } d.addEventListener('DOMContentLoaded', function() { for (var i = 0; i < bodyScripts.length; ++i) { var scriptEl = createScript(bodyScripts[i]); d.body.appendChild(scriptEl); } }); // Webfont repeat view var config = w.config; if (config && config.publisherBrand && sessionStorage.fontsLoaded === 'true') { d.documentElement.className += ' webfonts-loaded'; } })(window, document); } </script> <script data-src="https://cdn.optimizely.com/js/27195530232.js" data-cc-script="C03"></script> <script data-test="gtm-head"> window.initGTM = function() { if (window.config.mustardcut) { (function (w, d, s, l, i) { w[l] = w[l] || []; w[l].push({'gtm.start': new Date().getTime(), event: 'gtm.js'}); var f = d.getElementsByTagName(s)[0], j = d.createElement(s), dl = l != 'dataLayer' ? '&l=' + l : ''; j.async = true; j.src = 'https://www.googletagmanager.com/gtm.js?id=' + i + dl; f.parentNode.insertBefore(j, f); })(window, document, 'script', 'dataLayer', 'GTM-MRVXSHQ'); } } </script> <meta name="360-site-verification" content="6ebcece7bd3d627674314d9ecc077510" /> <script> (function (w, d, t) { function cc() { var h = w.location.hostname; var e = d.createElement(t), s = d.getElementsByTagName(t)[0]; if (h.indexOf('springer.com') > -1 && h.indexOf('biomedcentral.com') === -1 && h.indexOf('springeropen.com') === -1) { if (h.indexOf('link-qa.springer.com') > -1 || h.indexOf('test-www.springer.com') > -1) { e.src = 'https://cmp.springer.com/production_live/en/consent-bundle-17-52.js'; e.setAttribute('onload', "initGTM(window,document,'script','dataLayer','GTM-MRVXSHQ')"); } else { e.src = 'https://cmp.springer.com/production_live/en/consent-bundle-17-52.js'; e.setAttribute('onload', "initGTM(window,document,'script','dataLayer','GTM-MRVXSHQ')"); } } else if (h.indexOf('biomedcentral.com') > -1) { if (h.indexOf('biomedcentral.com.qa') > -1) { e.src = 'https://cmp.biomedcentral.com/production_live/en/consent-bundle-15-36.js'; e.setAttribute('onload', "initGTM(window,document,'script','dataLayer','GTM-MRVXSHQ')"); } else { e.src = 'https://cmp.biomedcentral.com/production_live/en/consent-bundle-15-36.js'; e.setAttribute('onload', "initGTM(window,document,'script','dataLayer','GTM-MRVXSHQ')"); } } else if (h.indexOf('springeropen.com') > -1) { if (h.indexOf('springeropen.com.qa') > -1) { e.src = 'https://cmp.springernature.com/production_live/en/consent-bundle-16-34.js'; e.setAttribute('onload', "initGTM(window,document,'script','dataLayer','GTM-MRVXSHQ')"); } else { e.src = 'https://cmp.springernature.com/production_live/en/consent-bundle-16-34.js'; e.setAttribute('onload', "initGTM(window,document,'script','dataLayer','GTM-MRVXSHQ')"); } } else if (h.indexOf('springernature.com') > -1) { if (h.indexOf('beta-qa.springernature.com') > -1) { e.src = 'https://cmp.springernature.com/production_live/en/consent-bundle-49-43.js'; e.setAttribute('onload', "initGTM(window,document,'script','dataLayer','GTM-NK22KLS')"); } else { e.src = 'https://cmp.springernature.com/production_live/en/consent-bundle-49-43.js'; e.setAttribute('onload', "initGTM(window,document,'script','dataLayer','GTM-NK22KLS')"); } } else { e.src = '/static/js/cookie-consent-es5-bundle-cb57c2c98a.js'; e.setAttribute('data-consent', h); } s.insertAdjacentElement('afterend', e); } cc(); })(window, document, 'script'); </script> <link rel="canonical" href="https://geoscienceletters.springeropen.com/articles/10.1186/s40562-017-0069-4"/> <meta property="og:url" content="https://geoscienceletters.springeropen.com/articles/10.1186/s40562-017-0069-4"/> <meta property="og:type" content="article"/> <meta property="og:site_name" content="SpringerOpen"/> <meta property="og:title" content="A short history of Japanese historical seismology: past and the present - Geoscience Letters"/> <meta property="og:description" content="Since seismicity in Japan is fairly high, Japanese interest in historical seismicity can be traced back to the nineth century, only a few centuries after the formation of the ancient ruling state. A 1000 years later, 2 years earlier than the modern seismological society was founded, the research on historical seismology started in Japan in 1878. By the accumulation for the recent 140 years, the present Japanese seismologists can read many historical materials without reading cursive scripts. We have a convenient access to the historical information related to earthquakes, in the modern characters of 27,759 pages. We now have 214 epicenters of historical earthquakes from 599 ad to 1872. Among them, 134 events in the early modern period were assigned hypocentral depths and proper magnitudes. The intensity data of 8700 places by those events were estimated. These precise intensity data enabled us to compare the detailed source areas of pairs of repeated historical earthquakes, such as the 1703 Genroku earthquake with the 1923 Kanto earthquake, and the 1707 Hoei earthquake with the summation of the 1854 Ansei Tokai and Ansei Nankai earthquakes. It is revealed that the focal area of the former larger event cannot completely include those of the latter smaller earthquakes, although those were believed to be typical sets of characteristic interplate earthquakes at the Sagami trough and at the Nankai trough. Research on historical earthquakes is very important to assess the seismic hazard in the future. We still have one-fifth events of the early modern period to be analyzed in detail. The compilation of places experienced high intensities in the modern events is also necessary. For the ancient and medieval periods, many equivocal events are still left. The further advance of the interdisciplinary research on historical seismology is necessary."/> <meta property="og:image" content="https://static-content.springer.com/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig1_HTML.gif"/> <script type="application/ld+json">{"mainEntity":{"headline":"A short history of Japanese historical seismology: past and the present","description":"Since seismicity in Japan is fairly high, Japanese interest in historical seismicity can be traced back to the nineth century, only a few centuries after the formation of the ancient ruling state. A 1000 years later, 2 years earlier than the modern seismological society was founded, the research on historical seismology started in Japan in 1878. By the accumulation for the recent 140 years, the present Japanese seismologists can read many historical materials without reading cursive scripts. We have a convenient access to the historical information related to earthquakes, in the modern characters of 27,759 pages. We now have 214 epicenters of historical earthquakes from 599 ad to 1872. Among them, 134 events in the early modern period were assigned hypocentral depths and proper magnitudes. The intensity data of 8700 places by those events were estimated. These precise intensity data enabled us to compare the detailed source areas of pairs of repeated historical earthquakes, such as the 1703 Genroku earthquake with the 1923 Kanto earthquake, and the 1707 Hoei earthquake with the summation of the 1854 Ansei Tokai and Ansei Nankai earthquakes. It is revealed that the focal area of the former larger event cannot completely include those of the latter smaller earthquakes, although those were believed to be typical sets of characteristic interplate earthquakes at the Sagami trough and at the Nankai trough. Research on historical earthquakes is very important to assess the seismic hazard in the future. We still have one-fifth events of the early modern period to be analyzed in detail. The compilation of places experienced high intensities in the modern events is also necessary. For the ancient and medieval periods, many equivocal events are still left. The further advance of the interdisciplinary research on historical seismology is necessary.","datePublished":"2017-01-28T00:00:00Z","dateModified":"2017-01-28T00:00:00Z","pageStart":"1","pageEnd":"15","license":"http://creativecommons.org/licenses/by/4.0/","sameAs":"https://doi.org/10.1186/s40562-017-0069-4","keywords":["Japanese historical seismology","Variations in repeated earthquakes","Compiled historical materials","Historical maximum intensity","Earth Sciences","general","Atmospheric Sciences","Geophysics/Geodesy","Oceanography","Planetology","Biogeosciences"],"image":["https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig1_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig2_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig3_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig4_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig5_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig6_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig7_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig8_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig9_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig10_HTML.gif","https://media.springernature.com/lw1200/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig11_HTML.gif"],"isPartOf":{"name":"Geoscience Letters","issn":["2196-4092"],"volumeNumber":"4","@type":["Periodical","PublicationVolume"]},"publisher":{"name":"Springer International Publishing","logo":{"url":"https://www.springernature.com/app-sn/public/images/logo-springernature.png","@type":"ImageObject"},"@type":"Organization"},"author":[{"name":"Ritsuko S. Matsu’ura","url":"http://orcid.org/0000-0002-5108-8343","affiliation":[{"name":"Association for the Development of Earthquake Prediction","address":{"name":"Association for the Development of Earthquake Prediction, Tokyo, Japan","@type":"PostalAddress"},"@type":"Organization"}],"email":"matsuura@adep.or.jp","@type":"Person"}],"isAccessibleForFree":true,"@type":"ScholarlyArticle"},"@context":"https://schema.org","@type":"WebPage"}</script> </head> <body class="journal journal-fulltext" > <div class="ctm"></div>  <noscript> <iframe src="https://www.googletagmanager.com/ns.html?id=GTM-MRVXSHQ" height="0" width="0" style="display:none;visibility:hidden"></iframe> </noscript>  <div class="u-visually-hidden" aria-hidden="true"> <?xml version="1.0" encoding="UTF-8"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><defs><path id="a" d="M0 .74h56.72v55.24H0z"/></defs><symbol id="icon-access" viewBox="0 0 18 18"><path d="m14 8c.5522847 0 1 .44771525 1 1v7h2.5c.2761424 0 .5.2238576.5.5v1.5h-18v-1.5c0-.2761424.22385763-.5.5-.5h2.5v-7c0-.55228475.44771525-1 1-1s1 .44771525 1 1v6.9996556h8v-6.9996556c0-.55228475.4477153-1 1-1zm-8 0 2 1v5l-2 1zm6 0v7l-2-1v-5zm-2.42653766-7.59857636 7.03554716 4.92488299c.4162533.29137735.5174853.86502537.226108 1.28127873-.1721584.24594054-.4534847.39241464-.7536934.39241464h-14.16284822c-.50810197 0-.92-.41189803-.92-.92 0-.30020869.1464741-.58153499.39241464-.75369337l7.03554714-4.92488299c.34432015-.2410241.80260453-.2410241 1.14692468 0zm-.57346234 2.03988748-3.65526982 2.55868888h7.31053962z" fill-rule="evenodd"/></symbol><symbol id="icon-account" viewBox="0 0 18 18"><path d="m10.2379028 16.9048051c1.3083556-.2032362 2.5118471-.7235183 3.5294683-1.4798399-.8731327-2.5141501-2.0638925-3.935978-3.7673711-4.3188248v-1.27684611c1.1651924-.41183641 2-1.52307546 2-2.82929429 0-1.65685425-1.3431458-3-3-3-1.65685425 0-3 1.34314575-3 3 0 1.30621883.83480763 2.41745788 2 2.82929429v1.27684611c-1.70347856.3828468-2.89423845 1.8046747-3.76737114 4.3188248 1.01762123.7563216 2.22111275 1.2766037 3.52946833 1.4798399.40563808.0629726.81921174.0951949 1.23790281.0951949s.83226473-.0322223 1.2379028-.0951949zm4.3421782-2.1721994c1.4927655-1.4532925 2.419919-3.484675 2.419919-5.7326057 0-4.418278-3.581722-8-8-8s-8 3.581722-8 8c0 2.2479307.92715352 4.2793132 2.41991895 5.7326057.75688473-2.0164459 1.83949951-3.6071894 3.48926591-4.3218837-1.14534283-.70360829-1.90918486-1.96796271-1.90918486-3.410722 0-2.209139 1.790861-4 4-4s4 1.790861 4 4c0 1.44275929-.763842 2.70711371-1.9091849 3.410722 1.6497664.7146943 2.7323812 2.3054378 3.4892659 4.3218837zm-5.580081 3.2673943c-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9 4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9z" fill-rule="evenodd"/></symbol><symbol id="icon-alert" viewBox="0 0 18 18"><path d="m4 10h2.5c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-3.08578644l-1.12132034 1.1213203c-.18753638.1875364-.29289322.4418903-.29289322.7071068v.1715729h14v-.1715729c0-.2652165-.1053568-.5195704-.2928932-.7071068l-1.7071068-1.7071067v-3.4142136c0-2.76142375-2.2385763-5-5-5-2.76142375 0-5 2.23857625-5 5zm3 4c0 1.1045695.8954305 2 2 2s2-.8954305 2-2zm-5 0c-.55228475 0-1-.4477153-1-1v-.1715729c0-.530433.21071368-1.0391408.58578644-1.4142135l1.41421356-1.4142136v-3c0-3.3137085 2.6862915-6 6-6s6 2.6862915 6 6v3l1.4142136 1.4142136c.3750727.3750727.5857864.8837805.5857864 1.4142135v.1715729c0 .5522847-.4477153 1-1 1h-4c0 1.6568542-1.3431458 3-3 3-1.65685425 0-3-1.3431458-3-3z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-broad" viewBox="0 0 16 16"><path d="m6.10307866 2.97190702v7.69043288l2.44965196-2.44676915c.38776071-.38730439 1.0088052-.39493524 1.38498697-.01919617.38609051.38563612.38643641 1.01053024-.00013864 1.39665039l-4.12239817 4.11754683c-.38616704.3857126-1.01187344.3861062-1.39846576-.0000311l-4.12258206-4.11773056c-.38618426-.38572979-.39254614-1.00476697-.01636437-1.38050605.38609047-.38563611 1.01018509-.38751562 1.4012233.00306241l2.44985644 2.4469734v-8.67638639c0-.54139983.43698413-.98042709.98493125-.98159081l7.89910522-.0043627c.5451687 0 .9871152.44142642.9871152.98595351s-.4419465.98595351-.9871152.98595351z" fill-rule="evenodd" transform="matrix(-1 0 0 -1 14 15)"/></symbol><symbol id="icon-arrow-down" viewBox="0 0 16 16"><path d="m3.28337502 11.5302405 4.03074001 4.176208c.37758093.3912076.98937525.3916069 1.367372-.0000316l4.03091977-4.1763942c.3775978-.3912252.3838182-1.0190815.0160006-1.4001736-.3775061-.39113013-.9877245-.39303641-1.3700683.003106l-2.39538585 2.4818345v-11.6147896l-.00649339-.11662112c-.055753-.49733869-.46370161-.88337888-.95867408-.88337888-.49497246 0-.90292107.38604019-.95867408.88337888l-.00649338.11662112v11.6147896l-2.39518594-2.4816273c-.37913917-.39282218-.98637524-.40056175-1.35419292-.0194697-.37750607.3911302-.37784433 1.0249269.00013556 1.4165479z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-left" viewBox="0 0 16 16"><path d="m4.46975946 3.28337502-4.17620792 4.03074001c-.39120768.37758093-.39160691.98937525.0000316 1.367372l4.1763942 4.03091977c.39122514.3775978 1.01908149.3838182 1.40017357.0160006.39113012-.3775061.3930364-.9877245-.00310603-1.3700683l-2.48183446-2.39538585h11.61478958l.1166211-.00649339c.4973387-.055753.8833789-.46370161.8833789-.95867408 0-.49497246-.3860402-.90292107-.8833789-.95867408l-.1166211-.00649338h-11.61478958l2.4816273-2.39518594c.39282216-.37913917.40056173-.98637524.01946965-1.35419292-.39113012-.37750607-1.02492687-.37784433-1.41654791.00013556z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-right" viewBox="0 0 16 16"><path d="m11.5302405 12.716625 4.176208-4.03074003c.3912076-.37758093.3916069-.98937525-.0000316-1.367372l-4.1763942-4.03091981c-.3912252-.37759778-1.0190815-.38381821-1.4001736-.01600053-.39113013.37750607-.39303641.98772445.003106 1.37006824l2.4818345 2.39538588h-11.6147896l-.11662112.00649339c-.49733869.055753-.88337888.46370161-.88337888.95867408 0 .49497246.38604019.90292107.88337888.95867408l.11662112.00649338h11.6147896l-2.4816273 2.39518592c-.39282218.3791392-.40056175.9863753-.0194697 1.3541929.3911302.3775061 1.0249269.3778444 1.4165479-.0001355z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-sub" viewBox="0 0 16 16"><path d="m7.89692134 4.97190702v7.69043288l-2.44965196-2.4467692c-.38776071-.38730434-1.0088052-.39493519-1.38498697-.0191961-.38609047.3856361-.38643643 1.0105302.00013864 1.3966504l4.12239817 4.1175468c.38616704.3857126 1.01187344.3861062 1.39846576-.0000311l4.12258202-4.1177306c.3861843-.3857298.3925462-1.0047669.0163644-1.380506-.3860905-.38563612-1.0101851-.38751563-1.4012233.0030624l-2.44985643 2.4469734v-8.67638639c0-.54139983-.43698413-.98042709-.98493125-.98159081l-7.89910525-.0043627c-.54516866 0-.98711517.44142642-.98711517.98595351s.44194651.98595351.98711517.98595351z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-up" viewBox="0 0 16 16"><path d="m12.716625 4.46975946-4.03074003-4.17620792c-.37758093-.39120768-.98937525-.39160691-1.367372.0000316l-4.03091981 4.1763942c-.37759778.39122514-.38381821 1.01908149-.01600053 1.40017357.37750607.39113012.98772445.3930364 1.37006824-.00310603l2.39538588-2.48183446v11.61478958l.00649339.1166211c.055753.4973387.46370161.8833789.95867408.8833789.49497246 0 .90292107-.3860402.95867408-.8833789l.00649338-.1166211v-11.61478958l2.39518592 2.4816273c.3791392.39282216.9863753.40056173 1.3541929.01946965.3775061-.39113012.3778444-1.02492687-.0001355-1.41654791z" fill-rule="evenodd"/></symbol><symbol id="icon-article" viewBox="0 0 18 18"><path d="m13 15v-12.9906311c0-.0073595-.0019884-.0093689.0014977-.0093689l-11.00158888.00087166v13.00506804c0 .5482678.44615281.9940603.99415146.9940603h10.27350412c-.1701701-.2941734-.2675644-.6357129-.2675644-1zm-12 .0059397v-13.00506804c0-.5562408.44704472-1.00087166.99850233-1.00087166h11.00299537c.5510129 0 .9985023.45190985.9985023 1.0093689v2.9906311h3v9.9914698c0 1.1065798-.8927712 2.0085302-1.9940603 2.0085302h-12.01187942c-1.09954652 0-1.99406028-.8927712-1.99406028-1.9940603zm13-9.0059397v9c0 .5522847.4477153 1 1 1s1-.4477153 1-1v-9zm-10-2h7v4h-7zm1 1v2h5v-2zm-1 4h7v1h-7zm0 2h7v1h-7zm0 2h7v1h-7z" fill-rule="evenodd"/></symbol><symbol id="icon-audio" viewBox="0 0 18 18"><path d="m13.0957477 13.5588459c-.195279.1937043-.5119137.193729-.7072234.0000551-.1953098-.193674-.1953346-.5077061-.0000556-.7014104 1.0251004-1.0168342 1.6108711-2.3905226 1.6108711-3.85745208 0-1.46604976-.5850634-2.83898246-1.6090736-3.85566829-.1951894-.19379323-.1950192-.50782531.0003802-.70141028.1953993-.19358497.512034-.19341614.7072234.00037709 1.2094886 1.20083761 1.901635 2.8250555 1.901635 4.55670148 0 1.73268608-.6929822 3.35779608-1.9037571 4.55880738zm2.1233994 2.1025159c-.195234.193749-.5118687.1938462-.7072235.0002171-.1953548-.1936292-.1954528-.5076613-.0002189-.7014104 1.5832215-1.5711805 2.4881302-3.6939808 2.4881302-5.96012998 0-2.26581266-.9046382-4.3883241-2.487443-5.95944795-.1952117-.19377107-.1950777-.50780316.0002993-.70141031s.5120117-.19347426.7072234.00029682c1.7683321 1.75528196 2.7800854 4.12911258 2.7800854 6.66056144 0 2.53182498-1.0120556 4.90597838-2.7808529 6.66132328zm-14.21898205-3.6854911c-.5523759 0-1.00016505-.4441085-1.00016505-.991944v-3.96777631c0-.54783558.44778915-.99194407 1.00016505-.99194407h2.0003301l5.41965617-3.8393633c.44948677-.31842296 1.07413994-.21516983 1.39520191.23062232.12116339.16823446.18629727.36981184.18629727.57655577v12.01603479c0 .5478356-.44778914.9919441-1.00016505.9919441-.20845738 0-.41170538-.0645985-.58133413-.184766l-5.41965617-3.8393633zm0-.991944h2.32084805l5.68047235 4.0241292v-12.01603479l-5.68047235 4.02412928h-2.32084805z" fill-rule="evenodd"/></symbol><symbol id="icon-block" viewBox="0 0 24 24"><path d="m0 0h24v24h-24z" fill-rule="evenodd"/></symbol><symbol id="icon-book" viewBox="0 0 18 18"><path d="m4 13v-11h1v11h11v-11h-13c-.55228475 0-1 .44771525-1 1v10.2675644c.29417337-.1701701.63571286-.2675644 1-.2675644zm12 1h-13c-.55228475 0-1 .4477153-1 1s.44771525 1 1 1h13zm0 3h-13c-1.1045695 0-2-.8954305-2-2v-12c0-1.1045695.8954305-2 2-2h13c.5522847 0 1 .44771525 1 1v14c0 .5522847-.4477153 1-1 1zm-8.5-13h6c.2761424 0 .5.22385763.5.5s-.2238576.5-.5.5h-6c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm1 2h4c.2761424 0 .5.22385763.5.5s-.2238576.5-.5.5h-4c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5z" fill-rule="evenodd"/></symbol><symbol id="icon-broad" viewBox="0 0 24 24"><path d="m9.18274226 7.81v7.7999954l2.48162734-2.4816273c.3928221-.3928221 1.0219731-.4005617 1.4030652-.0194696.3911301.3911301.3914806 1.0249268-.0001404 1.4165479l-4.17620796 4.1762079c-.39120769.3912077-1.02508144.3916069-1.41671995-.0000316l-4.1763942-4.1763942c-.39122514-.3912251-.39767006-1.0190815-.01657798-1.4001736.39113012-.3911301 1.02337106-.3930364 1.41951349.0031061l2.48183446 2.4818344v-8.7999954c0-.54911294.4426881-.99439484.99778758-.99557515l8.00221246-.00442485c.5522847 0 1 .44771525 1 1s-.4477153 1-1 1z" fill-rule="evenodd" transform="matrix(-1 0 0 -1 20.182742 24.805206)"/></symbol><symbol id="icon-calendar" viewBox="0 0 18 18"><path d="m12.5 0c.2761424 0 .5.21505737.5.49047852v.50952148h2c1.1072288 0 2 .89451376 2 2v12c0 1.1072288-.8945138 2-2 2h-12c-1.1072288 0-2-.8945138-2-2v-12c0-1.1072288.89451376-2 2-2h1v1h-1c-.55393837 0-1 .44579254-1 1v3h14v-3c0-.55393837-.4457925-1-1-1h-2v1.50952148c0 .27088381-.2319336.49047852-.5.49047852-.2761424 0-.5-.21505737-.5-.49047852v-3.01904296c0-.27088381.2319336-.49047852.5-.49047852zm3.5 7h-14v8c0 .5539384.44579254 1 1 1h12c.5539384 0 1-.4457925 1-1zm-11 6v1h-1v-1zm3 0v1h-1v-1zm3 0v1h-1v-1zm-6-2v1h-1v-1zm3 0v1h-1v-1zm6 0v1h-1v-1zm-3 0v1h-1v-1zm-3-2v1h-1v-1zm6 0v1h-1v-1zm-3 0v1h-1v-1zm-5.5-9c.27614237 0 .5.21505737.5.49047852v.50952148h5v1h-5v1.50952148c0 .27088381-.23193359.49047852-.5.49047852-.27614237 0-.5-.21505737-.5-.49047852v-3.01904296c0-.27088381.23193359-.49047852.5-.49047852z" fill-rule="evenodd"/></symbol><symbol id="icon-cart" viewBox="0 0 18 18"><path d="m5 14c1.1045695 0 2 .8954305 2 2s-.8954305 2-2 2-2-.8954305-2-2 .8954305-2 2-2zm10 0c1.1045695 0 2 .8954305 2 2s-.8954305 2-2 2-2-.8954305-2-2 .8954305-2 2-2zm-10 1c-.55228475 0-1 .4477153-1 1s.44771525 1 1 1 1-.4477153 1-1-.44771525-1-1-1zm10 0c-.5522847 0-1 .4477153-1 1s.4477153 1 1 1 1-.4477153 1-1-.4477153-1-1-1zm-12.82032249-15c.47691417 0 .88746157.33678127.98070211.80449199l.23823144 1.19501025 13.36277974.00045554c.5522847.00001882.9999659.44774934.9999659 1.00004222 0 .07084994-.0075361.14150708-.022474.2107727l-1.2908094 5.98534344c-.1007861.46742419-.5432548.80388386-1.0571651.80388386h-10.24805106c-.59173366 0-1.07142857.4477153-1.07142857 1 0 .5128358.41361449.9355072.94647737.9932723l.1249512.0067277h10.35933776c.2749512 0 .4979349.2228539.4979349.4978051 0 .2749417-.2227336.4978951-.4976753.4980063l-10.35959736.0041886c-1.18346732 0-2.14285714-.8954305-2.14285714-2 0-.6625717.34520317-1.24989198.87690425-1.61383592l-1.63768102-8.19004794c-.01312273-.06561364-.01950005-.131011-.0196107-.19547395l-1.71961253-.00064219c-.27614237 0-.5-.22385762-.5-.5 0-.27614237.22385763-.5.5-.5zm14.53193359 2.99950224h-13.11300004l1.20580469 6.02530174c.11024034-.0163252.22327998-.02480398.33844139-.02480398h10.27064786z"/></symbol><symbol id="icon-chevron-less" viewBox="0 0 10 10"><path d="m5.58578644 4-3.29289322-3.29289322c-.39052429-.39052429-.39052429-1.02368927 0-1.41421356s1.02368927-.39052429 1.41421356 0l4 4c.39052429.39052429.39052429 1.02368927 0 1.41421356l-4 4c-.39052429.39052429-1.02368927.39052429-1.41421356 0s-.39052429-1.02368927 0-1.41421356z" fill-rule="evenodd" transform="matrix(0 -1 -1 0 9 9)"/></symbol><symbol id="icon-chevron-more" viewBox="0 0 10 10"><path d="m5.58578644 6-3.29289322-3.29289322c-.39052429-.39052429-.39052429-1.02368927 0-1.41421356s1.02368927-.39052429 1.41421356 0l4 4c.39052429.39052429.39052429 1.02368927 0 1.41421356l-4 4.00000002c-.39052429.3905243-1.02368927.3905243-1.41421356 0s-.39052429-1.02368929 0-1.41421358z" fill-rule="evenodd" transform="matrix(0 1 -1 0 11 1)"/></symbol><symbol id="icon-chevron-right" viewBox="0 0 10 10"><path d="m5.96738168 4.70639573 2.39518594-2.41447274c.37913917-.38219212.98637524-.38972225 1.35419292-.01894278.37750606.38054586.37784436.99719163-.00013556 1.37821513l-4.03074001 4.06319683c-.37758093.38062133-.98937525.38100976-1.367372-.00003075l-4.03091981-4.06337806c-.37759778-.38063832-.38381821-.99150444-.01600053-1.3622839.37750607-.38054587.98772445-.38240057 1.37006824.00302197l2.39538588 2.4146743.96295325.98624457z" fill-rule="evenodd" transform="matrix(0 -1 1 0 0 10)"/></symbol><symbol id="icon-circle-fill" viewBox="0 0 16 16"><path d="m8 14c-3.3137085 0-6-2.6862915-6-6s2.6862915-6 6-6 6 2.6862915 6 6-2.6862915 6-6 6z" fill-rule="evenodd"/></symbol><symbol id="icon-circle" viewBox="0 0 16 16"><path d="m8 12c2.209139 0 4-1.790861 4-4s-1.790861-4-4-4-4 1.790861-4 4 1.790861 4 4 4zm0 2c-3.3137085 0-6-2.6862915-6-6s2.6862915-6 6-6 6 2.6862915 6 6-2.6862915 6-6 6z" fill-rule="evenodd"/></symbol><symbol id="icon-citation" viewBox="0 0 18 18"><path d="m8.63593473 5.99995183c2.20913897 0 3.99999997 1.79084375 3.99999997 3.99996146 0 1.40730761-.7267788 2.64486871-1.8254829 3.35783281 1.6240224.6764218 2.8754442 2.0093871 3.4610603 3.6412466l-1.0763845.000006c-.5310008-1.2078237-1.5108121-2.1940153-2.7691712-2.7181346l-.79002167-.329052v-1.023992l.63016577-.4089232c.8482885-.5504661 1.3698342-1.4895187 1.3698342-2.51898361 0-1.65683828-1.3431457-2.99996146-2.99999997-2.99996146-1.65685425 0-3 1.34312318-3 2.99996146 0 1.02946491.52154569 1.96851751 1.36983419 2.51898361l.63016581.4089232v1.023992l-.79002171.329052c-1.25835905.5241193-2.23817037 1.5103109-2.76917113 2.7181346l-1.07638453-.000006c.58561612-1.6318595 1.8370379-2.9648248 3.46106024-3.6412466-1.09870405-.7129641-1.82548287-1.9505252-1.82548287-3.35783281 0-2.20911771 1.790861-3.99996146 4-3.99996146zm7.36897597-4.99995183c1.1018574 0 1.9950893.89353404 1.9950893 2.00274083v5.994422c0 1.10608317-.8926228 2.00274087-1.9950893 2.00274087l-3.0049107-.0009037v-1l3.0049107.00091329c.5490631 0 .9950893-.44783123.9950893-1.00275046v-5.994422c0-.55646537-.4450595-1.00275046-.9950893-1.00275046h-14.00982141c-.54906309 0-.99508929.44783123-.99508929 1.00275046v5.9971821c0 .66666024.33333333.99999036 1 .99999036l2-.00091329v1l-2 .0009037c-1 0-2-.99999041-2-1.99998077v-5.9971821c0-1.10608322.8926228-2.00274083 1.99508929-2.00274083zm-8.5049107 2.9999711c.27614237 0 .5.22385547.5.5 0 .2761349-.22385763.5-.5.5h-4c-.27614237 0-.5-.2238651-.5-.5 0-.27614453.22385763-.5.5-.5zm3 0c.2761424 0 .5.22385547.5.5 0 .2761349-.2238576.5-.5.5h-1c-.27614237 0-.5-.2238651-.5-.5 0-.27614453.22385763-.5.5-.5zm4 0c.2761424 0 .5.22385547.5.5 0 .2761349-.2238576.5-.5.5h-2c-.2761424 0-.5-.2238651-.5-.5 0-.27614453.2238576-.5.5-.5z" fill-rule="evenodd"/></symbol><symbol id="icon-close" viewBox="0 0 16 16"><path d="m2.29679575 12.2772478c-.39658757.3965876-.39438847 1.0328109-.00062148 1.4265779.39651227.3965123 1.03246768.3934888 1.42657791-.0006214l4.27724782-4.27724787 4.2772478 4.27724787c.3965876.3965875 1.0328109.3943884 1.4265779.0006214.3965123-.3965122.3934888-1.0324677-.0006214-1.4265779l-4.27724787-4.2772478 4.27724787-4.27724782c.3965875-.39658757.3943884-1.03281091.0006214-1.42657791-.3965122-.39651226-1.0324677-.39348875-1.4265779.00062148l-4.2772478 4.27724782-4.27724782-4.27724782c-.39658757-.39658757-1.03281091-.39438847-1.42657791-.00062148-.39651226.39651227-.39348875 1.03246768.00062148 1.42657791l4.27724782 4.27724782z" fill-rule="evenodd"/></symbol><symbol id="icon-collections" viewBox="0 0 18 18"><path d="m15 4c1.1045695 0 2 .8954305 2 2v9c0 1.1045695-.8954305 2-2 2h-8c-1.1045695 0-2-.8954305-2-2h1c0 .5128358.38604019.9355072.88337887.9932723l.11662113.0067277h8c.5128358 0 .9355072-.3860402.9932723-.8833789l.0067277-.1166211v-9c0-.51283584-.3860402-.93550716-.8833789-.99327227l-.1166211-.00672773h-1v-1zm-4-3c1.1045695 0 2 .8954305 2 2v9c0 1.1045695-.8954305 2-2 2h-8c-1.1045695 0-2-.8954305-2-2v-9c0-1.1045695.8954305-2 2-2zm0 1h-8c-.51283584 0-.93550716.38604019-.99327227.88337887l-.00672773.11662113v9c0 .5128358.38604019.9355072.88337887.9932723l.11662113.0067277h8c.5128358 0 .9355072-.3860402.9932723-.8833789l.0067277-.1166211v-9c0-.51283584-.3860402-.93550716-.8833789-.99327227zm-1.5 7c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-5c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm0-2c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-5c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm0-2c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-5c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5z" fill-rule="evenodd"/></symbol><symbol id="icon-compare" viewBox="0 0 18 18"><path d="m12 3c3.3137085 0 6 2.6862915 6 6s-2.6862915 6-6 6c-1.0928452 0-2.11744941-.2921742-2.99996061-.8026704-.88181407.5102749-1.90678042.8026704-3.00003939.8026704-3.3137085 0-6-2.6862915-6-6s2.6862915-6 6-6c1.09325897 0 2.11822532.29239547 3.00096303.80325037.88158756-.51107621 1.90619177-.80325037 2.99903697-.80325037zm-6 1c-2.76142375 0-5 2.23857625-5 5 0 2.7614237 2.23857625 5 5 5 .74397391 0 1.44999672-.162488 2.08451611-.4539116-1.27652344-1.1000812-2.08451611-2.7287264-2.08451611-4.5460884s.80799267-3.44600721 2.08434391-4.5463015c-.63434719-.29121054-1.34037-.4536985-2.08434391-.4536985zm6 0c-.7439739 0-1.4499967.16248796-2.08451611.45391156 1.27652341 1.10008123 2.08451611 2.72872644 2.08451611 4.54608844s-.8079927 3.4460072-2.08434391 4.5463015c.63434721.2912105 1.34037001.4536985 2.08434391.4536985 2.7614237 0 5-2.2385763 5-5 0-2.76142375-2.2385763-5-5-5zm-1.4162763 7.0005324h-3.16744736c.15614659.3572676.35283837.6927622.58425872 1.0006671h1.99892988c.23142036-.3079049.42811216-.6433995.58425876-1.0006671zm.4162763-2.0005324h-4c0 .34288501.0345146.67770871.10025909 1.0011864h3.79948181c.0657445-.32347769.1002591-.65830139.1002591-1.0011864zm-.4158423-1.99953894h-3.16831543c-.13859957.31730812-.24521946.651783-.31578599.99935097h3.79988742c-.0705665-.34756797-.1771864-.68204285-.315786-.99935097zm-1.58295822-1.999926-.08316107.06199199c-.34550042.27081213-.65446126.58611297-.91825862.93727862h2.00044041c-.28418626-.37830727-.6207872-.71499149-.99902072-.99927061z" fill-rule="evenodd"/></symbol><symbol id="icon-download-file" viewBox="0 0 18 18"><path d="m10.0046024 0c.5497429 0 1.3179837.32258606 1.707238.71184039l4.5763192 4.57631922c.3931386.39313859.7118404 1.16760135.7118404 1.71431368v8.98899651c0 1.1092806-.8945138 2.0085302-1.9940603 2.0085302h-12.01187942c-1.10128908 0-1.99406028-.8926228-1.99406028-1.9950893v-14.00982141c0-1.10185739.88743329-1.99508929 1.99961498-1.99508929zm0 1h-7.00498742c-.55709576 0-.99961498.44271433-.99961498.99508929v14.00982141c0 .5500396.44491393.9950893.99406028.9950893h12.01187942c.5463747 0 .9940603-.4506622.9940603-1.0085302v-8.98899651c0-.28393444-.2150684-.80332809-.4189472-1.0072069l-4.5763192-4.57631922c-.2038461-.20384606-.718603-.41894717-1.0001312-.41894717zm-1.5046024 4c.27614237 0 .5.21637201.5.49209595v6.14827645l1.7462789-1.77990922c.1933927-.1971171.5125222-.19455839.7001689-.0069117.1932998.19329992.1910058.50899492-.0027774.70277812l-2.59089271 2.5908927c-.19483374.1948337-.51177825.1937771-.70556873-.0000133l-2.59099079-2.5909908c-.19484111-.1948411-.19043735-.5151448-.00279066-.70279146.19329987-.19329987.50465175-.19237083.70018565.00692852l1.74638684 1.78001764v-6.14827695c0-.27177709.23193359-.49209595.5-.49209595z" fill-rule="evenodd"/></symbol><symbol id="icon-download" viewBox="0 0 16 16"><path d="m12.9975267 12.999368c.5467123 0 1.0024733.4478567 1.0024733 1.000316 0 .5563109-.4488226 1.000316-1.0024733 1.000316h-9.99505341c-.54671233 0-1.00247329-.4478567-1.00247329-1.000316 0-.5563109.44882258-1.000316 1.00247329-1.000316zm-4.9975267-11.999368c.55228475 0 1 .44497754 1 .99589209v6.80214418l2.4816273-2.48241149c.3928222-.39294628 1.0219732-.4006883 1.4030652-.01947579.3911302.39125371.3914806 1.02525073-.0001404 1.41699553l-4.17620792 4.17752758c-.39120769.3913313-1.02508144.3917306-1.41671995-.0000316l-4.17639421-4.17771394c-.39122513-.39134876-.39767006-1.01940351-.01657797-1.40061601.39113012-.39125372 1.02337105-.3931606 1.41951349.00310701l2.48183446 2.48261871v-6.80214418c0-.55001601.44386482-.99589209 1-.99589209z" fill-rule="evenodd"/></symbol><symbol id="icon-editors" viewBox="0 0 18 18"><path d="m8.72592184 2.54588137c-.48811714-.34391207-1.08343326-.54588137-1.72592184-.54588137-1.65685425 0-3 1.34314575-3 3 0 1.02947485.5215457 1.96853646 1.3698342 2.51900785l.6301658.40892721v1.02400182l-.79002171.32905522c-1.93395773.8055207-3.20997829 2.7024791-3.20997829 4.8180274v.9009805h-1v-.9009805c0-2.5479714 1.54557359-4.79153984 3.82548288-5.7411543-1.09870406-.71297106-1.82548288-1.95054399-1.82548288-3.3578652 0-2.209139 1.790861-4 4-4 1.09079823 0 2.07961816.43662103 2.80122451 1.1446278-.37707584.09278571-.7373238.22835063-1.07530267.40125357zm-2.72592184 14.45411863h-1v-.9009805c0-2.5479714 1.54557359-4.7915398 3.82548288-5.7411543-1.09870406-.71297106-1.82548288-1.95054399-1.82548288-3.3578652 0-2.209139 1.790861-4 4-4s4 1.790861 4 4c0 1.40732121-.7267788 2.64489414-1.8254829 3.3578652 2.2799093.9496145 3.8254829 3.1931829 3.8254829 5.7411543v.9009805h-1v-.9009805c0-2.1155483-1.2760206-4.0125067-3.2099783-4.8180274l-.7900217-.3290552v-1.02400184l.6301658-.40892721c.8482885-.55047139 1.3698342-1.489533 1.3698342-2.51900785 0-1.65685425-1.3431458-3-3-3-1.65685425 0-3 1.34314575-3 3 0 1.02947485.5215457 1.96853646 1.3698342 2.51900785l.6301658.40892721v1.02400184l-.79002171.3290552c-1.93395773.8055207-3.20997829 2.7024791-3.20997829 4.8180274z" fill-rule="evenodd"/></symbol><symbol id="icon-email" viewBox="0 0 18 18"><path d="m16.0049107 2c1.1018574 0 1.9950893.89706013 1.9950893 2.00585866v9.98828264c0 1.1078052-.8926228 2.0058587-1.9950893 2.0058587h-14.00982141c-1.10185739 0-1.99508929-.8970601-1.99508929-2.0058587v-9.98828264c0-1.10780515.8926228-2.00585866 1.99508929-2.00585866zm0 1h-14.00982141c-.54871518 0-.99508929.44887827-.99508929 1.00585866v9.98828264c0 .5572961.44630695 1.0058587.99508929 1.0058587h14.00982141c.5487152 0 .9950893-.4488783.9950893-1.0058587v-9.98828264c0-.55729607-.446307-1.00585866-.9950893-1.00585866zm-.0049107 2.55749512v1.44250488l-7 4-7-4v-1.44250488l7 4z" fill-rule="evenodd"/></symbol><symbol id="icon-error" viewBox="0 0 18 18"><path d="m9 0c4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9zm2.8630343 4.71100931-2.8630343 2.86303426-2.86303426-2.86303426c-.39658757-.39658757-1.03281091-.39438847-1.4265779-.00062147-.39651227.39651226-.39348876 1.03246767.00062147 1.4265779l2.86303426 2.86303426-2.86303426 2.8630343c-.39658757.3965875-.39438847 1.0328109-.00062147 1.4265779.39651226.3965122 1.03246767.3934887 1.4265779-.0006215l2.86303426-2.8630343 2.8630343 2.8630343c.3965875.3965876 1.0328109.3943885 1.4265779.0006215.3965122-.3965123.3934887-1.0324677-.0006215-1.4265779l-2.8630343-2.8630343 2.8630343-2.86303426c.3965876-.39658757.3943885-1.03281091.0006215-1.4265779-.3965123-.39651227-1.0324677-.39348876-1.4265779.00062147z" fill-rule="evenodd"/></symbol><symbol id="icon-ethics" viewBox="0 0 18 18"><path d="m6.76384967 1.41421356.83301651-.8330165c.77492941-.77492941 2.03133823-.77492941 2.80626762 0l.8330165.8330165c.3750728.37507276.8837806.58578644 1.4142136.58578644h1.3496361c1.1045695 0 2 .8954305 2 2v1.34963611c0 .53043298.2107137 1.03914081.5857864 1.41421356l.8330165.83301651c.7749295.77492941.7749295 2.03133823 0 2.80626762l-.8330165.8330165c-.3750727.3750728-.5857864.8837806-.5857864 1.4142136v1.3496361c0 1.1045695-.8954305 2-2 2h-1.3496361c-.530433 0-1.0391408.2107137-1.4142136.5857864l-.8330165.8330165c-.77492939.7749295-2.03133821.7749295-2.80626762 0l-.83301651-.8330165c-.37507275-.3750727-.88378058-.5857864-1.41421356-.5857864h-1.34963611c-1.1045695 0-2-.8954305-2-2v-1.3496361c0-.530433-.21071368-1.0391408-.58578644-1.4142136l-.8330165-.8330165c-.77492941-.77492939-.77492941-2.03133821 0-2.80626762l.8330165-.83301651c.37507276-.37507275.58578644-.88378058.58578644-1.41421356v-1.34963611c0-1.1045695.8954305-2 2-2h1.34963611c.53043298 0 1.03914081-.21071368 1.41421356-.58578644zm-1.41421356 1.58578644h-1.34963611c-.55228475 0-1 .44771525-1 1v1.34963611c0 .79564947-.31607052 1.55871121-.87867966 2.12132034l-.8330165.83301651c-.38440512.38440512-.38440512 1.00764896 0 1.39205408l.8330165.83301646c.56260914.5626092.87867966 1.3256709.87867966 2.1213204v1.3496361c0 .5522847.44771525 1 1 1h1.34963611c.79564947 0 1.55871121.3160705 2.12132034.8786797l.83301651.8330165c.38440512.3844051 1.00764896.3844051 1.39205408 0l.83301646-.8330165c.5626092-.5626092 1.3256709-.8786797 2.1213204-.8786797h1.3496361c.5522847 0 1-.4477153 1-1v-1.3496361c0-.7956495.3160705-1.5587112.8786797-2.1213204l.8330165-.83301646c.3844051-.38440512.3844051-1.00764896 0-1.39205408l-.8330165-.83301651c-.5626092-.56260913-.8786797-1.32567087-.8786797-2.12132034v-1.34963611c0-.55228475-.4477153-1-1-1h-1.3496361c-.7956495 0-1.5587112-.31607052-2.1213204-.87867966l-.83301646-.8330165c-.38440512-.38440512-1.00764896-.38440512-1.39205408 0l-.83301651.8330165c-.56260913.56260914-1.32567087.87867966-2.12132034.87867966zm3.58698944 11.4960218c-.02081224.002155-.04199226.0030286-.06345763.002542-.98766446-.0223875-1.93408568-.3063547-2.75885125-.8155622-.23496767-.1450683-.30784554-.4531483-.16277726-.688116.14506827-.2349677.45314827-.3078455.68811595-.1627773.67447084.4164161 1.44758575.6483839 2.25617384.6667123.01759529.0003988.03495764.0017019.05204365.0038639.01713363-.0017748.03452416-.0026845.05212715-.0026845 2.4852814 0 4.5-2.0147186 4.5-4.5 0-1.04888973-.3593547-2.04134635-1.0074477-2.83787157-.1742817-.21419731-.1419238-.5291218.0722736-.70340353.2141973-.17428173.5291218-.14192375.7034035.07227357.7919032.97327203 1.2317706 2.18808682 1.2317706 3.46900153 0 3.0375661-2.4624339 5.5-5.5 5.5-.02146768 0-.04261937-.0013529-.06337445-.0039782zm1.57975095-10.78419583c.2654788.07599731.419084.35281842.3430867.61829728-.0759973.26547885-.3528185.419084-.6182973.3430867-.37560116-.10752146-.76586237-.16587951-1.15568824-.17249193-2.5587807-.00064534-4.58547766 2.00216524-4.58547766 4.49928198 0 .62691557.12797645 1.23496.37274865 1.7964426.11035133.2531347-.0053975.5477984-.25853224.6581497-.25313473.1103514-.54779841-.0053975-.65814974-.2585322-.29947131-.6869568-.45606667-1.43097603-.45606667-2.1960601 0-3.05211432 2.47714695-5.50006595 5.59399617-5.49921198.48576182.00815502.96289603.0795037 1.42238033.21103795zm-1.9766658 6.41091303 2.69835-2.94655317c.1788432-.21040373.4943901-.23598862.7047939-.05714545.2104037.17884318.2359886.49439014.0571454.70479387l-3.01637681 3.34277395c-.18039088.1999106-.48669547.2210637-.69285412.0478478l-1.93095347-1.62240047c-.21213845-.17678204-.24080048-.49206439-.06401844-.70420284.17678204-.21213844.49206439-.24080048.70420284-.06401844z" fill-rule="evenodd"/></symbol><symbol id="icon-expand"><path d="M7.498 11.918a.997.997 0 0 0-.003-1.411.995.995 0 0 0-1.412-.003l-4.102 4.102v-3.51A1 1 0 0 0 .98 10.09.992.992 0 0 0 0 11.092V17c0 .554.448 1.002 1.002 1.002h5.907c.554 0 1.002-.45 1.002-1.003 0-.539-.45-.978-1.006-.978h-3.51zm3.005-5.835a.997.997 0 0 0 .003 1.412.995.995 0 0 0 1.411.003l4.103-4.103v3.51a1 1 0 0 0 1.001 1.006A.992.992 0 0 0 18 6.91V1.002A1 1 0 0 0 17 0h-5.907a1.003 1.003 0 0 0-1.002 1.003c0 .539.45.978 1.006.978h3.51z" fill-rule="evenodd"/></symbol><symbol id="icon-explore" viewBox="0 0 18 18"><path d="m9 17c4.418278 0 8-3.581722 8-8s-3.581722-8-8-8-8 3.581722-8 8 3.581722 8 8 8zm0 1c-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9 4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9zm0-2.5c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5c2.969509 0 5.400504-2.3575119 5.497023-5.31714844.0090007-.27599565.2400359-.49243782.5160315-.48343711.2759957.0090007.4924378.2400359.4834371.51603155-.114093 3.4985237-2.9869632 6.284554-6.4964916 6.284554zm-.29090657-12.99359748c.27587424-.01216621.50937715.20161139.52154336.47748563.01216621.27587423-.20161139.50937715-.47748563.52154336-2.93195733.12930094-5.25315116 2.54886451-5.25315116 5.49456849 0 .27614237-.22385763.5-.5.5s-.5-.22385763-.5-.5c0-3.48142406 2.74307146-6.34074398 6.20909343-6.49359748zm1.13784138 8.04763908-1.2004882-1.20048821c-.19526215-.19526215-.19526215-.51184463 0-.70710678s.51184463-.19526215.70710678 0l1.20048821 1.2004882 1.6006509-4.00162734-4.50670359 1.80268144-1.80268144 4.50670359zm4.10281269-6.50378907-2.6692597 6.67314927c-.1016411.2541026-.3029834.4554449-.557086.557086l-6.67314927 2.6692597 2.66925969-6.67314926c.10164107-.25410266.30298336-.45544495.55708602-.55708602z" fill-rule="evenodd"/></symbol><symbol id="icon-filter" viewBox="0 0 16 16"><path d="m14.9738641 0c.5667192 0 1.0261359.4477136 1.0261359 1 0 .24221858-.0902161.47620768-.2538899.65849851l-5.6938314 6.34147206v5.49997973c0 .3147562-.1520673.6111434-.4104543.7999971l-2.05227171 1.4999945c-.45337535.3313696-1.09655869.2418269-1.4365902-.1999993-.13321514-.1730955-.20522717-.3836284-.20522717-.5999978v-6.99997423l-5.69383133-6.34147206c-.3731872-.41563511-.32996891-1.0473954.09653074-1.41107611.18705584-.15950448.42716133-.2474224.67571519-.2474224zm-5.9218641 8.5h-2.105v6.491l.01238459.0070843.02053271.0015705.01955278-.0070558 2.0532976-1.4990996zm-8.02585008-7.5-.01564945.00240169 5.83249953 6.49759831h2.313l5.836-6.499z"/></symbol><symbol id="icon-home" viewBox="0 0 18 18"><path d="m9 5-6 6v5h4v-4h4v4h4v-5zm7 6.5857864v4.4142136c0 .5522847-.4477153 1-1 1h-5v-4h-2v4h-5c-.55228475 0-1-.4477153-1-1v-4.4142136c-.25592232 0-.51184464-.097631-.70710678-.2928932l-.58578644-.5857864c-.39052429-.3905243-.39052429-1.02368929 0-1.41421358l8.29289322-8.29289322 8.2928932 8.29289322c.3905243.39052429.3905243 1.02368928 0 1.41421358l-.5857864.5857864c-.1952622.1952622-.4511845.2928932-.7071068.2928932zm-7-9.17157284-7.58578644 7.58578644.58578644.5857864 7-6.99999996 7 6.99999996.5857864-.5857864z" fill-rule="evenodd"/></symbol><symbol id="icon-image" viewBox="0 0 18 18"><path d="m10.0046024 0c.5497429 0 1.3179837.32258606 1.707238.71184039l4.5763192 4.57631922c.3931386.39313859.7118404 1.16760135.7118404 1.71431368v8.98899651c0 1.1092806-.8945138 2.0085302-1.9940603 2.0085302h-12.01187942c-1.10128908 0-1.99406028-.8926228-1.99406028-1.9950893v-14.00982141c0-1.10185739.88743329-1.99508929 1.99961498-1.99508929zm-3.49645283 10.1752453-3.89407257 6.7495552c.11705545.048464.24538859.0751995.37998328.0751995h10.60290092l-2.4329715-4.2154691-1.57494129 2.7288098zm8.49779013 6.8247547c.5463747 0 .9940603-.4506622.9940603-1.0085302v-8.98899651c0-.28393444-.2150684-.80332809-.4189472-1.0072069l-4.5763192-4.57631922c-.2038461-.20384606-.718603-.41894717-1.0001312-.41894717h-7.00498742c-.55709576 0-.99961498.44271433-.99961498.99508929v13.98991071l4.50814957-7.81026689 3.08089884 5.33809539 1.57494129-2.7288097 3.5875735 6.2159812zm-3.0059397-11c1.1045695 0 2 .8954305 2 2s-.8954305 2-2 2-2-.8954305-2-2 .8954305-2 2-2zm0 1c-.5522847 0-1 .44771525-1 1s.4477153 1 1 1 1-.44771525 1-1-.4477153-1-1-1z" fill-rule="evenodd"/></symbol><symbol id="icon-info" viewBox="0 0 18 18"><path d="m9 0c4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9zm0 7h-1.5l-.11662113.00672773c-.49733868.05776511-.88337887.48043643-.88337887.99327227 0 .47338693.32893365.86994729.77070917.97358929l.1126697.01968298.11662113.00672773h.5v3h-.5l-.11662113.0067277c-.42082504.0488782-.76196299.3590206-.85696816.7639815l-.01968298.1126697-.00672773.1166211.00672773.1166211c.04887817.4208251.35902055.761963.76398144.8569682l.1126697.019683.11662113.0067277h3l.1166211-.0067277c.4973387-.0577651.8833789-.4804365.8833789-.9932723 0-.4733869-.3289337-.8699473-.7707092-.9735893l-.1126697-.019683-.1166211-.0067277h-.5v-4l-.00672773-.11662113c-.04887817-.42082504-.35902055-.76196299-.76398144-.85696816l-.1126697-.01968298zm0-3.25c-.69035594 0-1.25.55964406-1.25 1.25s.55964406 1.25 1.25 1.25 1.25-.55964406 1.25-1.25-.55964406-1.25-1.25-1.25z" fill-rule="evenodd"/></symbol><symbol id="icon-institution" viewBox="0 0 18 18"><path d="m7 16.9998189v-2.0003623h4v2.0003623h2v-3.0005434h-8v3.0005434zm-3-10.00181122h-1.52632364c-.27614237 0-.5-.22389817-.5-.50009056 0-.13995446.05863589-.27350497.16166338-.36820841l1.23156713-1.13206327h-2.36690687v12.00217346h3v-2.0003623h-3v-1.0001811h3v-1.0001811h1v-4.00072448h-1zm10 0v2.00036224h-1v4.00072448h1v1.0001811h3v1.0001811h-3v2.0003623h3v-12.00217346h-2.3695309l1.2315671 1.13206327c.2033191.186892.2166633.50325042.0298051.70660631-.0946863.10304615-.2282126.16169266-.3681417.16169266zm3-3.00054336c.5522847 0 1 .44779634 1 1.00018112v13.00235456h-18v-13.00235456c0-.55238478.44771525-1.00018112 1-1.00018112h3.45499992l4.20535144-3.86558216c.19129876-.17584288.48537447-.17584288.67667324 0l4.2053514 3.86558216zm-4 3.00054336h-8v1.00018112h8zm-2 6.00108672h1v-4.00072448h-1zm-1 0v-4.00072448h-2v4.00072448zm-3 0v-4.00072448h-1v4.00072448zm8-4.00072448c.5522847 0 1 .44779634 1 1.00018112v2.00036226h-2v-2.00036226c0-.55238478.4477153-1.00018112 1-1.00018112zm-12 0c.55228475 0 1 .44779634 1 1.00018112v2.00036226h-2v-2.00036226c0-.55238478.44771525-1.00018112 1-1.00018112zm5.99868798-7.81907007-5.24205601 4.81852671h10.48411203zm.00131202 3.81834559c-.55228475 0-1-.44779634-1-1.00018112s.44771525-1.00018112 1-1.00018112 1 .44779634 1 1.00018112-.44771525 1.00018112-1 1.00018112zm-1 11.00199236v1.0001811h2v-1.0001811z" fill-rule="evenodd"/></symbol><symbol id="icon-location" viewBox="0 0 18 18"><path d="m9.39521328 16.2688008c.79596342-.7770119 1.59208152-1.6299956 2.33285652-2.5295081 1.4020032-1.7024324 2.4323601-3.3624519 2.9354918-4.871847.2228715-.66861448.3364384-1.29323246.3364384-1.8674457 0-3.3137085-2.6862915-6-6-6-3.36356866 0-6 2.60156856-6 6 0 .57421324.11356691 1.19883122.3364384 1.8674457.50313169 1.5093951 1.53348863 3.1694146 2.93549184 4.871847.74077492.8995125 1.53689309 1.7524962 2.33285648 2.5295081.13694479.1336842.26895677.2602648.39521328.3793207.12625651-.1190559.25826849-.2456365.39521328-.3793207zm-.39521328 1.7311992s-7-6-7-11c0-4 3.13400675-7 7-7 3.8659932 0 7 3.13400675 7 7 0 5-7 11-7 11zm0-8c-1.65685425 0-3-1.34314575-3-3s1.34314575-3 3-3c1.6568542 0 3 1.34314575 3 3s-1.3431458 3-3 3zm0-1c1.1045695 0 2-.8954305 2-2s-.8954305-2-2-2-2 .8954305-2 2 .8954305 2 2 2z" fill-rule="evenodd"/></symbol><symbol id="icon-minus" viewBox="0 0 16 16"><path d="m2.00087166 7h11.99825664c.5527662 0 1.0008717.44386482 1.0008717 1 0 .55228475-.4446309 1-1.0008717 1h-11.99825664c-.55276616 0-1.00087166-.44386482-1.00087166-1 0-.55228475.44463086-1 1.00087166-1z" fill-rule="evenodd"/></symbol><symbol id="icon-newsletter" viewBox="0 0 18 18"><path d="m9 11.8482489 2-1.1428571v-1.7053918h-4v1.7053918zm-3-1.7142857v-2.1339632h6v2.1339632l3-1.71428574v-6.41967746h-12v6.41967746zm10-5.3839632 1.5299989.95624934c.2923814.18273835.4700011.50320827.4700011.8479983v8.44575236c0 1.1045695-.8954305 2-2 2h-14c-1.1045695 0-2-.8954305-2-2v-8.44575236c0-.34479003.1776197-.66525995.47000106-.8479983l1.52999894-.95624934v-2.75c0-.55228475.44771525-1 1-1h12c.5522847 0 1 .44771525 1 1zm0 1.17924764v3.07075236l-7 4-7-4v-3.07075236l-1 .625v8.44575236c0 .5522847.44771525 1 1 1h14c.5522847 0 1-.4477153 1-1v-8.44575236zm-10-1.92924764h6v1h-6zm-1 2h8v1h-8z" fill-rule="evenodd"/></symbol><symbol id="icon-orcid" viewBox="0 0 18 18"><path d="m9 1c4.418278 0 8 3.581722 8 8s-3.581722 8-8 8-8-3.581722-8-8 3.581722-8 8-8zm-2.90107518 5.2732337h-1.41865256v7.1712107h1.41865256zm4.55867178.02508949h-2.99247027v7.14612121h2.91062487c.7673039 0 1.4476365-.1483432 2.0410182-.445034s1.0511995-.7152915 1.3734671-1.2558144c.3222677-.540523.4833991-1.1603247.4833991-1.85942385 0-.68545815-.1602789-1.30270225-.4808414-1.85175082-.3205625-.54904856-.7707074-.97532211-1.3504481-1.27883343-.5797408-.30351132-1.2413173-.45526471-1.9847495-.45526471zm-.1892674 1.07933542c.7877654 0 1.4143875.22336734 1.8798852.67010873.4654977.44674138.698243 1.05546001.698243 1.82617415 0 .74343221-.2310402 1.34447791-.6931277 1.80315511-.4620874.4586773-1.0750688.6880124-1.8389625.6880124h-1.46810075v-4.98745039zm-5.08652545-3.71099194c-.21825533 0-.410525.08444276-.57681478.25333081-.16628977.16888806-.24943341.36245684-.24943341.58071218 0 .22345188.08314364.41961891.24943341.58850696.16628978.16888806.35855945.25333082.57681478.25333082.233845 0 .43390938-.08314364.60019916-.24943342.16628978-.16628977.24943342-.36375592.24943342-.59240436 0-.233845-.08314364-.43131115-.24943342-.59240437s-.36635416-.24163862-.60019916-.24163862z" fill-rule="evenodd"/></symbol><symbol id="icon-plus" viewBox="0 0 16 16"><path d="m2.00087166 7h4.99912834v-4.99912834c0-.55276616.44386482-1.00087166 1-1.00087166.55228475 0 1 .44463086 1 1.00087166v4.99912834h4.9991283c.5527662 0 1.0008717.44386482 1.0008717 1 0 .55228475-.4446309 1-1.0008717 1h-4.9991283v4.9991283c0 .5527662-.44386482 1.0008717-1 1.0008717-.55228475 0-1-.4446309-1-1.0008717v-4.9991283h-4.99912834c-.55276616 0-1.00087166-.44386482-1.00087166-1 0-.55228475.44463086-1 1.00087166-1z" fill-rule="evenodd"/></symbol><symbol id="icon-print" viewBox="0 0 18 18"><path d="m16.0049107 5h-14.00982141c-.54941618 0-.99508929.4467783-.99508929.99961498v6.00077002c0 .5570958.44271433.999615.99508929.999615h1.00491071v-3h12v3h1.0049107c.5494162 0 .9950893-.4467783.9950893-.999615v-6.00077002c0-.55709576-.4427143-.99961498-.9950893-.99961498zm-2.0049107-1v-2.00208688c0-.54777062-.4519464-.99791312-1.0085302-.99791312h-7.9829396c-.55661731 0-1.0085302.44910695-1.0085302.99791312v2.00208688zm1 10v2.0018986c0 1.103521-.9019504 1.9981014-2.0085302 1.9981014h-7.9829396c-1.1092806 0-2.0085302-.8867064-2.0085302-1.9981014v-2.0018986h-1.00491071c-1.10185739 0-1.99508929-.8874333-1.99508929-1.999615v-6.00077002c0-1.10435686.8926228-1.99961498 1.99508929-1.99961498h1.00491071v-2.00208688c0-1.10341695.90195036-1.99791312 2.0085302-1.99791312h7.9829396c1.1092806 0 2.0085302.89826062 2.0085302 1.99791312v2.00208688h1.0049107c1.1018574 0 1.9950893.88743329 1.9950893 1.99961498v6.00077002c0 1.1043569-.8926228 1.999615-1.9950893 1.999615zm-1-3h-10v5.0018986c0 .5546075.44702548.9981014 1.0085302.9981014h7.9829396c.5565964 0 1.0085302-.4491701 1.0085302-.9981014zm-9 1h8v1h-8zm0 2h5v1h-5zm9-5c-.5522847 0-1-.44771525-1-1s.4477153-1 1-1 1 .44771525 1 1-.4477153 1-1 1z" fill-rule="evenodd"/></symbol><symbol id="icon-search" viewBox="0 0 22 22"><path d="M21.697 20.261a1.028 1.028 0 01.01 1.448 1.034 1.034 0 01-1.448-.01l-4.267-4.267A9.812 9.811 0 010 9.812a9.812 9.811 0 1117.43 6.182zM9.812 18.222A8.41 8.41 0 109.81 1.403a8.41 8.41 0 000 16.82z" fill-rule="evenodd"/></symbol><symbol id="icon-social-facebook" viewBox="0 0 24 24"><path d="m6.00368507 20c-1.10660471 0-2.00368507-.8945138-2.00368507-1.9940603v-12.01187942c0-1.10128908.89451376-1.99406028 1.99406028-1.99406028h12.01187942c1.1012891 0 1.9940603.89451376 1.9940603 1.99406028v12.01187942c0 1.1012891-.88679 1.9940603-2.0032184 1.9940603h-2.9570132v-6.1960818h2.0797387l.3114113-2.414723h-2.39115v-1.54164807c0-.69911803.1941355-1.1755439 1.1966615-1.1755439l1.2786739-.00055875v-2.15974763l-.2339477-.02492088c-.3441234-.03134957-.9500153-.07025255-1.6293054-.07025255-1.8435726 0-3.1057323 1.12531866-3.1057323 3.19187953v1.78079225h-2.0850778v2.414723h2.0850778v6.1960818z" fill-rule="evenodd"/></symbol><symbol id="icon-social-twitter" viewBox="0 0 24 24"><path d="m18.8767135 6.87445248c.7638174-.46908424 1.351611-1.21167363 1.6250764-2.09636345-.7135248.43394112-1.50406.74870123-2.3464594.91677702-.6695189-.73342162-1.6297913-1.19486605-2.6922204-1.19486605-2.0399895 0-3.6933555 1.69603749-3.6933555 3.78628909 0 .29642457.0314329.58673729.0942985.8617704-3.06469922-.15890802-5.78835241-1.66547825-7.60988389-3.9574208-.3174714.56076194-.49978171 1.21167363-.49978171 1.90536824 0 1.31404706.65223085 2.47224203 1.64236444 3.15218497-.60350999-.0198635-1.17401554-.1925232-1.67222562-.47366811v.04583885c0 1.83355406 1.27302891 3.36609966 2.96411421 3.71294696-.31118484.0886217-.63651445.1329326-.97441718.1329326-.2357461 0-.47149219-.0229194-.69466516-.0672303.47149219 1.5065703 1.83253297 2.6036468 3.44975116 2.632678-1.2651707 1.0160946-2.85724264 1.6196394-4.5891906 1.6196394-.29861172 0-.59093688-.0152796-.88011875-.0504227 1.63450624 1.0726291 3.57548241 1.6990934 5.66104951 1.6990934 6.79263079 0 10.50641749-5.7711113 10.50641749-10.7751859l-.0094298-.48894775c.7229547-.53478659 1.3516109-1.20250585 1.8419628-1.96190282-.6632323.30100846-1.3751855.50422736-2.1217148.59590507z" fill-rule="evenodd"/></symbol><symbol id="icon-social-youtube" viewBox="0 0 24 24"><path d="m10.1415 14.3973208-.0005625-5.19318431 4.863375 2.60554491zm9.963-7.92753362c-.6845625-.73643756-1.4518125-.73990314-1.803375-.7826454-2.518875-.18714178-6.2971875-.18714178-6.2971875-.18714178-.007875 0-3.7861875 0-6.3050625.18714178-.352125.04274226-1.1188125.04620784-1.8039375.7826454-.5394375.56084773-.7149375 1.8344515-.7149375 1.8344515s-.18 1.49597903-.18 2.99138042v1.4024082c0 1.495979.18 2.9913804.18 2.9913804s.1755 1.2736038.7149375 1.8344515c.685125.7364376 1.5845625.7133337 1.9850625.7901542 1.44.1420891 6.12.1859866 6.12.1859866s3.78225-.005776 6.301125-.1929178c.3515625-.0433198 1.1188125-.0467854 1.803375-.783223.5394375-.5608477.7155-1.8344515.7155-1.8344515s.18-1.4954014.18-2.9913804v-1.4024082c0-1.49540139-.18-2.99138042-.18-2.99138042s-.1760625-1.27360377-.7155-1.8344515z" fill-rule="evenodd"/></symbol><symbol id="icon-subject-medicine" viewBox="0 0 18 18"><path d="m12.5 8h-6.5c-1.65685425 0-3 1.34314575-3 3v1c0 1.6568542 1.34314575 3 3 3h1v-2h-.5c-.82842712 0-1.5-.6715729-1.5-1.5s.67157288-1.5 1.5-1.5h1.5 2 1 2c1.6568542 0 3-1.34314575 3-3v-1c0-1.65685425-1.3431458-3-3-3h-2v2h1.5c.8284271 0 1.5.67157288 1.5 1.5s-.6715729 1.5-1.5 1.5zm-5.5-1v-1h-3.5c-1.38071187 0-2.5-1.11928813-2.5-2.5s1.11928813-2.5 2.5-2.5h1.02786405c.46573528 0 .92507448.10843528 1.34164078.31671843l1.13382424.56691212c.06026365-1.05041141.93116291-1.88363055 1.99667093-1.88363055 1.1045695 0 2 .8954305 2 2h2c2.209139 0 4 1.790861 4 4v1c0 2.209139-1.790861 4-4 4h-2v1h2c1.1045695 0 2 .8954305 2 2s-.8954305 2-2 2h-2c0 1.1045695-.8954305 2-2 2s-2-.8954305-2-2h-1c-2.209139 0-4-1.790861-4-4v-1c0-2.209139 1.790861-4 4-4zm0-2v-2.05652691c-.14564246-.03538148-.28733393-.08714006-.42229124-.15461871l-1.15541752-.57770876c-.27771087-.13885544-.583937-.21114562-.89442719-.21114562h-1.02786405c-.82842712 0-1.5.67157288-1.5 1.5s.67157288 1.5 1.5 1.5zm4 1v1h1.5c.2761424 0 .5-.22385763.5-.5s-.2238576-.5-.5-.5zm-1 1v-5c0-.55228475-.44771525-1-1-1s-1 .44771525-1 1v5zm-2 4v5c0 .5522847.44771525 1 1 1s1-.4477153 1-1v-5zm3 2v2h2c.5522847 0 1-.4477153 1-1s-.4477153-1-1-1zm-4-1v-1h-.5c-.27614237 0-.5.2238576-.5.5s.22385763.5.5.5zm-3.5-9h1c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-1c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5z" fill-rule="evenodd"/></symbol><symbol id="icon-success" viewBox="0 0 18 18"><path d="m9 0c4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9zm3.4860198 4.98163161-4.71802968 5.50657859-2.62834168-2.02300024c-.42862421-.36730544-1.06564993-.30775346-1.42283677.13301307-.35718685.44076653-.29927542 1.0958383.12934879 1.46314377l3.40735508 2.7323063c.42215801.3385221 1.03700951.2798252 1.38749189-.1324571l5.38450527-6.33394549c.3613513-.43716226.3096573-1.09278382-.115462-1.46437175-.4251192-.37158792-1.0626796-.31842941-1.4240309.11873285z" fill-rule="evenodd"/></symbol><symbol id="icon-table" viewBox="0 0 18 18"><path d="m16.0049107 2c1.1018574 0 1.9950893.89706013 1.9950893 2.00585866v9.98828264c0 1.1078052-.8926228 2.0058587-1.9950893 2.0058587l-4.0059107-.001.001.001h-1l-.001-.001h-5l.001.001h-1l-.001-.001-3.00391071.001c-1.10185739 0-1.99508929-.8970601-1.99508929-2.0058587v-9.98828264c0-1.10780515.8926228-2.00585866 1.99508929-2.00585866zm-11.0059107 5h-3.999v6.9941413c0 .5572961.44630695 1.0058587.99508929 1.0058587h3.00391071zm6 0h-5v8h5zm5.0059107-4h-4.0059107v3h5.001v1h-5.001v7.999l4.0059107.001c.5487152 0 .9950893-.4488783.9950893-1.0058587v-9.98828264c0-.55729607-.446307-1.00585866-.9950893-1.00585866zm-12.5049107 9c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-1c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5zm12 0c.2761424 0 .5.2238576.5.5s-.2238576.5-.5.5h-2c-.2761424 0-.5-.2238576-.5-.5s.2238576-.5.5-.5zm-6 0c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-2c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5zm-6-2c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-1c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5zm12 0c.2761424 0 .5.2238576.5.5s-.2238576.5-.5.5h-2c-.2761424 0-.5-.2238576-.5-.5s.2238576-.5.5-.5zm-6 0c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-2c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5zm-6-2c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-1c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm12 0c.2761424 0 .5.22385763.5.5s-.2238576.5-.5.5h-2c-.2761424 0-.5-.22385763-.5-.5s.2238576-.5.5-.5zm-6 0c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-2c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm1.499-5h-5v3h5zm-6 0h-3.00391071c-.54871518 0-.99508929.44887827-.99508929 1.00585866v1.99414134h3.999z" fill-rule="evenodd"/></symbol><symbol id="icon-tick-circle" viewBox="0 0 24 24"><path d="m12 2c5.5228475 0 10 4.4771525 10 10s-4.4771525 10-10 10-10-4.4771525-10-10 4.4771525-10 10-10zm0 1c-4.97056275 0-9 4.02943725-9 9 0 4.9705627 4.02943725 9 9 9 4.9705627 0 9-4.0294373 9-9 0-4.97056275-4.0294373-9-9-9zm4.2199868 5.36606669c.3613514-.43716226.9989118-.49032077 1.424031-.11873285s.4768133 1.02720949.115462 1.46437175l-6.093335 6.94397871c-.3622945.4128716-.9897871.4562317-1.4054264.0971157l-3.89719065-3.3672071c-.42862421-.3673054-.48653564-1.0223772-.1293488-1.4631437s.99421256-.5003185 1.42283677-.1330131l3.11097438 2.6987741z" fill-rule="evenodd"/></symbol><symbol id="icon-tick" viewBox="0 0 16 16"><path d="m6.76799012 9.21106946-3.1109744-2.58349728c-.42862421-.35161617-1.06564993-.29460792-1.42283677.12733148s-.29927541 1.04903009.1293488 1.40064626l3.91576307 3.23873978c.41034319.3393961 1.01467563.2976897 1.37450571-.0948578l6.10568327-6.660841c.3613513-.41848908.3096572-1.04610608-.115462-1.4018218-.4251192-.35571573-1.0626796-.30482786-1.424031.11366122z" fill-rule="evenodd"/></symbol><symbol id="icon-update" viewBox="0 0 18 18"><path d="m1 13v1c0 .5522847.44771525 1 1 1h14c.5522847 0 1-.4477153 1-1v-1h-1v-10h-14v10zm16-1h1v2c0 1.1045695-.8954305 2-2 2h-14c-1.1045695 0-2-.8954305-2-2v-2h1v-9c0-.55228475.44771525-1 1-1h14c.5522847 0 1 .44771525 1 1zm-1 0v1h-4.5857864l-1 1h-2.82842716l-1-1h-4.58578644v-1h5l1 1h2l1-1zm-13-8h12v7h-12zm1 1v5h10v-5zm1 1h4v1h-4zm0 2h4v1h-4z" fill-rule="evenodd"/></symbol><symbol id="icon-upload" viewBox="0 0 18 18"><path d="m10.0046024 0c.5497429 0 1.3179837.32258606 1.707238.71184039l4.5763192 4.57631922c.3931386.39313859.7118404 1.16760135.7118404 1.71431368v8.98899651c0 1.1092806-.8945138 2.0085302-1.9940603 2.0085302h-12.01187942c-1.10128908 0-1.99406028-.8926228-1.99406028-1.9950893v-14.00982141c0-1.10185739.88743329-1.99508929 1.99961498-1.99508929zm0 1h-7.00498742c-.55709576 0-.99961498.44271433-.99961498.99508929v14.00982141c0 .5500396.44491393.9950893.99406028.9950893h12.01187942c.5463747 0 .9940603-.4506622.9940603-1.0085302v-8.98899651c0-.28393444-.2150684-.80332809-.4189472-1.0072069l-4.5763192-4.57631922c-.2038461-.20384606-.718603-.41894717-1.0001312-.41894717zm-1.85576936 4.14572769c.19483374-.19483375.51177826-.19377714.70556874.00001334l2.59099082 2.59099079c.1948411.19484112.1904373.51514474.0027906.70279143-.1932998.19329987-.5046517.19237083-.7001856-.00692852l-1.74638687-1.7800176v6.14827687c0 .2717771-.23193359.492096-.5.492096-.27614237 0-.5-.216372-.5-.492096v-6.14827641l-1.74627892 1.77990922c-.1933927.1971171-.51252214.19455839-.70016883.0069117-.19329987-.19329988-.19100584-.50899493.00277731-.70277808z" fill-rule="evenodd"/></symbol><symbol id="icon-video" viewBox="0 0 18 18"><path d="m16.0049107 2c1.1018574 0 1.9950893.89706013 1.9950893 2.00585866v9.98828264c0 1.1078052-.8926228 2.0058587-1.9950893 2.0058587h-14.00982141c-1.10185739 0-1.99508929-.8970601-1.99508929-2.0058587v-9.98828264c0-1.10780515.8926228-2.00585866 1.99508929-2.00585866zm0 1h-14.00982141c-.54871518 0-.99508929.44887827-.99508929 1.00585866v9.98828264c0 .5572961.44630695 1.0058587.99508929 1.0058587h14.00982141c.5487152 0 .9950893-.4488783.9950893-1.0058587v-9.98828264c0-.55729607-.446307-1.00585866-.9950893-1.00585866zm-8.30912922 2.24944486 4.60460462 2.73982242c.9365543.55726659.9290753 1.46522435 0 2.01804082l-4.60460462 2.7398224c-.93655425.5572666-1.69578148.1645632-1.69578148-.8937585v-5.71016863c0-1.05087579.76670616-1.446575 1.69578148-.89375851zm-.67492769.96085624v5.5750128c0 .2995102-.10753745.2442517.16578928.0847713l4.58452283-2.67497259c.3050619-.17799716.3051624-.21655446 0-.39461026l-4.58452283-2.67497264c-.26630747-.15538481-.16578928-.20699944-.16578928.08477139z" fill-rule="evenodd"/></symbol><symbol id="icon-warning" viewBox="0 0 18 18"><path d="m9 11.75c.69035594 0 1.25.5596441 1.25 1.25s-.55964406 1.25-1.25 1.25-1.25-.5596441-1.25-1.25.55964406-1.25 1.25-1.25zm.41320045-7.75c.55228475 0 1.00000005.44771525 1.00000005 1l-.0034543.08304548-.3333333 4c-.043191.51829212-.47645714.91695452-.99654578.91695452h-.15973424c-.52008864 0-.95335475-.3986624-.99654576-.91695452l-.33333333-4c-.04586475-.55037702.36312325-1.03372649.91350028-1.07959124l.04148683-.00259031zm-.41320045 14c-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9 4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-left-bullet" viewBox="0 0 8 16"><path d="M3 8l5 5v3L0 8l8-8v3L3 8z"/></symbol><symbol id="icon-chevron-down" viewBox="0 0 16 16"><path d="m5.58578644 3-3.29289322-3.29289322c-.39052429-.39052429-.39052429-1.02368927 0-1.41421356s1.02368927-.39052429 1.41421356 0l4 4c.39052429.39052429.39052429 1.02368927 0 1.41421356l-4 4c-.39052429.39052429-1.02368927.39052429-1.41421356 0s-.39052429-1.02368927 0-1.41421356z" fill-rule="evenodd" transform="matrix(0 1 -1 0 11 3)"/></symbol><symbol id="icon-download-rounded"><path d="M0 13c0-.556.449-1 1.002-1h9.996a.999.999 0 110 2H1.002A1.006 1.006 0 010 13zM7 1v6.8l2.482-2.482c.392-.392 1.022-.4 1.403-.02a1.001 1.001 0 010 1.417l-4.177 4.177a1.001 1.001 0 01-1.416 0L1.115 6.715a.991.991 0 01-.016-1.4 1 1 0 011.42.003L5 7.8V1c0-.55.444-.996 1-.996.552 0 1 .445 1 .996z"/></symbol><symbol id="icon-ext-link" viewBox="0 0 16 16"><path d="M12.9 16H3.1C1.4 16 0 14.6 0 12.9V3.2C0 1.4 1.4 0 3.1 0h3.7v1H3.1C2 1 1 2 1 3.2v9.7C1 14 2 15 3.1 15h9.7c1.2 0 2.1-1 2.1-2.1V8.7h1v4.2c.1 1.7-1.3 3.1-3 3.1z"/><path d="M12.8 2.5l.7.7-9 8.9-.7-.7 9-8.9z"/><path d="M9.7 0L16 6.2V0z"/></symbol><symbol id="icon-remove" viewBox="-296 388 18 18"><path d="M-291.7 396.1h9v2h-9z"/><path d="M-287 405.5c-4.7 0-8.5-3.8-8.5-8.5s3.8-8.5 8.5-8.5 8.5 3.8 8.5 8.5-3.8 8.5-8.5 8.5zm0-16c-4.1 0-7.5 3.4-7.5 7.5s3.4 7.5 7.5 7.5 7.5-3.4 7.5-7.5-3.4-7.5-7.5-7.5z"/></symbol><symbol id="icon-rss" viewBox="0 0 18 18"><path d="m.97480857 6.01583891.11675372.00378391c5.75903295.51984988 10.34261021 5.10537458 10.85988231 10.86480098.0494035.5500707-.3564674 1.0360406-.906538 1.0854441-.5500707.0494036-1.0360406-.3564673-1.08544412-.906538-.43079083-4.7965248-4.25151132-8.61886853-9.04770289-9.05180573-.55004837-.04965115-.95570047-.53580366-.90604933-1.08585203.04610464-.5107592.46858035-.89701345.96909831-.90983323zm1.52519143 6.95474179c1.38071187 0 2.5 1.1192881 2.5 2.5s-1.11928813 2.5-2.5 2.5-2.5-1.1192881-2.5-2.5 1.11928813-2.5 2.5-2.5zm-1.43253846-12.96884168c9.09581416.53242539 16.37540296 7.8163886 16.90205336 16.91294558.0319214.5513615-.389168 1.0242056-.9405294 1.056127-.5513615.0319214-1.0242057-.389168-1.0561271-.9405294-.4679958-8.08344784-6.93949306-14.55883389-15.02226722-15.03196077-.55134101-.03227286-.97212889-.50538538-.93985602-1.05672639.03227286-.551341.50538538-.97212888 1.05672638-.93985602z" fill-rule="evenodd"/></symbol><symbol id="icon-springer-arrow-left"><path d="M15 7a1 1 0 000-2H3.385l2.482-2.482a.994.994 0 00.02-1.403 1.001 1.001 0 00-1.417 0L.294 5.292a1.001 1.001 0 000 1.416l4.176 4.177a.991.991 0 001.4.016 1 1 0 00-.003-1.42L3.385 7H15z"/></symbol><symbol id="icon-springer-arrow-right"><path d="M1 7a1 1 0 010-2h11.615l-2.482-2.482a.994.994 0 01-.02-1.403 1.001 1.001 0 011.417 0l4.176 4.177a1.001 1.001 0 010 1.416l-4.176 4.177a.991.991 0 01-1.4.016 1 1 0 01.003-1.42L12.615 7H1z"/></symbol><symbol id="icon-springer-collections" viewBox="3 3 32 32"><path fill-rule="evenodd" d="M25.583333,30.1249997 L25.583333,7.1207574 C25.583333,7.10772495 25.579812,7.10416665 25.5859851,7.10416665 L6.10400517,7.10571021 L6.10400517,30.1355179 C6.10400517,31.1064087 6.89406744,31.8958329 7.86448169,31.8958329 L26.057145,31.8958329 C25.7558021,31.374901 25.583333,30.7700915 25.583333,30.1249997 Z M4.33333333,30.1355179 L4.33333333,7.10571021 C4.33333333,6.12070047 5.12497502,5.33333333 6.10151452,5.33333333 L25.5859851,5.33333333 C26.5617372,5.33333333 27.3541664,6.13359035 27.3541664,7.1207574 L27.3541664,12.4166666 L32.6666663,12.4166666 L32.6666663,30.1098941 C32.6666663,32.0694626 31.0857174,33.6666663 29.1355179,33.6666663 L7.86448169,33.6666663 C5.91736809,33.6666663 4.33333333,32.0857174 4.33333333,30.1355179 Z M27.3541664,14.1874999 L27.3541664,30.1249997 C27.3541664,31.1030039 28.1469954,31.8958329 29.1249997,31.8958329 C30.1030039,31.8958329 30.8958329,31.1030039 30.8958329,30.1249997 L30.8958329,14.1874999 L27.3541664,14.1874999 Z M9.64583326,10.6458333 L22.0416665,10.6458333 L22.0416665,17.7291665 L9.64583326,17.7291665 L9.64583326,10.6458333 Z M11.4166666,12.4166666 L11.4166666,15.9583331 L20.2708331,15.9583331 L20.2708331,12.4166666 L11.4166666,12.4166666 Z M9.64583326,19.4999998 L22.0416665,19.4999998 L22.0416665,21.2708331 L9.64583326,21.2708331 L9.64583326,19.4999998 Z M9.64583326,23.0416665 L22.0416665,23.0416665 L22.0416665,24.8124997 L9.64583326,24.8124997 L9.64583326,23.0416665 Z M9.64583326,26.583333 L22.0416665,26.583333 L22.0416665,28.3541664 L9.64583326,28.3541664 L9.64583326,26.583333 Z"/></symbol><symbol id="icon-springer-download" viewBox="-301 390 9 14"><path d="M-301 395.6l4.5 5.1 4.5-5.1h-3V390h-3v5.6h-3zm0 6.5h9v1.9h-9z"/></symbol><symbol id="icon-springer-info" viewBox="0 0 24 24"><g id="V&I" stroke="none" stroke-width="1" fill-rule="evenodd"><g id="info" fill-rule="nonzero"><path d="M12,0 C18.627417,0 24,5.372583 24,12 C24,18.627417 18.627417,24 12,24 C5.372583,24 0,18.627417 0,12 C0,5.372583 5.372583,0 12,0 Z M12.5540543,9.1 L11.5540543,9.1 C11.0017696,9.1 10.5540543,9.54771525 10.5540543,10.1 L10.5540543,10.1 L10.5540543,18.1 C10.5540543,18.6522847 11.0017696,19.1 11.5540543,19.1 L11.5540543,19.1 L12.5540543,19.1 C13.1063391,19.1 13.5540543,18.6522847 13.5540543,18.1 L13.5540543,18.1 L13.5540543,10.1 C13.5540543,9.54771525 13.1063391,9.1 12.5540543,9.1 L12.5540543,9.1 Z M12,5 C11.5356863,5 11.1529412,5.14640523 10.8517647,5.43921569 C10.5505882,5.73202614 10.4,6.11546841 10.4,6.58954248 C10.4,7.06361656 10.5505882,7.45054466 10.8517647,7.7503268 C11.1529412,8.05010893 11.5356863,8.2 12,8.2 C12.4768627,8.2 12.8627451,8.05010893 13.1576471,7.7503268 C13.452549,7.45054466 13.6,7.06361656 13.6,6.58954248 C13.6,6.11546841 13.452549,5.73202614 13.1576471,5.43921569 C12.8627451,5.14640523 12.4768627,5 12,5 Z" id="Combined-Shape"/></g></g></symbol><symbol id="icon-springer-tick-circle" viewBox="0 0 24 24"><g id="Page-1" stroke="none" stroke-width="1" fill-rule="evenodd"><g id="springer-tick-circle" fill-rule="nonzero"><path d="M12,24 C5.372583,24 0,18.627417 0,12 C0,5.372583 5.372583,0 12,0 C18.627417,0 24,5.372583 24,12 C24,18.627417 18.627417,24 12,24 Z M7.657,10.79 C7.45285634,10.6137568 7.18569967,10.5283283 6.91717333,10.5534259 C6.648647,10.5785236 6.40194824,10.7119794 6.234,10.923 C5.87705269,11.3666969 5.93445559,12.0131419 6.364,12.387 L10.261,15.754 C10.6765468,16.112859 11.3037113,16.0695601 11.666,15.657 L17.759,8.713 C18.120307,8.27302248 18.0695334,7.62621189 17.644,7.248 C17.4414817,7.06995024 17.1751516,6.9821166 16.9064461,7.00476032 C16.6377406,7.02740404 16.3898655,7.15856958 16.22,7.368 L10.768,13.489 L7.657,10.79 Z" id="path-1"/></g></g></symbol><symbol id="icon-updates" viewBox="0 0 18 18"><g fill-rule="nonzero"><path d="M16.98 3.484h-.48c-2.52-.058-5.04 1.161-7.44 2.903-2.46-1.8-4.74-2.903-8.04-2.903-.3 0-.54.29-.54.58v9.813c0 .29.24.523.54.581 2.76.348 4.86 1.045 7.62 2.903.24.116.54.116.72 0 2.76-1.858 4.86-2.555 7.62-2.903.3-.058.54-.29.54-.58V4.064c0-.29-.24-.523-.54-.581zm-15.3 1.22c2.34 0 4.86 1.509 6.72 2.786v8.478c-2.34-1.394-4.38-2.09-6.72-2.439V4.703zm14.58 8.767c-2.34.348-4.38 1.045-6.72 2.439V7.374C12 5.632 14.1 4.645 16.26 4.645v8.826z"/><path d="M9 .058c-1.56 0-2.76 1.22-2.76 2.671C6.24 4.181 7.5 5.4 9 5.4c1.5 0 2.76-1.22 2.76-2.671 0-1.452-1.2-2.67-2.76-2.67zm0 4.413c-.96 0-1.8-.755-1.8-1.742C7.2 1.8 7.98.987 9 .987s1.8.755 1.8 1.742c0 .93-.84 1.742-1.8 1.742z"/></g></symbol><symbol id="icon-checklist-banner" viewBox="0 0 56.69 56.69"><path style="fill:none" d="M0 0h56.69v56.69H0z"/><clipPath id="b"><use xlink:href="#a" style="overflow:visible"/></clipPath><path d="M21.14 34.46c0-6.77 5.48-12.26 12.24-12.26s12.24 5.49 12.24 12.26-5.48 12.26-12.24 12.26c-6.76-.01-12.24-5.49-12.24-12.26zm19.33 10.66 10.23 9.22s1.21 1.09 2.3-.12l2.09-2.32s1.09-1.21-.12-2.3l-10.23-9.22m-19.29-5.92c0-4.38 3.55-7.94 7.93-7.94s7.93 3.55 7.93 7.94c0 4.38-3.55 7.94-7.93 7.94-4.38-.01-7.93-3.56-7.93-7.94zm17.58 12.99 4.14-4.81" style="clip-path:url(#b);fill:none;stroke:#01324b;stroke-width:2;stroke-linecap:round"/><path d="M8.26 9.75H28.6M8.26 15.98H28.6m-20.34 6.2h12.5m14.42-5.2V4.86s0-2.93-2.93-2.93H4.13s-2.93 0-2.93 2.93v37.57s0 2.93 2.93 2.93h15.01M8.26 9.75H28.6M8.26 15.98H28.6m-20.34 6.2h12.5" style="clip-path:url(#b);fill:none;stroke:#01324b;stroke-width:2;stroke-linecap:round;stroke-linejoin:round"/></symbol><symbol id="icon-submit-closed" viewBox="0 0 18 18"><path d="m15 0c1.1045695 0 2 .8954305 2 2v4.5c0 .27614237-.2238576.5-.5.5s-.5-.22385763-.5-.5v-4.5c0-.51283584-.3860402-.93550716-.8833789-.99327227l-.1166211-.00672773h-9v3c0 1.1045695-.8954305 2-2 2h-3v10c0 .5128358.38604019.9355072.88337887.9932723l.11662113.0067277h4.5c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-4.5c-1.1045695 0-2-.8954305-2-2v-10.17157288c0-.53043297.21071368-1.0391408.58578644-1.41421356l3.82842712-3.82842712c.37507276-.37507276.88378059-.58578644 1.41421356-.58578644zm-2.5 7c3.0375661 0 5.5 2.46243388 5.5 5.5 0 3.0375661-2.4624339 5.5-5.5 5.5-3.03756612 0-5.5-2.4624339-5.5-5.5 0-3.03756612 2.46243388-5.5 5.5-5.5zm0 1c-2.4852814 0-4.5 2.0147186-4.5 4.5s2.0147186 4.5 4.5 4.5 4.5-2.0147186 4.5-4.5-2.0147186-4.5-4.5-4.5zm2.3087379 2.1912621c.2550161.2550162.2550161.668479 0 .9234952l-1.3859024 1.3845831 1.3859024 1.3859023c.2550161.2550162.2550161.668479 0 .9234952-.2550162.2550161-.668479.2550161-.9234952 0l-1.3859023-1.3859024-1.3845831 1.3859024c-.2550162.2550161-.668479.2550161-.9234952 0-.25501614-.2550162-.25501614-.668479 0-.9234952l1.3845831-1.3859023-1.3845831-1.3845831c-.25501614-.2550162-.25501614-.668479 0-.9234952.2550162-.25501614.668479-.25501614.9234952 0l1.3845831 1.3845831 1.3859023-1.3845831c.2550162-.25501614.668479-.25501614.9234952 0zm-9.8087379-8.7782621-3.587 3.587h2.587c.55228475 0 1-.44771525 1-1z"/></symbol><symbol id="icon-submit-open" viewBox="0 0 18 18"><path d="m15 0c1.1045695 0 2 .8954305 2 2v5.5c0 .27614237-.2238576.5-.5.5s-.5-.22385763-.5-.5v-5.5c0-.51283584-.3860402-.93550716-.8833789-.99327227l-.1166211-.00672773h-9v3c0 1.1045695-.8954305 2-2 2h-3v10c0 .5128358.38604019.9355072.88337887.9932723l.11662113.0067277h7.5c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-7.5c-1.1045695 0-2-.8954305-2-2v-10.17157288c0-.53043297.21071368-1.0391408.58578644-1.41421356l3.82842712-3.82842712c.37507276-.37507276.88378059-.58578644 1.41421356-.58578644zm-.5442863 8.18867991 3.3545404 3.35454039c.2508994.2508994.2538696.6596433.0035959.909917-.2429543.2429542-.6561449.2462671-.9065387-.0089489l-2.2609825-2.3045251.0010427 7.2231989c0 .3569916-.2898381.6371378-.6473715.6371378-.3470771 0-.6473715-.2852563-.6473715-.6371378l-.0010428-7.2231995-2.2611222 2.3046654c-.2531661.2580415-.6562868.2592444-.9065605.0089707-.24295423-.2429542-.24865597-.6576651.0036132-.9099343l3.3546673-3.35466731c.2509089-.25090888.6612706-.25227691.9135302-.00001728zm-.9557137-3.18867991c.2761424 0 .5.22385763.5.5s-.2238576.5-.5.5h-6c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm-8.5-3.587-3.587 3.587h2.587c.55228475 0 1-.44771525 1-1zm8.5 1.587c.2761424 0 .5.22385763.5.5s-.2238576.5-.5.5h-6c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5z"/></symbol><symbol id="icon-submit-upcoming" viewBox="0 0 18 18"><path d="m15 0c1.1045695 0 2 .8954305 2 2v4.5c0 .27614237-.2238576.5-.5.5s-.5-.22385763-.5-.5v-4.5c0-.51283584-.3860402-.93550716-.8833789-.99327227l-.1166211-.00672773h-9v3c0 1.1045695-.8954305 2-2 2h-3v10c0 .5128358.38604019.9355072.88337887.9932723l.11662113.0067277h4.5c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-4.5c-1.1045695 0-2-.8954305-2-2v-10.17157288c0-.53043297.21071368-1.0391408.58578644-1.41421356l3.82842712-3.82842712c.37507276-.37507276.88378059-.58578644 1.41421356-.58578644zm-2.5 7c3.0375661 0 5.5 2.46243388 5.5 5.5 0 3.0375661-2.4624339 5.5-5.5 5.5-3.03756612 0-5.5-2.4624339-5.5-5.5 0-1.6607442.73606908-3.14957021 1.89976608-4.15803695l-1.51549374.02214397c-.27613212.00263356-.49998143-.22483432-.49998143-.49020681 0-.24299316.17766103-.44509007.40961587-.48700057l.08928713-.00797472h2.66407569c.2449213 0 .4486219.17766776.490865.40963137l.008038.08929051v2.6642143c0 .275547-.2296028.4989219-.4949753.4989219-.24299317 0-.44342617-.1744719-.4830969-.4093269l-.00710993-.0906783.01983146-1.46576707c-.96740882.82538117-1.58082193 2.05345007-1.58082193 3.42478927 0 2.4852814 2.0147186 4.5 4.5 4.5s4.5-2.0147186 4.5-4.5-2.0147186-4.5-4.5-4.5c-.7684937 0-.7684937-1 0-1zm0 2.85c.3263501 0 .5965265.2405082.6429523.5539478l.0070477.0960522v1.731l.8096194.8093806c.2284567.2284567.2513024.5846637.068537.8386705l-.068537.0805683c-.2284567.2284567-.5846637.2513024-.8386705.068537l-.0805683-.068537-.9707107-.9707107c-.1125218-.1125218-.1855975-.257116-.2103268-.412296l-.0093431-.1180341v-1.9585786c0-.3589851.2910149-.65.65-.65zm-7.5-8.437-3.587 3.587h2.587c.55228475 0 1-.44771525 1-1z"/></symbol><symbol id="icon-facebook-bordered" viewBox="463.812 263.868 32 32"><path d="M479.812,263.868c-8.837,0-16,7.163-16,16s7.163,16,16,16s16-7.163,16-16S488.649,263.868,479.812,263.868z M479.812,293.868c-7.732,0-14-6.269-14-14s6.268-14,14-14s14,6.269,14,14S487.545,293.868,479.812,293.868z"/><path d="M483.025,280.48l0.32-2.477h-2.453v-1.582c0-0.715,0.199-1.207,1.227-1.207h1.311v-2.213 c-0.227-0.029-1.003-0.098-1.907-0.098c-1.894,0-3.186,1.154-3.186,3.271v1.826h-2.142v2.477h2.142v6.354h2.557v-6.354 L483.025,280.48L483.025,280.48z"/></symbol><symbol id="icon-twitter-bordered" viewBox="463.812 263.868 32 32"><g><path d="M486.416,276.191c-0.483,0.215-1.007,0.357-1.554,0.429c0.558-0.338,0.991-0.868,1.19-1.502 c-0.521,0.308-1.104,0.536-1.72,0.657c-0.494-0.526-1.2-0.854-1.979-0.854c-1.496,0-2.711,1.213-2.711,2.71 c0,0.212,0.023,0.419,0.069,0.616c-2.252-0.111-4.25-1.19-5.586-2.831c-0.231,0.398-0.365,0.866-0.365,1.361 c0,0.94,0.479,1.772,1.204,2.257c-0.441-0.015-0.861-0.138-1.227-0.339v0.031c0,1.314,0.937,2.41,2.174,2.656 c-0.227,0.062-0.47,0.098-0.718,0.098c-0.171,0-0.343-0.018-0.511-0.049c0.35,1.074,1.347,1.859,2.531,1.883 c-0.928,0.726-2.095,1.16-3.366,1.16c-0.22,0-0.433-0.014-0.644-0.037c1.2,0.768,2.621,1.215,4.155,1.215 c4.983,0,7.71-4.129,7.71-7.711c0-0.115-0.004-0.232-0.006-0.351C485.592,277.212,486.054,276.734,486.416,276.191z"/></g><path d="M479.812,263.868c-8.837,0-16,7.163-16,16s7.163,16,16,16s16-7.163,16-16S488.649,263.868,479.812,263.868z M479.812,293.868c-7.732,0-14-6.269-14-14s6.268-14,14-14s14,6.269,14,14S487.545,293.868,479.812,293.868z"/></symbol><symbol id="icon-weibo-bordered" viewBox="463.812 263.868 32 32"><path d="M479.812,263.868c-8.838,0-16,7.163-16,16s7.162,16,16,16c8.837,0,16-7.163,16-16S488.649,263.868,479.812,263.868z M479.812,293.868c-7.732,0-14-6.269-14-14s6.268-14,14-14c7.731,0,14,6.269,14,14S487.545,293.868,479.812,293.868z"/><g><path d="M478.552,285.348c-2.616,0.261-4.876-0.926-5.044-2.649c-0.167-1.722,1.814-3.33,4.433-3.588 c2.609-0.263,4.871,0.926,5.041,2.647C483.147,283.479,481.164,285.089,478.552,285.348 M483.782,279.63 c-0.226-0.065-0.374-0.109-0.259-0.403c0.25-0.639,0.276-1.188,0.005-1.581c-0.515-0.734-1.915-0.693-3.521-0.021 c0,0-0.508,0.224-0.378-0.181c0.247-0.798,0.209-1.468-0.178-1.852c-0.87-0.878-3.194,0.032-5.183,2.027 c-1.489,1.494-2.357,3.082-2.357,4.453c0,2.619,3.354,4.213,6.631,4.213c4.297,0,7.154-2.504,7.154-4.493 C485.697,280.594,484.689,279.911,483.782,279.63"/><path d="M486.637,274.833c-1.039-1.154-2.57-1.592-3.982-1.291l0,0c-0.325,0.068-0.532,0.391-0.465,0.72 c0.068,0.328,0.391,0.537,0.72,0.466c1.005-0.215,2.092,0.104,2.827,0.92c0.736,0.818,0.938,1.939,0.625,2.918l0,0 c-0.102,0.318,0.068,0.661,0.39,0.762c0.32,0.104,0.658-0.069,0.763-0.391v-0.001C487.953,277.558,487.674,275.985,486.637,274.833 "/><path d="M485.041,276.276c-0.504-0.562-1.25-0.774-1.938-0.63c-0.279,0.06-0.461,0.339-0.396,0.621 c0.062,0.281,0.335,0.461,0.617,0.398l0,0c0.336-0.071,0.702,0.03,0.947,0.307s0.312,0.649,0.207,0.979l0,0 c-0.089,0.271,0.062,0.565,0.336,0.654c0.274,0.09,0.564-0.062,0.657-0.336C485.686,277.604,485.549,276.837,485.041,276.276"/><path d="M478.694,282.227c-0.09,0.156-0.293,0.233-0.451,0.166c-0.151-0.062-0.204-0.235-0.115-0.389 c0.093-0.155,0.284-0.229,0.44-0.168C478.725,281.892,478.782,282.071,478.694,282.227 M477.862,283.301 c-0.253,0.405-0.795,0.58-1.202,0.396c-0.403-0.186-0.521-0.655-0.27-1.051c0.248-0.39,0.771-0.566,1.176-0.393 C477.979,282.423,478.109,282.889,477.862,283.301 M478.812,280.437c-1.244-0.326-2.65,0.294-3.19,1.396 c-0.553,1.119-0.021,2.369,1.236,2.775c1.303,0.42,2.84-0.225,3.374-1.436C480.758,281.989,480.1,280.77,478.812,280.437"/></g></symbol></svg> </div> <div class="u-vh-full"> <a class="c-skip-link" href="#main-content">Skip to main content</a> <div class="u-hide u-show-following-ad"></div> <aside class="adsbox c-ad c-ad--728x90" data-component-mpu> <div class="c-ad__inner"> <p class="c-ad__label">Advertisement</p> <div id="div-gpt-ad-LB1" data-ad-type="LB1" data-test="LB1-ad" data-pa11y-ignore data-gpt data-gpt-unitpath="/270604982/springer_open/geoscienceletters/articles" data-gpt-sizes="728x90,970x90" data-gpt-targeting="pos=LB1;doi=10.1186/s40562-017-0069-4;type=article;kwrd=Japanese historical seismology,Variations in repeated earthquakes,Compiled historical materials,Historical maximum intensity;pmc=G00002,G36000,G18009,G25005,G18010,G35010;sponsored=hgse;" > <noscript> <a href="//pubads.g.doubleclick.net/gampad/jump?iu=/270604982/springer_open/geoscienceletters/articles&sz=728x90,970x90&pos=LB1&doi=10.1186/s40562-017-0069-4&type=article&kwrd=Japanese historical seismology,Variations in repeated earthquakes,Compiled historical materials,Historical maximum intensity&pmc=G00002,G36000,G18009,G25005,G18010,G35010&sponsored=hgse&"> <img data-test="gpt-advert-fallback-img" src="//pubads.g.doubleclick.net/gampad/ad?iu=/270604982/springer_open/geoscienceletters/articles&sz=728x90,970x90&pos=LB1&doi=10.1186/s40562-017-0069-4&type=article&kwrd=Japanese historical seismology,Variations in repeated earthquakes,Compiled historical materials,Historical maximum intensity&pmc=G00002,G36000,G18009,G25005,G18010,G35010&sponsored=hgse&" alt="Advertisement" width="728" height="90"> </a> </noscript> </div> </div> </aside> <div id="membership-message-loader-desktop" class="placeholder" data-placeholder="/placeholder/v1/membership/message"></div> <div id="top" class="u-position-relative"> <header class="c-header" data-test="publisher-header"> <div class="c-header__container"> <div class="c-header__brand u-mr-48" itemscope itemtype="http://schema.org/Organization" data-test="navbar-logo-header"> <a href="https://www.springeropen.com" itemprop="url"> <img alt="SpringerOpen" itemprop="logo" width="160" height="30" role="img" src=/static/images/springeropen/logo-springer-open-d04c3ea16c.svg> </a> </div> <div class="c-header__navigation"> <button type="button" class="c-header__link u-button-reset u-mr-24" data-expander data-expander-target="#publisher-header-search" data-expander-autofocus="firstTabbable" data-test="header-search-button" aria-controls="publisher-header-search" aria-expanded="false"> <span class="u-display-flex u-align-items-center"> <span>Search</span> <svg class="u-icon u-flex-static u-ml-8" aria-hidden="true" focusable="false"> <use xlink:href="#icon-search"></use> </svg> </span> </button> <nav> <ul class="c-header__menu" data-enhanced-menu data-test="publisher-navigation"> <li class="c-header__item u-hide-at-lt-lg"> <a class="c-header__link" href="//www.springeropen.com/get-published"> Get published </a> </li> <li class="c-header__item u-hide-at-lt-lg"> <a class="c-header__link" href="//www.springeropen.com/journals"> Explore Journals </a> </li> <li class="c-header__item u-hide-at-lt-lg"> <a class="c-header__link" href="https://www.springer.com/gp/open-access/books"> Books </a> </li> <li class="c-header__item u-hide-at-lt-lg"> <a class="c-header__link" href="//www.springeropen.com/about"> About </a> </li> <li class="c-header__item"> <a data-enhanced-account class="c-header__link" href="https://www.springeropen.com/account" data-test="login-link"> My account </a> </li> </ul> </nav> </div> </div> </header> <div class="c-popup-search u-js-hide" id="publisher-header-search"> <div class="u-container"> <div class="c-popup-search__container"> <div class="ctx-search"> <form role="search" class="c-form-field js-skip-validation" method="GET" action="//www.springeropen.com/search" data-track="search" data-track-context="pop out website-wide search in bmc website header" data-track-category="Search and Results" data-track-action="Submit search" data-dynamic-track-label data-track-label="" data-test="global-search"> <label for="publisherSearch" class="c-form-field__label">Search all SpringerOpen articles</label> <div class="u-display-flex"> <input id="publisherSearch" class="c-form-field__input" data-search-input autocomplete="off" role="textbox" data-test="search-input" name="query" type="text" value=""/> <div> <button class="u-button u-button--primary" type="submit" data-test="search-submit-button"> <span class="u-visually-hidden">Search</span> <svg class="u-icon u-flex-static" width="16" height="16" aria-hidden="true" focusable="false"> <use xlink:href="#icon-search"></use> </svg> </button> </div> </div> <input type="hidden" name="searchType" value="publisherSearch"/> </form> </div> </div> </div> </div> </div> <header class="c-journal-header ctx-journal-header"> <div class="u-container"> <div class="c-journal-header__grid"> <div class="c-journal-header__grid-main"> <div class="h2 c-journal-header__title" id="journalTitle"> <a href="/">Geoscience Letters</a> </div> <p class="c-journal-header__subtitle">Official Journal of the Asia Oceania Geosciences Society (AOGS)</p> </div> </div> </div> <div class="c-navbar c-navbar--with-submit-button"> <div class="c-navbar__container"> <div class="c-navbar__content"> <nav class="c-navbar__nav"> <ul class="c-navbar__nav c-navbar__nav--journal" role="menu" data-test="site-navigation"> <li class="c-navbar__item" role="menuitem"> <a class="c-navbar__link" data-track="click" data-track-category="About" data-track-action="Clicked journal navigation link" href='/about'>About</a> </li> <li class="c-navbar__item" role="menuitem"> <a class="c-navbar__link c-navbar__link--is-shown" data-track="click" data-track-category="Articles" data-track-action="Clicked journal navigation link" href='/articles'>Articles</a> </li> <li class="c-navbar__item" role="menuitem"> <a class="c-navbar__link" data-track="click" data-track-category="Submission Guidelines" data-track-action="Clicked journal navigation link" href='/submission-guidelines'>Submission Guidelines</a> </li> <li class="c-navbar__item" role="menuitem" data-test="journal-header-submit-button"> <div class=""> <a class="u-button u-button--tertiary u-button--alt-colour-on-mobile" href="https://submission.springernature.com/new-submission/40562/3" data-track="click_submit_manuscript" data-track-action="manuscript submission" data-track-category="article" data-track-label="button in journal nav" data-track-context="journal header on article page" data-track-external data-test="submit-manuscript-button">Submit manuscript<svg class="u-ml-8" width="15" height="16" aria-hidden="true" focusable="false"><use xlink:href="#icon-submit-open"></use></svg></a> </div> </li> </ul> </nav> </div> </div> </div> </header> <div class="u-container u-mt-32 u-mb-32 u-clearfix" id="main-content" data-component="article-container"> <main class="c-article-main-column u-float-left js-main-column" data-track-component="article body"> <div class="c-context-bar u-hide" data-test="context-bar" data-context-bar aria-hidden="true"> <div class="c-context-bar__container u-container" data-track-context="sticky banner"> <div class="c-context-bar__title"> A short history of Japanese historical seismology: past and the present </div> <div class="c-pdf-container"> <div class="c-pdf-download u-clear-both"> <a href="//geoscienceletters.springeropen.com/counter/pdf/10.1186/s40562-017-0069-4.pdf" class="u-button u-button--full-width u-button--primary u-justify-content-space-between c-pdf-download__link" data-article-pdf="true" data-readcube-pdf-url="true" data-test="pdf-link" data-draft-ignore="true" data-track="content_download" data-track-type="article pdf download" data-track-action="download pdf" data-track-label="link" data-track-external download> <span class="c-pdf-download__text">Download PDF</span> <svg aria-hidden="true" focusable="false" width="16" height="16" class="u-icon"><use xlink:href="#icon-download"/></svg> </a> </div> </div> </div> </div> <div class="c-pdf-button__container u-hide-at-lg js-context-bar-sticky-point-mobile"> <div class="c-pdf-container" data-track-context="article body"> <div class="c-pdf-download u-clear-both"> <a href="//geoscienceletters.springeropen.com/counter/pdf/10.1186/s40562-017-0069-4.pdf" class="u-button u-button--full-width u-button--primary u-justify-content-space-between c-pdf-download__link" data-article-pdf="true" data-readcube-pdf-url="true" data-test="pdf-link" data-draft-ignore="true" data-track="content_download" data-track-type="article pdf download" data-track-action="download pdf" data-track-label="link" data-track-external download> <span class="c-pdf-download__text">Download PDF</span> <svg aria-hidden="true" focusable="false" width="16" height="16" class="u-icon"><use xlink:href="#icon-download"/></svg> </a> </div> </div> </div> <article lang="en"> <div class="c-article-header"> <ul class="c-article-identifiers" data-test="article-identifier"> <li class="c-article-identifiers__item" data-test="article-category">Review</li> <li class="c-article-identifiers__item"> <a href="https://www.springernature.com/gp/open-research/about/the-fundamentals-of-open-access-and-open-research" data-track="click" data-track-action="open access" data-track-label="link" class="u-color-open-access" data-test="open-access">Open access</a> </li> <li class="c-article-identifiers__item">Published: <time datetime="2017-01-28">28 January 2017</time></li> </ul> <h1 class="c-article-title" data-test="article-title" data-article-title="">A short history of Japanese historical seismology: past and the present</h1> <ul class="c-article-author-list c-article-author-list--short" data-test="authors-list" data-component-authors-activator="authors-list"><li class="c-article-author-list__item"><a data-test="author-name" data-track="click" data-track-action="open author" data-track-label="link" href="#auth-Ritsuko_S_-Matsu_ura-Aff1" data-author-popup="auth-Ritsuko_S_-Matsu_ura-Aff1" data-author-search="Matsu’ura, Ritsuko S." data-corresp-id="c1">Ritsuko S. Matsu’ura<svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-mail-medium"></use></svg></a><span class="u-js-hide"> <a class="js-orcid" href="http://orcid.org/0000-0002-5108-8343"><span class="u-visually-hidden">ORCID: </span>orcid.org/0000-0002-5108-8343</a></span><sup class="u-js-hide"><a href="#Aff1">1</a></sup> </li></ul> <p class="c-article-info-details" data-container-section="info"> <a data-test="journal-link" href="/" data-track="click" data-track-action="journal homepage" data-track-category="article body" data-track-label="link"><i data-test="journal-title">Geoscience Letters</i></a> <b data-test="journal-volume"><span class="u-visually-hidden">volume</span> 4</b>, Article number: <span data-test="article-number">3</span> (<span data-test="article-publication-year">2017</span>) <a href="#citeas" class="c-article-info-details__cite-as u-hide-print" data-track="click" data-track-action="cite this article" data-track-label="link">Cite this article</a> </p> <div class="c-article-metrics-bar__wrapper u-clear-both"> <ul class="c-article-metrics-bar u-list-reset"> <li class=" c-article-metrics-bar__item" data-test="access-count"> <p class="c-article-metrics-bar__count">15k <span class="c-article-metrics-bar__label">Accesses</span></p> </li> <li class="c-article-metrics-bar__item" data-test="citation-count"> <p class="c-article-metrics-bar__count">13 <span class="c-article-metrics-bar__label">Citations</span></p> </li> <li class="c-article-metrics-bar__item" data-test="altmetric-score"> <p class="c-article-metrics-bar__count">21 <span class="c-article-metrics-bar__label">Altmetric</span></p> </li> <li class="c-article-metrics-bar__item"> <p class="c-article-metrics-bar__details"><a href="/articles/10.1186/s40562-017-0069-4/metrics" data-track="click" data-track-action="view metrics" data-track-label="link" rel="nofollow">Metrics <span class="u-visually-hidden">details</span></a></p> </li> </ul> </div> </div> <section aria-labelledby="Abs1" data-title="Abstract" lang="en"><div class="c-article-section" id="Abs1-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="Abs1">Abstract</h2><div class="c-article-section__content" id="Abs1-content"><p>Since seismicity in Japan is fairly high, Japanese interest in historical seismicity can be traced back to the nineth century, only a few centuries after the formation of the ancient ruling state. A 1000 years later, 2 years earlier than the modern seismological society was founded, the research on historical seismology started in Japan in 1878. By the accumulation for the recent 140 years, the present Japanese seismologists can read many historical materials without reading cursive scripts. We have a convenient access to the historical information related to earthquakes, in the modern characters of 27,759 pages. We now have 214 epicenters of historical earthquakes from 599 <span class="u-small-caps">ad</span> to 1872. Among them, 134 events in the early modern period were assigned hypocentral depths and proper magnitudes. The intensity data of 8700 places by those events were estimated. These precise intensity data enabled us to compare the detailed source areas of pairs of repeated historical earthquakes, such as the 1703 Genroku earthquake with the 1923 Kanto earthquake, and the 1707 Hoei earthquake with the summation of the 1854 Ansei Tokai and Ansei Nankai earthquakes. It is revealed that the focal area of the former larger event cannot completely include those of the latter smaller earthquakes, although those were believed to be typical sets of characteristic interplate earthquakes at the Sagami trough and at the Nankai trough. Research on historical earthquakes is very important to assess the seismic hazard in the future. We still have one-fifth events of the early modern period to be analyzed in detail. The compilation of places experienced high intensities in the modern events is also necessary. For the ancient and medieval periods, many equivocal events are still left. The further advance of the interdisciplinary research on historical seismology is necessary.</p></div></div></section> <section data-title="Introduction"><div class="c-article-section" id="Sec1-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="Sec1">Introduction</h2><div class="c-article-section__content" id="Sec1-content"><p>In and around Japan, one-tenth of earthquakes in the world occur. As average there is one M7 earthquake each year in Japan, we have been suffering frequent earthquake disasters even since ancient time. The first compilation of natural disaster history (Sugawara <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 892" title="Sugawara M (892) Earthquakes, Ruiju Kokushi Vol. 171, Disaster 5. Japanese Goverment (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR70" id="ref-link-section-d62103128e401">892</a>) was done by Michizane Sugawara [845–903], who was the talented government official in the ancient statute system of Japan. He classified all the chronological contents of the six nation history books under various items, such as natural disaster, customs, Buddhism, and penal code. In his compilation, 23 destructive earthquakes were included among 632 earthquakes felt in somewhere in Japan for the period from 416 <span class="u-small-caps">ad</span> to 887 <span class="u-small-caps">ad</span>.</p><p>When Japanese modern government started in 1868, many foreign teachers were invited to Japan, mostly to Tokyo (Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig1">1</a>). It was inevitable that the high seismicity around Tokyo, where a felt earthquake occurs once in a few months at least, made those invited foreign scientists interested in earthquakes. After a moderate destructive earthquake, which was called Yokohama Earthquake (M5.8), occurred near Tokyo in 1880, the world first academic society of earthquake research, <i>Seismological Society of Japan</i> (SSJ), was established in Tokyo by the leadership of John Milne [1850–1913], who came to teach mining technology from Britain, but became a seismologist in Japan. The first president of the society was Ichizo Hattori [1851–1929], who wrote the first modern paper on historical seismology even before the society was established (Hattori <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1878" title="Hattori I (1878) Destructive earthquakes in Japan. Trans Asiatic Soc Jpn 6:249–275" href="/articles/10.1186/s40562-017-0069-4#ref-CR22" id="ref-link-section-d62103128e419">1878</a>).</p><div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-1" data-title="Fig. 1"><figure><figcaption><b id="Fig1" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 1</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/1" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig1_HTML.gif?as=webp"><img aria-describedby="Fig1" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig1_HTML.gif" alt="figure 1" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-1-desc"><p>Place names in and around Japan. Cities, districts, and other places in this paper are shown</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/1" data-track-dest="link:Figure1 Full size image" aria-label="Full size image figure 1" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> <p>In 1891, Nobi earthquake (M8.0) destroyed state-of-the-art structures at that time such as brick buildings and the railway bridges around Nagoya. Through the effort of Dairoku Kikuchi [1855–1917] and others, the Earthquake Investigation Committee was made in 1892, and the study of historical earthquakes was specified in the second of 18 listed items of the committee business.</p><p>Since nineteenth century, modern research on historical seismology has been continued in Japan. <i>The Society of Historical Earthquake Studies</i> was established in 1984, and it is now home to more than 300 members and publishes the scientific journal once a year. Here we briefly review the history of the Japanese historical seismology and the achievement at present.</p><h3 class="c-article__sub-heading" id="Sec2">Before 1923 Kanto earthquake</h3><p>The first modern paper of historical seismology (Hattori <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1878" title="Hattori I (1878) Destructive earthquakes in Japan. Trans Asiatic Soc Jpn 6:249–275" href="/articles/10.1186/s40562-017-0069-4#ref-CR22" id="ref-link-section-d62103128e457">1878</a>) was inspired by the discussion of the author with Heinrich Edmund Naumann [1854–1927], who was a German geologist. Since Hattori was educated as a samurai in the early modern period, and then got the Bachelor of Science at Rutgers College in the United States, he could not only read the original historical documents fluently, but also do rudimentary analysis. He listed 149 destructive earthquakes from 34 rather reliable historical materials for the period from 416 <span class="u-small-caps">ad</span> to 1872.</p><p>At the same time, Naumann also wrote a paper on historical earthquakes in Japan (Naumann <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1878" title="Naumann E (1878) Über erdbeben und vulcanausbrüche in Japan. Mitteilungen der Deutschen Gesellschaft für Natur-und Völkerkunde Ostasiens 2(15):163–216 (in German)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR49" id="ref-link-section-d62103128e466">1878</a>). Soon after he arrived to Tokyo in 1875, he was interested in earthquakes and collected 20 books on earthquakes, which were mostly published in eighteenth and nineteenth centuries in Japan. He listed up 213 earthquakes for the period from 416 <span class="u-small-caps">ad</span> to 1872. He also estimated damage areas of three large earthquakes, which occurred in the middle of nineteenth century. Since books he used were mostly compiled in the Edo era, it was the matter of course that his list was more contaminated by fakes and duplications than Hattori’s. He relied only on secondary materials for the ancient and the medieval period without realizing it. However, the discussion he did on historical seismology in that paper vividly showed his talent as a scientist as much as his papers on geology. After SSJ was founded, Milne (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1881" title="Milne J (1881) Notes on the great earthquakes of Japan. Trans Seismol Soc Jpn 3:65–102" href="/articles/10.1186/s40562-017-0069-4#ref-CR33" id="ref-link-section-d62103128e472">1881</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1882" title="Milne J (1882) The distribution of seismic activity in Japan. Trans Seismol Soc Jpn 4:1–30" href="/articles/10.1186/s40562-017-0069-4#ref-CR34" id="ref-link-section-d62103128e475">1882</a>) listed 366 earthquakes for the period from 295 <span class="u-small-caps">bc</span> to 1872 <span class="u-small-caps">ad</span> from 64 documents. However, his list rather retracted from Hattori’s and Naumann’s, since he compiled without distinction of myth and fact, or consistency between materials.</p><p>Hatasu Ogasima [1857–1892] also made a list of historical earthquakes (Ogashima <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1894" title="Ogashima H (1894) Japanese history of disaster and extraordinary. Mining Institute of Japan, Tokyo, pp 845 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR50" id="ref-link-section-d62103128e488">1894</a>). He was an engineer of the Bureau of Mines, but his boss sent him to the Bureau of Statistics for the recuperation of his pulmonary tuberculosis. Since the Bureau of Historiography was next to the Bureau of Statistics, he extensively read 213 original historical documents gathered to the Bureau of Historiography by that time, and compiled two books: food history of Japan and the disaster history of Japan. He was the “Sugawara of Meiji era.” The early officials of Meiji government like Hattori and Ogashima had the basic cultural training on Chinese and Japanese classics of the early modern period, in addition to the higher education of the West in their adolescence. They had learned necessary abilities for the historical seismology very naturally.</p><p>When the Earthquake Investigation Committee was founded in 1892, Minoru Tayama [1865–1907], who was a historian and a staff of the Bureau of Historiography, was assigned to compile historical materials related to earthquakes from documents gathered for the national historiography. He published 1201 pages of historical earthquake records from 465 major historical documents obtained by that time (Tayama <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1904" title="Tayama M (1904) Historical documents on earthquakes in great Japan. Rep Earthq Inv Com, 46A, 1-606, B, 1-640 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR56" id="ref-link-section-d62103128e494">1904</a>). Those letterpress printed pages are decipherable in OCR now. Since Seikei Sekiya [1855–1896], who was the first professor of seismology in the world, superintended Tayama’s compilation, he left a list of earthquakes (Sekiya <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1899" title="Sekiya S (1899) The earthquake investigation committee catalogue of Japanese earthquakes. J Coll Sci Imp Univ Tokyo 11:315–388" href="/articles/10.1186/s40562-017-0069-4#ref-CR53" id="ref-link-section-d62103128e497">1899</a>). Sekiya’s list was actually finished by Fusakichi Omori [1868–1923], and contains 1898 felt earthquakes for the period from 416 <span class="u-small-caps">ad</span> to 1865. After Tayama finished the compilation, Omori (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1913" title="Omori F (1913) Overview of large earthquakes of Japan. Rep Earthq Inv. Com 68B:1–180 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR51" id="ref-link-section-d62103128e503">1913</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1919" title="Omori F (1919) Summary list of large earthquakes of Japan. Rep Earthq Inv Com 88B:1–71 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR52" id="ref-link-section-d62103128e506">1919</a>) selected 166 large earthquakes for the period from 416 <span class="u-small-caps">ad</span> to 1872, and summarized damage of those major events.</p><h3 class="c-article__sub-heading" id="Sec3">After 1923 Kanto earthquake</h3><p>When 1923 Kanto earthquake (M7.9) destroyed Yokohama and Tokyo severely, Kinkichi Musha [1891–1962], who was a high school English teacher and involved in words compilation for English–Japanese dictionary, changed his target of collection from English words to the historical materials related to earthquakes. Since 1928, Torahiko Terada [1878–1935], who was the famous physicist and the essayist, encouraged Musha’s effort. Terada was instrumental in the establishment of the Earthquake Research Institute (ERI), and was considered as the affectionate father to young scientists at ERI. After Terada passed away, Akitsune Imamura [1870–1948] sponsored Musha. He mainly compiled information from documents available in the Ueno imperial library in Tokyo, where most historical materials were gathered from former clans’ colleges for samurais in the Edo era. He added his compilation to Tayama’s, and published them in mimeograph printing. The first volume (Musha <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1941" title="Musha K (1941) Enlarged and revised edition of historical documents on earthquakes in great Japan 1. Ministry of Education, Tokyo, pp 945 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR35" id="ref-link-section-d62103128e521">1941</a>) was published before the Pacific War began, and the quality of it was not bad. The print and paper quality of the second and third volumes (Musha <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1943a" title="Musha K (1943a) Enlarged and revised edition of historical documents on earthquakes in great Japan 2. Ministry of Education, Tokyo, pp 754 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR36" id="ref-link-section-d62103128e524">1943a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Musha K (1943b) Enlarged and revised edition of historical documents on earthquakes in great Japan 3. Ministry of Education, Tokyo, pp 933 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR37" id="ref-link-section-d62103128e527">b</a>) was very poor due to the lack of supplies in Japan, even 2 years before the end of the war. It is often very difficult to interpret even in its original print.</p><p>1948 Fukui earthquake (M7.1) caused devastating damage to the Fukui basin. The General Headquarters, the Supreme Commander for the Allied Powers (GHQ) began to pay attention for earthquakes in Japan. Takahasi (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1951" title="Takahasi R (1951) An estimate of future tsunami damage along the Pacific coast of Japan. Bull Earthq Res Inst 29:71–95" href="/articles/10.1186/s40562-017-0069-4#ref-CR55" id="ref-link-section-d62103128e533">1951</a>) estimated the tsunami risk along the Pacific coast of Japan, and Kawasumi (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1951" title="Kawasumi H (1951) Measures of earthquake danger and expectancy of maximum intensity throughout Japan as inferred from the seismic activity in historical times. Bull Earthq Res Inst 29:469–482" href="/articles/10.1186/s40562-017-0069-4#ref-CR27" id="ref-link-section-d62103128e536">1951</a>) expected the maximum accelerations due to earthquakes for the coming century. To do their studies, the catalogue of historical earthquakes was necessary. GHQ encouraged Musha to publish the historical catalogue of earthquakes. For the first time after Imamura passed away, Musha got the fund to publish the last volume of his compilation in letterpress printing (Musha <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1951c" title="Musha K (1951c) Historical documents on earthquakes in Japan. Mainichi Newspapers, Tokyo, pp 757 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR46" id="ref-link-section-d62103128e539">1951c</a>). In this volume, Musha added the list of 8953 felt earthquakes and eruptions in Japan and Korea for the period from 2 <span class="u-small-caps">ad</span> to 1867, and the list of 190 destructive earthquakes in Japan for the period from 599 <span class="u-small-caps">ad</span> to 1872. He also published the catalogue of 257 historical earthquakes in and around Japan for the same period, which was left by Imamura, in mimeograph printings (Musha <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1950a" title="Musha K (1950a) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 9:1–19 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR38" id="ref-link-section-d62103128e549">1950a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Musha K (1950b) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 10:20–51 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR39" id="ref-link-section-d62103128e552">b</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference c" title="Musha K (1950c) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 11:52–83 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR40" id="ref-link-section-d62103128e555">c</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference d" title="Musha K (1950d) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 12:84–115 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR41" id="ref-link-section-d62103128e558">d</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference e" title="Musha K (1950e) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 13:116–1147 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR42" id="ref-link-section-d62103128e561">e</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference f" title="Musha K (1950f) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 14:148–179 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR43" id="ref-link-section-d62103128e564">f</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1951a" title="Musha K (1951a) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 15:180–203 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR44" id="ref-link-section-d62103128e568">1951a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Musha K (1951b) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 16:204–236 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR45" id="ref-link-section-d62103128e571">b</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1953a" title="Musha K (1953a) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 17:237–266 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR47" id="ref-link-section-d62103128e574">1953a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Musha K (1953b) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 18:267–298 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR48" id="ref-link-section-d62103128e577">b</a>). Kawasumi (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1951" title="Kawasumi H (1951) Measures of earthquake danger and expectancy of maximum intensity throughout Japan as inferred from the seismic activity in historical times. Bull Earthq Res Inst 29:469–482" href="/articles/10.1186/s40562-017-0069-4#ref-CR27" id="ref-link-section-d62103128e580">1951</a>) modified that catalogue and used 251 historical earthquakes. He estimated 167 epicenters and 236 magnitudes of his scale (Mk) among those events (Figs. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig2">2</a>, <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig3">3</a>).</p><div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-2" data-title="Fig. 2"><figure><figcaption><b id="Fig2" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 2</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/2" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig2_HTML.gif?as=webp"><img aria-describedby="Fig2" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig2_HTML.gif" alt="figure 2" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-2-desc"><p>Number of historical earthquakes listed in each paper. 1951 w/epi and 2013 w/epi show number of earthquakes of which epicenters were estimated in Kawasumi (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1951" title="Kawasumi H (1951) Measures of earthquake danger and expectancy of maximum intensity throughout Japan as inferred from the seismic activity in historical times. Bull Earthq Res Inst 29:469–482" href="/articles/10.1186/s40562-017-0069-4#ref-CR27" id="ref-link-section-d62103128e600">1951</a>) and Usami et al. (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2013" title="Usami T, Ishii H, Imamura T, Takemura M, Matsu’ura RS (2013) Materials for comprehensive list of Japanese destructive earthquakes 599-2012 [Revised 2013]. Univ Tokyo Press, Tokyo, p 694 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR68" id="ref-link-section-d62103128e603">2013</a>), respectively. <i>Each number</i> shows number of events of ancient [416 <span class="u-small-caps">ad</span>- 1184], medieval [1185–1585], and early modern [1586–1872] periods, respectively. Politically, early modern period of Japan ended in 1868. However, 1872 is usually used as the last year of historical earthquakes in Japan, because we need the conversion of the lunar calendar to Gregorian calendar by this year. The Meiji government switched to the solar calendar from the lunar calendar in the beginning of 1873</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/2" data-track-dest="link:Figure2 Full size image" aria-label="Full size image figure 2" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> <div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-3" data-title="Fig. 3"><figure><figcaption><b id="Fig3" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 3</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/3" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig3_HTML.gif?as=webp"><img aria-describedby="Fig3" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig3_HTML.gif" alt="figure 3" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-3-desc"><p>Epicenter distributions of destructive earthquakes in Japan from 679 <span class="u-small-caps">ad</span> to 1872 in the latest Usami’s list and Kawasumi’s list. <i>Red circles</i> are epicenters of 214 events of Usami et al. (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2013" title="Usami T, Ishii H, Imamura T, Takemura M, Matsu’ura RS (2013) Materials for comprehensive list of Japanese destructive earthquakes 599-2012 [Revised 2013]. Univ Tokyo Press, Tokyo, p 694 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR68" id="ref-link-section-d62103128e637">2013</a>). <i>Blue circles</i> are epicenters of 167 events in Kawasumi (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1951" title="Kawasumi H (1951) Measures of earthquake danger and expectancy of maximum intensity throughout Japan as inferred from the seismic activity in historical times. Bull Earthq Res Inst 29:469–482" href="/articles/10.1186/s40562-017-0069-4#ref-CR27" id="ref-link-section-d62103128e643">1951</a>). Mk is transformed to the usual magnitude (M)</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/3" data-track-dest="link:Figure3 Full size image" aria-label="Full size image figure 3" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> <h3 class="c-article__sub-heading" id="Sec4">After 1964 Niigata earthquake</h3><p>1964 Niigata earthquake (M7.5) destroyed new bridges over the Shinano River including the Showa big bridge, which was completed only 2 weeks before the quake, while Bandai bridge build in 1929 survived. This earthquake not only triggered the foundation of earthquake insurance system for housing in Japan, but also prompted the commencement of the earthquake prediction research program proposed in 1963. In 1965, Japanese program for the earthquake prediction started with a small budget.</p><p>In 1976, Katsuhiko Ishibashi [1944-] warned that a large earthquake was impending around the Suruga Bay from the study on 1854 Ansei Tokai earthquake (M8.4) (Ishibashi <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1976" title="Ishibashi K (1976) Reappraisal of the major earthquake that is expected in the Tokai region—a large earthquake in Suruga Bay. Proc Seismol Soc Jpn 2:30–34 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR23" id="ref-link-section-d62103128e666">1976</a>). His warning pushed up the historical seismology to an important item of the program. For the first time after 70 years since Tayama finished his compilation, the collection business of historical documents on earthquakes began for seismologists with the cooperation of the Historiographical Office of the University of Tokyo. Tatsuo Usami [1924-] of ERI was in charge of it. Although he was a theoretical seismologist, he energetically collected a lot of local documents preserved in old warehouses of former village headmen and large merchants in the early modern period. He published collected materials in letterpress printing (ERI <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1981" title="Earthquake Research Institute (1981) New collection of historical materials on earthquakes in Japan, vol 1. ERI, Tokyo, pp 193 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR1" id="ref-link-section-d62103128e669">1981</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1982a" title="Earthquake Research Institute (1982a) New collection of historical materials on earthquakes in Japan, vol 2. ERI, Tokyo, pp 575 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR2" id="ref-link-section-d62103128e672">1982a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Earthquake Research Institute (1982b) New collection of historical materials on earthquakes in Japan, vol S2. ERI, Tokyo, pp 290 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR3" id="ref-link-section-d62103128e675">b</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1983a" title="Earthquake Research Institute (1983a) New collection of historical materials on earthquakes in Japan, vol 3. ERI, Tokyo, pp 961 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR4" id="ref-link-section-d62103128e678">1983a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Earthquake Research Institute (1983b) New collection of historical materials on earthquakes in Japan, vol S3. ERI, Tokyo, pp 590 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR5" id="ref-link-section-d62103128e682">b</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1984a" title="Earthquake Research Institute (1984a) New collection of historical materials on earthquakes in Japan, vol 4. ERI, Tokyo, pp 870 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR6" id="ref-link-section-d62103128e685">1984a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Earthquake Research Institute (1984b) New collection of historical materials on earthquakes in Japan, vol S4. ERI, Tokyo, pp 582 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR7" id="ref-link-section-d62103128e688">b</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1985a" title="Earthquake Research Institute (1985a) New collection of historical materials on earthquakes in Japan, vol 5. ERI, Tokyo, pp 599 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR8" id="ref-link-section-d62103128e691">1985a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Earthquake Research Institute (1985b) New collection of historical materials on earthquakes in Japan, vol S5-1. ERI, Tokyo, pp 403 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR9" id="ref-link-section-d62103128e694">b</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1986a" title="Earthquake Research Institute (1986a) New collection of historical materials on earthquakes in Japan, vol S5-3. ERI, Tokyo, pp 293 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR10" id="ref-link-section-d62103128e697">1986a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Earthquake Research Institute (1986b) New collection of historical materials on earthquakes in Japan, vol S5-4. ERI, Tokyo, pp 667 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR11" id="ref-link-section-d62103128e701">b</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1987a" title="Earthquake Research Institute (1987a) New collection of historical materials on earthquakes in Japan, vol S5-2-1&2. ERI, Tokyo, pp 1931 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR12" id="ref-link-section-d62103128e704">1987a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Earthquake Research Institute (1987b) New collection of historical materials on earthquakes in Japan, vol S5-5-1&2. ERI, Tokyo, pp 2528 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR13" id="ref-link-section-d62103128e707">b</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1988" title="Earthquake Research Institute (1988) New collection of historical materials on earthquakes in Japan, vol S5-6-1&2. ERI, Tokyo, pp 1834 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR14" id="ref-link-section-d62103128e710">1988</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1989a" title="Earthquake Research Institute (1989a) New collection of historical materials on earthquakes in Japan, Suppl. ERI, Tokyo, pp 1222 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR15" id="ref-link-section-d62103128e713">1989a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Earthquake Research Institute (1989b) New collection of historical materials on earthquakes in Japan, Suppl S. ERI, Tokyo, pp 992 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR16" id="ref-link-section-d62103128e716">b</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1993" title="Earthquake Research Institute (1993) New collection of historical materials on earthquakes in Japan, Add. Suppl. ERI, Tokyo, pp 1043 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR17" id="ref-link-section-d62103128e720">1993</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1994" title="Earthquake Research Institute (1994) New collection of historical materials on earthquakes in Japan, Add. Suppl. S. ERI, Tokyo, pp 1228 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR18" id="ref-link-section-d62103128e723">1994</a>). He also edited a comprehensive list of Japanese destructive earthquakes once in a decade since 1975 (Usami <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1975" title="Usami T (1975) Materials for comprehensive list of Japanese destructive earthquakes. Univ Tokyo Press, Tokyo, p 327 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR57" id="ref-link-section-d62103128e726">1975</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1987" title="Usami T (1987) Materials for comprehensive list of Japanese destructive earthquakes [New edition]. Univ Tokyo Press, Tokyo, p 434 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR58" id="ref-link-section-d62103128e729">1987</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1996" title="Usami T (1996) Materials for comprehensive list of Japanese destructive earthquakes [Revised and enlarged edition] 416-1995. Univ Tokyo Press, Tokyo, p 493 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR59" id="ref-link-section-d62103128e732">1996</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2003" title="Usami T (2003) Materials for comprehensive list of Japanese destructive earthquakes [Latest Edition] [416]-2001. Univ Tokyo Press, Tokyo, p 605 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR63" id="ref-link-section-d62103128e735">2003</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2013" title="Usami T, Ishii H, Imamura T, Takemura M, Matsu’ura RS (2013) Materials for comprehensive list of Japanese destructive earthquakes 599-2012 [Revised 2013]. Univ Tokyo Press, Tokyo, p 694 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR68" id="ref-link-section-d62103128e739">2013</a>; Figs. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig2">2</a>, <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig3">3</a>). He also continued the compilation and published them in the same form (Usami <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1998" title="Usami T (1998) Addendum of historical documents on earthquakes in Japan, 1. Japan Electric Association, Tokyo, pp 512 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR60" id="ref-link-section-d62103128e748">1998</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1999" title="Usami T (1999) Addendum of historical documents on earthquakes in Japan, S. Japan Electric Association, Tokyo, pp 1045 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR61" id="ref-link-section-d62103128e751">1999</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2002" title="Usami T (2002) Addendum of historical documents on earthquakes in Japan, 2, T. Usami, Tokyo, pp 583 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR62" id="ref-link-section-d62103128e754">2002</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2005" title="Usami T (2005) Addendum of historical documents on earthquakes in Japan, 3, T. Usami, Tokyo, pp 814 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR64" id="ref-link-section-d62103128e758">2005</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2008" title="Usami T (2008) Addendum of historical documents on earthquakes in Japan, 4–1&2, T. Tokyo, Usami, p 1874 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR65" id="ref-link-section-d62103128e761">2008</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2012" title="Usami T (2012) Addendum of historical documents on earthquakes in Japan, 5-1&2, T. Usami, Tokyo, pp 1526 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR66" id="ref-link-section-d62103128e764">2012</a>) after his retirement.</p><p>The accumulation of compiled historical materials from Tayama (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1904" title="Tayama M (1904) Historical documents on earthquakes in great Japan. Rep Earthq Inv Com, 46A, 1-606, B, 1-640 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR56" id="ref-link-section-d62103128e770">1904</a>) to Usami (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2012" title="Usami T (2012) Addendum of historical documents on earthquakes in Japan, 5-1&2, T. Usami, Tokyo, pp 1526 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR66" id="ref-link-section-d62103128e773">2012</a>) is now 27,759 pages in 35 books of printed style. The present Japanese seismologists do not have to struggle reading cursive scripts nor line format characters to survey historical earthquakes. However, we have to go back to the original when the research requires the material criticism.</p><p>A large amount of early modern historical materials related to earthquakes enabled Itoko Kitahara [1939-] to establish the disaster history study, which is the humanities research on the social reconstruction process after historical disasters and the impact of disasters to the society. She found that a paradise to survived poor people appeared for a while after a disaster, since their ruler prepared the emergency food and housing in the early modern period (e.g., Kitahara <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1983" title="Kitahara I (1983) Ansei large earthquake and people—Social history of earthquakes. San-ichi Publishing, Tokyo, p 264 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR29" id="ref-link-section-d62103128e779">1983</a>). Ichiro Kayano [1929–2005] embarked analysis of smaller earthquakes with local materials collected by Usami (Kayano <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1987" title="Kayano I (1987) List of major earthquakes in Japan Part 1. In: Utsu T et al (eds) Encyclopedia of earthquake. Asakura Publishing, Tokyo, pp 467–501 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR28" id="ref-link-section-d62103128e782">1987</a>). While famous large earthquakes were repeatedly analyzed by various researchers, smaller events were forgotten even by the local society. Local materials allow us to reveal the detail of such a smaller event.</p><p>Takahiro Hagiwara [1908–1999] introduced interdisciplinary research for the evolution of historical seismology. He formed a group of experts on history, geology, geography, and engineering in addition to seismology. Material criticisms by historians and checks of vestiges by geologists and geographers were especially effective for some ancient and medieval earthquakes. They revealed that some events are fake. They revised epicenters and magnitudes of some historical earthquakes (e.g., Hagiwara <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1982" title="Hagiwara T (ed) (1982) Paleo earthquakes. Univ. Tokyo Press, Tokyo, p 312 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR19" id="ref-link-section-d62103128e789">1982</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1989" title="Hagiwara T (ed) (1989) Sequel of paleo earthquakes. Univ. Tokyo Press, Tokyo, p 434 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR20" id="ref-link-section-d62103128e792">1989</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1995" title="Hagiwara T (ed) (1995) Quest of paleo earthquakes. Univ. Tokyo Press, Tokyo, p 306 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR21" id="ref-link-section-d62103128e795">1995</a>). For the ancient and medieval times, Ishibashi (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2009" title="Ishibashi K (2009) Full-text databasing of historical earthquake documents, Zisin, 61, S509-517 (in Japanese). Database URL is 
 http://sakuya.ed.shizuoka.ac.jp/erice/
 
 . Accessed 18 Aug 2016" href="/articles/10.1186/s40562-017-0069-4#ref-CR24" id="ref-link-section-d62103128e798">2009</a>) formed the interdisciplinary group of seismologists, volcanologists, historians, and information scientists in 2003 to make recensions of 683 pages of the first volume of Musha’s compilation (Musha <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1941" title="Musha K (1941) Enlarged and revised edition of historical documents on earthquakes in great Japan 1. Ministry of Education, Tokyo, pp 945 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR35" id="ref-link-section-d62103128e801">1941</a>) and put them in the database available through the web. Although the database has not been completed and does not contain compilations by others, the beta version is now available on the internet.</p><h3 class="c-article__sub-heading" id="Sec5">After 1995 Hanshin-Awaji earthquake disaster</h3><p>In 1995, a part of the Mount Rokko active fault group activated, and the M7.3 earthquake caused the devastating disaster in Kobe and neighboring towns. The Headquarter of the Earthquake Research Promotion of Japan (HERP) was established in the government (now attached to the Ministry of Education, Culture, Sports, Science, and Technology of Japan: MEXT) to evaluate seismic hazard throughout Japan. They started to enhance various seismic and geodetic observations nationwide. Seismic intensities of JMA scale (Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig4">4</a>) are measured nationwide at more than four thousand sites now. Due to the tectonic setting in Japan (Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig5">5</a>), earthquakes of different types occur in and around Japan in various depths. The present dense data of seismic intensities in Japan give us useful information on seismic intensity distributions for earthquakes of known place, type, and depth (Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig6">6</a>). It allows us not only to distinguish the depth and the type of earthquakes, but also to estimate the appropriate magnitude by taking the influence of the structure on the seismic intensity distribution into account.</p><div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-4" data-title="Fig. 4"><figure><figcaption><b id="Fig4" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 4</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/4" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig4_HTML.gif?as=webp"><img aria-describedby="Fig4" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig4_HTML.gif" alt="figure 4" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-4-desc"><p>Relationship between JMA seismic intensity scale and the modified Mercalli intensity scale (modified from Utsu <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1966" title="Utsu T (1966) Regional differences in absorption of seismic waves in the upper mantle as inferred from abnormal distributions of seismic intensities. J Fac Sci Hokkaido Univ Ser 7(2):359–374" href="/articles/10.1186/s40562-017-0069-4#ref-CR69" id="ref-link-section-d62103128e831">1966</a>). Measured value in the middle is the output of the seismic intensity meter (e.g., JMA <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2016" title="JMA (2016) Tables explaining the JMA Seismic Intensity Scale. 
 http://www.jma.go.jp/jma/en/Activities/inttable.html
 
 . Accessed 27 Dec 2016" href="/articles/10.1186/s40562-017-0069-4#ref-CR26" id="ref-link-section-d62103128e834">2016</a>). The output of the seismic intensity meter is up to one decimal place. The detailed explanation of the JMA seismic intensity scale in English is in JMA (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2016" title="JMA (2016) Tables explaining the JMA Seismic Intensity Scale. 
 http://www.jma.go.jp/jma/en/Activities/inttable.html
 
 . Accessed 27 Dec 2016" href="/articles/10.1186/s40562-017-0069-4#ref-CR26" id="ref-link-section-d62103128e837">2016</a>)</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/4" data-track-dest="link:Figure4 Full size image" aria-label="Full size image figure 4" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> <div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-5" data-title="Fig. 5"><figure><figcaption><b id="Fig5" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 5</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/5" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig5_HTML.gif?as=webp"><img aria-describedby="Fig5" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig5_HTML.gif" alt="figure 5" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-5-desc"><p>Various types and depths of earthquakes in and around Japan. Very shallow earthquakes occur at active faults or near the volcanic active areas. At an active fault in Japan, an M7 earthquake occurs about once in a 1000 years to several thousand years. Shallow thrust-type interplate earthquakes occur at plate boundaries along trenches and troughs off the Pacific side of Japan. An M8 earthquake occurs about once in a 100 years to a few hundred years at one section of those. Near the outer rise of the oceanic plate, normal fault-type intraplate earthquakes occur at the shallow depth. Intermediate depth intraplate earthquakes occur in the subducting slab just beneath the Japan Archipelago. Since the stress drop of the intraplate earthquake is larger than that of the interplate earthquake, stronger short period waves are felt in remote sites</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/5" data-track-dest="link:Figure5 Full size image" aria-label="Full size image figure 5" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> <div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-6" data-title="Fig. 6"><figure><figcaption><b id="Fig6" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 6</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/6" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig6_HTML.gif?as=webp"><img aria-describedby="Fig6" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig6_HTML.gif" alt="figure 6" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-6-desc"><p>Examples of distributions of seismic intensities for various types and depths of earthquakes of the similar magnitudes. <b>a</b> Example of the interplate shallow earthquake (2005 Aug 16 M7.2). <b>b</b> Example of the intraplate intermediate depth earthquake (2003 May 26 M7.1). <b>c</b> Example of the very shallow earthquake (2008 June 14 M7.2). The area size of JMA intensity 5-upper and larger in <b>a</b> is almost equal to that of <b>c</b>, while that of <b>b</b> is far larger, although the magnitude of the event of <b>b</b> is the smallest. In <b>a</b> and <b>b</b>, the areas of JMA intensity 3 and larger extend to trench-parallel direction (the <i>vertical direction</i> of the figure), since the high-frequency waves have propagated through the slab. Although intensities in sites close to the source area are the highest in <b>c</b>, areas of the lower intensities were smaller than those of <b>a</b> and <b>b</b>. The area of intensity 2 of <b>a</b> in the southwestern part of Japan is the largest. All of these features reflect the difference in the amount of stress drop depending on the seismic source type, the difference in the structure that seismic waves have propagated, and the difference in the rate of change in hypocentral distances on the ground surface due to the depth of the source</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/6" data-track-dest="link:Figure6 Full size image" aria-label="Full size image figure 6" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> <p>Historical earthquakes have been only assigned epicenters and magnitudes from simple isoseismal maps. As the part of HERP promotion, we started to analyze historical earthquakes systematically to make a catalogue of hypocenters and magnitudes with the aid of dense data of seismic intensities accumulated after 1995. If we can accurately identify each location of seismic intensities of a historical earthquake left in historical documents, we can estimate the depth and type of that event by comparison with distributions of seismic intensities of the recent similar events. Since 1997, we have been accumulated pin-point seismic intensities for 169 target destructive earthquakes, which occurred from 1586 to 1884, from the beginning of the early modern period till the start of the modern measurement of seismic intensities by the Meiji government. We have already estimated seismic intensities of 8700 places for 134 earthquakes, which are four-fifths of the target events (Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig7">7</a>). In addition to places, we also revealed damaged areas for many earthquakes. With those data, we estimated magnitudes, epicenters, and depths of 134 events (Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig8">8</a>).</p><div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-7" data-title="Fig. 7"><figure><figcaption><b id="Fig7" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 7</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/7" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig7_HTML.gif?as=webp"><img aria-describedby="Fig7" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig7_HTML.gif" alt="figure 7" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-7-desc"><p>Estimated seismic intensities of 8700 places for 134 earthquakes in the period from 1586 to 1872. JMA intensity scale (0–7, Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig4">4</a>) is used. Hypocenters of these events are shown in Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig8">8</a> </p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/7" data-track-dest="link:Figure7 Full size image" aria-label="Full size image figure 7" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> <div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-8" data-title="Fig. 8"><figure><figcaption><b id="Fig8" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 8</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/8" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig8_HTML.gif?as=webp"><img aria-describedby="Fig8" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig8_HTML.gif" alt="figure 8" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-8-desc"><p>Hypocenters of 134 examined earthquakes in the period from 1586 to 1872. For M7.5 or larger events, source regions are shown except for 1605 and 1614 events, of which source areas are unclear and tentative epicenters were shown in the eastern part of the Nankai trough. The symbol size is larger for a larger M. The symbol color is warmer for a shallower event</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/8" data-track-dest="link:Figure8 Full size image" aria-label="Full size image figure 8" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> <p>The precise examination of the intensity distributions of some large historical earthquakes revealed the important differences between some interplate major earthquakes, which were believed to be repeating at the same source area, and thought to be typical characteristic earthquakes. The focal area of the 1923 Taisho Kanto earthquake (M7.9: see “<a data-track="click" data-track-label="link" data-track-action="section anchor" href="/articles/10.1186/s40562-017-0069-4#Sec8">Appendix</a>” for the name of Japanese major earthquakes) has been believed to be a western subset of the focal area of the 1703 Genroku earthquake (M8.1). However, the intensities in the southwestern Japan and places in the Izu Peninsula of the 1703 event are smaller than those in 1923. We revealed that the western most part of the 1923 source area did not move in 1703 (Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig9">9</a>; Matsu’ura and Nakamura <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2016" title="Matsu’ura RS, Nakamura M (2016) An innovative fact on the focal area of 1703 Genroku earthquake from the detailed examination of seismic intensities. Hist Seismol 31:9–16 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR30" id="ref-link-section-d62103128e992">2016</a>). The focal area of the 1707 Hoei earthquake (M8.6) has been thought to be the simple summation of focal areas of the 1854 Ansei Tokai (M8.4) and Ansei Nankai (M8.4) earthquakes. However, smaller intensities around the Suruga Bay in addition to smaller intensities of Kanto district in 1707 show that the shaking in those areas is weaker than that in 1854, although the magnitude of the 1707 event is larger (Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig10">10</a>; Matsu’ura et al. <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2011a" title="Matsu’ura RS, Nakamura M, Karakama I (2011a) A new focal area of 1707 Hoei earthquake from the detailed examination of seismic intensities. Hist Seismol. 26:89–90 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR31" id="ref-link-section-d62103128e998">2011a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Matsu’ura RS, Nakamura M, Matsuda T (2011b) On the crustal deformation after the 1707 Hoei earthquake. In: Proc Seismol Soc Jpn Fall 2011, D11-08, p 120 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR32" id="ref-link-section-d62103128e1002">b</a>). The crustal movements in the regions east from the Lake Hamana, and the southwestern part of Shikoku were also smaller in 1707 than those in 1854 (e.g., Shishikura and Namegaya <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2011" title="Shishikura M, Namegaya Y (2011) Crustal movement at the Ashizuri point due to Hoei, Ansei, and Showa Nankai earthquakes. Hist Seismol 26:88 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR54" id="ref-link-section-d62103128e1005">2011</a>; Matsu’ura et al. <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2011a" title="Matsu’ura RS, Nakamura M, Karakama I (2011a) A new focal area of 1707 Hoei earthquake from the detailed examination of seismic intensities. Hist Seismol. 26:89–90 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR31" id="ref-link-section-d62103128e1008">2011a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Matsu’ura RS, Nakamura M, Matsuda T (2011b) On the crustal deformation after the 1707 Hoei earthquake. In: Proc Seismol Soc Jpn Fall 2011, D11-08, p 120 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR32" id="ref-link-section-d62103128e1011">b</a>). The west and east ends of the focal area of the 1707 Hoei earthquake are different from both ends of the combined area of two 1854 Ansei earthquakes. Those examples tell us that even such major interplate events occur in not exactly the same source area at each time. Actual focal areas vary by time. We should be very careful to prepare for the next event and should not expect only the same phenomena of some historical events will occur next time.</p><div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-9" data-title="Fig. 9"><figure><figcaption><b id="Fig9" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 9</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/9" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig9_HTML.gif?as=webp"><img aria-describedby="Fig9" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig9_HTML.gif" alt="figure 9" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-9-desc"><p>Intensity distribution of the 1703 Genroku earthquake (M8.1) and the 1923 Taisho Kanto earthquake (M7.9). Both earthquakes occurred along Sagami Trough. Intensities of 1703 after Matsu’ura and Nakamura (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2016" title="Matsu’ura RS, Nakamura M (2016) An innovative fact on the focal area of 1703 Genroku earthquake from the detailed examination of seismic intensities. Hist Seismol 31:9–16 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR30" id="ref-link-section-d62103128e1024">2016</a>), and those of 1923 after JMA (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1969" title="JMA (1969) Seismic observation guidelines (references). JMA, Tokyo, p 245 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR25" id="ref-link-section-d62103128e1027">1969</a>). Intensities in the west of the Izu Peninsula are apparently smaller than those of 1923. Intensities in areas around Kyoto and Osaka of 1703 are also smaller than those of 1923, even though we consider the difference of the occurrence times of these events. See Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig1">1</a> and “<a data-track="click" data-track-label="link" data-track-action="section anchor" href="/articles/10.1186/s40562-017-0069-4#Sec8">Appendix</a>” for place and earthquake names</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/9" data-track-dest="link:Figure9 Full size image" aria-label="Full size image figure 9" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> <div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-10" data-title="Fig. 10"><figure><figcaption><b id="Fig10" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 10</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/10" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig10_HTML.gif?as=webp"><img aria-describedby="Fig10" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig10_HTML.gif" alt="figure 10" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-10-desc"><p>Intensity distribution of the 1707 Hoei earthquake (M8.6) and the 1854 Ansei Tokai (M8.4) and Ansei Nankai (M8.4) earthquakes. These earthquakes occurred along Nankai Trough. Intensities of 1707 are after Matsu’ura et al. (<a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 2011a" title="Matsu’ura RS, Nakamura M, Karakama I (2011a) A new focal area of 1707 Hoei earthquake from the detailed examination of seismic intensities. Hist Seismol. 26:89–90 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR31" id="ref-link-section-d62103128e1055">2011a</a>, <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference b" title="Matsu’ura RS, Nakamura M, Matsuda T (2011b) On the crustal deformation after the 1707 Hoei earthquake. In: Proc Seismol Soc Jpn Fall 2011, D11-08, p 120 (in Japanese)
 " href="/articles/10.1186/s40562-017-0069-4#ref-CR32" id="ref-link-section-d62103128e1058">b</a>), and those of 1854 are estimated intensities of 4 and larger for regions such as cities and towns (Usami and Daiwa <a data-track="click" data-track-action="reference anchor" data-track-label="link" data-test="citation-ref" aria-label="Reference 1994" title="Usami T, Daiwa Exploration and Consulting Co. Ltd. (1994) Intensity distribution and isoseismal maps of historical earthquakes in Japan. Japan Electric Association, Tokyo, pp 647" href="/articles/10.1186/s40562-017-0069-4#ref-CR67" id="ref-link-section-d62103128e1061">1994</a>) instead of pin-point places. For 1854, larger intensities of Tokai or Nankai earthquakes are plotted on the upper layer. See Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig1">1</a> and “<a data-track="click" data-track-label="link" data-track-action="section anchor" href="/articles/10.1186/s40562-017-0069-4#Sec8">Appendix</a>” for place and earthquake names</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/10" data-track-dest="link:Figure10 Full size image" aria-label="Full size image figure 10" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> </div></div></section><section data-title="Discussion"><div class="c-article-section" id="Sec6-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="Sec6">Discussion</h2><div class="c-article-section__content" id="Sec6-content"><p>Figure <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig2">2</a> shows the number of recognized historical earthquakes in Japan for the period from 416 <span class="u-small-caps">ad</span> to 1872 by each list. For the ancient period, ambiguous events were disappeared by the middle of the twentieth century. For the medieval period, the materials are so rare, and the number of recognized events has not been changed largely. For the early modern period, increase of collected materials resulted in increase of events and epicenters estimated. The comparison of two distributions in Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig3">3</a> tells that the epicenters of historical earthquakes in the recent list are rather concentrated around the modern known events, and estimated magnitudes are usually smaller than those assigned by Kawasumi.</p><p>The early history of Japanese historical seismology overlaps with the history of seismology of the world, since the modern seismology was born in Japan, where many young Occidental scientists felt earthquakes for the first time in their life. The historical seismology in Japan has been studied mainly by seismologists as science. Because Japanese seismology has been strongly influenced by occasional earthquakes, the research base of historical seismology became stronger or weaker from time to time. After HERP was established in 1995, the dense observation of instrumental seismic intensities was realized. It enabled us to study details of historical earthquakes, when we prepare precise locations of damage and their degrees from the historical documents.</p><p>Although we have 35 events left to be analyzed, it is worth to compare the distributions of 8700 intensities in the early modern period with intensities densely recorded since 1996 April in Japan. Figure <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig11">11</a> shows all places where the JMA intensities of 5 or above were experienced at least once from 1885 till 2016 August. The larger intensity is plotted in the upper layer. From 1885 to 1996 March, intensities were reported only at JMA observatories. In order to compare that term with the distribution plotted in Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig7">7</a>, we need to estimate places experienced high intensities in modern events with the same manner we did for the historical earthquakes. Despite we consider that lack of high intensities in Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig11">11</a>, there are places which experienced the intensity 6 or above after 1885 and not in the period from 1586 to 1884. In order to assess the maximum intensity of a place within the next several decades, our historical and modern catalogue since 1586 are not enough, since there are fatal earthquakes of a thousand and longer recurrence time such as a very shallow inland earthquake and a gigantic M9 interplate event like the one in 2011 at the area off Tohoku district. We have to include much older historical earthquakes, and activity histories of active faults and huge tsunamis from paleoseismological surveys.</p><div class="c-article-section__figure js-c-reading-companion-figures-item" data-test="figure" data-container-section="figure" id="figure-11" data-title="Fig. 11"><figure><figcaption><b id="Fig11" class="c-article-section__figure-caption" data-test="figure-caption-text">Fig. 11</b></figcaption><div class="c-article-section__figure-content"><div class="c-article-section__figure-item"><a class="c-article-section__figure-link" data-test="img-link" data-track="click" data-track-label="image" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/11" rel="nofollow"><picture><source type="image/webp" srcset="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig11_HTML.gif?as=webp"><img aria-describedby="Fig11" src="//media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs40562-017-0069-4/MediaObjects/40562_2017_69_Fig11_HTML.gif" alt="figure 11" loading="lazy"></picture></a></div><div class="c-article-section__figure-description" data-test="bottom-caption" id="figure-11-desc"><p>Observed highest seismic intensities of Japan since 1885 till August 2016. The highest intensities reported at JMA observatories from 1885 to March 1996, and the highest instrumental seismic intensities recorded from April 1996 to August 2016 are shown. The higher intensities are plotted on the upper layer. JMA intensity 7, which is the highest, appears only some places near the source of shallow large earthquakes, and only one place in Tohoku district due to the 2011 off Tohoku district earthquake of M9.0</p></div></div><div class="u-text-right u-hide-print"><a class="c-article__pill-button" data-test="article-link" data-track="click" data-track-label="button" data-track-action="view figure" href="/articles/10.1186/s40562-017-0069-4/figures/11" data-track-dest="link:Figure11 Full size image" aria-label="Full size image figure 11" rel="nofollow"><span>Full size image</span><svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-chevron-right-small"></use></svg></a></div></figure></div> </div></div></section><section data-title="Conclusions"><div class="c-article-section" id="Sec7-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="Sec7">Conclusions</h2><div class="c-article-section__content" id="Sec7-content"><p>Since the seismicity in Japan is really high, Japanese interest in historical seismicity can be traced back to the nineth century. The modern historical seismology started in 1878 here in Japan. Since then, with some weak terms, research bases for historical seismology have been accumulated mainly by seismologists in Japan. Recently, historians who study historical disasters are increasing. We now have the active interdisciplinary society of the historical seismology. Before this century, fake and duplication of historical events had been reduced. We have a lot of compilations of historical documents related to earthquakes. We can use the database of historical materials for ancient and medieval periods through the web. We have the epicenter catalogue of historical earthquakes. Japanese seismologists have rather easy approaches to historical seismology.</p><p>We also have pin-point intensity data for four-fifths of analyzable events of the early modern period with estimated focal depths and source types. Detailed examination of some early modern events tells that active source areas of the major interplate earthquakes show some variations each time, although they have been believed to be characteristic and repeating. We have to continue the detailed analysis for the remaining one-fifth of the early modern events, in addition to compile places where they experienced high intensities from 1885 to 1996. Historical seismology only can cover recent 1400 years in Japan. We should cope with events with a 1000 years and longer recursive intervals, using paleoseismology in addition to historical seismology.</p></div></div></section> <section data-title="Abbreviations"><div class="c-article-section" id="abbreviations-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="abbreviations">Abbreviations</h2><div class="c-article-section__content" id="abbreviations-content"><dl class="c-abbreviation_list"><dt class="c-abbreviation_list__term u-text-bold u-float-left u-pr-16" style="min-width:50px;"><dfn>ERI:</dfn></dt><dd class="c-abbreviation_list__description u-mb-24"> <p>Earthquake Research Institute, University of Tokyo</p> </dd><dt class="c-abbreviation_list__term u-text-bold u-float-left u-pr-16" style="min-width:50px;"><dfn>GHQ:</dfn></dt><dd class="c-abbreviation_list__description u-mb-24"> <p>General Headquarters, the Supreme Commander for the Allied Powers</p> </dd><dt class="c-abbreviation_list__term u-text-bold u-float-left u-pr-16" style="min-width:50px;"><dfn>HERP:</dfn></dt><dd class="c-abbreviation_list__description u-mb-24"> <p>The Headquarter of the Earthquake Research Promotion of Japan</p> </dd><dt class="c-abbreviation_list__term u-text-bold u-float-left u-pr-16" style="min-width:50px;"><dfn>JMA:</dfn></dt><dd class="c-abbreviation_list__description u-mb-24"> <p>Japan Meteorological Agency</p> </dd><dt class="c-abbreviation_list__term u-text-bold u-float-left u-pr-16" style="min-width:50px;"><dfn>MEXT:</dfn></dt><dd class="c-abbreviation_list__description u-mb-24"> <p>The Ministry of Education, Culture, Sports, Science, and Technology of Japan</p> </dd><dt class="c-abbreviation_list__term u-text-bold u-float-left u-pr-16" style="min-width:50px;"><dfn>Mk:</dfn></dt><dd class="c-abbreviation_list__description u-mb-24"> <p>Kawasumi’s Magnitude</p> </dd><dt class="c-abbreviation_list__term u-text-bold u-float-left u-pr-16" style="min-width:50px;"><dfn>OCR:</dfn></dt><dd class="c-abbreviation_list__description u-mb-24"> <p>optical character recognition</p> </dd><dt class="c-abbreviation_list__term u-text-bold u-float-left u-pr-16" style="min-width:50px;"><dfn>SSJ:</dfn></dt><dd class="c-abbreviation_list__description u-mb-24"> <p>Seismological Society of Japan</p> </dd></dl></div></div></section><div id="MagazineFulltextArticleBodySuffix"><section aria-labelledby="Bib1" data-title="References"><div class="c-article-section" id="Bib1-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="Bib1">References</h2><div class="c-article-section__content" id="Bib1-content"><div data-container-section="references"><ul class="c-article-references" data-track-component="outbound reference" data-track-context="references section"><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR1">Earthquake Research Institute (1981) New collection of historical materials on earthquakes in Japan, vol 1. ERI, Tokyo, pp 193 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 1" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1981"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR2">Earthquake Research Institute (1982a) New collection of historical materials on earthquakes in Japan, vol 2. ERI, Tokyo, pp 575 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 2" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1982"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR3">Earthquake Research Institute (1982b) New collection of historical materials on earthquakes in Japan, vol S2. ERI, Tokyo, pp 290 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 3" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1982"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR4">Earthquake Research Institute (1983a) New collection of historical materials on earthquakes in Japan, vol 3. ERI, Tokyo, pp 961 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 4" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1983"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR5">Earthquake Research Institute (1983b) New collection of historical materials on earthquakes in Japan, vol S3. ERI, Tokyo, pp 590 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 5" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1983"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR6">Earthquake Research Institute (1984a) New collection of historical materials on earthquakes in Japan, vol 4. ERI, Tokyo, pp 870 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 6" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1984"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR7">Earthquake Research Institute (1984b) New collection of historical materials on earthquakes in Japan, vol S4. ERI, Tokyo, pp 582 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 7" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1984"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR8">Earthquake Research Institute (1985a) New collection of historical materials on earthquakes in Japan, vol 5. ERI, Tokyo, pp 599 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 8" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1985"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR9">Earthquake Research Institute (1985b) New collection of historical materials on earthquakes in Japan, vol S5-1. ERI, Tokyo, pp 403 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 9" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1985"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR10">Earthquake Research Institute (1986a) New collection of historical materials on earthquakes in Japan, vol S5-3. ERI, Tokyo, pp 293 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 10" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1986"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR11">Earthquake Research Institute (1986b) New collection of historical materials on earthquakes in Japan, vol S5-4. ERI, Tokyo, pp 667 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 11" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1986"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR12">Earthquake Research Institute (1987a) New collection of historical materials on earthquakes in Japan, vol S5-2-1&2. ERI, Tokyo, pp 1931 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 12" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1987"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR13">Earthquake Research Institute (1987b) New collection of historical materials on earthquakes in Japan, vol S5-5-1&2. ERI, Tokyo, pp 2528 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 13" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1987"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR14">Earthquake Research Institute (1988) New collection of historical materials on earthquakes in Japan, vol S5-6-1&2. ERI, Tokyo, pp 1834 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 14" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1988"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR15">Earthquake Research Institute (1989a) New collection of historical materials on earthquakes in Japan, Suppl. ERI, Tokyo, pp 1222 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 15" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1989"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR16">Earthquake Research Institute (1989b) New collection of historical materials on earthquakes in Japan, Suppl S. ERI, Tokyo, pp 992 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 16" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1989"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR17">Earthquake Research Institute (1993) New collection of historical materials on earthquakes in Japan, Add. Suppl. ERI, Tokyo, pp 1043 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 17" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1993"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR18">Earthquake Research Institute (1994) New collection of historical materials on earthquakes in Japan, Add. Suppl. S. ERI, Tokyo, pp 1228 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 18" href="http://scholar.google.com/scholar_lookup?&title=New%20collection%20of%20historical%20materials%20on%20earthquakes%20in%20Japan&publication_year=1228"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR19">Hagiwara T (ed) (1982) Paleo earthquakes. Univ. Tokyo Press, Tokyo, p 312 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 19" href="http://scholar.google.com/scholar_lookup?&title=Paleo%20earthquakes&publication_year=1982"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR20">Hagiwara T (ed) (1989) Sequel of paleo earthquakes. Univ. Tokyo Press, Tokyo, p 434 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 20" href="http://scholar.google.com/scholar_lookup?&title=Sequel%20of%20paleo%20earthquakes&publication_year=1989"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR21">Hagiwara T (ed) (1995) Quest of paleo earthquakes. Univ. Tokyo Press, Tokyo, p 306 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 21" href="http://scholar.google.com/scholar_lookup?&title=Quest%20of%20paleo%20earthquakes&publication_year=1995"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR22">Hattori I (1878) Destructive earthquakes in Japan. Trans Asiatic Soc Jpn 6:249–275</p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 22" href="http://scholar.google.com/scholar_lookup?&title=Destructive%20earthquakes%20in%20Japan&journal=Trans%20Asiatic%20Soc%20Jpn&volume=6&pages=249-275&publication_year=1878&author=Hattori%2CI"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR23">Ishibashi K (1976) Reappraisal of the major earthquake that is expected in the Tokai region—a large earthquake in Suruga Bay. Proc Seismol Soc Jpn 2:30–34 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 23" href="http://scholar.google.com/scholar_lookup?&title=Reappraisal%20of%20the%20major%20earthquake%20that%20is%20expected%20in%20the%20Tokai%20region%E2%80%94a%20large%20earthquake%20in%20Suruga%20Bay&journal=Proc%20Seismol%20Soc%20Jpn&volume=2&pages=30-34&publication_year=1976&author=Ishibashi%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR24">Ishibashi K (2009) Full-text databasing of historical earthquake documents, Zisin, 61, S509-517 (in Japanese). Database URL is <a href="http://sakuya.ed.shizuoka.ac.jp/erice/" data-track="click_references" data-track-action="external reference" data-track-value="external reference" data-track-label="http://sakuya.ed.shizuoka.ac.jp/erice/">http://sakuya.ed.shizuoka.ac.jp/erice/</a>. Accessed 18 Aug 2016</p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR25">JMA (1969) Seismic observation guidelines (references). JMA, Tokyo, p 245 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 25" href="http://scholar.google.com/scholar_lookup?&title=Seismic%20observation%20guidelines%20%28references%29&publication_year=1969"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR26">JMA (2016) Tables explaining the JMA Seismic Intensity Scale. <a href="http://www.jma.go.jp/jma/en/Activities/inttable.html" data-track="click_references" data-track-action="external reference" data-track-value="external reference" data-track-label="http://www.jma.go.jp/jma/en/Activities/inttable.html">http://www.jma.go.jp/jma/en/Activities/inttable.html</a>. Accessed 27 Dec 2016</p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR27">Kawasumi H (1951) Measures of earthquake danger and expectancy of maximum intensity throughout Japan as inferred from the seismic activity in historical times. Bull Earthq Res Inst 29:469–482</p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 27" href="http://scholar.google.com/scholar_lookup?&title=Measures%20of%20earthquake%20danger%20and%20expectancy%20of%20maximum%20intensity%20throughout%20Japan%20as%20inferred%20from%20the%20seismic%20activity%20in%20historical%20times&journal=Bull%20Earthq%20Res%20Inst&volume=29&pages=469-482&publication_year=1951&author=Kawasumi%2CH"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR28">Kayano I (1987) List of major earthquakes in Japan Part 1. In: Utsu T et al (eds) Encyclopedia of earthquake. Asakura Publishing, Tokyo, pp 467–501 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 28" href="http://scholar.google.com/scholar_lookup?&title=List%20of%20major%20earthquakes%20in%20Japan%20Part%201&pages=467-501&publication_year=1987&author=Kayano%2CI"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR29">Kitahara I (1983) Ansei large earthquake and people—Social history of earthquakes. San-ichi Publishing, Tokyo, p 264 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 29" href="http://scholar.google.com/scholar_lookup?&title=Ansei%20large%20earthquake%20and%20people%E2%80%94Social%20history%20of%20earthquakes&publication_year=1983&author=Kitahara%2CI"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR30">Matsu’ura RS, Nakamura M (2016) An innovative fact on the focal area of 1703 Genroku earthquake from the detailed examination of seismic intensities. Hist Seismol 31:9–16 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 30" href="http://scholar.google.com/scholar_lookup?&title=An%20innovative%20fact%20on%20the%20focal%20area%20of%201703%20Genroku%20earthquake%20from%20the%20detailed%20examination%20of%20seismic%20intensities&journal=Hist%20Seismol&volume=31&pages=9-16&publication_year=2016&author=Matsu%E2%80%99ura%2CRS&author=Nakamura%2CM"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR31">Matsu’ura RS, Nakamura M, Karakama I (2011a) A new focal area of 1707 Hoei earthquake from the detailed examination of seismic intensities. Hist Seismol. 26:89–90 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 31" href="http://scholar.google.com/scholar_lookup?&title=A%20new%20focal%20area%20of%201707%20Hoei%20earthquake%20from%20the%20detailed%20examination%20of%20seismic%20intensities&journal=Hist%20Seismol.&volume=26&pages=89-90&publication_year=2011&author=Matsu%E2%80%99ura%2CRS&author=Nakamura%2CM&author=Karakama%2CI"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR32">Matsu’ura RS, Nakamura M, Matsuda T (2011b) On the crustal deformation after the 1707 Hoei earthquake. In: Proc Seismol Soc Jpn Fall 2011, D11-08, p 120 <b>(in Japanese)</b> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR33">Milne J (1881) Notes on the great earthquakes of Japan. Trans Seismol Soc Jpn 3:65–102</p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 33" href="http://scholar.google.com/scholar_lookup?&title=Notes%20on%20the%20great%20earthquakes%20of%20Japan&journal=Trans%20Seismol%20Soc%20Jpn&volume=3&pages=65-102&publication_year=1881&author=Milne%2CJ"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR34">Milne J (1882) The distribution of seismic activity in Japan. Trans Seismol Soc Jpn 4:1–30</p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 34" href="http://scholar.google.com/scholar_lookup?&title=The%20distribution%20of%20seismic%20activity%20in%20Japan&journal=Trans%20Seismol%20Soc%20Jpn&volume=4&pages=1-30&publication_year=1882&author=Milne%2CJ"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR35">Musha K (1941) Enlarged and revised edition of historical documents on earthquakes in great Japan 1. Ministry of Education, Tokyo, pp 945 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 35" href="http://scholar.google.com/scholar_lookup?&title=Enlarged%20and%20revised%20edition%20of%20historical%20documents%20on%20earthquakes%20in%20great%20Japan%201&publication_year=1941&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR36">Musha K (1943a) Enlarged and revised edition of historical documents on earthquakes in great Japan 2. Ministry of Education, Tokyo, pp 754 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 36" href="http://scholar.google.com/scholar_lookup?&title=Enlarged%20and%20revised%20edition%20of%20historical%20documents%20on%20earthquakes%20in%20great%20Japan%202&publication_year=1943&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR37">Musha K (1943b) Enlarged and revised edition of historical documents on earthquakes in great Japan 3. Ministry of Education, Tokyo, pp 933 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 37" href="http://scholar.google.com/scholar_lookup?&title=Enlarged%20and%20revised%20edition%20of%20historical%20documents%20on%20earthquakes%20in%20great%20Japan%203&publication_year=1943&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR38">Musha K (1950a) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 9:1–19 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 38" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=9&pages=1-19&publication_year=1950&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR39">Musha K (1950b) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 10:20–51 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 39" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=10&pages=20-51&publication_year=1950&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR40">Musha K (1950c) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 11:52–83 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 40" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=11&pages=52-83&publication_year=1950&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR41">Musha K (1950d) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 12:84–115 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 41" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=12&pages=84-115&publication_year=1950&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR42">Musha K (1950e) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 13:116–1147 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 42" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=13&pages=116-1147&publication_year=1950&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR43">Musha K (1950f) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 14:148–179 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 43" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=14&pages=148-179&publication_year=1950&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR44">Musha K (1951a) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 15:180–203 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 44" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=15&pages=180-203&publication_year=1951&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR45">Musha K (1951b) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 16:204–236 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 45" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=16&pages=204-236&publication_year=1951&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR46">Musha K (1951c) Historical documents on earthquakes in Japan. Mainichi Newspapers, Tokyo, pp 757 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 46" href="http://scholar.google.com/scholar_lookup?&title=Historical%20documents%20on%20earthquakes%20in%20Japan&publication_year=1951&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR47">Musha K (1953a) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 17:237–266 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 47" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=17&pages=237-266&publication_year=1953&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR48">Musha K (1953b) Chronological list of large earthquakes in and around Japan. Assoc Earthq Disaster Prev 18:267–298 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 48" href="http://scholar.google.com/scholar_lookup?&title=Chronological%20list%20of%20large%20earthquakes%20in%20and%20around%20Japan&journal=Assoc%20Earthq%20Disaster%20Prev&volume=18&pages=267-298&publication_year=1953&author=Musha%2CK"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR49">Naumann E (1878) Über erdbeben und vulcanausbrüche in Japan. Mitteilungen der Deutschen Gesellschaft für Natur-und Völkerkunde Ostasiens 2(15):163–216 <b>(in German)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 49" href="http://scholar.google.com/scholar_lookup?&title=%C3%9Cber%20erdbeben%20und%20vulcanausbr%C3%BCche%20in%20Japan&journal=Mitteilungen%20der%20Deutschen%20Gesellschaft%20f%C3%BCr%20Natur-und%20V%C3%B6lkerkunde%20Ostasiens&volume=2&issue=15&pages=163-216&publication_year=1878&author=Naumann%2CE"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR50">Ogashima H (1894) Japanese history of disaster and extraordinary. Mining Institute of Japan, Tokyo, pp 845 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 50" href="http://scholar.google.com/scholar_lookup?&title=Japanese%20history%20of%20disaster%20and%20extraordinary&publication_year=1894&author=Ogashima%2CH"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR51">Omori F (1913) Overview of large earthquakes of Japan. Rep Earthq Inv. Com 68B:1–180 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 51" href="http://scholar.google.com/scholar_lookup?&title=Overview%20of%20large%20earthquakes%20of%20Japan&journal=Rep%20Earthq%20Inv.%20Com&volume=68B&pages=1-180&publication_year=1913&author=Omori%2CF"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR52">Omori F (1919) Summary list of large earthquakes of Japan. Rep Earthq Inv Com 88B:1–71 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 52" href="http://scholar.google.com/scholar_lookup?&title=Summary%20list%20of%20large%20earthquakes%20of%20Japan&journal=Rep%20Earthq%20Inv%20Com&volume=88B&pages=1-71&publication_year=1919&author=Omori%2CF"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR53">Sekiya S (1899) The earthquake investigation committee catalogue of Japanese earthquakes. J Coll Sci Imp Univ Tokyo 11:315–388</p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 53" href="http://scholar.google.com/scholar_lookup?&title=The%20earthquake%20investigation%20committee%20catalogue%20of%20Japanese%20earthquakes&journal=J%20Coll%20Sci%20Imp%20Univ%20Tokyo&volume=11&pages=315-388&publication_year=1899&author=Sekiya%2CS"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR54">Shishikura M, Namegaya Y (2011) Crustal movement at the Ashizuri point due to Hoei, Ansei, and Showa Nankai earthquakes. Hist Seismol 26:88 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 54" href="http://scholar.google.com/scholar_lookup?&title=Crustal%20movement%20at%20the%20Ashizuri%20point%20due%20to%20Hoei%2C%20Ansei%2C%20and%20Showa%20Nankai%20earthquakes&journal=Hist%20Seismol&volume=26&publication_year=2011&author=Shishikura%2CM&author=Namegaya%2CY"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR70">Sugawara M (892) Earthquakes, Ruiju Kokushi Vol. 171, Disaster 5. Japanese Goverment <b>(in Japanese)</b> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR55">Takahasi R (1951) An estimate of future tsunami damage along the Pacific coast of Japan. Bull Earthq Res Inst 29:71–95</p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 56" href="http://scholar.google.com/scholar_lookup?&title=An%20estimate%20of%20future%20tsunami%20damage%20along%20the%20Pacific%20coast%20of%20Japan&journal=Bull%20Earthq%20Res%20Inst&volume=29&pages=71-95&publication_year=1951&author=Takahasi%2CR"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR56">Tayama M (1904) Historical documents on earthquakes in great Japan. Rep Earthq Inv Com, 46A, 1-606, B, 1-640 <b>(in Japanese)</b> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR57">Usami T (1975) Materials for comprehensive list of Japanese destructive earthquakes. Univ Tokyo Press, Tokyo, p 327 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 58" href="http://scholar.google.com/scholar_lookup?&title=Materials%20for%20comprehensive%20list%20of%20Japanese%20destructive%20earthquakes&publication_year=1975&author=Usami%2CT"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR58">Usami T (1987) Materials for comprehensive list of Japanese destructive earthquakes [New edition]. Univ Tokyo Press, Tokyo, p 434 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 59" href="http://scholar.google.com/scholar_lookup?&title=Materials%20for%20comprehensive%20list%20of%20Japanese%20destructive%20earthquakes%20%5BNew%20edition%5D&publication_year=1987&author=Usami%2CT"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR59">Usami T (1996) Materials for comprehensive list of Japanese destructive earthquakes [Revised and enlarged edition] 416-1995. Univ Tokyo Press, Tokyo, p 493 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 60" href="http://scholar.google.com/scholar_lookup?&title=Materials%20for%20comprehensive%20list%20of%20Japanese%20destructive%20earthquakes%20%5BRevised%20and%20enlarged%20edition%5D%20416-1995&publication_year=1996&author=Usami%2CT"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR60">Usami T (1998) Addendum of historical documents on earthquakes in Japan, 1. Japan Electric Association, Tokyo, pp 512 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 61" href="http://scholar.google.com/scholar_lookup?&title=Addendum%20of%20historical%20documents%20on%20earthquakes%20in%20Japan&publication_year=1998&author=Usami%2CT"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR61">Usami T (1999) Addendum of historical documents on earthquakes in Japan, S. Japan Electric Association, Tokyo, pp 1045 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 62" href="http://scholar.google.com/scholar_lookup?&title=Addendum%20of%20historical%20documents%20on%20earthquakes%20in%20Japan&publication_year=1999&author=Usami%2CT"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR62">Usami T (2002) Addendum of historical documents on earthquakes in Japan, 2, T. Usami, Tokyo, pp 583 <b>(in Japanese)</b> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR63">Usami T (2003) Materials for comprehensive list of Japanese destructive earthquakes [Latest Edition] [416]-2001. Univ Tokyo Press, Tokyo, p 605 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 64" href="http://scholar.google.com/scholar_lookup?&title=Materials%20for%20comprehensive%20list%20of%20Japanese%20destructive%20earthquakes%20%5BLatest%20Edition%5D%20%5B416%5D-2001&publication_year=2003&author=Usami%2CT"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR64">Usami T (2005) Addendum of historical documents on earthquakes in Japan, 3, T. Usami, Tokyo, pp 814 <b>(in Japanese)</b> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR65">Usami T (2008) Addendum of historical documents on earthquakes in Japan, 4–1&2, T. Tokyo, Usami, p 1874 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 66" href="http://scholar.google.com/scholar_lookup?&title=Addendum%20of%20historical%20documents%20on%20earthquakes%20in%20Japan%2C%204%E2%80%931%262%2C%20T&publication_year=2008&author=Usami%2CT"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR66">Usami T (2012) Addendum of historical documents on earthquakes in Japan, 5-1&2, T. Usami, Tokyo, pp 1526 <b>(in Japanese)</b> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR67">Usami T, Daiwa Exploration and Consulting Co. Ltd. (1994) Intensity distribution and isoseismal maps of historical earthquakes in Japan. Japan Electric Association, Tokyo, pp 647</p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 68" href="http://scholar.google.com/scholar_lookup?&title=Intensity%20distribution%20and%20isoseismal%20maps%20of%20historical%20earthquakes%20in%20Japan&publication_year=1994&author=Usami%2CT"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR68">Usami T, Ishii H, Imamura T, Takemura M, Matsu’ura RS (2013) Materials for comprehensive list of Japanese destructive earthquakes 599-2012 [Revised 2013]. Univ Tokyo Press, Tokyo, p 694 <b>(in Japanese)</b> </p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 69" href="http://scholar.google.com/scholar_lookup?&title=Materials%20for%20comprehensive%20list%20of%20Japanese%20destructive%20earthquakes%20599-2012%20%5BRevised%202013%5D&publication_year=2013&author=Usami%2CT&author=Ishii%2CH&author=Imamura%2CT&author=Takemura%2CM&author=Matsu%E2%80%99ura%2CRS"> Google Scholar</a> </p></li><li class="c-article-references__item js-c-reading-companion-references-item"><p class="c-article-references__text" id="ref-CR69">Utsu T (1966) Regional differences in absorption of seismic waves in the upper mantle as inferred from abnormal distributions of seismic intensities. J Fac Sci Hokkaido Univ Ser 7(2):359–374</p><p class="c-article-references__links u-hide-print"><a data-track="click_references" data-track-action="google scholar reference" data-track-value="google scholar reference" data-track-label="link" data-track-item_id="link" rel="nofollow noopener" aria-label="Google Scholar reference 70" href="http://scholar.google.com/scholar_lookup?&title=Regional%20differences%20in%20absorption%20of%20seismic%20waves%20in%20the%20upper%20mantle%20as%20inferred%20from%20abnormal%20distributions%20of%20seismic%20intensities&journal=J%20Fac%20Sci%20Hokkaido%20Univ%20Ser&volume=7&issue=2&pages=359-374&publication_year=1966&author=Utsu%2CT"> Google Scholar</a> </p></li></ul><p class="c-article-references__download u-hide-print"><a data-track="click" data-track-action="download citation references" data-track-label="link" rel="nofollow" href="https://citation-needed.springer.com/v2/references/10.1186/s40562-017-0069-4?format=refman&flavour=references">Download references<svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-download-medium"></use></svg></a></p></div></div></div></section></div><section data-title="Acknowledgements"><div class="c-article-section" id="Ack1-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="Ack1">Acknowledgements</h2><div class="c-article-section__content" id="Ack1-content"><p>This study was supported by MEXT, under contracts to support the analysis and evaluation of earthquakes for HERP, the special project on the strain concentrated zone, the priority research on Tachikawa fault, and Scientific research fund #26330056. Funding was provided by Thematic series on Historical and Geological Studies of Earthquakes.</p> <h3 class="c-article__sub-heading" id="FPar1">Competing interests</h3> <p>The author declares that she has no competing interests.</p> <h3 class="c-article__sub-heading" id="FPar2">Funding</h3> <p>This study was supported by the Ministry of Education, Culture, Sports, Science, and Technology of Japan, under Contracts to support the analysis and evaluation of earthquakes for HERP, the special project on the strain concentrated zone, the priority research on Tachikawa fault, and Scientific research fund #26330056.</p> </div></div></section><section aria-labelledby="author-information" data-title="Author information"><div class="c-article-section" id="author-information-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="author-information">Author information</h2><div class="c-article-section__content" id="author-information-content"><h3 class="c-article__sub-heading" id="affiliations">Authors and Affiliations</h3><ol class="c-article-author-affiliation__list"><li id="Aff1"><p class="c-article-author-affiliation__address">Association for the Development of Earthquake Prediction, 1-5-18, Sarugaku-cho, Chiyoda-ku, Tokyo, 101-0064, Japan</p><p class="c-article-author-affiliation__authors-list">Ritsuko S. Matsu’ura</p></li></ol><div class="u-js-hide u-hide-print" data-test="author-info"><span class="c-article__sub-heading">Authors</span><ol class="c-article-authors-search u-list-reset"><li id="auth-Ritsuko_S_-Matsu_ura-Aff1"><span class="c-article-authors-search__title u-h3 js-search-name">Ritsuko S. Matsu’ura</span><div class="c-article-authors-search__list"><div class="c-article-authors-search__item c-article-authors-search__list-item--left"><a href="https://www.biomedcentral.com/search?query=author%23Ritsuko%20S.%20Matsu%E2%80%99ura" class="c-article-button" data-track="click" data-track-action="author link - publication" data-track-label="link" rel="nofollow">View author publications</a></div><div class="c-article-authors-search__item c-article-authors-search__list-item--right"><p class="search-in-title-js c-article-authors-search__text">You can also search for this author in <span class="c-article-identifiers"><a class="c-article-identifiers__item" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=search&term=Ritsuko%20S.%20Matsu%E2%80%99ura" data-track="click" data-track-action="author link - pubmed" data-track-label="link" rel="nofollow">PubMed</a><span class="u-hide"> </span><a class="c-article-identifiers__item" href="http://scholar.google.co.uk/scholar?as_q=&num=10&btnG=Search+Scholar&as_epq=&as_oq=&as_eq=&as_occt=any&as_sauthors=%22Ritsuko%20S.%20Matsu%E2%80%99ura%22&as_publication=&as_ylo=&as_yhi=&as_allsubj=all&hl=en" data-track="click" data-track-action="author link - scholar" data-track-label="link" rel="nofollow">Google Scholar</a></span></p></div></div></li></ol></div><h3 class="c-article__sub-heading" id="corresponding-author">Corresponding author</h3><p id="corresponding-author-list">Correspondence to <a id="corresp-c1" href="mailto:matsuura@adep.or.jp">Ritsuko S. Matsu’ura</a>.</p></div></div></section><section aria-labelledby="appendices"><div class="c-article-section" id="appendices-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="appendices">Appendix</h2><div class="c-article-section__content" id="appendices-content"><h3 class="c-article__sub-heading u-visually-hidden" id="App1">Appendix</h3><p>The name of Japanese major historical earthquakes. Genroku (1688–1704), Hoei (1704–1711), Ansei (1854–1860), and Taisho (1912–1926) are all names of Japanese era, while Kanto, Tohoku, Tokai, and Nankai are the region names. These names of time and place are usually used as names for major historical earthquakes in Japan. Nankai is the name of the trough off the southwestern Japan (Fig. <a data-track="click" data-track-label="link" data-track-action="figure anchor" href="/articles/10.1186/s40562-017-0069-4#Fig1">1</a>), and Tokai represents the eastern half of the Nankai trough.</p></div></div></section><section data-title="Rights and permissions"><div class="c-article-section" id="rightslink-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="rightslink">Rights and permissions</h2><div class="c-article-section__content" id="rightslink-content"> <p> <b>Open Access</b> This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (<a href="http://creativecommons.org/licenses/by/4.0/" rel="license">http://creativecommons.org/licenses/by/4.0/</a>), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.</p> <p class="c-article-rights"><a data-track="click" data-track-action="view rights and permissions" data-track-label="link" href="https://s100.copyright.com/AppDispatchServlet?title=A%20short%20history%20of%20Japanese%20historical%20seismology%3A%20past%20and%20the%20present&author=Ritsuko%20S.%20Matsu%E2%80%99ura&contentID=10.1186%2Fs40562-017-0069-4&copyright=The%20Author%28s%29&publication=2196-4092&publicationDate=2017-01-28&publisherName=SpringerNature&orderBeanReset=true&oa=CC%20BY">Reprints and permissions</a></p></div></div></section><section aria-labelledby="article-info" data-title="About this article"><div class="c-article-section" id="article-info-section"><h2 class="c-article-section__title js-section-title js-c-reading-companion-sections-item" id="article-info">About this article</h2><div class="c-article-section__content" id="article-info-content"><div class="c-bibliographic-information"><div class="u-hide-print c-bibliographic-information__column c-bibliographic-information__column--border"><a data-crossmark="10.1186/s40562-017-0069-4" target="_blank" rel="noopener" href="https://crossmark.crossref.org/dialog/?doi=10.1186/s40562-017-0069-4" data-track="click" data-track-action="Click Crossmark" data-track-label="link" data-test="crossmark"><img loading="lazy" width="57" height="81" alt="Check for updates. Verify currency and authenticity via CrossMark" src="data:image/svg+xml;base64,<svg height="81" width="57" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><path d="m17.35 35.45 21.3-14.2v-17.03h-21.3" fill="#989898"/><path d="m38.65 35.45-21.3-14.2v-17.03h21.3" fill="#747474"/><path d="m28 .5c-12.98 0-23.5 10.52-23.5 23.5s10.52 23.5 23.5 23.5 23.5-10.52 23.5-23.5c0-6.23-2.48-12.21-6.88-16.62-4.41-4.4-10.39-6.88-16.62-6.88zm0 41.25c-9.8 0-17.75-7.95-17.75-17.75s7.95-17.75 17.75-17.75 17.75 7.95 17.75 17.75c0 4.71-1.87 9.22-5.2 12.55s-7.84 5.2-12.55 5.2z" fill="#535353"/><path d="m41 36c-5.81 6.23-15.23 7.45-22.43 2.9-7.21-4.55-10.16-13.57-7.03-21.5l-4.92-3.11c-4.95 10.7-1.19 23.42 8.78 29.71 9.97 6.3 23.07 4.22 30.6-4.86z" fill="#9c9c9c"/><path d="m.2 58.45c0-.75.11-1.42.33-2.01s.52-1.09.91-1.5c.38-.41.83-.73 1.34-.94.51-.22 1.06-.32 1.65-.32.56 0 1.06.11 1.51.35.44.23.81.5 1.1.81l-.91 1.01c-.24-.24-.49-.42-.75-.56-.27-.13-.58-.2-.93-.2-.39 0-.73.08-1.05.23-.31.16-.58.37-.81.66-.23.28-.41.63-.53 1.04-.13.41-.19.88-.19 1.39 0 1.04.23 1.86.68 2.46.45.59 1.06.88 1.84.88.41 0 .77-.07 1.07-.23s.59-.39.85-.68l.91 1c-.38.43-.8.76-1.28.99-.47.22-1 .34-1.58.34-.59 0-1.13-.1-1.64-.31-.5-.2-.94-.51-1.31-.91-.38-.4-.67-.9-.88-1.48-.22-.59-.33-1.26-.33-2.02zm8.4-5.33h1.61v2.54l-.05 1.33c.29-.27.61-.51.96-.72s.76-.31 1.24-.31c.73 0 1.27.23 1.61.71.33.47.5 1.14.5 2.02v4.31h-1.61v-4.1c0-.57-.08-.97-.25-1.21-.17-.23-.45-.35-.83-.35-.3 0-.56.08-.79.22-.23.15-.49.36-.78.64v4.8h-1.61zm7.37 6.45c0-.56.09-1.06.26-1.51.18-.45.42-.83.71-1.14.29-.3.63-.54 1.01-.71.39-.17.78-.25 1.18-.25.47 0 .88.08 1.23.24.36.16.65.38.89.67s.42.63.54 1.03c.12.41.18.84.18 1.32 0 .32-.02.57-.07.76h-4.36c.07.62.29 1.1.65 1.44.36.33.82.5 1.38.5.29 0 .57-.04.83-.13s.51-.21.76-.37l.55 1.01c-.33.21-.69.39-1.09.53-.41.14-.83.21-1.26.21-.48 0-.92-.08-1.34-.25-.41-.16-.76-.4-1.07-.7-.31-.31-.55-.69-.72-1.13-.18-.44-.26-.95-.26-1.52zm4.6-.62c0-.55-.11-.98-.34-1.28-.23-.31-.58-.47-1.06-.47-.41 0-.77.15-1.07.45-.31.29-.5.73-.58 1.3zm2.5.62c0-.57.09-1.08.28-1.53.18-.44.43-.82.75-1.13s.69-.54 1.1-.71c.42-.16.85-.24 1.31-.24.45 0 .84.08 1.17.23s.61.34.85.57l-.77 1.02c-.19-.16-.38-.28-.56-.37-.19-.09-.39-.14-.61-.14-.56 0-1.01.21-1.35.63-.35.41-.52.97-.52 1.67 0 .69.17 1.24.51 1.66.34.41.78.62 1.32.62.28 0 .54-.06.78-.17.24-.12.45-.26.64-.42l.67 1.03c-.33.29-.69.51-1.08.65-.39.15-.78.23-1.18.23-.46 0-.9-.08-1.31-.24-.4-.16-.75-.39-1.05-.7s-.53-.69-.7-1.13c-.17-.45-.25-.96-.25-1.53zm6.91-6.45h1.58v6.17h.05l2.54-3.16h1.77l-2.35 2.8 2.59 4.07h-1.75l-1.77-2.98-1.08 1.23v1.75h-1.58zm13.69 1.27c-.25-.11-.5-.17-.75-.17-.58 0-.87.39-.87 1.16v.75h1.34v1.27h-1.34v5.6h-1.61v-5.6h-.92v-1.2l.92-.07v-.72c0-.35.04-.68.13-.98.08-.31.21-.57.4-.79s.42-.39.71-.51c.28-.12.63-.18 1.04-.18.24 0 .48.02.69.07.22.05.41.1.57.17zm.48 5.18c0-.57.09-1.08.27-1.53.17-.44.41-.82.72-1.13.3-.31.65-.54 1.04-.71.39-.16.8-.24 1.23-.24s.84.08 1.24.24c.4.17.74.4 1.04.71s.54.69.72 1.13c.19.45.28.96.28 1.53s-.09 1.08-.28 1.53c-.18.44-.42.82-.72 1.13s-.64.54-1.04.7-.81.24-1.24.24-.84-.08-1.23-.24-.74-.39-1.04-.7c-.31-.31-.55-.69-.72-1.13-.18-.45-.27-.96-.27-1.53zm1.65 0c0 .69.14 1.24.43 1.66.28.41.68.62 1.18.62.51 0 .9-.21 1.19-.62.29-.42.44-.97.44-1.66 0-.7-.15-1.26-.44-1.67-.29-.42-.68-.63-1.19-.63-.5 0-.9.21-1.18.63-.29.41-.43.97-.43 1.67zm6.48-3.44h1.33l.12 1.21h.05c.24-.44.54-.79.88-1.02.35-.24.7-.36 1.07-.36.32 0 .59.05.78.14l-.28 1.4-.33-.09c-.11-.01-.23-.02-.38-.02-.27 0-.56.1-.86.31s-.55.58-.77 1.1v4.2h-1.61zm-47.87 15h1.61v4.1c0 .57.08.97.25 1.2.17.24.44.35.81.35.3 0 .57-.07.8-.22.22-.15.47-.39.73-.73v-4.7h1.61v6.87h-1.32l-.12-1.01h-.04c-.3.36-.63.64-.98.86-.35.21-.76.32-1.24.32-.73 0-1.27-.24-1.61-.71-.33-.47-.5-1.14-.5-2.02zm9.46 7.43v2.16h-1.61v-9.59h1.33l.12.72h.05c.29-.24.61-.45.97-.63.35-.17.72-.26 1.1-.26.43 0 .81.08 1.15.24.33.17.61.4.84.71.24.31.41.68.53 1.11.13.42.19.91.19 1.44 0 .59-.09 1.11-.25 1.57-.16.47-.38.85-.65 1.16-.27.32-.58.56-.94.73-.35.16-.72.25-1.1.25-.3 0-.6-.07-.9-.2s-.59-.31-.87-.56zm0-2.3c.26.22.5.37.73.45.24.09.46.13.66.13.46 0 .84-.2 1.15-.6.31-.39.46-.98.46-1.77 0-.69-.12-1.22-.35-1.61-.23-.38-.61-.57-1.13-.57-.49 0-.99.26-1.52.77zm5.87-1.69c0-.56.08-1.06.25-1.51.16-.45.37-.83.65-1.14.27-.3.58-.54.93-.71s.71-.25 1.08-.25c.39 0 .73.07 1 .2.27.14.54.32.81.55l-.06-1.1v-2.49h1.61v9.88h-1.33l-.11-.74h-.06c-.25.25-.54.46-.88.64-.33.18-.69.27-1.06.27-.87 0-1.56-.32-2.07-.95s-.76-1.51-.76-2.65zm1.67-.01c0 .74.13 1.31.4 1.7.26.38.65.58 1.15.58.51 0 .99-.26 1.44-.77v-3.21c-.24-.21-.48-.36-.7-.45-.23-.08-.46-.12-.7-.12-.45 0-.82.19-1.13.59-.31.39-.46.95-.46 1.68zm6.35 1.59c0-.73.32-1.3.97-1.71.64-.4 1.67-.68 3.08-.84 0-.17-.02-.34-.07-.51-.05-.16-.12-.3-.22-.43s-.22-.22-.38-.3c-.15-.06-.34-.1-.58-.1-.34 0-.68.07-1 .2s-.63.29-.93.47l-.59-1.08c.39-.24.81-.45 1.28-.63.47-.17.99-.26 1.54-.26.86 0 1.51.25 1.93.76s.63 1.25.63 2.21v4.07h-1.32l-.12-.76h-.05c-.3.27-.63.48-.98.66s-.73.27-1.14.27c-.61 0-1.1-.19-1.48-.56-.38-.36-.57-.85-.57-1.46zm1.57-.12c0 .3.09.53.27.67.19.14.42.21.71.21.28 0 .54-.07.77-.2s.48-.31.73-.56v-1.54c-.47.06-.86.13-1.18.23-.31.09-.57.19-.76.31s-.33.25-.41.4c-.09.15-.13.31-.13.48zm6.29-3.63h-.98v-1.2l1.06-.07.2-1.88h1.34v1.88h1.75v1.27h-1.75v3.28c0 .8.32 1.2.97 1.2.12 0 .24-.01.37-.04.12-.03.24-.07.34-.11l.28 1.19c-.19.06-.4.12-.64.17-.23.05-.49.08-.76.08-.4 0-.74-.06-1.02-.18-.27-.13-.49-.3-.67-.52-.17-.21-.3-.48-.37-.78-.08-.3-.12-.64-.12-1.01zm4.36 2.17c0-.56.09-1.06.27-1.51s.41-.83.71-1.14c.29-.3.63-.54 1.01-.71.39-.17.78-.25 1.18-.25.47 0 .88.08 1.23.24.36.16.65.38.89.67s.42.63.54 1.03c.12.41.18.84.18 1.32 0 .32-.02.57-.07.76h-4.37c.08.62.29 1.1.65 1.44.36.33.82.5 1.38.5.3 0 .58-.04.84-.13.25-.09.51-.21.76-.37l.54 1.01c-.32.21-.69.39-1.09.53s-.82.21-1.26.21c-.47 0-.92-.08-1.33-.25-.41-.16-.77-.4-1.08-.7-.3-.31-.54-.69-.72-1.13-.17-.44-.26-.95-.26-1.52zm4.61-.62c0-.55-.11-.98-.34-1.28-.23-.31-.58-.47-1.06-.47-.41 0-.77.15-1.08.45-.31.29-.5.73-.57 1.3zm3.01 2.23c.31.24.61.43.92.57.3.13.63.2.98.2.38 0 .65-.08.83-.23s.27-.35.27-.6c0-.14-.05-.26-.13-.37-.08-.1-.2-.2-.34-.28-.14-.09-.29-.16-.47-.23l-.53-.22c-.23-.09-.46-.18-.69-.3-.23-.11-.44-.24-.62-.4s-.33-.35-.45-.55c-.12-.21-.18-.46-.18-.75 0-.61.23-1.1.68-1.49.44-.38 1.06-.57 1.83-.57.48 0 .91.08 1.29.25s.71.36.99.57l-.74.98c-.24-.17-.49-.32-.73-.42-.25-.11-.51-.16-.78-.16-.35 0-.6.07-.76.21-.17.15-.25.33-.25.54 0 .14.04.26.12.36s.18.18.31.26c.14.07.29.14.46.21l.54.19c.23.09.47.18.7.29s.44.24.64.4c.19.16.34.35.46.58.11.23.17.5.17.82 0 .3-.06.58-.17.83-.12.26-.29.48-.51.68-.23.19-.51.34-.84.45-.34.11-.72.17-1.15.17-.48 0-.95-.09-1.41-.27-.46-.19-.86-.41-1.2-.68z" fill="#535353"/></g></svg>"></a></div><div class="c-bibliographic-information__column"><h3 class="c-article__sub-heading" id="citeas">Cite this article</h3><p class="c-bibliographic-information__citation">Matsu’ura, R.S. A short history of Japanese historical seismology: past and the present. <i>Geosci. Lett.</i> <b>4</b>, 3 (2017). https://doi.org/10.1186/s40562-017-0069-4</p><p class="c-bibliographic-information__download-citation u-hide-print"><a data-test="citation-link" data-track="click" data-track-action="download article citation" data-track-label="link" data-track-external="" rel="nofollow" href="https://citation-needed.springer.com/v2/references/10.1186/s40562-017-0069-4?format=refman&flavour=citation">Download citation<svg width="16" height="16" focusable="false" role="img" aria-hidden="true" class="u-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-eds-i-download-medium"></use></svg></a></p><ul class="c-bibliographic-information__list" data-test="publication-history"><li class="c-bibliographic-information__list-item"><p>Received<span class="u-hide">: </span><span class="c-bibliographic-information__value"><time datetime="2016-10-12">12 October 2016</time></span></p></li><li class="c-bibliographic-information__list-item"><p>Accepted<span class="u-hide">: </span><span class="c-bibliographic-information__value"><time datetime="2017-01-11">11 January 2017</time></span></p></li><li class="c-bibliographic-information__list-item"><p>Published<span class="u-hide">: </span><span class="c-bibliographic-information__value"><time datetime="2017-01-28">28 January 2017</time></span></p></li><li class="c-bibliographic-information__list-item c-bibliographic-information__list-item--full-width"><p><abbr title="Digital Object Identifier">DOI</abbr><span class="u-hide">: </span><span class="c-bibliographic-information__value">https://doi.org/10.1186/s40562-017-0069-4</span></p></li></ul><div data-component="share-box"><div class="c-article-share-box u-display-none" hidden=""><h3 class="c-article__sub-heading">Share this article</h3><p class="c-article-share-box__description">Anyone you share the following link with will be able to read this content:</p><button class="js-get-share-url c-article-share-box__button" type="button" id="get-share-url" data-track="click" data-track-label="button" data-track-external="" data-track-action="get shareable link">Get shareable link</button><div class="js-no-share-url-container u-display-none" hidden=""><p class="js-c-article-share-box__no-sharelink-info c-article-share-box__no-sharelink-info">Sorry, a shareable link is not currently available for this article.</p></div><div class="js-share-url-container u-display-none" hidden=""><p class="js-share-url c-article-share-box__only-read-input" id="share-url" data-track="click" data-track-label="button" data-track-action="select share url"></p><button class="js-copy-share-url c-article-share-box__button--link-like" type="button" id="copy-share-url" data-track="click" data-track-label="button" data-track-action="copy share url" data-track-external="">Copy to clipboard</button></div><p class="js-c-article-share-box__additional-info c-article-share-box__additional-info"> Provided by the Springer Nature SharedIt content-sharing initiative </p></div></div><h3 class="c-article__sub-heading">Keywords</h3><ul class="c-article-subject-list"><li class="c-article-subject-list__subject"><span><a href="/search?query=Japanese%20historical%20seismology&facet-discipline="Earth%20Sciences"" data-track="click" data-track-action="view keyword" data-track-label="link">Japanese historical seismology</a></span></li><li class="c-article-subject-list__subject"><span><a href="/search?query=Variations%20in%20repeated%20earthquakes&facet-discipline="Earth%20Sciences"" data-track="click" data-track-action="view keyword" data-track-label="link">Variations in repeated earthquakes</a></span></li><li class="c-article-subject-list__subject"><span><a href="/search?query=Compiled%20historical%20materials&facet-discipline="Earth%20Sciences"" data-track="click" data-track-action="view keyword" data-track-label="link">Compiled historical materials</a></span></li><li class="c-article-subject-list__subject"><span><a href="/search?query=Historical%20maximum%20intensity&facet-discipline="Earth%20Sciences"" data-track="click" data-track-action="view keyword" data-track-label="link">Historical maximum intensity</a></span></li></ul><div data-component="article-info-list"></div></div></div></div></div></section> </article> </main> <div class="c-article-extras u-text-sm u-hide-print" data-container-type="reading-companion" data-track-component="reading companion"> <aside> <div data-test="download-article-link-wrapper" class="js-context-bar-sticky-point-desktop" data-track-context="reading companion"> <div class="c-pdf-download u-clear-both"> <a href="//geoscienceletters.springeropen.com/counter/pdf/10.1186/s40562-017-0069-4.pdf" class="u-button u-button--full-width u-button--primary u-justify-content-space-between c-pdf-download__link" data-article-pdf="true" data-readcube-pdf-url="true" data-test="pdf-link" data-draft-ignore="true" data-track="content_download" data-track-type="article pdf download" data-track-action="download pdf" data-track-label="link" data-track-external download> <span class="c-pdf-download__text">Download PDF</span> <svg aria-hidden="true" focusable="false" width="16" height="16" class="u-icon"><use xlink:href="#icon-download"/></svg> </a> </div> </div> <div class="c-article-associated-content__container"> <section> <h2 class="c-article-associated-content__title u-mb-24">Associated content</h2> <div class="c-article-associated-content__collection collection u-mb-24"> <section> <p class="c-article-associated-content__collection-label u-sans-serif u-text-bold u-mb-8">Collection</p> <h3 class="c-article-associated-content__collection-title u-h3 u-mb-8"> <a href="https://www.springeropen.com/collections/hgse" class="u-link-inherit" data-track="click" data-track-action="view collection" data-track-category="associated content" data-track-label="collection" data-test="collection-link">Historical and Geological Studies of Earthquakes</a> </h3> </section> </div> </section> </div> <script> window.dataLayer = window.dataLayer || []; window.dataLayer[0] = window.dataLayer[0] || {}; window.dataLayer[0].content = window.dataLayer[0].content || {}; window.dataLayer[0].content.associatedContentTypes = "collection"; window.dataLayer[0].content.collections = "hgse"; </script> <div class="c-reading-companion"> <div class="c-reading-companion__sticky" data-component="reading-companion-sticky" data-test="reading-companion-sticky"> <div class="c-reading-companion__panel c-reading-companion__sections c-reading-companion__panel--active" id="tabpanel-sections"> <div class="js-ad u-lazy-ad-wrapper u-mt-16 u-hide" data-component-mpu> <aside class="adsbox c-ad c-ad--300x250 u-mt-16" data-component-mpu> <div class="c-ad__inner"> <p class="c-ad__label">Advertisement</p> <div id="div-gpt-ad-MPU1" data-ad-type="MPU1" data-test="MPU1-ad" data-pa11y-ignore data-gpt data-gpt-unitpath="/270604982/springer_open/geoscienceletters/articles" data-gpt-sizes="300x250" data-gpt-targeting="pos=MPU1;doi=10.1186/s40562-017-0069-4;type=article;kwrd=Japanese historical seismology,Variations in repeated earthquakes,Compiled historical materials,Historical maximum intensity;pmc=G00002,G36000,G18009,G25005,G18010,G35010;sponsored=hgse;" > <noscript> <a href="//pubads.g.doubleclick.net/gampad/jump?iu=/270604982/springer_open/geoscienceletters/articles&sz=300x250&pos=MPU1&doi=10.1186/s40562-017-0069-4&type=article&kwrd=Japanese historical seismology,Variations in repeated earthquakes,Compiled historical materials,Historical maximum intensity&pmc=G00002,G36000,G18009,G25005,G18010,G35010&sponsored=hgse&"> <img data-test="gpt-advert-fallback-img" src="//pubads.g.doubleclick.net/gampad/ad?iu=/270604982/springer_open/geoscienceletters/articles&sz=300x250&pos=MPU1&doi=10.1186/s40562-017-0069-4&type=article&kwrd=Japanese historical seismology,Variations in repeated earthquakes,Compiled historical materials,Historical maximum intensity&pmc=G00002,G36000,G18009,G25005,G18010,G35010&sponsored=hgse&" alt="Advertisement" width="300" height="250"> </a> </noscript> </div> </div> </aside> </div> </div> <div class="c-reading-companion__panel c-reading-companion__figures c-reading-companion__panel--full-width" id="tabpanel-figures"></div> <div class="c-reading-companion__panel c-reading-companion__references c-reading-companion__panel--full-width" id="tabpanel-references"></div> </div> </div> </aside> </div> </div> <img rel="nofollow" class='tracker' style='display:none' src='/track/article/10.1186/s40562-017-0069-4' alt=""/> <footer> <div class="c-publisher-footer u-color-inherit" data-test="publisher-footer"> <div class="u-container"> <div class="u-display-flex u-flex-wrap u-justify-content-space-between" data-test="publisher-footer-menu"> <div class="u-display-flex"> <ul class="c-list-group c-list-group--sm u-mr-24 u-mb-16"> <li class="c-list-group__item"> <a class="u-gray-link" href="https://support.biomedcentral.com/support/home">Support and Contact</a> </li> <li class="c-list-group__item"> <a class="u-gray-link" href="//www.springeropen.com/about/jobs">Jobs</a> </li> <li class="c-list-group__item"> <a class="u-gray-link" href="https://authorservices.springernature.com/language-editing/">Language editing for authors</a> </li> <li class="c-list-group__item"> <a class="u-gray-link" href="https://authorservices.springernature.com/scientific-editing/">Scientific editing for authors</a> </li> <li class="c-list-group__item"> <a class="u-gray-link" href="https://biomedcentral.typeform.com/to/VLXboo">Leave feedback</a> </li> </ul> <ul class="c-list-group c-list-group--sm u-mr-24 u-mb-16"> <li class="c-list-group__item"> <a class="u-gray-link" href="//www.springeropen.com/terms-and-conditions">Terms and conditions</a> </li> <li class="c-list-group__item"> <a class="u-gray-link" href="//www.springeropen.com/privacy-statement">Privacy statement</a> </li> <li class="c-list-group__item"> <a class="u-gray-link" href="//www.springeropen.com/accessibility">Accessibility</a> </li> <li class="c-list-group__item"> <a class="u-gray-link" href="//www.springeropen.com/cookies">Cookies</a> </li> </ul> </div> <div class="u-mb-24"> <h3 id="social-menu" class="u-text-sm u-reset-margin u-text-normal">Follow SpringerOpen</h3> <ul class="u-display-flex u-list-reset" data-test="footer-social-links"> <li class="u-mt-8 u-mr-8"> <a href="https://twitter.com/springeropen" data-track="click" data-track-category="Social" data-track-action="Clicked SpringerOpen Twitter" class="u-gray-link"> <span class="u-visually-hidden">SpringerOpen Twitter page</span> <svg class="u-icon u-text-lg" width="24" height="24" aria-hidden="true" focusable="false"> <use xlink:href="#icon-twitter-bordered"></use> </svg> </a> </li> <li class="u-mt-8 u-mr-8"> <a href="https://www.facebook.com/SpringerOpn" data-track="click" data-track-category="Social" data-track-action="Clicked SpringerOpen Facebook" class="u-gray-link"> <span class="u-visually-hidden">SpringerOpen Facebook page</span> <svg class="u-icon u-text-lg" width="24" height="24" aria-hidden="true" focusable="false"> <use xlink:href="#icon-facebook-bordered"></use> </svg> </a> </li> </ul> </div> </div> <p class="u-reset-margin"> By using this website, you agree to our <a class="u-gray-link" href="//www.springeropen.com/terms-and-conditions">Terms and Conditions</a>, <a class="u-gray-link" href="https://www.springernature.com/ccpa">Your US state privacy rights</a>, <a class="u-gray-link" href="//www.springeropen.com/privacy-statement">Privacy statement</a> and <a class="u-gray-link" href="//www.springeropen.com/cookies" data-test="cookie-link">Cookies</a> policy. <a class="u-gray-link" data-cc-action="preferences" href="javascript:void(0);">Your privacy choices/Manage cookies</a> we use in the preference centre. </p> </div> </div> <div class="c-corporate-footer"> <div class="u-container"> <img src=/static/images/logo-springernature-acb40b85fb.svg class="c-corporate-footer__logo" alt="Springer Nature" itemprop="logo" role="img"> <p class="c-corporate-footer__legal" data-test="copyright"> © 2024 BioMed Central Ltd unless otherwise stated. Part of <a class="c-corporate-footer__link" href="https://www.springernature.com" itemscope itemtype="http://schema.org/Organization" itemid="#parentOrganization">Springer Nature</a>. </p> </div> </div> </footer> </div> <div class="u-visually-hidden" aria-hidden="true"> <?xml version="1.0" encoding="UTF-8"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><defs><path id="a" d="M0 .74h56.72v55.24H0z"/></defs><symbol id="icon-access" viewBox="0 0 18 18"><path d="m14 8c.5522847 0 1 .44771525 1 1v7h2.5c.2761424 0 .5.2238576.5.5v1.5h-18v-1.5c0-.2761424.22385763-.5.5-.5h2.5v-7c0-.55228475.44771525-1 1-1s1 .44771525 1 1v6.9996556h8v-6.9996556c0-.55228475.4477153-1 1-1zm-8 0 2 1v5l-2 1zm6 0v7l-2-1v-5zm-2.42653766-7.59857636 7.03554716 4.92488299c.4162533.29137735.5174853.86502537.226108 1.28127873-.1721584.24594054-.4534847.39241464-.7536934.39241464h-14.16284822c-.50810197 0-.92-.41189803-.92-.92 0-.30020869.1464741-.58153499.39241464-.75369337l7.03554714-4.92488299c.34432015-.2410241.80260453-.2410241 1.14692468 0zm-.57346234 2.03988748-3.65526982 2.55868888h7.31053962z" fill-rule="evenodd"/></symbol><symbol id="icon-account" viewBox="0 0 18 18"><path d="m10.2379028 16.9048051c1.3083556-.2032362 2.5118471-.7235183 3.5294683-1.4798399-.8731327-2.5141501-2.0638925-3.935978-3.7673711-4.3188248v-1.27684611c1.1651924-.41183641 2-1.52307546 2-2.82929429 0-1.65685425-1.3431458-3-3-3-1.65685425 0-3 1.34314575-3 3 0 1.30621883.83480763 2.41745788 2 2.82929429v1.27684611c-1.70347856.3828468-2.89423845 1.8046747-3.76737114 4.3188248 1.01762123.7563216 2.22111275 1.2766037 3.52946833 1.4798399.40563808.0629726.81921174.0951949 1.23790281.0951949s.83226473-.0322223 1.2379028-.0951949zm4.3421782-2.1721994c1.4927655-1.4532925 2.419919-3.484675 2.419919-5.7326057 0-4.418278-3.581722-8-8-8s-8 3.581722-8 8c0 2.2479307.92715352 4.2793132 2.41991895 5.7326057.75688473-2.0164459 1.83949951-3.6071894 3.48926591-4.3218837-1.14534283-.70360829-1.90918486-1.96796271-1.90918486-3.410722 0-2.209139 1.790861-4 4-4s4 1.790861 4 4c0 1.44275929-.763842 2.70711371-1.9091849 3.410722 1.6497664.7146943 2.7323812 2.3054378 3.4892659 4.3218837zm-5.580081 3.2673943c-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9 4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9z" fill-rule="evenodd"/></symbol><symbol id="icon-alert" viewBox="0 0 18 18"><path d="m4 10h2.5c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-3.08578644l-1.12132034 1.1213203c-.18753638.1875364-.29289322.4418903-.29289322.7071068v.1715729h14v-.1715729c0-.2652165-.1053568-.5195704-.2928932-.7071068l-1.7071068-1.7071067v-3.4142136c0-2.76142375-2.2385763-5-5-5-2.76142375 0-5 2.23857625-5 5zm3 4c0 1.1045695.8954305 2 2 2s2-.8954305 2-2zm-5 0c-.55228475 0-1-.4477153-1-1v-.1715729c0-.530433.21071368-1.0391408.58578644-1.4142135l1.41421356-1.4142136v-3c0-3.3137085 2.6862915-6 6-6s6 2.6862915 6 6v3l1.4142136 1.4142136c.3750727.3750727.5857864.8837805.5857864 1.4142135v.1715729c0 .5522847-.4477153 1-1 1h-4c0 1.6568542-1.3431458 3-3 3-1.65685425 0-3-1.3431458-3-3z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-broad" viewBox="0 0 16 16"><path d="m6.10307866 2.97190702v7.69043288l2.44965196-2.44676915c.38776071-.38730439 1.0088052-.39493524 1.38498697-.01919617.38609051.38563612.38643641 1.01053024-.00013864 1.39665039l-4.12239817 4.11754683c-.38616704.3857126-1.01187344.3861062-1.39846576-.0000311l-4.12258206-4.11773056c-.38618426-.38572979-.39254614-1.00476697-.01636437-1.38050605.38609047-.38563611 1.01018509-.38751562 1.4012233.00306241l2.44985644 2.4469734v-8.67638639c0-.54139983.43698413-.98042709.98493125-.98159081l7.89910522-.0043627c.5451687 0 .9871152.44142642.9871152.98595351s-.4419465.98595351-.9871152.98595351z" fill-rule="evenodd" transform="matrix(-1 0 0 -1 14 15)"/></symbol><symbol id="icon-arrow-down" viewBox="0 0 16 16"><path d="m3.28337502 11.5302405 4.03074001 4.176208c.37758093.3912076.98937525.3916069 1.367372-.0000316l4.03091977-4.1763942c.3775978-.3912252.3838182-1.0190815.0160006-1.4001736-.3775061-.39113013-.9877245-.39303641-1.3700683.003106l-2.39538585 2.4818345v-11.6147896l-.00649339-.11662112c-.055753-.49733869-.46370161-.88337888-.95867408-.88337888-.49497246 0-.90292107.38604019-.95867408.88337888l-.00649338.11662112v11.6147896l-2.39518594-2.4816273c-.37913917-.39282218-.98637524-.40056175-1.35419292-.0194697-.37750607.3911302-.37784433 1.0249269.00013556 1.4165479z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-left" viewBox="0 0 16 16"><path d="m4.46975946 3.28337502-4.17620792 4.03074001c-.39120768.37758093-.39160691.98937525.0000316 1.367372l4.1763942 4.03091977c.39122514.3775978 1.01908149.3838182 1.40017357.0160006.39113012-.3775061.3930364-.9877245-.00310603-1.3700683l-2.48183446-2.39538585h11.61478958l.1166211-.00649339c.4973387-.055753.8833789-.46370161.8833789-.95867408 0-.49497246-.3860402-.90292107-.8833789-.95867408l-.1166211-.00649338h-11.61478958l2.4816273-2.39518594c.39282216-.37913917.40056173-.98637524.01946965-1.35419292-.39113012-.37750607-1.02492687-.37784433-1.41654791.00013556z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-right" viewBox="0 0 16 16"><path d="m11.5302405 12.716625 4.176208-4.03074003c.3912076-.37758093.3916069-.98937525-.0000316-1.367372l-4.1763942-4.03091981c-.3912252-.37759778-1.0190815-.38381821-1.4001736-.01600053-.39113013.37750607-.39303641.98772445.003106 1.37006824l2.4818345 2.39538588h-11.6147896l-.11662112.00649339c-.49733869.055753-.88337888.46370161-.88337888.95867408 0 .49497246.38604019.90292107.88337888.95867408l.11662112.00649338h11.6147896l-2.4816273 2.39518592c-.39282218.3791392-.40056175.9863753-.0194697 1.3541929.3911302.3775061 1.0249269.3778444 1.4165479-.0001355z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-sub" viewBox="0 0 16 16"><path d="m7.89692134 4.97190702v7.69043288l-2.44965196-2.4467692c-.38776071-.38730434-1.0088052-.39493519-1.38498697-.0191961-.38609047.3856361-.38643643 1.0105302.00013864 1.3966504l4.12239817 4.1175468c.38616704.3857126 1.01187344.3861062 1.39846576-.0000311l4.12258202-4.1177306c.3861843-.3857298.3925462-1.0047669.0163644-1.380506-.3860905-.38563612-1.0101851-.38751563-1.4012233.0030624l-2.44985643 2.4469734v-8.67638639c0-.54139983-.43698413-.98042709-.98493125-.98159081l-7.89910525-.0043627c-.54516866 0-.98711517.44142642-.98711517.98595351s.44194651.98595351.98711517.98595351z" fill-rule="evenodd"/></symbol><symbol id="icon-arrow-up" viewBox="0 0 16 16"><path d="m12.716625 4.46975946-4.03074003-4.17620792c-.37758093-.39120768-.98937525-.39160691-1.367372.0000316l-4.03091981 4.1763942c-.37759778.39122514-.38381821 1.01908149-.01600053 1.40017357.37750607.39113012.98772445.3930364 1.37006824-.00310603l2.39538588-2.48183446v11.61478958l.00649339.1166211c.055753.4973387.46370161.8833789.95867408.8833789.49497246 0 .90292107-.3860402.95867408-.8833789l.00649338-.1166211v-11.61478958l2.39518592 2.4816273c.3791392.39282216.9863753.40056173 1.3541929.01946965.3775061-.39113012.3778444-1.02492687-.0001355-1.41654791z" fill-rule="evenodd"/></symbol><symbol id="icon-article" viewBox="0 0 18 18"><path d="m13 15v-12.9906311c0-.0073595-.0019884-.0093689.0014977-.0093689l-11.00158888.00087166v13.00506804c0 .5482678.44615281.9940603.99415146.9940603h10.27350412c-.1701701-.2941734-.2675644-.6357129-.2675644-1zm-12 .0059397v-13.00506804c0-.5562408.44704472-1.00087166.99850233-1.00087166h11.00299537c.5510129 0 .9985023.45190985.9985023 1.0093689v2.9906311h3v9.9914698c0 1.1065798-.8927712 2.0085302-1.9940603 2.0085302h-12.01187942c-1.09954652 0-1.99406028-.8927712-1.99406028-1.9940603zm13-9.0059397v9c0 .5522847.4477153 1 1 1s1-.4477153 1-1v-9zm-10-2h7v4h-7zm1 1v2h5v-2zm-1 4h7v1h-7zm0 2h7v1h-7zm0 2h7v1h-7z" fill-rule="evenodd"/></symbol><symbol id="icon-audio" viewBox="0 0 18 18"><path d="m13.0957477 13.5588459c-.195279.1937043-.5119137.193729-.7072234.0000551-.1953098-.193674-.1953346-.5077061-.0000556-.7014104 1.0251004-1.0168342 1.6108711-2.3905226 1.6108711-3.85745208 0-1.46604976-.5850634-2.83898246-1.6090736-3.85566829-.1951894-.19379323-.1950192-.50782531.0003802-.70141028.1953993-.19358497.512034-.19341614.7072234.00037709 1.2094886 1.20083761 1.901635 2.8250555 1.901635 4.55670148 0 1.73268608-.6929822 3.35779608-1.9037571 4.55880738zm2.1233994 2.1025159c-.195234.193749-.5118687.1938462-.7072235.0002171-.1953548-.1936292-.1954528-.5076613-.0002189-.7014104 1.5832215-1.5711805 2.4881302-3.6939808 2.4881302-5.96012998 0-2.26581266-.9046382-4.3883241-2.487443-5.95944795-.1952117-.19377107-.1950777-.50780316.0002993-.70141031s.5120117-.19347426.7072234.00029682c1.7683321 1.75528196 2.7800854 4.12911258 2.7800854 6.66056144 0 2.53182498-1.0120556 4.90597838-2.7808529 6.66132328zm-14.21898205-3.6854911c-.5523759 0-1.00016505-.4441085-1.00016505-.991944v-3.96777631c0-.54783558.44778915-.99194407 1.00016505-.99194407h2.0003301l5.41965617-3.8393633c.44948677-.31842296 1.07413994-.21516983 1.39520191.23062232.12116339.16823446.18629727.36981184.18629727.57655577v12.01603479c0 .5478356-.44778914.9919441-1.00016505.9919441-.20845738 0-.41170538-.0645985-.58133413-.184766l-5.41965617-3.8393633zm0-.991944h2.32084805l5.68047235 4.0241292v-12.01603479l-5.68047235 4.02412928h-2.32084805z" fill-rule="evenodd"/></symbol><symbol id="icon-block" viewBox="0 0 24 24"><path d="m0 0h24v24h-24z" fill-rule="evenodd"/></symbol><symbol id="icon-book" viewBox="0 0 18 18"><path d="m4 13v-11h1v11h11v-11h-13c-.55228475 0-1 .44771525-1 1v10.2675644c.29417337-.1701701.63571286-.2675644 1-.2675644zm12 1h-13c-.55228475 0-1 .4477153-1 1s.44771525 1 1 1h13zm0 3h-13c-1.1045695 0-2-.8954305-2-2v-12c0-1.1045695.8954305-2 2-2h13c.5522847 0 1 .44771525 1 1v14c0 .5522847-.4477153 1-1 1zm-8.5-13h6c.2761424 0 .5.22385763.5.5s-.2238576.5-.5.5h-6c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm1 2h4c.2761424 0 .5.22385763.5.5s-.2238576.5-.5.5h-4c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5z" fill-rule="evenodd"/></symbol><symbol id="icon-broad" viewBox="0 0 24 24"><path d="m9.18274226 7.81v7.7999954l2.48162734-2.4816273c.3928221-.3928221 1.0219731-.4005617 1.4030652-.0194696.3911301.3911301.3914806 1.0249268-.0001404 1.4165479l-4.17620796 4.1762079c-.39120769.3912077-1.02508144.3916069-1.41671995-.0000316l-4.1763942-4.1763942c-.39122514-.3912251-.39767006-1.0190815-.01657798-1.4001736.39113012-.3911301 1.02337106-.3930364 1.41951349.0031061l2.48183446 2.4818344v-8.7999954c0-.54911294.4426881-.99439484.99778758-.99557515l8.00221246-.00442485c.5522847 0 1 .44771525 1 1s-.4477153 1-1 1z" fill-rule="evenodd" transform="matrix(-1 0 0 -1 20.182742 24.805206)"/></symbol><symbol id="icon-calendar" viewBox="0 0 18 18"><path d="m12.5 0c.2761424 0 .5.21505737.5.49047852v.50952148h2c1.1072288 0 2 .89451376 2 2v12c0 1.1072288-.8945138 2-2 2h-12c-1.1072288 0-2-.8945138-2-2v-12c0-1.1072288.89451376-2 2-2h1v1h-1c-.55393837 0-1 .44579254-1 1v3h14v-3c0-.55393837-.4457925-1-1-1h-2v1.50952148c0 .27088381-.2319336.49047852-.5.49047852-.2761424 0-.5-.21505737-.5-.49047852v-3.01904296c0-.27088381.2319336-.49047852.5-.49047852zm3.5 7h-14v8c0 .5539384.44579254 1 1 1h12c.5539384 0 1-.4457925 1-1zm-11 6v1h-1v-1zm3 0v1h-1v-1zm3 0v1h-1v-1zm-6-2v1h-1v-1zm3 0v1h-1v-1zm6 0v1h-1v-1zm-3 0v1h-1v-1zm-3-2v1h-1v-1zm6 0v1h-1v-1zm-3 0v1h-1v-1zm-5.5-9c.27614237 0 .5.21505737.5.49047852v.50952148h5v1h-5v1.50952148c0 .27088381-.23193359.49047852-.5.49047852-.27614237 0-.5-.21505737-.5-.49047852v-3.01904296c0-.27088381.23193359-.49047852.5-.49047852z" fill-rule="evenodd"/></symbol><symbol id="icon-cart" viewBox="0 0 18 18"><path d="m5 14c1.1045695 0 2 .8954305 2 2s-.8954305 2-2 2-2-.8954305-2-2 .8954305-2 2-2zm10 0c1.1045695 0 2 .8954305 2 2s-.8954305 2-2 2-2-.8954305-2-2 .8954305-2 2-2zm-10 1c-.55228475 0-1 .4477153-1 1s.44771525 1 1 1 1-.4477153 1-1-.44771525-1-1-1zm10 0c-.5522847 0-1 .4477153-1 1s.4477153 1 1 1 1-.4477153 1-1-.4477153-1-1-1zm-12.82032249-15c.47691417 0 .88746157.33678127.98070211.80449199l.23823144 1.19501025 13.36277974.00045554c.5522847.00001882.9999659.44774934.9999659 1.00004222 0 .07084994-.0075361.14150708-.022474.2107727l-1.2908094 5.98534344c-.1007861.46742419-.5432548.80388386-1.0571651.80388386h-10.24805106c-.59173366 0-1.07142857.4477153-1.07142857 1 0 .5128358.41361449.9355072.94647737.9932723l.1249512.0067277h10.35933776c.2749512 0 .4979349.2228539.4979349.4978051 0 .2749417-.2227336.4978951-.4976753.4980063l-10.35959736.0041886c-1.18346732 0-2.14285714-.8954305-2.14285714-2 0-.6625717.34520317-1.24989198.87690425-1.61383592l-1.63768102-8.19004794c-.01312273-.06561364-.01950005-.131011-.0196107-.19547395l-1.71961253-.00064219c-.27614237 0-.5-.22385762-.5-.5 0-.27614237.22385763-.5.5-.5zm14.53193359 2.99950224h-13.11300004l1.20580469 6.02530174c.11024034-.0163252.22327998-.02480398.33844139-.02480398h10.27064786z"/></symbol><symbol id="icon-chevron-less" viewBox="0 0 10 10"><path d="m5.58578644 4-3.29289322-3.29289322c-.39052429-.39052429-.39052429-1.02368927 0-1.41421356s1.02368927-.39052429 1.41421356 0l4 4c.39052429.39052429.39052429 1.02368927 0 1.41421356l-4 4c-.39052429.39052429-1.02368927.39052429-1.41421356 0s-.39052429-1.02368927 0-1.41421356z" fill-rule="evenodd" transform="matrix(0 -1 -1 0 9 9)"/></symbol><symbol id="icon-chevron-more" viewBox="0 0 10 10"><path d="m5.58578644 6-3.29289322-3.29289322c-.39052429-.39052429-.39052429-1.02368927 0-1.41421356s1.02368927-.39052429 1.41421356 0l4 4c.39052429.39052429.39052429 1.02368927 0 1.41421356l-4 4.00000002c-.39052429.3905243-1.02368927.3905243-1.41421356 0s-.39052429-1.02368929 0-1.41421358z" fill-rule="evenodd" transform="matrix(0 1 -1 0 11 1)"/></symbol><symbol id="icon-chevron-right" viewBox="0 0 10 10"><path d="m5.96738168 4.70639573 2.39518594-2.41447274c.37913917-.38219212.98637524-.38972225 1.35419292-.01894278.37750606.38054586.37784436.99719163-.00013556 1.37821513l-4.03074001 4.06319683c-.37758093.38062133-.98937525.38100976-1.367372-.00003075l-4.03091981-4.06337806c-.37759778-.38063832-.38381821-.99150444-.01600053-1.3622839.37750607-.38054587.98772445-.38240057 1.37006824.00302197l2.39538588 2.4146743.96295325.98624457z" fill-rule="evenodd" transform="matrix(0 -1 1 0 0 10)"/></symbol><symbol id="icon-circle-fill" viewBox="0 0 16 16"><path d="m8 14c-3.3137085 0-6-2.6862915-6-6s2.6862915-6 6-6 6 2.6862915 6 6-2.6862915 6-6 6z" fill-rule="evenodd"/></symbol><symbol id="icon-circle" viewBox="0 0 16 16"><path d="m8 12c2.209139 0 4-1.790861 4-4s-1.790861-4-4-4-4 1.790861-4 4 1.790861 4 4 4zm0 2c-3.3137085 0-6-2.6862915-6-6s2.6862915-6 6-6 6 2.6862915 6 6-2.6862915 6-6 6z" fill-rule="evenodd"/></symbol><symbol id="icon-citation" viewBox="0 0 18 18"><path d="m8.63593473 5.99995183c2.20913897 0 3.99999997 1.79084375 3.99999997 3.99996146 0 1.40730761-.7267788 2.64486871-1.8254829 3.35783281 1.6240224.6764218 2.8754442 2.0093871 3.4610603 3.6412466l-1.0763845.000006c-.5310008-1.2078237-1.5108121-2.1940153-2.7691712-2.7181346l-.79002167-.329052v-1.023992l.63016577-.4089232c.8482885-.5504661 1.3698342-1.4895187 1.3698342-2.51898361 0-1.65683828-1.3431457-2.99996146-2.99999997-2.99996146-1.65685425 0-3 1.34312318-3 2.99996146 0 1.02946491.52154569 1.96851751 1.36983419 2.51898361l.63016581.4089232v1.023992l-.79002171.329052c-1.25835905.5241193-2.23817037 1.5103109-2.76917113 2.7181346l-1.07638453-.000006c.58561612-1.6318595 1.8370379-2.9648248 3.46106024-3.6412466-1.09870405-.7129641-1.82548287-1.9505252-1.82548287-3.35783281 0-2.20911771 1.790861-3.99996146 4-3.99996146zm7.36897597-4.99995183c1.1018574 0 1.9950893.89353404 1.9950893 2.00274083v5.994422c0 1.10608317-.8926228 2.00274087-1.9950893 2.00274087l-3.0049107-.0009037v-1l3.0049107.00091329c.5490631 0 .9950893-.44783123.9950893-1.00275046v-5.994422c0-.55646537-.4450595-1.00275046-.9950893-1.00275046h-14.00982141c-.54906309 0-.99508929.44783123-.99508929 1.00275046v5.9971821c0 .66666024.33333333.99999036 1 .99999036l2-.00091329v1l-2 .0009037c-1 0-2-.99999041-2-1.99998077v-5.9971821c0-1.10608322.8926228-2.00274083 1.99508929-2.00274083zm-8.5049107 2.9999711c.27614237 0 .5.22385547.5.5 0 .2761349-.22385763.5-.5.5h-4c-.27614237 0-.5-.2238651-.5-.5 0-.27614453.22385763-.5.5-.5zm3 0c.2761424 0 .5.22385547.5.5 0 .2761349-.2238576.5-.5.5h-1c-.27614237 0-.5-.2238651-.5-.5 0-.27614453.22385763-.5.5-.5zm4 0c.2761424 0 .5.22385547.5.5 0 .2761349-.2238576.5-.5.5h-2c-.2761424 0-.5-.2238651-.5-.5 0-.27614453.2238576-.5.5-.5z" fill-rule="evenodd"/></symbol><symbol id="icon-close" viewBox="0 0 16 16"><path d="m2.29679575 12.2772478c-.39658757.3965876-.39438847 1.0328109-.00062148 1.4265779.39651227.3965123 1.03246768.3934888 1.42657791-.0006214l4.27724782-4.27724787 4.2772478 4.27724787c.3965876.3965875 1.0328109.3943884 1.4265779.0006214.3965123-.3965122.3934888-1.0324677-.0006214-1.4265779l-4.27724787-4.2772478 4.27724787-4.27724782c.3965875-.39658757.3943884-1.03281091.0006214-1.42657791-.3965122-.39651226-1.0324677-.39348875-1.4265779.00062148l-4.2772478 4.27724782-4.27724782-4.27724782c-.39658757-.39658757-1.03281091-.39438847-1.42657791-.00062148-.39651226.39651227-.39348875 1.03246768.00062148 1.42657791l4.27724782 4.27724782z" fill-rule="evenodd"/></symbol><symbol id="icon-collections" viewBox="0 0 18 18"><path d="m15 4c1.1045695 0 2 .8954305 2 2v9c0 1.1045695-.8954305 2-2 2h-8c-1.1045695 0-2-.8954305-2-2h1c0 .5128358.38604019.9355072.88337887.9932723l.11662113.0067277h8c.5128358 0 .9355072-.3860402.9932723-.8833789l.0067277-.1166211v-9c0-.51283584-.3860402-.93550716-.8833789-.99327227l-.1166211-.00672773h-1v-1zm-4-3c1.1045695 0 2 .8954305 2 2v9c0 1.1045695-.8954305 2-2 2h-8c-1.1045695 0-2-.8954305-2-2v-9c0-1.1045695.8954305-2 2-2zm0 1h-8c-.51283584 0-.93550716.38604019-.99327227.88337887l-.00672773.11662113v9c0 .5128358.38604019.9355072.88337887.9932723l.11662113.0067277h8c.5128358 0 .9355072-.3860402.9932723-.8833789l.0067277-.1166211v-9c0-.51283584-.3860402-.93550716-.8833789-.99327227zm-1.5 7c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-5c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm0-2c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-5c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm0-2c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-5c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5z" fill-rule="evenodd"/></symbol><symbol id="icon-compare" viewBox="0 0 18 18"><path d="m12 3c3.3137085 0 6 2.6862915 6 6s-2.6862915 6-6 6c-1.0928452 0-2.11744941-.2921742-2.99996061-.8026704-.88181407.5102749-1.90678042.8026704-3.00003939.8026704-3.3137085 0-6-2.6862915-6-6s2.6862915-6 6-6c1.09325897 0 2.11822532.29239547 3.00096303.80325037.88158756-.51107621 1.90619177-.80325037 2.99903697-.80325037zm-6 1c-2.76142375 0-5 2.23857625-5 5 0 2.7614237 2.23857625 5 5 5 .74397391 0 1.44999672-.162488 2.08451611-.4539116-1.27652344-1.1000812-2.08451611-2.7287264-2.08451611-4.5460884s.80799267-3.44600721 2.08434391-4.5463015c-.63434719-.29121054-1.34037-.4536985-2.08434391-.4536985zm6 0c-.7439739 0-1.4499967.16248796-2.08451611.45391156 1.27652341 1.10008123 2.08451611 2.72872644 2.08451611 4.54608844s-.8079927 3.4460072-2.08434391 4.5463015c.63434721.2912105 1.34037001.4536985 2.08434391.4536985 2.7614237 0 5-2.2385763 5-5 0-2.76142375-2.2385763-5-5-5zm-1.4162763 7.0005324h-3.16744736c.15614659.3572676.35283837.6927622.58425872 1.0006671h1.99892988c.23142036-.3079049.42811216-.6433995.58425876-1.0006671zm.4162763-2.0005324h-4c0 .34288501.0345146.67770871.10025909 1.0011864h3.79948181c.0657445-.32347769.1002591-.65830139.1002591-1.0011864zm-.4158423-1.99953894h-3.16831543c-.13859957.31730812-.24521946.651783-.31578599.99935097h3.79988742c-.0705665-.34756797-.1771864-.68204285-.315786-.99935097zm-1.58295822-1.999926-.08316107.06199199c-.34550042.27081213-.65446126.58611297-.91825862.93727862h2.00044041c-.28418626-.37830727-.6207872-.71499149-.99902072-.99927061z" fill-rule="evenodd"/></symbol><symbol id="icon-download-file" viewBox="0 0 18 18"><path d="m10.0046024 0c.5497429 0 1.3179837.32258606 1.707238.71184039l4.5763192 4.57631922c.3931386.39313859.7118404 1.16760135.7118404 1.71431368v8.98899651c0 1.1092806-.8945138 2.0085302-1.9940603 2.0085302h-12.01187942c-1.10128908 0-1.99406028-.8926228-1.99406028-1.9950893v-14.00982141c0-1.10185739.88743329-1.99508929 1.99961498-1.99508929zm0 1h-7.00498742c-.55709576 0-.99961498.44271433-.99961498.99508929v14.00982141c0 .5500396.44491393.9950893.99406028.9950893h12.01187942c.5463747 0 .9940603-.4506622.9940603-1.0085302v-8.98899651c0-.28393444-.2150684-.80332809-.4189472-1.0072069l-4.5763192-4.57631922c-.2038461-.20384606-.718603-.41894717-1.0001312-.41894717zm-1.5046024 4c.27614237 0 .5.21637201.5.49209595v6.14827645l1.7462789-1.77990922c.1933927-.1971171.5125222-.19455839.7001689-.0069117.1932998.19329992.1910058.50899492-.0027774.70277812l-2.59089271 2.5908927c-.19483374.1948337-.51177825.1937771-.70556873-.0000133l-2.59099079-2.5909908c-.19484111-.1948411-.19043735-.5151448-.00279066-.70279146.19329987-.19329987.50465175-.19237083.70018565.00692852l1.74638684 1.78001764v-6.14827695c0-.27177709.23193359-.49209595.5-.49209595z" fill-rule="evenodd"/></symbol><symbol id="icon-download" viewBox="0 0 16 16"><path d="m12.9975267 12.999368c.5467123 0 1.0024733.4478567 1.0024733 1.000316 0 .5563109-.4488226 1.000316-1.0024733 1.000316h-9.99505341c-.54671233 0-1.00247329-.4478567-1.00247329-1.000316 0-.5563109.44882258-1.000316 1.00247329-1.000316zm-4.9975267-11.999368c.55228475 0 1 .44497754 1 .99589209v6.80214418l2.4816273-2.48241149c.3928222-.39294628 1.0219732-.4006883 1.4030652-.01947579.3911302.39125371.3914806 1.02525073-.0001404 1.41699553l-4.17620792 4.17752758c-.39120769.3913313-1.02508144.3917306-1.41671995-.0000316l-4.17639421-4.17771394c-.39122513-.39134876-.39767006-1.01940351-.01657797-1.40061601.39113012-.39125372 1.02337105-.3931606 1.41951349.00310701l2.48183446 2.48261871v-6.80214418c0-.55001601.44386482-.99589209 1-.99589209z" fill-rule="evenodd"/></symbol><symbol id="icon-editors" viewBox="0 0 18 18"><path d="m8.72592184 2.54588137c-.48811714-.34391207-1.08343326-.54588137-1.72592184-.54588137-1.65685425 0-3 1.34314575-3 3 0 1.02947485.5215457 1.96853646 1.3698342 2.51900785l.6301658.40892721v1.02400182l-.79002171.32905522c-1.93395773.8055207-3.20997829 2.7024791-3.20997829 4.8180274v.9009805h-1v-.9009805c0-2.5479714 1.54557359-4.79153984 3.82548288-5.7411543-1.09870406-.71297106-1.82548288-1.95054399-1.82548288-3.3578652 0-2.209139 1.790861-4 4-4 1.09079823 0 2.07961816.43662103 2.80122451 1.1446278-.37707584.09278571-.7373238.22835063-1.07530267.40125357zm-2.72592184 14.45411863h-1v-.9009805c0-2.5479714 1.54557359-4.7915398 3.82548288-5.7411543-1.09870406-.71297106-1.82548288-1.95054399-1.82548288-3.3578652 0-2.209139 1.790861-4 4-4s4 1.790861 4 4c0 1.40732121-.7267788 2.64489414-1.8254829 3.3578652 2.2799093.9496145 3.8254829 3.1931829 3.8254829 5.7411543v.9009805h-1v-.9009805c0-2.1155483-1.2760206-4.0125067-3.2099783-4.8180274l-.7900217-.3290552v-1.02400184l.6301658-.40892721c.8482885-.55047139 1.3698342-1.489533 1.3698342-2.51900785 0-1.65685425-1.3431458-3-3-3-1.65685425 0-3 1.34314575-3 3 0 1.02947485.5215457 1.96853646 1.3698342 2.51900785l.6301658.40892721v1.02400184l-.79002171.3290552c-1.93395773.8055207-3.20997829 2.7024791-3.20997829 4.8180274z" fill-rule="evenodd"/></symbol><symbol id="icon-email" viewBox="0 0 18 18"><path d="m16.0049107 2c1.1018574 0 1.9950893.89706013 1.9950893 2.00585866v9.98828264c0 1.1078052-.8926228 2.0058587-1.9950893 2.0058587h-14.00982141c-1.10185739 0-1.99508929-.8970601-1.99508929-2.0058587v-9.98828264c0-1.10780515.8926228-2.00585866 1.99508929-2.00585866zm0 1h-14.00982141c-.54871518 0-.99508929.44887827-.99508929 1.00585866v9.98828264c0 .5572961.44630695 1.0058587.99508929 1.0058587h14.00982141c.5487152 0 .9950893-.4488783.9950893-1.0058587v-9.98828264c0-.55729607-.446307-1.00585866-.9950893-1.00585866zm-.0049107 2.55749512v1.44250488l-7 4-7-4v-1.44250488l7 4z" fill-rule="evenodd"/></symbol><symbol id="icon-error" viewBox="0 0 18 18"><path d="m9 0c4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9zm2.8630343 4.71100931-2.8630343 2.86303426-2.86303426-2.86303426c-.39658757-.39658757-1.03281091-.39438847-1.4265779-.00062147-.39651227.39651226-.39348876 1.03246767.00062147 1.4265779l2.86303426 2.86303426-2.86303426 2.8630343c-.39658757.3965875-.39438847 1.0328109-.00062147 1.4265779.39651226.3965122 1.03246767.3934887 1.4265779-.0006215l2.86303426-2.8630343 2.8630343 2.8630343c.3965875.3965876 1.0328109.3943885 1.4265779.0006215.3965122-.3965123.3934887-1.0324677-.0006215-1.4265779l-2.8630343-2.8630343 2.8630343-2.86303426c.3965876-.39658757.3943885-1.03281091.0006215-1.4265779-.3965123-.39651227-1.0324677-.39348876-1.4265779.00062147z" fill-rule="evenodd"/></symbol><symbol id="icon-ethics" viewBox="0 0 18 18"><path d="m6.76384967 1.41421356.83301651-.8330165c.77492941-.77492941 2.03133823-.77492941 2.80626762 0l.8330165.8330165c.3750728.37507276.8837806.58578644 1.4142136.58578644h1.3496361c1.1045695 0 2 .8954305 2 2v1.34963611c0 .53043298.2107137 1.03914081.5857864 1.41421356l.8330165.83301651c.7749295.77492941.7749295 2.03133823 0 2.80626762l-.8330165.8330165c-.3750727.3750728-.5857864.8837806-.5857864 1.4142136v1.3496361c0 1.1045695-.8954305 2-2 2h-1.3496361c-.530433 0-1.0391408.2107137-1.4142136.5857864l-.8330165.8330165c-.77492939.7749295-2.03133821.7749295-2.80626762 0l-.83301651-.8330165c-.37507275-.3750727-.88378058-.5857864-1.41421356-.5857864h-1.34963611c-1.1045695 0-2-.8954305-2-2v-1.3496361c0-.530433-.21071368-1.0391408-.58578644-1.4142136l-.8330165-.8330165c-.77492941-.77492939-.77492941-2.03133821 0-2.80626762l.8330165-.83301651c.37507276-.37507275.58578644-.88378058.58578644-1.41421356v-1.34963611c0-1.1045695.8954305-2 2-2h1.34963611c.53043298 0 1.03914081-.21071368 1.41421356-.58578644zm-1.41421356 1.58578644h-1.34963611c-.55228475 0-1 .44771525-1 1v1.34963611c0 .79564947-.31607052 1.55871121-.87867966 2.12132034l-.8330165.83301651c-.38440512.38440512-.38440512 1.00764896 0 1.39205408l.8330165.83301646c.56260914.5626092.87867966 1.3256709.87867966 2.1213204v1.3496361c0 .5522847.44771525 1 1 1h1.34963611c.79564947 0 1.55871121.3160705 2.12132034.8786797l.83301651.8330165c.38440512.3844051 1.00764896.3844051 1.39205408 0l.83301646-.8330165c.5626092-.5626092 1.3256709-.8786797 2.1213204-.8786797h1.3496361c.5522847 0 1-.4477153 1-1v-1.3496361c0-.7956495.3160705-1.5587112.8786797-2.1213204l.8330165-.83301646c.3844051-.38440512.3844051-1.00764896 0-1.39205408l-.8330165-.83301651c-.5626092-.56260913-.8786797-1.32567087-.8786797-2.12132034v-1.34963611c0-.55228475-.4477153-1-1-1h-1.3496361c-.7956495 0-1.5587112-.31607052-2.1213204-.87867966l-.83301646-.8330165c-.38440512-.38440512-1.00764896-.38440512-1.39205408 0l-.83301651.8330165c-.56260913.56260914-1.32567087.87867966-2.12132034.87867966zm3.58698944 11.4960218c-.02081224.002155-.04199226.0030286-.06345763.002542-.98766446-.0223875-1.93408568-.3063547-2.75885125-.8155622-.23496767-.1450683-.30784554-.4531483-.16277726-.688116.14506827-.2349677.45314827-.3078455.68811595-.1627773.67447084.4164161 1.44758575.6483839 2.25617384.6667123.01759529.0003988.03495764.0017019.05204365.0038639.01713363-.0017748.03452416-.0026845.05212715-.0026845 2.4852814 0 4.5-2.0147186 4.5-4.5 0-1.04888973-.3593547-2.04134635-1.0074477-2.83787157-.1742817-.21419731-.1419238-.5291218.0722736-.70340353.2141973-.17428173.5291218-.14192375.7034035.07227357.7919032.97327203 1.2317706 2.18808682 1.2317706 3.46900153 0 3.0375661-2.4624339 5.5-5.5 5.5-.02146768 0-.04261937-.0013529-.06337445-.0039782zm1.57975095-10.78419583c.2654788.07599731.419084.35281842.3430867.61829728-.0759973.26547885-.3528185.419084-.6182973.3430867-.37560116-.10752146-.76586237-.16587951-1.15568824-.17249193-2.5587807-.00064534-4.58547766 2.00216524-4.58547766 4.49928198 0 .62691557.12797645 1.23496.37274865 1.7964426.11035133.2531347-.0053975.5477984-.25853224.6581497-.25313473.1103514-.54779841-.0053975-.65814974-.2585322-.29947131-.6869568-.45606667-1.43097603-.45606667-2.1960601 0-3.05211432 2.47714695-5.50006595 5.59399617-5.49921198.48576182.00815502.96289603.0795037 1.42238033.21103795zm-1.9766658 6.41091303 2.69835-2.94655317c.1788432-.21040373.4943901-.23598862.7047939-.05714545.2104037.17884318.2359886.49439014.0571454.70479387l-3.01637681 3.34277395c-.18039088.1999106-.48669547.2210637-.69285412.0478478l-1.93095347-1.62240047c-.21213845-.17678204-.24080048-.49206439-.06401844-.70420284.17678204-.21213844.49206439-.24080048.70420284-.06401844z" fill-rule="evenodd"/></symbol><symbol id="icon-expand"><path d="M7.498 11.918a.997.997 0 0 0-.003-1.411.995.995 0 0 0-1.412-.003l-4.102 4.102v-3.51A1 1 0 0 0 .98 10.09.992.992 0 0 0 0 11.092V17c0 .554.448 1.002 1.002 1.002h5.907c.554 0 1.002-.45 1.002-1.003 0-.539-.45-.978-1.006-.978h-3.51zm3.005-5.835a.997.997 0 0 0 .003 1.412.995.995 0 0 0 1.411.003l4.103-4.103v3.51a1 1 0 0 0 1.001 1.006A.992.992 0 0 0 18 6.91V1.002A1 1 0 0 0 17 0h-5.907a1.003 1.003 0 0 0-1.002 1.003c0 .539.45.978 1.006.978h3.51z" fill-rule="evenodd"/></symbol><symbol id="icon-explore" viewBox="0 0 18 18"><path d="m9 17c4.418278 0 8-3.581722 8-8s-3.581722-8-8-8-8 3.581722-8 8 3.581722 8 8 8zm0 1c-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9 4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9zm0-2.5c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5c2.969509 0 5.400504-2.3575119 5.497023-5.31714844.0090007-.27599565.2400359-.49243782.5160315-.48343711.2759957.0090007.4924378.2400359.4834371.51603155-.114093 3.4985237-2.9869632 6.284554-6.4964916 6.284554zm-.29090657-12.99359748c.27587424-.01216621.50937715.20161139.52154336.47748563.01216621.27587423-.20161139.50937715-.47748563.52154336-2.93195733.12930094-5.25315116 2.54886451-5.25315116 5.49456849 0 .27614237-.22385763.5-.5.5s-.5-.22385763-.5-.5c0-3.48142406 2.74307146-6.34074398 6.20909343-6.49359748zm1.13784138 8.04763908-1.2004882-1.20048821c-.19526215-.19526215-.19526215-.51184463 0-.70710678s.51184463-.19526215.70710678 0l1.20048821 1.2004882 1.6006509-4.00162734-4.50670359 1.80268144-1.80268144 4.50670359zm4.10281269-6.50378907-2.6692597 6.67314927c-.1016411.2541026-.3029834.4554449-.557086.557086l-6.67314927 2.6692597 2.66925969-6.67314926c.10164107-.25410266.30298336-.45544495.55708602-.55708602z" fill-rule="evenodd"/></symbol><symbol id="icon-filter" viewBox="0 0 16 16"><path d="m14.9738641 0c.5667192 0 1.0261359.4477136 1.0261359 1 0 .24221858-.0902161.47620768-.2538899.65849851l-5.6938314 6.34147206v5.49997973c0 .3147562-.1520673.6111434-.4104543.7999971l-2.05227171 1.4999945c-.45337535.3313696-1.09655869.2418269-1.4365902-.1999993-.13321514-.1730955-.20522717-.3836284-.20522717-.5999978v-6.99997423l-5.69383133-6.34147206c-.3731872-.41563511-.32996891-1.0473954.09653074-1.41107611.18705584-.15950448.42716133-.2474224.67571519-.2474224zm-5.9218641 8.5h-2.105v6.491l.01238459.0070843.02053271.0015705.01955278-.0070558 2.0532976-1.4990996zm-8.02585008-7.5-.01564945.00240169 5.83249953 6.49759831h2.313l5.836-6.499z"/></symbol><symbol id="icon-home" viewBox="0 0 18 18"><path d="m9 5-6 6v5h4v-4h4v4h4v-5zm7 6.5857864v4.4142136c0 .5522847-.4477153 1-1 1h-5v-4h-2v4h-5c-.55228475 0-1-.4477153-1-1v-4.4142136c-.25592232 0-.51184464-.097631-.70710678-.2928932l-.58578644-.5857864c-.39052429-.3905243-.39052429-1.02368929 0-1.41421358l8.29289322-8.29289322 8.2928932 8.29289322c.3905243.39052429.3905243 1.02368928 0 1.41421358l-.5857864.5857864c-.1952622.1952622-.4511845.2928932-.7071068.2928932zm-7-9.17157284-7.58578644 7.58578644.58578644.5857864 7-6.99999996 7 6.99999996.5857864-.5857864z" fill-rule="evenodd"/></symbol><symbol id="icon-image" viewBox="0 0 18 18"><path d="m10.0046024 0c.5497429 0 1.3179837.32258606 1.707238.71184039l4.5763192 4.57631922c.3931386.39313859.7118404 1.16760135.7118404 1.71431368v8.98899651c0 1.1092806-.8945138 2.0085302-1.9940603 2.0085302h-12.01187942c-1.10128908 0-1.99406028-.8926228-1.99406028-1.9950893v-14.00982141c0-1.10185739.88743329-1.99508929 1.99961498-1.99508929zm-3.49645283 10.1752453-3.89407257 6.7495552c.11705545.048464.24538859.0751995.37998328.0751995h10.60290092l-2.4329715-4.2154691-1.57494129 2.7288098zm8.49779013 6.8247547c.5463747 0 .9940603-.4506622.9940603-1.0085302v-8.98899651c0-.28393444-.2150684-.80332809-.4189472-1.0072069l-4.5763192-4.57631922c-.2038461-.20384606-.718603-.41894717-1.0001312-.41894717h-7.00498742c-.55709576 0-.99961498.44271433-.99961498.99508929v13.98991071l4.50814957-7.81026689 3.08089884 5.33809539 1.57494129-2.7288097 3.5875735 6.2159812zm-3.0059397-11c1.1045695 0 2 .8954305 2 2s-.8954305 2-2 2-2-.8954305-2-2 .8954305-2 2-2zm0 1c-.5522847 0-1 .44771525-1 1s.4477153 1 1 1 1-.44771525 1-1-.4477153-1-1-1z" fill-rule="evenodd"/></symbol><symbol id="icon-info" viewBox="0 0 18 18"><path d="m9 0c4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9zm0 7h-1.5l-.11662113.00672773c-.49733868.05776511-.88337887.48043643-.88337887.99327227 0 .47338693.32893365.86994729.77070917.97358929l.1126697.01968298.11662113.00672773h.5v3h-.5l-.11662113.0067277c-.42082504.0488782-.76196299.3590206-.85696816.7639815l-.01968298.1126697-.00672773.1166211.00672773.1166211c.04887817.4208251.35902055.761963.76398144.8569682l.1126697.019683.11662113.0067277h3l.1166211-.0067277c.4973387-.0577651.8833789-.4804365.8833789-.9932723 0-.4733869-.3289337-.8699473-.7707092-.9735893l-.1126697-.019683-.1166211-.0067277h-.5v-4l-.00672773-.11662113c-.04887817-.42082504-.35902055-.76196299-.76398144-.85696816l-.1126697-.01968298zm0-3.25c-.69035594 0-1.25.55964406-1.25 1.25s.55964406 1.25 1.25 1.25 1.25-.55964406 1.25-1.25-.55964406-1.25-1.25-1.25z" fill-rule="evenodd"/></symbol><symbol id="icon-institution" viewBox="0 0 18 18"><path d="m7 16.9998189v-2.0003623h4v2.0003623h2v-3.0005434h-8v3.0005434zm-3-10.00181122h-1.52632364c-.27614237 0-.5-.22389817-.5-.50009056 0-.13995446.05863589-.27350497.16166338-.36820841l1.23156713-1.13206327h-2.36690687v12.00217346h3v-2.0003623h-3v-1.0001811h3v-1.0001811h1v-4.00072448h-1zm10 0v2.00036224h-1v4.00072448h1v1.0001811h3v1.0001811h-3v2.0003623h3v-12.00217346h-2.3695309l1.2315671 1.13206327c.2033191.186892.2166633.50325042.0298051.70660631-.0946863.10304615-.2282126.16169266-.3681417.16169266zm3-3.00054336c.5522847 0 1 .44779634 1 1.00018112v13.00235456h-18v-13.00235456c0-.55238478.44771525-1.00018112 1-1.00018112h3.45499992l4.20535144-3.86558216c.19129876-.17584288.48537447-.17584288.67667324 0l4.2053514 3.86558216zm-4 3.00054336h-8v1.00018112h8zm-2 6.00108672h1v-4.00072448h-1zm-1 0v-4.00072448h-2v4.00072448zm-3 0v-4.00072448h-1v4.00072448zm8-4.00072448c.5522847 0 1 .44779634 1 1.00018112v2.00036226h-2v-2.00036226c0-.55238478.4477153-1.00018112 1-1.00018112zm-12 0c.55228475 0 1 .44779634 1 1.00018112v2.00036226h-2v-2.00036226c0-.55238478.44771525-1.00018112 1-1.00018112zm5.99868798-7.81907007-5.24205601 4.81852671h10.48411203zm.00131202 3.81834559c-.55228475 0-1-.44779634-1-1.00018112s.44771525-1.00018112 1-1.00018112 1 .44779634 1 1.00018112-.44771525 1.00018112-1 1.00018112zm-1 11.00199236v1.0001811h2v-1.0001811z" fill-rule="evenodd"/></symbol><symbol id="icon-location" viewBox="0 0 18 18"><path d="m9.39521328 16.2688008c.79596342-.7770119 1.59208152-1.6299956 2.33285652-2.5295081 1.4020032-1.7024324 2.4323601-3.3624519 2.9354918-4.871847.2228715-.66861448.3364384-1.29323246.3364384-1.8674457 0-3.3137085-2.6862915-6-6-6-3.36356866 0-6 2.60156856-6 6 0 .57421324.11356691 1.19883122.3364384 1.8674457.50313169 1.5093951 1.53348863 3.1694146 2.93549184 4.871847.74077492.8995125 1.53689309 1.7524962 2.33285648 2.5295081.13694479.1336842.26895677.2602648.39521328.3793207.12625651-.1190559.25826849-.2456365.39521328-.3793207zm-.39521328 1.7311992s-7-6-7-11c0-4 3.13400675-7 7-7 3.8659932 0 7 3.13400675 7 7 0 5-7 11-7 11zm0-8c-1.65685425 0-3-1.34314575-3-3s1.34314575-3 3-3c1.6568542 0 3 1.34314575 3 3s-1.3431458 3-3 3zm0-1c1.1045695 0 2-.8954305 2-2s-.8954305-2-2-2-2 .8954305-2 2 .8954305 2 2 2z" fill-rule="evenodd"/></symbol><symbol id="icon-minus" viewBox="0 0 16 16"><path d="m2.00087166 7h11.99825664c.5527662 0 1.0008717.44386482 1.0008717 1 0 .55228475-.4446309 1-1.0008717 1h-11.99825664c-.55276616 0-1.00087166-.44386482-1.00087166-1 0-.55228475.44463086-1 1.00087166-1z" fill-rule="evenodd"/></symbol><symbol id="icon-newsletter" viewBox="0 0 18 18"><path d="m9 11.8482489 2-1.1428571v-1.7053918h-4v1.7053918zm-3-1.7142857v-2.1339632h6v2.1339632l3-1.71428574v-6.41967746h-12v6.41967746zm10-5.3839632 1.5299989.95624934c.2923814.18273835.4700011.50320827.4700011.8479983v8.44575236c0 1.1045695-.8954305 2-2 2h-14c-1.1045695 0-2-.8954305-2-2v-8.44575236c0-.34479003.1776197-.66525995.47000106-.8479983l1.52999894-.95624934v-2.75c0-.55228475.44771525-1 1-1h12c.5522847 0 1 .44771525 1 1zm0 1.17924764v3.07075236l-7 4-7-4v-3.07075236l-1 .625v8.44575236c0 .5522847.44771525 1 1 1h14c.5522847 0 1-.4477153 1-1v-8.44575236zm-10-1.92924764h6v1h-6zm-1 2h8v1h-8z" fill-rule="evenodd"/></symbol><symbol id="icon-orcid" viewBox="0 0 18 18"><path d="m9 1c4.418278 0 8 3.581722 8 8s-3.581722 8-8 8-8-3.581722-8-8 3.581722-8 8-8zm-2.90107518 5.2732337h-1.41865256v7.1712107h1.41865256zm4.55867178.02508949h-2.99247027v7.14612121h2.91062487c.7673039 0 1.4476365-.1483432 2.0410182-.445034s1.0511995-.7152915 1.3734671-1.2558144c.3222677-.540523.4833991-1.1603247.4833991-1.85942385 0-.68545815-.1602789-1.30270225-.4808414-1.85175082-.3205625-.54904856-.7707074-.97532211-1.3504481-1.27883343-.5797408-.30351132-1.2413173-.45526471-1.9847495-.45526471zm-.1892674 1.07933542c.7877654 0 1.4143875.22336734 1.8798852.67010873.4654977.44674138.698243 1.05546001.698243 1.82617415 0 .74343221-.2310402 1.34447791-.6931277 1.80315511-.4620874.4586773-1.0750688.6880124-1.8389625.6880124h-1.46810075v-4.98745039zm-5.08652545-3.71099194c-.21825533 0-.410525.08444276-.57681478.25333081-.16628977.16888806-.24943341.36245684-.24943341.58071218 0 .22345188.08314364.41961891.24943341.58850696.16628978.16888806.35855945.25333082.57681478.25333082.233845 0 .43390938-.08314364.60019916-.24943342.16628978-.16628977.24943342-.36375592.24943342-.59240436 0-.233845-.08314364-.43131115-.24943342-.59240437s-.36635416-.24163862-.60019916-.24163862z" fill-rule="evenodd"/></symbol><symbol id="icon-plus" viewBox="0 0 16 16"><path d="m2.00087166 7h4.99912834v-4.99912834c0-.55276616.44386482-1.00087166 1-1.00087166.55228475 0 1 .44463086 1 1.00087166v4.99912834h4.9991283c.5527662 0 1.0008717.44386482 1.0008717 1 0 .55228475-.4446309 1-1.0008717 1h-4.9991283v4.9991283c0 .5527662-.44386482 1.0008717-1 1.0008717-.55228475 0-1-.4446309-1-1.0008717v-4.9991283h-4.99912834c-.55276616 0-1.00087166-.44386482-1.00087166-1 0-.55228475.44463086-1 1.00087166-1z" fill-rule="evenodd"/></symbol><symbol id="icon-print" viewBox="0 0 18 18"><path d="m16.0049107 5h-14.00982141c-.54941618 0-.99508929.4467783-.99508929.99961498v6.00077002c0 .5570958.44271433.999615.99508929.999615h1.00491071v-3h12v3h1.0049107c.5494162 0 .9950893-.4467783.9950893-.999615v-6.00077002c0-.55709576-.4427143-.99961498-.9950893-.99961498zm-2.0049107-1v-2.00208688c0-.54777062-.4519464-.99791312-1.0085302-.99791312h-7.9829396c-.55661731 0-1.0085302.44910695-1.0085302.99791312v2.00208688zm1 10v2.0018986c0 1.103521-.9019504 1.9981014-2.0085302 1.9981014h-7.9829396c-1.1092806 0-2.0085302-.8867064-2.0085302-1.9981014v-2.0018986h-1.00491071c-1.10185739 0-1.99508929-.8874333-1.99508929-1.999615v-6.00077002c0-1.10435686.8926228-1.99961498 1.99508929-1.99961498h1.00491071v-2.00208688c0-1.10341695.90195036-1.99791312 2.0085302-1.99791312h7.9829396c1.1092806 0 2.0085302.89826062 2.0085302 1.99791312v2.00208688h1.0049107c1.1018574 0 1.9950893.88743329 1.9950893 1.99961498v6.00077002c0 1.1043569-.8926228 1.999615-1.9950893 1.999615zm-1-3h-10v5.0018986c0 .5546075.44702548.9981014 1.0085302.9981014h7.9829396c.5565964 0 1.0085302-.4491701 1.0085302-.9981014zm-9 1h8v1h-8zm0 2h5v1h-5zm9-5c-.5522847 0-1-.44771525-1-1s.4477153-1 1-1 1 .44771525 1 1-.4477153 1-1 1z" fill-rule="evenodd"/></symbol><symbol id="icon-search" viewBox="0 0 22 22"><path d="M21.697 20.261a1.028 1.028 0 01.01 1.448 1.034 1.034 0 01-1.448-.01l-4.267-4.267A9.812 9.811 0 010 9.812a9.812 9.811 0 1117.43 6.182zM9.812 18.222A8.41 8.41 0 109.81 1.403a8.41 8.41 0 000 16.82z" fill-rule="evenodd"/></symbol><symbol id="icon-social-facebook" viewBox="0 0 24 24"><path d="m6.00368507 20c-1.10660471 0-2.00368507-.8945138-2.00368507-1.9940603v-12.01187942c0-1.10128908.89451376-1.99406028 1.99406028-1.99406028h12.01187942c1.1012891 0 1.9940603.89451376 1.9940603 1.99406028v12.01187942c0 1.1012891-.88679 1.9940603-2.0032184 1.9940603h-2.9570132v-6.1960818h2.0797387l.3114113-2.414723h-2.39115v-1.54164807c0-.69911803.1941355-1.1755439 1.1966615-1.1755439l1.2786739-.00055875v-2.15974763l-.2339477-.02492088c-.3441234-.03134957-.9500153-.07025255-1.6293054-.07025255-1.8435726 0-3.1057323 1.12531866-3.1057323 3.19187953v1.78079225h-2.0850778v2.414723h2.0850778v6.1960818z" fill-rule="evenodd"/></symbol><symbol id="icon-social-twitter" viewBox="0 0 24 24"><path d="m18.8767135 6.87445248c.7638174-.46908424 1.351611-1.21167363 1.6250764-2.09636345-.7135248.43394112-1.50406.74870123-2.3464594.91677702-.6695189-.73342162-1.6297913-1.19486605-2.6922204-1.19486605-2.0399895 0-3.6933555 1.69603749-3.6933555 3.78628909 0 .29642457.0314329.58673729.0942985.8617704-3.06469922-.15890802-5.78835241-1.66547825-7.60988389-3.9574208-.3174714.56076194-.49978171 1.21167363-.49978171 1.90536824 0 1.31404706.65223085 2.47224203 1.64236444 3.15218497-.60350999-.0198635-1.17401554-.1925232-1.67222562-.47366811v.04583885c0 1.83355406 1.27302891 3.36609966 2.96411421 3.71294696-.31118484.0886217-.63651445.1329326-.97441718.1329326-.2357461 0-.47149219-.0229194-.69466516-.0672303.47149219 1.5065703 1.83253297 2.6036468 3.44975116 2.632678-1.2651707 1.0160946-2.85724264 1.6196394-4.5891906 1.6196394-.29861172 0-.59093688-.0152796-.88011875-.0504227 1.63450624 1.0726291 3.57548241 1.6990934 5.66104951 1.6990934 6.79263079 0 10.50641749-5.7711113 10.50641749-10.7751859l-.0094298-.48894775c.7229547-.53478659 1.3516109-1.20250585 1.8419628-1.96190282-.6632323.30100846-1.3751855.50422736-2.1217148.59590507z" fill-rule="evenodd"/></symbol><symbol id="icon-social-youtube" viewBox="0 0 24 24"><path d="m10.1415 14.3973208-.0005625-5.19318431 4.863375 2.60554491zm9.963-7.92753362c-.6845625-.73643756-1.4518125-.73990314-1.803375-.7826454-2.518875-.18714178-6.2971875-.18714178-6.2971875-.18714178-.007875 0-3.7861875 0-6.3050625.18714178-.352125.04274226-1.1188125.04620784-1.8039375.7826454-.5394375.56084773-.7149375 1.8344515-.7149375 1.8344515s-.18 1.49597903-.18 2.99138042v1.4024082c0 1.495979.18 2.9913804.18 2.9913804s.1755 1.2736038.7149375 1.8344515c.685125.7364376 1.5845625.7133337 1.9850625.7901542 1.44.1420891 6.12.1859866 6.12.1859866s3.78225-.005776 6.301125-.1929178c.3515625-.0433198 1.1188125-.0467854 1.803375-.783223.5394375-.5608477.7155-1.8344515.7155-1.8344515s.18-1.4954014.18-2.9913804v-1.4024082c0-1.49540139-.18-2.99138042-.18-2.99138042s-.1760625-1.27360377-.7155-1.8344515z" fill-rule="evenodd"/></symbol><symbol id="icon-subject-medicine" viewBox="0 0 18 18"><path d="m12.5 8h-6.5c-1.65685425 0-3 1.34314575-3 3v1c0 1.6568542 1.34314575 3 3 3h1v-2h-.5c-.82842712 0-1.5-.6715729-1.5-1.5s.67157288-1.5 1.5-1.5h1.5 2 1 2c1.6568542 0 3-1.34314575 3-3v-1c0-1.65685425-1.3431458-3-3-3h-2v2h1.5c.8284271 0 1.5.67157288 1.5 1.5s-.6715729 1.5-1.5 1.5zm-5.5-1v-1h-3.5c-1.38071187 0-2.5-1.11928813-2.5-2.5s1.11928813-2.5 2.5-2.5h1.02786405c.46573528 0 .92507448.10843528 1.34164078.31671843l1.13382424.56691212c.06026365-1.05041141.93116291-1.88363055 1.99667093-1.88363055 1.1045695 0 2 .8954305 2 2h2c2.209139 0 4 1.790861 4 4v1c0 2.209139-1.790861 4-4 4h-2v1h2c1.1045695 0 2 .8954305 2 2s-.8954305 2-2 2h-2c0 1.1045695-.8954305 2-2 2s-2-.8954305-2-2h-1c-2.209139 0-4-1.790861-4-4v-1c0-2.209139 1.790861-4 4-4zm0-2v-2.05652691c-.14564246-.03538148-.28733393-.08714006-.42229124-.15461871l-1.15541752-.57770876c-.27771087-.13885544-.583937-.21114562-.89442719-.21114562h-1.02786405c-.82842712 0-1.5.67157288-1.5 1.5s.67157288 1.5 1.5 1.5zm4 1v1h1.5c.2761424 0 .5-.22385763.5-.5s-.2238576-.5-.5-.5zm-1 1v-5c0-.55228475-.44771525-1-1-1s-1 .44771525-1 1v5zm-2 4v5c0 .5522847.44771525 1 1 1s1-.4477153 1-1v-5zm3 2v2h2c.5522847 0 1-.4477153 1-1s-.4477153-1-1-1zm-4-1v-1h-.5c-.27614237 0-.5.2238576-.5.5s.22385763.5.5.5zm-3.5-9h1c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-1c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5z" fill-rule="evenodd"/></symbol><symbol id="icon-success" viewBox="0 0 18 18"><path d="m9 0c4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9zm3.4860198 4.98163161-4.71802968 5.50657859-2.62834168-2.02300024c-.42862421-.36730544-1.06564993-.30775346-1.42283677.13301307-.35718685.44076653-.29927542 1.0958383.12934879 1.46314377l3.40735508 2.7323063c.42215801.3385221 1.03700951.2798252 1.38749189-.1324571l5.38450527-6.33394549c.3613513-.43716226.3096573-1.09278382-.115462-1.46437175-.4251192-.37158792-1.0626796-.31842941-1.4240309.11873285z" fill-rule="evenodd"/></symbol><symbol id="icon-table" viewBox="0 0 18 18"><path d="m16.0049107 2c1.1018574 0 1.9950893.89706013 1.9950893 2.00585866v9.98828264c0 1.1078052-.8926228 2.0058587-1.9950893 2.0058587l-4.0059107-.001.001.001h-1l-.001-.001h-5l.001.001h-1l-.001-.001-3.00391071.001c-1.10185739 0-1.99508929-.8970601-1.99508929-2.0058587v-9.98828264c0-1.10780515.8926228-2.00585866 1.99508929-2.00585866zm-11.0059107 5h-3.999v6.9941413c0 .5572961.44630695 1.0058587.99508929 1.0058587h3.00391071zm6 0h-5v8h5zm5.0059107-4h-4.0059107v3h5.001v1h-5.001v7.999l4.0059107.001c.5487152 0 .9950893-.4488783.9950893-1.0058587v-9.98828264c0-.55729607-.446307-1.00585866-.9950893-1.00585866zm-12.5049107 9c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-1c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5zm12 0c.2761424 0 .5.2238576.5.5s-.2238576.5-.5.5h-2c-.2761424 0-.5-.2238576-.5-.5s.2238576-.5.5-.5zm-6 0c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-2c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5zm-6-2c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-1c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5zm12 0c.2761424 0 .5.2238576.5.5s-.2238576.5-.5.5h-2c-.2761424 0-.5-.2238576-.5-.5s.2238576-.5.5-.5zm-6 0c.27614237 0 .5.2238576.5.5s-.22385763.5-.5.5h-2c-.27614237 0-.5-.2238576-.5-.5s.22385763-.5.5-.5zm-6-2c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-1c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm12 0c.2761424 0 .5.22385763.5.5s-.2238576.5-.5.5h-2c-.2761424 0-.5-.22385763-.5-.5s.2238576-.5.5-.5zm-6 0c.27614237 0 .5.22385763.5.5s-.22385763.5-.5.5h-2c-.27614237 0-.5-.22385763-.5-.5s.22385763-.5.5-.5zm1.499-5h-5v3h5zm-6 0h-3.00391071c-.54871518 0-.99508929.44887827-.99508929 1.00585866v1.99414134h3.999z" fill-rule="evenodd"/></symbol><symbol id="icon-tick-circle" viewBox="0 0 24 24"><path d="m12 2c5.5228475 0 10 4.4771525 10 10s-4.4771525 10-10 10-10-4.4771525-10-10 4.4771525-10 10-10zm0 1c-4.97056275 0-9 4.02943725-9 9 0 4.9705627 4.02943725 9 9 9 4.9705627 0 9-4.0294373 9-9 0-4.97056275-4.0294373-9-9-9zm4.2199868 5.36606669c.3613514-.43716226.9989118-.49032077 1.424031-.11873285s.4768133 1.02720949.115462 1.46437175l-6.093335 6.94397871c-.3622945.4128716-.9897871.4562317-1.4054264.0971157l-3.89719065-3.3672071c-.42862421-.3673054-.48653564-1.0223772-.1293488-1.4631437s.99421256-.5003185 1.42283677-.1330131l3.11097438 2.6987741z" fill-rule="evenodd"/></symbol><symbol id="icon-tick" viewBox="0 0 16 16"><path d="m6.76799012 9.21106946-3.1109744-2.58349728c-.42862421-.35161617-1.06564993-.29460792-1.42283677.12733148s-.29927541 1.04903009.1293488 1.40064626l3.91576307 3.23873978c.41034319.3393961 1.01467563.2976897 1.37450571-.0948578l6.10568327-6.660841c.3613513-.41848908.3096572-1.04610608-.115462-1.4018218-.4251192-.35571573-1.0626796-.30482786-1.424031.11366122z" fill-rule="evenodd"/></symbol><symbol id="icon-update" viewBox="0 0 18 18"><path d="m1 13v1c0 .5522847.44771525 1 1 1h14c.5522847 0 1-.4477153 1-1v-1h-1v-10h-14v10zm16-1h1v2c0 1.1045695-.8954305 2-2 2h-14c-1.1045695 0-2-.8954305-2-2v-2h1v-9c0-.55228475.44771525-1 1-1h14c.5522847 0 1 .44771525 1 1zm-1 0v1h-4.5857864l-1 1h-2.82842716l-1-1h-4.58578644v-1h5l1 1h2l1-1zm-13-8h12v7h-12zm1 1v5h10v-5zm1 1h4v1h-4zm0 2h4v1h-4z" fill-rule="evenodd"/></symbol><symbol id="icon-upload" viewBox="0 0 18 18"><path d="m10.0046024 0c.5497429 0 1.3179837.32258606 1.707238.71184039l4.5763192 4.57631922c.3931386.39313859.7118404 1.16760135.7118404 1.71431368v8.98899651c0 1.1092806-.8945138 2.0085302-1.9940603 2.0085302h-12.01187942c-1.10128908 0-1.99406028-.8926228-1.99406028-1.9950893v-14.00982141c0-1.10185739.88743329-1.99508929 1.99961498-1.99508929zm0 1h-7.00498742c-.55709576 0-.99961498.44271433-.99961498.99508929v14.00982141c0 .5500396.44491393.9950893.99406028.9950893h12.01187942c.5463747 0 .9940603-.4506622.9940603-1.0085302v-8.98899651c0-.28393444-.2150684-.80332809-.4189472-1.0072069l-4.5763192-4.57631922c-.2038461-.20384606-.718603-.41894717-1.0001312-.41894717zm-1.85576936 4.14572769c.19483374-.19483375.51177826-.19377714.70556874.00001334l2.59099082 2.59099079c.1948411.19484112.1904373.51514474.0027906.70279143-.1932998.19329987-.5046517.19237083-.7001856-.00692852l-1.74638687-1.7800176v6.14827687c0 .2717771-.23193359.492096-.5.492096-.27614237 0-.5-.216372-.5-.492096v-6.14827641l-1.74627892 1.77990922c-.1933927.1971171-.51252214.19455839-.70016883.0069117-.19329987-.19329988-.19100584-.50899493.00277731-.70277808z" fill-rule="evenodd"/></symbol><symbol id="icon-video" viewBox="0 0 18 18"><path d="m16.0049107 2c1.1018574 0 1.9950893.89706013 1.9950893 2.00585866v9.98828264c0 1.1078052-.8926228 2.0058587-1.9950893 2.0058587h-14.00982141c-1.10185739 0-1.99508929-.8970601-1.99508929-2.0058587v-9.98828264c0-1.10780515.8926228-2.00585866 1.99508929-2.00585866zm0 1h-14.00982141c-.54871518 0-.99508929.44887827-.99508929 1.00585866v9.98828264c0 .5572961.44630695 1.0058587.99508929 1.0058587h14.00982141c.5487152 0 .9950893-.4488783.9950893-1.0058587v-9.98828264c0-.55729607-.446307-1.00585866-.9950893-1.00585866zm-8.30912922 2.24944486 4.60460462 2.73982242c.9365543.55726659.9290753 1.46522435 0 2.01804082l-4.60460462 2.7398224c-.93655425.5572666-1.69578148.1645632-1.69578148-.8937585v-5.71016863c0-1.05087579.76670616-1.446575 1.69578148-.89375851zm-.67492769.96085624v5.5750128c0 .2995102-.10753745.2442517.16578928.0847713l4.58452283-2.67497259c.3050619-.17799716.3051624-.21655446 0-.39461026l-4.58452283-2.67497264c-.26630747-.15538481-.16578928-.20699944-.16578928.08477139z" fill-rule="evenodd"/></symbol><symbol id="icon-warning" viewBox="0 0 18 18"><path d="m9 11.75c.69035594 0 1.25.5596441 1.25 1.25s-.55964406 1.25-1.25 1.25-1.25-.5596441-1.25-1.25.55964406-1.25 1.25-1.25zm.41320045-7.75c.55228475 0 1.00000005.44771525 1.00000005 1l-.0034543.08304548-.3333333 4c-.043191.51829212-.47645714.91695452-.99654578.91695452h-.15973424c-.52008864 0-.95335475-.3986624-.99654576-.91695452l-.33333333-4c-.04586475-.55037702.36312325-1.03372649.91350028-1.07959124l.04148683-.00259031zm-.41320045 14c-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9 4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9z" fill-rule="evenodd"/></symbol><symbol id="icon-checklist-banner" viewBox="0 0 56.69 56.69"><path style="fill:none" d="M0 0h56.69v56.69H0z"/><clipPath id="b"><use xlink:href="#a" style="overflow:visible"/></clipPath><path d="M21.14 34.46c0-6.77 5.48-12.26 12.24-12.26s12.24 5.49 12.24 12.26-5.48 12.26-12.24 12.26c-6.76-.01-12.24-5.49-12.24-12.26zm19.33 10.66 10.23 9.22s1.21 1.09 2.3-.12l2.09-2.32s1.09-1.21-.12-2.3l-10.23-9.22m-19.29-5.92c0-4.38 3.55-7.94 7.93-7.94s7.93 3.55 7.93 7.94c0 4.38-3.55 7.94-7.93 7.94-4.38-.01-7.93-3.56-7.93-7.94zm17.58 12.99 4.14-4.81" style="clip-path:url(#b);fill:none;stroke:#01324b;stroke-width:2;stroke-linecap:round"/><path d="M8.26 9.75H28.6M8.26 15.98H28.6m-20.34 6.2h12.5m14.42-5.2V4.86s0-2.93-2.93-2.93H4.13s-2.93 0-2.93 2.93v37.57s0 2.93 2.93 2.93h15.01M8.26 9.75H28.6M8.26 15.98H28.6m-20.34 6.2h12.5" style="clip-path:url(#b);fill:none;stroke:#01324b;stroke-width:2;stroke-linecap:round;stroke-linejoin:round"/></symbol><symbol id="icon-chevron-down" viewBox="0 0 16 16"><path d="m5.58578644 3-3.29289322-3.29289322c-.39052429-.39052429-.39052429-1.02368927 0-1.41421356s1.02368927-.39052429 1.41421356 0l4 4c.39052429.39052429.39052429 1.02368927 0 1.41421356l-4 4c-.39052429.39052429-1.02368927.39052429-1.41421356 0s-.39052429-1.02368927 0-1.41421356z" fill-rule="evenodd" transform="matrix(0 1 -1 0 11 1)"/></symbol><symbol id="icon-eds-i-arrow-right-medium" viewBox="0 0 24 24"><path d="m12.728 3.293 7.98 7.99a.996.996 0 0 1 .281.561l.011.157c0 .32-.15.605-.384.788l-7.908 7.918a1 1 0 0 1-1.416-1.414L17.576 13H4a1 1 0 0 1 0-2h13.598l-6.285-6.293a1 1 0 0 1-.082-1.32l.083-.095a1 1 0 0 1 1.414.001Z"/></symbol><symbol id="icon-eds-i-chevron-down-medium" viewBox="0 0 16 16"><path d="m2.00087166 7h4.99912834v-4.99912834c0-.55276616.44386482-1.00087166 1-1.00087166.55228475 0 1 .44463086 1 1.00087166v4.99912834h4.9991283c.5527662 0 1.0008717.44386482 1.0008717 1 0 .55228475-.4446309 1-1.0008717 1h-4.9991283v4.9991283c0 .5527662-.44386482 1.0008717-1 1.0008717-.55228475 0-1-.4446309-1-1.0008717v-4.9991283h-4.99912834c-.55276616 0-1.00087166-.44386482-1.00087166-1 0-.55228475.44463086-1 1.00087166-1z" fill-rule="evenodd"/></symbol><symbol id="icon-eds-i-chevron-down-small" viewBox="0 0 16 16"><path d="M13.692 5.278a1 1 0 0 1 .03 1.414L9.103 11.51a1.491 1.491 0 0 1-2.188.019L2.278 6.692a1 1 0 0 1 1.444-1.384L8 9.771l4.278-4.463a1 1 0 0 1 1.318-.111l.096.081Z"/></symbol><symbol id="icon-eds-i-chevron-right-medium" viewBox="0 0 10 10"><path d="m5.96738168 4.70639573 2.39518594-2.41447274c.37913917-.38219212.98637524-.38972225 1.35419292-.01894278.37750606.38054586.37784436.99719163-.00013556 1.37821513l-4.03074001 4.06319683c-.37758093.38062133-.98937525.38100976-1.367372-.00003075l-4.03091981-4.06337806c-.37759778-.38063832-.38381821-.99150444-.01600053-1.3622839.37750607-.38054587.98772445-.38240057 1.37006824.00302197l2.39538588 2.4146743.96295325.98624457z" fill-rule="evenodd" transform="matrix(0 -1 1 0 0 10)"/></symbol><symbol id="icon-eds-i-chevron-right-small" viewBox="0 0 10 10"><path d="m5.96738168 4.70639573 2.39518594-2.41447274c.37913917-.38219212.98637524-.38972225 1.35419292-.01894278.37750606.38054586.37784436.99719163-.00013556 1.37821513l-4.03074001 4.06319683c-.37758093.38062133-.98937525.38100976-1.367372-.00003075l-4.03091981-4.06337806c-.37759778-.38063832-.38381821-.99150444-.01600053-1.3622839.37750607-.38054587.98772445-.38240057 1.37006824.00302197l2.39538588 2.4146743.96295325.98624457z" fill-rule="evenodd" transform="matrix(0 -1 1 0 0 10)"/></symbol><symbol id="icon-eds-i-chevron-up-medium" viewBox="0 0 16 16"><path d="m2.00087166 7h11.99825664c.5527662 0 1.0008717.44386482 1.0008717 1 0 .55228475-.4446309 1-1.0008717 1h-11.99825664c-.55276616 0-1.00087166-.44386482-1.00087166-1 0-.55228475.44463086-1 1.00087166-1z" fill-rule="evenodd"/></symbol><symbol id="icon-eds-i-close-medium" viewBox="0 0 16 16"><path d="m2.29679575 12.2772478c-.39658757.3965876-.39438847 1.0328109-.00062148 1.4265779.39651227.3965123 1.03246768.3934888 1.42657791-.0006214l4.27724782-4.27724787 4.2772478 4.27724787c.3965876.3965875 1.0328109.3943884 1.4265779.0006214.3965123-.3965122.3934888-1.0324677-.0006214-1.4265779l-4.27724787-4.2772478 4.27724787-4.27724782c.3965875-.39658757.3943884-1.03281091.0006214-1.42657791-.3965122-.39651226-1.0324677-.39348875-1.4265779.00062148l-4.2772478 4.27724782-4.27724782-4.27724782c-.39658757-.39658757-1.03281091-.39438847-1.42657791-.00062148-.39651226.39651227-.39348875 1.03246768.00062148 1.42657791l4.27724782 4.27724782z" fill-rule="evenodd"/></symbol><symbol id="icon-eds-i-download-medium" viewBox="0 0 16 16"><path d="m12.9975267 12.999368c.5467123 0 1.0024733.4478567 1.0024733 1.000316 0 .5563109-.4488226 1.000316-1.0024733 1.000316h-9.99505341c-.54671233 0-1.00247329-.4478567-1.00247329-1.000316 0-.5563109.44882258-1.000316 1.00247329-1.000316zm-4.9975267-11.999368c.55228475 0 1 .44497754 1 .99589209v6.80214418l2.4816273-2.48241149c.3928222-.39294628 1.0219732-.4006883 1.4030652-.01947579.3911302.39125371.3914806 1.02525073-.0001404 1.41699553l-4.17620792 4.17752758c-.39120769.3913313-1.02508144.3917306-1.41671995-.0000316l-4.17639421-4.17771394c-.39122513-.39134876-.39767006-1.01940351-.01657797-1.40061601.39113012-.39125372 1.02337105-.3931606 1.41951349.00310701l2.48183446 2.48261871v-6.80214418c0-.55001601.44386482-.99589209 1-.99589209z" fill-rule="evenodd"/></symbol><symbol id="icon-eds-i-info-filled-medium" viewBox="0 0 18 18"><path d="m9 0c4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9zm0 7h-1.5l-.11662113.00672773c-.49733868.05776511-.88337887.48043643-.88337887.99327227 0 .47338693.32893365.86994729.77070917.97358929l.1126697.01968298.11662113.00672773h.5v3h-.5l-.11662113.0067277c-.42082504.0488782-.76196299.3590206-.85696816.7639815l-.01968298.1126697-.00672773.1166211.00672773.1166211c.04887817.4208251.35902055.761963.76398144.8569682l.1126697.019683.11662113.0067277h3l.1166211-.0067277c.4973387-.0577651.8833789-.4804365.8833789-.9932723 0-.4733869-.3289337-.8699473-.7707092-.9735893l-.1126697-.019683-.1166211-.0067277h-.5v-4l-.00672773-.11662113c-.04887817-.42082504-.35902055-.76196299-.76398144-.85696816l-.1126697-.01968298zm0-3.25c-.69035594 0-1.25.55964406-1.25 1.25s.55964406 1.25 1.25 1.25 1.25-.55964406 1.25-1.25-.55964406-1.25-1.25-1.25z" fill-rule="evenodd"/></symbol><symbol id="icon-eds-i-mail-medium" viewBox="0 0 24 24"><path d="m19.462 0c1.413 0 2.538 1.184 2.538 2.619v12.762c0 1.435-1.125 2.619-2.538 2.619h-16.924c-1.413 0-2.538-1.184-2.538-2.619v-12.762c0-1.435 1.125-2.619 2.538-2.619zm.538 5.158-7.378 6.258a2.549 2.549 0 0 1 -3.253-.008l-7.369-6.248v10.222c0 .353.253.619.538.619h16.924c.285 0 .538-.266.538-.619zm-.538-3.158h-16.924c-.264 0-.5.228-.534.542l8.65 7.334c.2.165.492.165.684.007l8.656-7.342-.001-.025c-.044-.3-.274-.516-.531-.516z"/></symbol><symbol id="icon-eds-i-menu-medium" viewBox="0 0 24 24"><path d="M21 4a1 1 0 0 1 0 2H3a1 1 0 1 1 0-2h18Zm-4 7a1 1 0 0 1 0 2H3a1 1 0 0 1 0-2h14Zm4 7a1 1 0 0 1 0 2H3a1 1 0 0 1 0-2h18Z"/></symbol><symbol id="icon-eds-i-search-medium" viewBox="0 0 24 24"><path d="M11 1c5.523 0 10 4.477 10 10 0 2.4-.846 4.604-2.256 6.328l3.963 3.965a1 1 0 0 1-1.414 1.414l-3.965-3.963A9.959 9.959 0 0 1 11 21C5.477 21 1 16.523 1 11S5.477 1 11 1Zm0 2a8 8 0 1 0 0 16 8 8 0 0 0 0-16Z"/></symbol><symbol id="icon-eds-i-user-single-medium" viewBox="0 0 24 24"><path d="M12 1a5 5 0 1 1 0 10 5 5 0 0 1 0-10Zm0 2a3 3 0 1 0 0 6 3 3 0 0 0 0-6Zm-.406 9.008a8.965 8.965 0 0 1 6.596 2.494A9.161 9.161 0 0 1 21 21.025V22a1 1 0 0 1-1 1H4a1 1 0 0 1-1-1v-.985c.05-4.825 3.815-8.777 8.594-9.007Zm.39 1.992-.299.006c-3.63.175-6.518 3.127-6.678 6.775L5 21h13.998l-.009-.268a7.157 7.157 0 0 0-1.97-4.573l-.214-.213A6.967 6.967 0 0 0 11.984 14Z"/></symbol><symbol id="icon-eds-i-warning-filled-medium" viewBox="0 0 18 18"><path d="m9 11.75c.69035594 0 1.25.5596441 1.25 1.25s-.55964406 1.25-1.25 1.25-1.25-.5596441-1.25-1.25.55964406-1.25 1.25-1.25zm.41320045-7.75c.55228475 0 1.00000005.44771525 1.00000005 1l-.0034543.08304548-.3333333 4c-.043191.51829212-.47645714.91695452-.99654578.91695452h-.15973424c-.52008864 0-.95335475-.3986624-.99654576-.91695452l-.33333333-4c-.04586475-.55037702.36312325-1.03372649.91350028-1.07959124l.04148683-.00259031zm-.41320045 14c-4.97056275 0-9-4.0294373-9-9 0-4.97056275 4.02943725-9 9-9 4.9705627 0 9 4.02943725 9 9 0 4.9705627-4.0294373 9-9 9z" fill-rule="evenodd"/></symbol><symbol id="icon-expand-image" viewBox="0 0 18 18"><path d="m7.49754099 11.9178212c.38955542-.3895554.38761957-1.0207846-.00290473-1.4113089-.39324695-.3932469-1.02238878-.3918247-1.41130883-.0029047l-4.10273549 4.1027355.00055454-3.5103985c.00008852-.5603185-.44832171-1.006032-1.00155062-1.0059446-.53903074.0000852-.97857527.4487442-.97866268 1.0021075l-.00093318 5.9072465c-.00008751.553948.44841131 1.001882 1.00174994 1.0017946l5.906983-.0009331c.5539233-.0000875 1.00197907-.4486389 1.00206646-1.0018679.00008515-.5390307-.45026621-.9784332-1.00588841-.9783454l-3.51010549.0005545zm3.00571741-5.83449376c-.3895554.38955541-.3876196 1.02078454.0029047 1.41130883.393247.39324696 1.0223888.39182478 1.4113089.00290473l4.1027355-4.10273549-.0005546 3.5103985c-.0000885.56031852.4483217 1.006032 1.0015506 1.00594461.5390308-.00008516.9785753-.44874418.9786627-1.00210749l.0009332-5.9072465c.0000875-.553948-.4484113-1.00188204-1.0017499-1.00179463l-5.906983.00093313c-.5539233.00008751-1.0019791.44863892-1.0020665 1.00186784-.0000852.53903074.4502662.97843325 1.0058884.97834547l3.5101055-.00055449z" fill-rule="evenodd"/></symbol><symbol id="icon-github" viewBox="0 0 100 100"><path fill-rule="evenodd" clip-rule="evenodd" d="M48.854 0C21.839 0 0 22 0 49.217c0 21.756 13.993 40.172 33.405 46.69 2.427.49 3.316-1.059 3.316-2.362 0-1.141-.08-5.052-.08-9.127-13.59 2.934-16.42-5.867-16.42-5.867-2.184-5.704-5.42-7.17-5.42-7.17-4.448-3.015.324-3.015.324-3.015 4.934.326 7.523 5.052 7.523 5.052 4.367 7.496 11.404 5.378 14.235 4.074.404-3.178 1.699-5.378 3.074-6.6-10.839-1.141-22.243-5.378-22.243-24.283 0-5.378 1.94-9.778 5.014-13.2-.485-1.222-2.184-6.275.486-13.038 0 0 4.125-1.304 13.426 5.052a46.97 46.97 0 0 1 12.214-1.63c4.125 0 8.33.571 12.213 1.63 9.302-6.356 13.427-5.052 13.427-5.052 2.67 6.763.97 11.816.485 13.038 3.155 3.422 5.015 7.822 5.015 13.2 0 18.905-11.404 23.06-22.324 24.283 1.78 1.548 3.316 4.481 3.316 9.126 0 6.6-.08 11.897-.08 13.526 0 1.304.89 2.853 3.316 2.364 19.412-6.52 33.405-24.935 33.405-46.691C97.707 22 75.788 0 48.854 0z"/></symbol><symbol id="icon-springer-arrow-left"><path d="M15 7a1 1 0 000-2H3.385l2.482-2.482a.994.994 0 00.02-1.403 1.001 1.001 0 00-1.417 0L.294 5.292a1.001 1.001 0 000 1.416l4.176 4.177a.991.991 0 001.4.016 1 1 0 00-.003-1.42L3.385 7H15z"/></symbol><symbol id="icon-springer-arrow-right"><path d="M1 7a1 1 0 010-2h11.615l-2.482-2.482a.994.994 0 01-.02-1.403 1.001 1.001 0 011.417 0l4.176 4.177a1.001 1.001 0 010 1.416l-4.176 4.177a.991.991 0 01-1.4.016 1 1 0 01.003-1.42L12.615 7H1z"/></symbol><symbol id="icon-submit-open" viewBox="0 0 16 17"><path d="M12 0c1.10457 0 2 .895431 2 2v5c0 .276142-.223858.5-.5.5S13 7.276142 13 7V2c0-.512836-.38604-.935507-.883379-.993272L12 1H6v3c0 1.10457-.89543 2-2 2H1v8c0 .512836.38604.935507.883379.993272L2 15h6.5c.276142 0 .5.223858.5.5s-.223858.5-.5.5H2c-1.104569 0-2-.89543-2-2V5.828427c0-.530433.210714-1.039141.585786-1.414213L4.414214.585786C4.789286.210714 5.297994 0 5.828427 0H12Zm3.41 11.14c.250899.250899.250274.659726 0 .91-.242954.242954-.649606.245216-.9-.01l-1.863671-1.900337.001043 5.869492c0 .356992-.289839.637138-.647372.637138-.347077 0-.647371-.285256-.647371-.637138l-.001043-5.869492L9.5 12.04c-.253166.258042-.649726.260274-.9.01-.242954-.242954-.252269-.657731 0-.91l2.942184-2.951303c.250908-.250909.66127-.252277.91353-.000017L15.41 11.14ZM5 1.413 1.413 5H4c.552285 0 1-.447715 1-1V1.413ZM11 3c.276142 0 .5.223858.5.5s-.223858.5-.5.5H7.5c-.276142 0-.5-.223858-.5-.5s.223858-.5.5-.5H11Zm0 2c.276142 0 .5.223858.5.5s-.223858.5-.5.5H7.5c-.276142 0-.5-.223858-.5-.5s.223858-.5.5-.5H11Z" fill-rule="nonzero"/></symbol></svg> </div> </body> </html>