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data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innhold</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">skjul</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Til toppen)</div> </a> </li> <li id="toc-Definisjon" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Definisjon"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Definisjon</span> </div> </a> <ul id="toc-Definisjon-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Svakheter" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Svakheter"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Svakheter</span> </div> </a> <ul id="toc-Svakheter-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Andre_måleskalaer" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Andre_måleskalaer"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Andre måleskalaer</span> </div> </a> <button aria-controls="toc-Andre_måleskalaer-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Vis/skjul underseksjonen Andre måleskalaer</span> </button> <ul id="toc-Andre_måleskalaer-sublist" class="vector-toc-list"> <li id="toc-Magnitude" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Magnitude"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Magnitude</span> </div> </a> <ul id="toc-Magnitude-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Intensitet" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Intensitet"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Intensitet</span> </div> </a> <ul id="toc-Intensitet-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Se_også" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Se_også"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Se også</span> </div> </a> <ul id="toc-Se_også-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referanser" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referanser"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Referanser</span> </div> </a> <ul id="toc-Referanser-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innhold" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul innholdsfortegnelsen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Vis/skjul innholdsfortegnelsen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Richters skala</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til en artikkel på et annet språk. Tilgjengelig på 93 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-93" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">93 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Richterskalaen" title="Richterskalaen – norsk nynorsk" lang="nn" hreflang="nn" data-title="Richterskalaen" data-language-autonym="Norsk nynorsk" data-language-local-name="norsk nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Richterskalaen" title="Richterskalaen – dansk" lang="da" hreflang="da" data-title="Richterskalaen" data-language-autonym="Dansk" data-language-local-name="dansk" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Richterskalan" title="Richterskalan – svensk" lang="sv" hreflang="sv" data-title="Richterskalan" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-fo mw-list-item"><a href="https://fo.wikipedia.org/wiki/Richterstigin" title="Richterstigin – færøysk" lang="fo" hreflang="fo" data-title="Richterstigin" data-language-autonym="Føroyskt" data-language-local-name="færøysk" class="interlanguage-link-target"><span>Føroyskt</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Richterskaal" title="Richterskaal – afrikaans" lang="af" hreflang="af" data-title="Richterskaal" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D9%82%D9%8A%D8%A7%D8%B3_%D8%B1%D9%8A%D8%AE%D8%AA%D8%B1" title="مقياس ريختر – arabisk" lang="ar" hreflang="ar" data-title="مقياس ريختر" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Escala_sismol%C3%B3xica_de_Richter" title="Escala sismolóxica de Richter – asturisk" lang="ast" hreflang="ast" data-title="Escala sismolóxica de Richter" data-language-autonym="Asturianu" data-language-local-name="asturisk" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Rixter_%C5%9Fkalas%C4%B1" title="Rixter şkalası – aserbajdsjansk" lang="az" hreflang="az" data-title="Rixter şkalası" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%B1%DB%8C%D8%B4%D8%AA%D8%B1_%D8%B3%D8%A7%DB%8C%DB%8C" title="ریشتر سایی – søraserbajdsjansk" lang="azb" hreflang="azb" data-title="ریشتر سایی" data-language-autonym="تۆرکجه" data-language-local-name="søraserbajdsjansk" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B0%E0%A6%BF%E0%A6%96%E0%A6%9F%E0%A6%BE%E0%A6%B0_%E0%A6%AE%E0%A6%BE%E0%A6%AA%E0%A6%A8%E0%A7%80" title="রিখটার মাপনী – bengali" lang="bn" hreflang="bn" data-title="রিখটার মাপনী" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Richter_kui-b%C3%B4%CD%98" title="Richter kui-bô͘ – minnan" lang="nan" hreflang="nan" data-title="Richter kui-bô͘" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%B0%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%9F%E0%A4%B0_%E0%A4%AA%E0%A5%88%E0%A4%AE%E0%A4%BE%E0%A4%A8%E0%A4%BE" title="रिक्टर पैमाना – bihari" lang="bh" hreflang="bh" data-title="रिक्टर पैमाना" data-language-autonym="भोजपुरी" data-language-local-name="bihari" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A1%D0%BA%D0%B0%D0%BB%D0%B0_%D0%BD%D0%B0_%D0%A0%D0%B8%D1%85%D1%82%D0%B5%D1%80" title="Скала на Рихтер – bulgarsk" lang="bg" hreflang="bg" data-title="Скала на Рихтер" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Richterova_skala" title="Richterova skala – bosnisk" lang="bs" hreflang="bs" data-title="Richterova skala" data-language-autonym="Bosanski" data-language-local-name="bosnisk" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Skeuliad_Richter" title="Skeuliad Richter – bretonsk" lang="br" hreflang="br" data-title="Skeuliad Richter" data-language-autonym="Brezhoneg" data-language-local-name="bretonsk" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Escala_de_Richter" title="Escala de Richter – katalansk" lang="ca" hreflang="ca" data-title="Escala de Richter" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Richterova_stupnice" title="Richterova stupnice – tsjekkisk" lang="cs" hreflang="cs" data-title="Richterova stupnice" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-co mw-list-item"><a href="https://co.wikipedia.org/wiki/Scala_di_Richter" title="Scala di Richter – korsikansk" lang="co" hreflang="co" data-title="Scala di Richter" data-language-autonym="Corsu" data-language-local-name="korsikansk" class="interlanguage-link-target"><span>Corsu</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Graddfa_Richter" title="Graddfa Richter – walisisk" lang="cy" hreflang="cy" data-title="Graddfa Richter" data-language-autonym="Cymraeg" data-language-local-name="walisisk" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Richterskala" title="Richterskala – tysk" lang="de" hreflang="de" data-title="Richterskala" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Richteri_skaala" title="Richteri skaala – estisk" lang="et" hreflang="et" data-title="Richteri skaala" data-language-autonym="Eesti" data-language-local-name="estisk" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9A%CE%BB%CE%AF%CE%BC%CE%B1%CE%BA%CE%B1_%CE%A1%CE%AF%CF%87%CF%84%CE%B5%CF%81" title="Κλίμακα Ρίχτερ – gresk" lang="el" hreflang="el" data-title="Κλίμακα Ρίχτερ" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Richter_scale" title="Richter scale – engelsk" lang="en" hreflang="en" data-title="Richter scale" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Escala_sismol%C3%B3gica_de_Richter" title="Escala sismológica de Richter – spansk" lang="es" hreflang="es" data-title="Escala sismológica de Richter" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Skalo_de_Richter" title="Skalo de Richter – esperanto" lang="eo" hreflang="eo" data-title="Skalo de Richter" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Richter_eskala" title="Richter eskala – baskisk" lang="eu" hreflang="eu" data-title="Richter eskala" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%85%D9%82%DB%8C%D8%A7%D8%B3_%D8%B1%DB%8C%D8%B4%D8%AA%D8%B1" title="مقیاس ریشتر – persisk" lang="fa" hreflang="fa" data-title="مقیاس ریشتر" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/%C3%89chelle_de_Richter" title="Échelle de Richter – fransk" lang="fr" hreflang="fr" data-title="Échelle de Richter" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Skaal_fan_Richter" title="Skaal fan Richter – vestfrisisk" lang="fy" hreflang="fy" data-title="Skaal fan Richter" data-language-autonym="Frysk" data-language-local-name="vestfrisisk" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-fur mw-list-item"><a href="https://fur.wikipedia.org/wiki/Scjale_Richter" title="Scjale Richter – friuliansk" lang="fur" hreflang="fur" data-title="Scjale Richter" data-language-autonym="Furlan" data-language-local-name="friuliansk" class="interlanguage-link-target"><span>Furlan</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Sc%C3%A1la_Richter" title="Scála Richter – irsk" lang="ga" hreflang="ga" data-title="Scála Richter" data-language-autonym="Gaeilge" data-language-local-name="irsk" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Escala_de_Richter" title="Escala de Richter – galisisk" lang="gl" hreflang="gl" data-title="Escala de Richter" data-language-autonym="Galego" data-language-local-name="galisisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%B0%E0%AA%BF%E0%AA%95%E0%AA%9F%E0%AA%B0_%E0%AA%AE%E0%AB%87%E0%AA%97%E0%AB%8D%E0%AA%A8%E0%AB%80%E0%AA%9F%E0%AA%AF%E0%AB%81%E0%AA%A1_%E0%AA%B8%E0%AB%8D%E0%AA%95%E0%AB%87%E0%AA%B2" title="રિકટર મેગ્નીટયુડ સ્કેલ – gujarati" lang="gu" hreflang="gu" data-title="રિકટર મેગ્નીટયુડ સ્કેલ" data-language-autonym="ગુજરાતી" data-language-local-name="gujarati" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%A6%AD%ED%84%B0_%EA%B7%9C%EB%AA%A8" title="릭터 규모 – koreansk" lang="ko" hreflang="ko" data-title="릭터 규모" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8C%D5%AB%D5%AD%D5%BF%D5%A5%D6%80%D5%AB_%D5%BD%D5%A1%D5%B6%D5%A4%D5%B2%D5%A1%D5%AF" title="Ռիխտերի սանդղակ – armensk" lang="hy" hreflang="hy" data-title="Ռիխտերի սանդղակ" data-language-autonym="Հայերեն" data-language-local-name="armensk" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B0%E0%A4%BF%E0%A4%95%E0%A5%8D%E0%A4%9F%E0%A4%B0_%E0%A4%AA%E0%A5%88%E0%A4%AE%E0%A4%BE%E0%A4%A8%E0%A4%BE" title="रिक्टर पैमाना – hindi" lang="hi" hreflang="hi" data-title="रिक्टर पैमाना" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Richterova_ljestvica" title="Richterova ljestvica – kroatisk" lang="hr" hreflang="hr" data-title="Richterova ljestvica" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Skalo_di_Richter" title="Skalo di Richter – ido" lang="io" hreflang="io" data-title="Skalo di Richter" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Skala_Richter" title="Skala Richter – indonesisk" lang="id" hreflang="id" data-title="Skala Richter" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Scala_Richter" title="Scala Richter – italiensk" lang="it" hreflang="it" data-title="Scala Richter" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A1%D7%95%D7%9C%D7%9D_%D7%A8%D7%99%D7%9B%D7%98%D7%A8" title="סולם ריכטר – hebraisk" lang="he" hreflang="he" data-title="סולם ריכטר" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Skala_Richter" title="Skala Richter – javanesisk" lang="jv" hreflang="jv" data-title="Skala Richter" data-language-autonym="Jawa" data-language-local-name="javanesisk" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%B0%E0%B2%BF%E0%B2%95%E0%B3%8D%E0%B2%9F%E0%B2%B0%E0%B3%8D_%E0%B2%AE%E0%B2%BE%E0%B2%AA%E0%B2%95" title="ರಿಕ್ಟರ್ ಮಾಪಕ – kannada" lang="kn" hreflang="kn" data-title="ರಿಕ್ಟರ್ ಮಾಪಕ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A0%E1%83%98%E1%83%AE%E1%83%A2%E1%83%94%E1%83%A0%E1%83%98%E1%83%A1_%E1%83%A1%E1%83%99%E1%83%90%E1%83%9A%E1%83%90" title="რიხტერის სკალა – georgisk" lang="ka" hreflang="ka" data-title="რიხტერის სკალა" data-language-autonym="ქართული" data-language-local-name="georgisk" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Mayitid" title="Mayitid – haitisk" lang="ht" hreflang="ht" data-title="Mayitid" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haitisk" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Scala_Richteriana" title="Scala Richteriana – latin" lang="la" hreflang="la" data-title="Scala Richteriana" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Rihtera_skala" title="Rihtera skala – latvisk" lang="lv" hreflang="lv" data-title="Rihtera skala" data-language-autonym="Latviešu" data-language-local-name="latvisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Sjaol_van_Richter" title="Sjaol van Richter – limburgsk" lang="li" hreflang="li" data-title="Sjaol van Richter" data-language-autonym="Limburgs" data-language-local-name="limburgsk" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Richter-sk%C3%A1la" title="Richter-skála – ungarsk" lang="hu" hreflang="hu" data-title="Richter-skála" data-language-autonym="Magyar" data-language-local-name="ungarsk" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A0%D0%B8%D1%85%D1%82%D0%B5%D1%80%D0%BE%D0%B2%D0%B0_%D1%81%D0%BA%D0%B0%D0%BB%D0%B0" title="Рихтерова скала – makedonsk" lang="mk" hreflang="mk" data-title="Рихтерова скала" data-language-autonym="Македонски" data-language-local-name="makedonsk" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B1%E0%B4%BF%E0%B4%95%E0%B5%8D%E0%B4%9F%E0%B5%BC_%E0%B4%AE%E0%B4%BE%E0%B4%A8%E0%B4%95%E0%B4%82" title="റിക്ടർ മാനകം – malayalam" lang="ml" hreflang="ml" data-title="റിക്ടർ മാനകം" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%B0%E0%A4%BF%E0%A4%B6%E0%A5%8D%E0%A4%9F%E0%A4%B0_%E0%A4%AE%E0%A4%BE%E0%A4%AA%E0%A4%A8%E0%A4%AA%E0%A4%A6%E0%A5%8D%E0%A4%A7%E0%A4%A4" title="रिश्टर मापनपद्धत – marathi" lang="mr" hreflang="mr" data-title="रिश्टर मापनपद्धत" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%A0%E1%83%98%E1%83%AE%E1%83%A2%E1%83%94%E1%83%A0%E1%83%98%E1%83%A8_%E1%83%A1%E1%83%99%E1%83%90%E1%83%9A%E1%83%90" title="რიხტერიშ სკალა – mingrelsk" lang="xmf" hreflang="xmf" data-title="რიხტერიშ სკალა" data-language-autonym="მარგალური" data-language-local-name="mingrelsk" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%AC%D8%AF%D9%88%D9%84_%D8%B1%D9%8A%D8%AE%D8%AA%D8%B1" title="جدول ريختر – egyptisk arabisk" lang="arz" hreflang="arz" data-title="جدول ريختر" data-language-autonym="مصرى" data-language-local-name="egyptisk arabisk" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Skala_Richter" title="Skala Richter – malayisk" lang="ms" hreflang="ms" data-title="Skala Richter" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A0%D0%B8%D1%85%D1%82%D0%B5%D1%80%D0%B8%D0%B9%D0%BD_%D1%88%D0%B0%D1%82%D0%B0%D0%BB%D0%B1%D0%B0%D1%80" title="Рихтерийн шаталбар – mongolsk" lang="mn" hreflang="mn" data-title="Рихтерийн шаталбар" data-language-autonym="Монгол" data-language-local-name="mongolsk" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Schaal_van_Richter" title="Schaal van Richter – nederlandsk" lang="nl" hreflang="nl" data-title="Schaal van Richter" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%AD%E3%83%BC%E3%82%AB%E3%83%AB%E3%83%BB%E3%83%9E%E3%82%B0%E3%83%8B%E3%83%81%E3%83%A5%E3%83%BC%E3%83%89" title="ローカル・マグニチュード – japansk" lang="ja" hreflang="ja" data-title="ローカル・マグニチュード" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Magnitud_d%27un_t%C3%A8rratremol" title="Magnitud d'un tèrratremol – oksitansk" lang="oc" hreflang="oc" data-title="Magnitud d'un tèrratremol" data-language-autonym="Occitan" data-language-local-name="oksitansk" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%B0%E0%AC%BF%E0%AC%95%E0%AD%8D%E0%AC%9F%E0%AC%B0_%E0%AC%B8%E0%AD%8D%E0%AC%95%E0%AD%87%E0%AC%B2" title="ରିକ୍ଟର ସ୍କେଲ – odia" lang="or" hreflang="or" data-title="ରିକ୍ଟର ସ୍କେଲ" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="odia" class="interlanguage-link-target"><span>ଓଡ଼ିଆ</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Zilzila_magnitudasi" title="Zilzila magnitudasi – usbekisk" lang="uz" hreflang="uz" data-title="Zilzila magnitudasi" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="usbekisk" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B0%E0%A8%BF%E0%A8%95%E0%A8%9F%E0%A8%B0_%E0%A8%B8%E0%A8%95%E0%A9%87%E0%A8%B2" title="ਰਿਕਟਰ ਸਕੇਲ – panjabi" lang="pa" hreflang="pa" data-title="ਰਿਕਟਰ ਸਕੇਲ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Scala_%C3%ABd_Richter" title="Scala ëd Richter – piemontesisk" lang="pms" hreflang="pms" data-title="Scala ëd Richter" data-language-autonym="Piemontèis" data-language-local-name="piemontesisk" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Skala_Richtera" title="Skala Richtera – polsk" lang="pl" hreflang="pl" data-title="Skala Richtera" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Escala_de_Richter" title="Escala de Richter – portugisisk" lang="pt" hreflang="pt" data-title="Escala de Richter" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Scara_de_magnitudine_Richter" title="Scara de magnitudine Richter – rumensk" lang="ro" hreflang="ro" data-title="Scara de magnitudine Richter" data-language-autonym="Română" data-language-local-name="rumensk" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A8%D0%BA%D0%B0%D0%BB%D0%B0_%D0%A0%D0%B8%D1%85%D1%82%D0%B5%D1%80%D0%B0" title="Шкала Рихтера – russisk" lang="ru" hreflang="ru" data-title="Шкала Рихтера" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Shkalla_e_Rihterit" title="Shkalla e Rihterit – albansk" lang="sq" hreflang="sq" data-title="Shkalla e Rihterit" data-language-autonym="Shqip" data-language-local-name="albansk" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Scala_Richter" title="Scala Richter – siciliansk" lang="scn" hreflang="scn" data-title="Scala Richter" data-language-autonym="Sicilianu" data-language-local-name="siciliansk" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Richter_scale" title="Richter scale – enkel engelsk" lang="en-simple" hreflang="en-simple" data-title="Richter scale" data-language-autonym="Simple English" data-language-local-name="enkel engelsk" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Lok%C3%A1lne_magnit%C3%BAdo" title="Lokálne magnitúdo – slovakisk" lang="sk" hreflang="sk" data-title="Lokálne magnitúdo" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Richterjeva_potresna_lestvica" title="Richterjeva potresna lestvica – slovensk" lang="sl" hreflang="sl" data-title="Richterjeva potresna lestvica" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Rikter_Cabir" title="Rikter Cabir – somali" lang="so" hreflang="so" data-title="Rikter Cabir" data-language-autonym="Soomaaliga" data-language-local-name="somali" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A0%D0%B8%D1%85%D1%82%D0%B5%D1%80%D0%BE%D0%B2%D0%B0_%D1%81%D0%BA%D0%B0%D0%BB%D0%B0_%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D1%83%D0%B4%D0%B5_%D0%BF%D0%BE%D1%82%D1%80%D0%B5%D1%81%D0%B0" title="Рихтерова скала магнитуде потреса – serbisk" lang="sr" hreflang="sr" data-title="Рихтерова скала магнитуде потреса" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Richterova_skala" title="Richterova skala – serbokroatisk" lang="sh" hreflang="sh" data-title="Richterova skala" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Richterin_asteikko" title="Richterin asteikko – finsk" lang="fi" hreflang="fi" data-title="Richterin asteikko" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Eskalang_sismolohikong_Richter" title="Eskalang sismolohikong Richter – tagalog" lang="tl" hreflang="tl" data-title="Eskalang sismolohikong Richter" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%B0%E0%AE%BF%E0%AE%95%E0%AF%8D%E0%AE%9F%E0%AE%B0%E0%AF%8D_%E0%AE%85%E0%AE%B3%E0%AE%B5%E0%AF%81" title="ரிக்டர் அளவு – tamil" lang="ta" hreflang="ta" data-title="ரிக்டர் அளவு" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%A0%D0%B8%D1%85%D1%82%D0%B5%D1%80_%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D1%83%D0%B4%D0%B0_%D1%88%D0%BA%D0%B0%D0%BB%D0%B0%D1%81%D1%8B" title="Рихтер магнитуда шкаласы – tatarisk" lang="tt" hreflang="tt" data-title="Рихтер магнитуда шкаласы" data-language-autonym="Татарча / tatarça" data-language-local-name="tatarisk" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A1%E0%B8%B2%E0%B8%95%E0%B8%A3%E0%B8%B2%E0%B8%A3%E0%B8%B4%E0%B8%81%E0%B9%80%E0%B8%95%E0%B8%AD%E0%B8%A3%E0%B9%8C" title="มาตราริกเตอร์ – thai" lang="th" hreflang="th" data-title="มาตราริกเตอร์" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D2%B6%D0%B0%D0%B4%D0%B2%D0%B0%D0%BB%D0%B8_%D0%A0%D0%B8%D1%85%D1%82%D0%B5%D1%80" title="Ҷадвали Рихтер – tadsjikisk" lang="tg" hreflang="tg" data-title="Ҷадвали Рихтер" data-language-autonym="Тоҷикӣ" data-language-local-name="tadsjikisk" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Richter_%C3%B6l%C3%A7e%C4%9Fi" title="Richter ölçeği – tyrkisk" lang="tr" hreflang="tr" data-title="Richter ölçeği" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A8%D0%BA%D0%B0%D0%BB%D0%B0_%D0%A0%D1%96%D1%85%D1%82%D0%B5%D1%80%D0%B0" title="Шкала Ріхтера – ukrainsk" lang="uk" hreflang="uk" data-title="Шкала Ріхтера" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%B1%DB%8C%DA%A9%D9%B9%D8%B1_%D8%A7%D8%B3%DA%A9%DB%8C%D9%84" title="ریکٹر اسکیل – urdu" lang="ur" hreflang="ur" data-title="ریکٹر اسکیل" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/Sca%C5%82a_sismo%C5%82%C3%B2zega_de_Richter" title="Scała sismołòzega de Richter – venetiansk" lang="vec" hreflang="vec" data-title="Scała sismołòzega de Richter" data-language-autonym="Vèneto" data-language-local-name="venetiansk" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90%E1%BB%99_Richter" title="Độ Richter – vietnamesisk" lang="vi" hreflang="vi" data-title="Độ Richter" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wikipedia.org/wiki/Sch%C3%A5le_di_Richter" title="Schåle di Richter – vallonsk" lang="wa" hreflang="wa" data-title="Schåle di Richter" data-language-autonym="Walon" data-language-local-name="vallonsk" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-vls mw-list-item"><a href="https://vls.wikipedia.org/wiki/Richterschoale" title="Richterschoale – vestflamsk" lang="vls" hreflang="vls" data-title="Richterschoale" data-language-autonym="West-Vlams" data-language-local-name="vestflamsk" class="interlanguage-link-target"><span>West-Vlams</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Escala_hin_magnitud_Richter" title="Escala hin magnitud Richter – waray-waray" lang="war" hreflang="war" data-title="Escala hin magnitud Richter" data-language-autonym="Winaray" data-language-local-name="waray-waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E9%87%8C%E6%B0%8F%E9%9C%87%E7%BA%A7" title="里氏震级 – wu" lang="wuu" hreflang="wuu" data-title="里氏震级" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%A8%D7%99%D7%9B%D7%98%D7%A2%D7%A8_%D7%A1%D7%A7%D7%90%D7%9C%D7%A2" title="ריכטער סקאלע – jiddisk" lang="yi" hreflang="yi" data-title="ריכטער סקאלע" data-language-autonym="ייִדיש" data-language-local-name="jiddisk" 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class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Utseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">skjul</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Fra Wikipedia, den frie encyklopedi</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nb" dir="ltr"><p><b>Richters skala</b> er en <a href="/wiki/Logaritmisk_skala" title="Logaritmisk skala">logaritmisk</a> lokalmagnitudeskala som ble etablert for å sammenligne styrken av ulike <a href="/wiki/Jordskjelv" title="Jordskjelv">jordskjelv</a> i <a href="/wiki/California" title="California">California</a>. Den ble utviklet av <a href="/wiki/Charles_Francis_Richter" title="Charles Francis Richter">Charles Francis Richter</a> og <a href="/wiki/Beno_Gutenberg" title="Beno Gutenberg">Beno Gutenberg</a> ved <a href="/wiki/California_Institute_of_Technology" title="California Institute of Technology">California Institute of Technology</a>, <a href="/wiki/USA" title="USA">USA</a>, i <a href="/wiki/1935" title="1935">1935</a>. </p><p>Metoden anses som foreldet: Den ble faset ut i løpet av 1970-tallet. Det er vanligvis <i>ikke</i> Richters skala som brukes for å måle styrken til jordskjelv, det er nesten alltid <a href="/wiki/Momentmagnitude" title="Momentmagnitude">momentmagnitude</a> som brukes.<sup id="cite_ref-MperElgamal_1-0" class="reference"><a href="#cite_note-MperElgamal-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-USGSMagPolicy_2-0" class="reference"><a href="#cite_note-USGSMagPolicy-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> At det i meldinger om jordskjelv i mange massemedier likevel tales om «... på Richters skala», er dette som regel å oppfatte av en tilføyelse til den daglige melding fordi den journalistiske bearbeidelse foretas av ikke-fagfolk. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Definisjon">Definisjon</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richters_skala&veaction=edit&section=1" title="Rediger avsnitt: Definisjon" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Richters_skala&action=edit&section=1" title="Rediger kildekoden til seksjonen Definisjon"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Richters skala baserer seg på største målte amplitude målt på en Wood-Anderson <a href="/wiki/Seismograf" title="Seismograf">seismograf</a>, plassert i California og nøyaktig 100 km fra jordskjelvets <a href="/wiki/Episenter" class="mw-redirect" title="Episenter">episenter</a>.<sup id="cite_ref-MperElgamal_1-1" class="reference"><a href="#cite_note-MperElgamal-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Skalaen er logaritmisk, og definert slik at et jordskjelvopptak målt til <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {L} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">L</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {L} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9ee522f879b318595175f74c234c37c241bb131a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.514ex; height:2.509ex;" alt="{\displaystyle M_{\mathrm {L} }}"></span> = 5.0 på Richters skala har 10 ganger større maksimalutslag enn et opptak med <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {L} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">L</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {L} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9ee522f879b318595175f74c234c37c241bb131a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.514ex; height:2.509ex;" alt="{\displaystyle M_{\mathrm {L} }}"></span> = 4.0. Denne måten å beregne styrken på ble utviklet for å skille mellom de mange små skjelvene fra de få store i <a href="/wiki/California" title="California">California</a> på denne tiden. </p><p>Lokalmagnituden <i><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{L}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>L</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{L}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a51380c10c3ca778e845d3a7cead1152798f8da8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.606ex; height:2.509ex;" alt="{\displaystyle M_{L}}"></span></i> på Richters skala er definert ved: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {L} }=\textstyle {\log _{10}(A)}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">L</mi> </mrow> </mrow> </msub> <mo>=</mo> <mstyle displaystyle="false" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msub> <mi>log</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>10</mn> </mrow> </msub> <mo>⁡</mo> <mo stretchy="false">(</mo> <mi>A</mi> <mo stretchy="false">)</mo> </mrow> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {L} }=\textstyle {\log _{10}(A)}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/31573f897ba4b2c2a623f01f93aa1cc10b12e791" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:15.012ex; height:2.843ex;" alt="{\displaystyle M_{\mathrm {L} }=\textstyle {\log _{10}(A)}}"></span></dd></dl> <p>der <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle A}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>A</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle A}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7daff47fa58cdfd29dc333def748ff5fa4c923e3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.743ex; height:2.176ex;" alt="{\displaystyle A}"></span> er største målte utslag målte i <a href="/wiki/%CE%9Cm" class="mw-redirect" title="Μm">µm</a> på en Wood-Anderson-seismograf plassert 100 km fra episenteret.<sup id="cite_ref-MperElgamal_1-2" class="reference"><a href="#cite_note-MperElgamal-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Richters skala er en lokalmagnitudeskala. Det vil si at den <i>kun</i> er gyldig i et bestemt område, og for Richters skala er det California. Årsaken til denne svakheten er at man sjelden har seismografer plassert akkurat 100 km fra episenteret, og at man da må bruke grunnfjellets materialegenskaper for å regne seg fram til hvordan utslagene ville vært dersom seismografen sto litt nærmere eller litt lengre fra episenteret. </p><p>Nullpunktet i skalaen ble definert som «en bevegelse i jorden som på 100 <a href="/wiki/Kilometer" title="Kilometer">kilometers</a> avstand kunne registreres av en Wood-Andersen-seismograf med et utslag på 1 <a href="/wiki/Mikrometer" title="Mikrometer">mikrometer</a>». Nullpunktet er altså en meget svak bevegelse i jordskorpen – på den tiden nesten ikke målbar – men poenget var at man ikke skulle behøve å forholde seg til negative verdier, selv om skalaen også støtter dette. Moderne måleinstrumenter kan registrere skjelv med negative verdier på Richters skala. </p> <div class="mw-heading mw-heading2"><h2 id="Svakheter">Svakheter</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richters_skala&veaction=edit&section=2" title="Rediger avsnitt: Svakheter" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Richters_skala&action=edit&section=2" title="Rediger kildekoden til seksjonen Svakheter"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Richters skala har mange svakheter når det gjelder å sammenligne jordskjelvstyrker. Svakhetene kommer av at Richters skala bare tar utgangspunkt i en variabel. </p><p>Det finnes ingen direkte sammenheng mellom Richters skala og jordskjelvets energi. Richters skala bryr seg bare om det største utslaget, og dermed vil et kort jordskjelv med ett stort utslag gi større magnitude enn et langvarig jordskjelv med lavere maksimalutslag, selv om det kan frigjøres mer energi i det sistnevnte. Det er dermed heller ingen direkte sammenheng mellom Richters skala og <a href="/wiki/Momentmagnitude" title="Momentmagnitude">momentmagnitude</a>, som er et direkte mål på jordskjelvets energi og er den størrelsen som vanligvis blir brukt. </p><p>Et jordskjelv kan ha flere forskjellige <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {L} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">L</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {L} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9ee522f879b318595175f74c234c37c241bb131a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.514ex; height:2.509ex;" alt="{\displaystyle M_{\mathrm {L} }}"></span>. En seismograf plassert 100 km sør for episenteret kan gi en helt forskjellig graf enn en seismograf plassert nord for skjelvet. Det kan skyldes jordskjelvets bruddretning, spesielle fjellformasjoner eller andre uheldige forhold. </p><p>Richters skala tar i praksis ikke større verdier enn ~6,8. Dette fordi så store skjelv vil ha større utslag enn en Wood-Anderson seismograf kan klare å måle, og fortsatt være nær nok episenteret.<sup id="cite_ref-USGSMagPolicy_2-1" class="reference"><a href="#cite_note-USGSMagPolicy-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> For eksempel vil en lokalmagnitude <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {L} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">L</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {L} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9ee522f879b318595175f74c234c37c241bb131a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.514ex; height:2.509ex;" alt="{\displaystyle M_{\mathrm {L} }}"></span> = 7.0 tilsvare et utslag på seismografen på 10 m. </p> <div class="mw-heading mw-heading2"><h2 id="Andre_måleskalaer"><span id="Andre_m.C3.A5leskalaer"></span>Andre måleskalaer</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richters_skala&veaction=edit&section=3" title="Rediger avsnitt: Andre måleskalaer" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Richters_skala&action=edit&section=3" title="Rediger kildekoden til seksjonen Andre måleskalaer"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Magnitude">Magnitude</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richters_skala&veaction=edit&section=4" title="Rediger avsnitt: Magnitude" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Richters_skala&action=edit&section=4" title="Rediger kildekoden til seksjonen Magnitude"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Det finnes mange andre mål for magnitude <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>M</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f82cade9898ced02fdd08712e5f0c0151758a0dd" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.442ex; height:2.176ex;" alt="{\displaystyle M}"></span>. Den mest brukte er <a href="/wiki/Momentmagnitude" title="Momentmagnitude">momentmagnitude</a>. For å beregne momentmagnitude tar man inn den frigjorte energien og gir ut en logaritmisk skala, som ofte gir omtrent samme tall som Richters skala.<sup id="cite_ref-MMSperHanks_4-0" class="reference"><a href="#cite_note-MMSperHanks-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Momentmagnituden ble definert slik for å legge til rette for en glattere overgang da Richters skala ble faset ut på <a href="/wiki/1970-tallet" class="mw-redirect" title="1970-tallet">1970-tallet</a>. Dersom et jordskjelv har en momentmagnitude på 5.0 har det ~32 ganger mer energi enn ett med momentmagnitude 4.0. </p><p>Tabellen under sammenligner Richters skala (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {L} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">L</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {L} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9ee522f879b318595175f74c234c37c241bb131a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.514ex; height:2.509ex;" alt="{\displaystyle M_{\mathrm {L} }}"></span>) og momentmagnitude (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {w} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">w</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {w} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/eab2dce5d0ec1d38c3a975516878c3511e2af442" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.673ex; height:2.509ex;" alt="{\displaystyle M_{\mathrm {w} }}"></span>) for jordskjelv i California.<sup id="cite_ref-MMSperHanks_4-1" class="reference"><a href="#cite_note-MMSperHanks-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <table class="sortable wikitable"> <tbody><tr> <th>Dato </th> <th><a href="/w/index.php?title=Seismisk_moment&action=edit&redlink=1" class="new" title="Seismisk moment (ikke skrevet ennå)">Seismisk moment</a> (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {0} }\times 10^{25}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </mrow> </msub> <mo>×</mo> <msup> <mn>10</mn> <mrow class="MJX-TeXAtom-ORD"> <mn>25</mn> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {0} }\times 10^{25}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ac57b8084f1af5c2dd544dfc2ccf51d676adca3e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:10.35ex; height:3.009ex;" alt="{\displaystyle M_{\mathrm {0} }\times 10^{25}}"></span>) </th> <th>Richters skala (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {L} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">L</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {L} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9ee522f879b318595175f74c234c37c241bb131a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.514ex; height:2.509ex;" alt="{\displaystyle M_{\mathrm {L} }}"></span>) </th> <th>Momentmagnitude (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle M_{\mathrm {w} }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>M</mi> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">w</mi> </mrow> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle M_{\mathrm {w} }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/eab2dce5d0ec1d38c3a975516878c3511e2af442" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.673ex; height:2.509ex;" alt="{\displaystyle M_{\mathrm {w} }}"></span>) </th></tr> <tr> <td><a href="/wiki/11._mars" title="11. mars">11. mars</a> <a href="/wiki/1933" title="1933">1933</a> </td> <td>2 </td> <td>6,3 </td> <td>6,2 </td></tr> <tr> <td><a href="/wiki/19._mai" title="19. mai">19. mai</a> <a href="/wiki/1940" title="1940">1940</a> </td> <td>30 </td> <td>6,4 </td> <td>7,0 </td></tr> <tr> <td><a href="/wiki/1._juli" title="1. juli">1. juli</a> <a href="/wiki/1941" title="1941">1941</a> </td> <td>0,9 </td> <td>5,9 </td> <td>6,0 </td></tr> <tr> <td><a href="/wiki/21._oktober" title="21. oktober">21. oktober</a> <a href="/wiki/1942" title="1942">1942</a> </td> <td>9 </td> <td>6,5 </td> <td>6,6 </td></tr> <tr> <td><a href="/wiki/15._mars" title="15. mars">15. mars</a> <a href="/wiki/1946" title="1946">1946</a> </td> <td>1 </td> <td>6,3 </td> <td>6,0 </td></tr> <tr> <td><a href="/wiki/10._april" title="10. april">10. april</a> <a href="/wiki/1947" title="1947">1947</a> </td> <td>7 </td> <td>6,2 </td> <td>6,5 </td></tr> <tr> <td><a href="/wiki/4._desember" title="4. desember">4. desember</a> <a href="/wiki/1948" title="1948">1948</a> </td> <td>1 </td> <td>6,5 </td> <td>6,0 </td></tr> <tr> <td><a href="/wiki/21._juli" title="21. juli">21. juli</a> <a href="/wiki/1952" title="1952">1952</a> </td> <td>200 </td> <td>7,2 </td> <td>7,5 </td></tr> </tbody></table> <p><br /> </p> <div class="mw-heading mw-heading3"><h3 id="Intensitet">Intensitet</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richters_skala&veaction=edit&section=5" title="Rediger avsnitt: Intensitet" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Richters_skala&action=edit&section=5" title="Rediger kildekoden til seksjonen Intensitet"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Magnitudeskalaene er ment å være mål på energien som utløses i jordskjelvets sentrum. I mange tilfeller oppleves dette som misvisende, da den <a href="/wiki/Energi" title="Energi">energien</a> som utløses ved et jordskjelv ikke alltid tilsvarer graden av ødeleggelse. Det er flere faktorer som spiller inn, bl.a. hvordan jorden beveger seg i forhold til det aktuelle <a href="/w/index.php?title=Terreng&action=edit&redlink=1" class="new" title="Terreng (ikke skrevet ennå)">terrenget</a>. For å måle den opplevde styrken til et jordskjelv har det blitt utviklet <a href="/w/index.php?title=Intensitetsskalaer&action=edit&redlink=1" class="new" title="Intensitetsskalaer (ikke skrevet ennå)">intensitetsskalaer</a>, som <a href="/w/index.php?title=Rossi-Forel-skalaen&action=edit&redlink=1" class="new" title="Rossi-Forel-skalaen (ikke skrevet ennå)">Rossi-Forel-skalaen</a> og <a href="/wiki/Mercalliskalaen" title="Mercalliskalaen">Mercalliskalaen</a>. Disse er bedre egnet til å måle de humanitære konsekvensene av et jordskjelv. </p> <div class="mw-heading mw-heading2"><h2 id="Se_også"><span id="Se_ogs.C3.A5"></span>Se også</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richters_skala&veaction=edit&section=6" title="Rediger avsnitt: Se også" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Richters_skala&action=edit&section=6" title="Rediger kildekoden til seksjonen Se også"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Momentmagnitude" title="Momentmagnitude">Momentmagnitude</a></li> <li><a href="/wiki/Europeisk_makroseismisk_skala" title="Europeisk makroseismisk skala">Europeisk makroseismisk skala</a></li> <li><a href="/wiki/Mercalliskalaen" title="Mercalliskalaen">Mercalliskalaen</a></li> <li><a href="/w/index.php?title=Rossi-Forel-skalaen&action=edit&redlink=1" class="new" title="Rossi-Forel-skalaen (ikke skrevet ennå)">Rossi-Forel-skalaen</a></li> <li><a href="/wiki/Jordskjelv" title="Jordskjelv">Jordskjelv</a></li> <li><a href="/wiki/Seismologi" title="Seismologi">Seismologi</a></li> <li><a href="/wiki/Seismograf" title="Seismograf">Seismograf</a></li> <li><a href="/wiki/Liste_over_jordskjelv" title="Liste over jordskjelv">Liste over jordskjelv</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Referanser">Referanser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richters_skala&veaction=edit&section=7" title="Rediger avsnitt: Referanser" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Richters_skala&action=edit&section=7" title="Rediger kildekoden til seksjonen Referanser"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-MperElgamal-1"><b>^</b> <a href="#cite_ref-MperElgamal_1-0"><sup>a</sup></a> <a href="#cite_ref-MperElgamal_1-1"><sup>b</sup></a> <a href="#cite_ref-MperElgamal_1-2"><sup>c</sup></a> <span class="reference-text"><cite class="citation web">PhD. Ahmed Elgamal. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120130204632/http://webshaker.ucsd.edu/homework/Earthquake_Magnitude.pdf">«Earthquake Magnitude»</a> <span style="font-size:85%;">(PDF)</span>. University of California, San Diego. Arkivert fra <a rel="nofollow" class="external text" href="http://webshaker.ucsd.edu/homework/Earthquake_Magnitude.pdf">originalen</a> <span style="font-size:85%;">(PDF)</span> 30. januar 2012<span class="reference-accessdate">. Besøkt 14. april 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fno.wikipedia.org%3ARichters+skala&rft.au=PhD.+Ahmed+Elgamal&rft.btitle=Earthquake+Magnitude&rft.genre=unknown&rft.pub=University+of+California%2C+San+Diego&rft_id=http%3A%2F%2Fwebshaker.ucsd.edu%2Fhomework%2FEarthquake_Magnitude.pdf&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-USGSMagPolicy-2"><b>^</b> <a href="#cite_ref-USGSMagPolicy_2-0"><sup>a</sup></a> <a href="#cite_ref-USGSMagPolicy_2-1"><sup>b</sup></a> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110623105028/http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php">«USGS Earthquake Magnitude Policy»</a>. U.S. Geological Survey. Arkivert fra <a rel="nofollow" class="external text" href="https://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php">originalen</a> 23. juni 2011<span class="reference-accessdate">. Besøkt 14. april 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fno.wikipedia.org%3ARichters+skala&rft.btitle=USGS+Earthquake+Magnitude+Policy&rft.genre=unknown&rft.pub=U.S.+Geological+Survey&rft_id=http%3A%2F%2Fearthquake.usgs.gov%2Faboutus%2Fdocs%2F020204mag_policy.php&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-3"><b><a href="#cite_ref-3">^</a></b> <span class="reference-text"><cite class="citation web">EllsworthEllsworth, William L., William L. (1991). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160425121745/http://www.johnmartin.com/earthquakes/eqsafs/safs_693.htm">«The Richter Scale M<sub>L</sub>, from The San Andreas Fault System, California (Professional Paper 1515)»</a>. USGS. s. c6, p177. Arkivert fra <a rel="nofollow" class="external text" href="http://www.johnmartin.com/earthquakes/eqsafs/safs_693.htm">originalen</a> 25. april 2016<span class="reference-accessdate">. Besøkt 14. april 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fno.wikipedia.org%3ARichters+skala&rft.aufirst=William+L.&rft.aulast=EllsworthEllsworth%2C+William+L.&rft.btitle=The+Richter+Scale+M%3Csub%3EL%3C%2Fsub%3E%2C+from+The+San+Andreas+Fault+System%2C+California+%28Professional+Paper+1515%29&rft.date=1991&rft.genre=unknown&rft.pages=c6%2C+p177&rft.pub=USGS&rft_id=http%3A%2F%2Fwww.johnmartin.com%2Fearthquakes%2Feqsafs%2Fsafs_693.htm&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-MMSperHanks-4"><b>^</b> <a href="#cite_ref-MMSperHanks_4-0"><sup>a</sup></a> <a href="#cite_ref-MMSperHanks_4-1"><sup>b</sup></a> <span class="reference-text"><cite class="citation journal">Hanks, Thomas C. (mai 1979). <a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/1979JGR....84.2348H">«Moment magnitude scale»</a>. <i>Journal of Geophysical Research</i>. 84 (B5): 2348–2350. <a href="/wiki/Digital_objektidentifikator" title="Digital objektidentifikator">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1029%2FJB084iB05p02348">10.1029/JB084iB05p02348</a><span class="reference-accessdate">. Besøkt 14. april 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fno.wikipedia.org%3ARichters+skala&rft.atitle=Moment+magnitude+scale&rft.aufirst=Thomas+C.&rft.aulast=Hanks&rft.date=1979-05&rft.genre=article&rft.issue=B5&rft.jtitle=Journal+of+Geophysical+Research&rft.pages=2348-2350&rft.volume=84&rft_id=http%3A%2F%2Fadsabs.harvard.edu%2Fabs%2F1979JGR....84.2348H&rft_id=info%3Adoi%2F10.1029%2FJB084iB05p02348&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> </ol></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r23230704">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline 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