{"id":5260,"date":"2025-04-28T10:30:23","date_gmt":"2025-04-28T10:30:23","guid":{"rendered":"https:\/\/sismoiberica.org\/com-senregistren-les-ones-sismiques\/"},"modified":"2025-04-28T10:30:23","modified_gmt":"2025-04-28T10:30:23","slug":"com-senregistren-les-ones-sismiques","status":"publish","type":"page","link":"https:\/\/sismoiberica.org\/es\/com-senregistren-les-ones-sismiques\/","title":{"rendered":"Com s&#8217;enregistren les ones s\u00edsmiques?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"5260\" class=\"elementor elementor-5260 elementor-318\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-af4a21c elementor-section-height-min-height elementor-section-boxed elementor-section-height-default elementor-section-items-middle\" data-id=\"af4a21c\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-253285b\" data-id=\"253285b\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-02c9b71 elementor-widget elementor-widget-heading\" data-id=\"02c9b71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Com s'enregistren les ones s\u00edsmiques?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4a33fb7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4a33fb7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dab6c3d\" data-id=\"dab6c3d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4e9a904 elementor-widget elementor-widget-text-editor\" data-id=\"4e9a904\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Els humans percebem les oscil\u00b7lacions dels terratr\u00e8mols nom\u00e9s quan s\u00f3n relativament intensos. Per\u00f2 per percebre i enregistrar amb precisi\u00f3 els terratr\u00e8mols de qualsevol mida necessitem utilitzar aparells especialitzats d&#8217;alta sensibilitat.<\/p><p>L&#8217;aparell que ens permet detectar les ones s\u00edsmiques \u00e9s un sism\u00f2metre. La combinaci\u00f3 d&#8217;un sim\u00f2metre amb un mecanisme que registra les ones s&#8217;anomena sism\u00f2graf. El resultat gr\u00e0fic d&#8217;un sism\u00f2graf s&#8217;anomena sismograma.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d3e56df elementor-widget elementor-widget-text-editor\" data-id=\"d3e56df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Un sismograma, despr\u00e9s de l\u2019arribada d\u2019un sisme, t\u00e9 un aspecte com el de la figura, on es poden observar l\u2019ordre de l\u2019arribada dels tres tipus d\u2019ones.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53623bd elementor-widget elementor-widget-image\" data-id=\"53623bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1031\" height=\"616\" src=\"https:\/\/sismoiberica.org\/wp-content\/uploads\/2025\/05\/3_7_Sismograma_sintetic.jpeg\" class=\"attachment-full size-full wp-image-5314\" alt=\"\" srcset=\"https:\/\/sismoiberica.org\/wp-content\/uploads\/2025\/05\/3_7_Sismograma_sintetic.jpeg 1031w, https:\/\/sismoiberica.org\/wp-content\/uploads\/2025\/05\/3_7_Sismograma_sintetic-300x179.jpeg 300w, https:\/\/sismoiberica.org\/wp-content\/uploads\/2025\/05\/3_7_Sismograma_sintetic-1024x612.jpeg 1024w, https:\/\/sismoiberica.org\/wp-content\/uploads\/2025\/05\/3_7_Sismograma_sintetic-768x459.jpeg 768w\" sizes=\"(max-width: 1031px) 100vw, 1031px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figura adaptada de: \u00a0 https:\/\/academic.brooklyn.cuny.edu\/geology\/grocha\/plates\/platetec19.htm<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fa1065 elementor-widget elementor-widget-text-editor\" data-id=\"5fa1065\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La figura anterior representa un sismograma tipus on s&#8217;observa l&#8217;ordre d&#8217;arribada dels diferents tipus d&#8217;ones s\u00edsmiques generades pel moviment d&#8217;una falla.<\/p><p>1) A temps zero, es produeix la ruptura d&#8217;una falla a una certa dist\u00e0ncia de l&#8217;estaci\u00f3 s\u00edsmica i el sism\u00f2graf, de moment, nom\u00e9s enregistra el soroll de fons (ones s\u00edsmiques procedents d&#8217;altres indrets, maquin\u00e0ria, tr\u00e0nsit, etc.);<\/p><p>2) Arriben les ones P, que s\u00f3n les m\u00e9s r\u00e0pides, al sism\u00f2graf. Aix\u00f2 es produeix uns dos minuts m\u00e9s tard que s&#8217;hagi produ\u00eft el terratr\u00e8mol;<\/p><p>3) Arriben les ones S, que s\u00f3n m\u00e9s lentes, aproximadament al cap de 4 minuts que s&#8217;hagi produ\u00eft el terratr\u00e8mol;<\/p><p>4) Arriben les ones superficials, que s\u00f3n les m\u00e9s lentes de totes, al cap de 5 minuts i mig despr\u00e9s de l&#8217;inici del sisme. Aquest tren dones pren un cam\u00ed no tant directe seguint la superf\u00edcie corbada de la Terra.<\/p><p>5) L&#8217;interval S-P permet deduir la dist\u00e0ncia entre el focus del terratr\u00e8mol i el sism\u00f2graf. Com m\u00e9s difer\u00e8ncia hi ha en els temps d&#8217;arribada d&#8217;ones P i S, m\u00e9s lluny es troba el focus del sisme.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Com s&#8217;enregistren les ones s\u00edsmiques? Els humans percebem les oscil\u00b7lacions dels terratr\u00e8mols nom\u00e9s quan s\u00f3n relativament intensos. Per\u00f2 per percebre i enregistrar amb precisi\u00f3 els terratr\u00e8mols de qualsevol mida necessitem utilitzar aparells especialitzats d&#8217;alta sensibilitat. L&#8217;aparell que ens permet detectar les ones s\u00edsmiques \u00e9s un sism\u00f2metre. La combinaci\u00f3 d&#8217;un sim\u00f2metre amb un mecanisme que registra [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-5260","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sismoiberica.org\/es\/wp-json\/wp\/v2\/pages\/5260","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sismoiberica.org\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sismoiberica.org\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sismoiberica.org\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sismoiberica.org\/es\/wp-json\/wp\/v2\/comments?post=5260"}],"version-history":[{"count":0,"href":"https:\/\/sismoiberica.org\/es\/wp-json\/wp\/v2\/pages\/5260\/revisions"}],"wp:attachment":[{"href":"https:\/\/sismoiberica.org\/es\/wp-json\/wp\/v2\/media?parent=5260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}