{"id":22896,"date":"2021-08-11T09:32:04","date_gmt":"2021-08-11T07:32:04","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=22896"},"modified":"2021-08-11T09:32:04","modified_gmt":"2021-08-11T07:32:04","slug":"plus-de-1000-seismes-observes-au-yellowstone-en-1-mois","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/plus-de-1000-seismes-observes-au-yellowstone-en-1-mois\/","title":{"rendered":"Plus de 1000 s\u00e9ismes observ\u00e9s au Yellowstone en 1 mois"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Yellowstone, de par sa situation g\u00e9ologique, est souvent en proie \u00e0 des s\u00e9ismes et il semblerait que la situation soit en train d\u2019empirer. D\u2019apr\u00e8s les donn\u00e9es de l\u2019US Geological Survey, le parc aurait enregistr\u00e9 plus de mille s\u00e9ismes en juillet 2021.<\/p>\n<p>Yellowstone est en effet une caldeira, soit un ensemble volcanique. Et il est m\u00eame \u00e0 l\u2019heure actuelle le plus grand supervolcan d\u2019Am\u00e9rique du Nord, avec une chambre magmatique offrant une capacit\u00e9 comprise entre 15 000 et 20 000 kilom\u00e8tres cubes.<\/p>\n<p>Cette particularit\u00e9 rend le parc unique, mais aussi tr\u00e8s dangereux. Il y a 2,1 millions d\u2019ann\u00e9es, une gigantesque \u00e9ruption a en effet eu lieu et elle a eu pour effet de rejeter dans l\u2019atmosph\u00e8re terrestre plus de 2 450 kilom\u00e8tres cubes de mati\u00e8res organiques.<\/p>\n<p>Sans surprise, en raison de sa dangerosit\u00e9, le parc est surveill\u00e9 de pr\u00e8s par les g\u00e9ologues, mais surtout par les sismologues. Son activit\u00e9 sismique est ainsi suivie en temps r\u00e9el et un observatoire a m\u00eame \u00e9t\u00e9 cr\u00e9\u00e9 : l\u2019observatoire volcanologique de Yellowstone, ou YVO.<\/p>\n<p>Or justement, l\u2019USGS rapporte avoir not\u00e9 une reprise importante de l\u2019activit\u00e9 sismique du parc en juillet 2021. D\u2019apr\u00e8s le rapport rendu, plus de 1 000 s\u00e9ismes auraient ainsi \u00e9t\u00e9 enregistr\u00e9s dans la r\u00e9gion en seulement quatre semaines.<\/p>\n<p>Soit l\u2019activit\u00e9 sismique la plus importante depuis le mois de juin de l\u2019ann\u00e9e 2017, o\u00f9 l\u2019US Geological Survey avait enregistr\u00e9 plus de 1 100 secousses en l\u2019espace d\u2019un mois.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p>Fort heureusement, si ces secousses ont \u00e9t\u00e9 nombreuses, elles ont aussi \u00e9t\u00e9 assez faibles, le tremblement le plus cons\u00e9quent n\u2019ayant pas d\u00e9pass\u00e9 la gamme de magnitude 3. S\u2019il a pu \u00eatre ressenti par les personnes pr\u00e9sentes sur place, il n\u2019a donc pas \u00e9t\u00e9 assez puissant pour occasionner des dommages importants dans la r\u00e9gion. Les sismologues pr\u00e9cisent \u00e9galement que rien ne laisse pr\u00e9sager \u00e0 un changement concernant l\u2019activit\u00e9 du supervolcan cach\u00e9 sous le parc.<\/p>\n<p>Toujours selon leur rapport, ces 1 008 tremblements de terre se sont produits sur sept s\u00e9ries diff\u00e9rentes, l\u2019\u00e9v\u00e9nement le plus important ayant \u00e9t\u00e9 enregistr\u00e9 le 16 juillet. Ce jour-l\u00e0, 764 s\u00e9ismes ont d\u2019ailleurs \u00e9t\u00e9 enregistr\u00e9s.<\/p>\n<p>Les tremblements de terre dans cette r\u00e9gion se produisent g\u00e9n\u00e9ralement en \u00ab grappes \u00bb et sont g\u00e9n\u00e9ralement caus\u00e9s par de grandes quantit\u00e9s d\u2019eau qui p\u00e9n\u00e8trent dans les failles souterraines. D\u2019autres peuvent \u00eatre caus\u00e9es par un l\u00e9ger glissement des failles elles-m\u00eames, tandis que d\u2019autres encore se produisent lorsque les fissures de la cro\u00fbte terrestre remplies de magma ont tendance \u00e0 s\u2019\u00e9largir.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"6123\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/confirmation-dune-chambre-magmatique-monumentale-sous-le-yellowstone\/yellowstone-geyser-shutterstock\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/yellowstone-geyser-shutterstock.jpg?fit=537%2C356&amp;ssl=1\" data-orig-size=\"537,356\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"yellowstone-geyser-shutterstock\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/yellowstone-geyser-shutterstock.jpg?fit=300%2C199&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/yellowstone-geyser-shutterstock.jpg?fit=537%2C356&amp;ssl=1\" class=\"alignnone  wp-image-6123\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/yellowstone-geyser-shutterstock.jpg?resize=624%2C414&#038;ssl=1\" alt=\"\" width=\"624\" height=\"414\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/yellowstone-geyser-shutterstock.jpg?w=537&amp;ssl=1 537w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/yellowstone-geyser-shutterstock.jpg?resize=300%2C199&amp;ssl=1 300w\" sizes=\"auto, (max-width: 624px) 100vw, 624px\" \/><\/p>\n<p>extraits et sources : <a href=\"https:\/\/www.fredzone.org\/yellowstone-a-enregistre-plus-de-1-000-seismes-en-juillet-8547\" target=\"_blank\" rel=\"noopener\">https:\/\/www.fredzone.org\/<\/a> \/ <a href=\"https:\/\/www.mlactu.fr\/un-essaim-de-dizaines-de-tremblements-de-terre-secoue-yellowstone\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.mlactu.fr\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"22896\">(505)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Yellowstone, de par sa situation g\u00e9ologique, est souvent en proie \u00e0 des s\u00e9ismes et il semblerait que la situation soit&#8230;<\/p>\n","protected":false},"author":1,"featured_media":22897,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Plus de 1000 s\u00e9ismes observ\u00e9s au #Yellowstone en 1 mois @laterredufutur.com Terra Projects","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[19],"tags":[7606,1538,104,105],"class_list":["post-22896","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seismes-et-volcans","tag-caldeira-du-yellowstone","tag-seismes","tag-tremblement-de-terre","tag-yellowstone","wpcat-19-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/yellowstone.jpg?fit=1024%2C679&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-5Xi","jetpack-related-posts":[{"id":15485,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-supervolcan-du-yellowstone-vient-dobserver-878-seismes-en-deux-semaines\/","url_meta":{"origin":22896,"position":0},"title":"Le supervolcan du Yellowstone vient d&rsquo;observer 878 seismes en deux semaines","author":"Admin","date":"29 juin 2017","format":false,"excerpt":"Le Yellowstone a eu un mois de turbulences. En seulement deux semaines, le supervolcan qui se trouve sous le parc national du Wyoming aux USA a connu 878 tremblements de terre. Cette s\u00e9rie de tremblements de terre, appel\u00e9 essaim de tremblements de terre, a commenc\u00e9 le 12 juin 2017. En\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/06\/yellowstone.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/06\/yellowstone.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/06\/yellowstone.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/06\/yellowstone.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":13085,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-supervolcan-de-yellowstone\/","url_meta":{"origin":22896,"position":1},"title":"Le Supervolcan de Yellowstone","author":"Admin","date":"28 ao\u00fbt 2016","format":false,"excerpt":"La caldeira de Yellowstone, en anglais Yellowstone Caldera, parfois connue sous le nom de \u00ab supervolcan de Yellowstone \u00bb, est un volcan endormi des \u00c9tats-Unis situ\u00e9 dans le parc national de Yellowstone. https:\/\/www.youtube.com\/watch?v=oEsDiu6WSvY Le Supervolcan de Yellowstone","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/chambre-magmatique-yellowstone.png?fit=600%2C332&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/chambre-magmatique-yellowstone.png?fit=600%2C332&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/chambre-magmatique-yellowstone.png?fit=600%2C332&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":1926,"url":"https:\/\/www.laterredufutur.com\/accueil\/que-se-passe-t-il-au-yellowstone\/","url_meta":{"origin":22896,"position":2},"title":"Que se passe t-il au Yellowstone ?","author":"Admin","date":"3 avril 2014","format":false,"excerpt":"Que se passe t-il au Yellowstone ? Suite au tremblement de terre de 4.8, C'est le plus important au Yellowstone depuis 1980, selon le US Geological Survey. Depuis plusieurs semaines, des bloggeurs ont pu filmer des troupeaux de bisons fuyant le parc naturel de Yellowstone secou\u00e9 par des petits tremblements\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2014\/04\/.._spaw_images_img94.gif?fit=410%2C281&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":6121,"url":"https:\/\/www.laterredufutur.com\/accueil\/confirmation-dune-chambre-magmatique-monumentale-sous-le-yellowstone\/","url_meta":{"origin":22896,"position":3},"title":"Confirmation d&rsquo;une chambre magmatique monumentale sous le Yellowstone","author":"Admin","date":"24 avril 2015","format":false,"excerpt":"Un papier vient d'\u00eatre publi\u00e9 dans la revue Science qui confirme que la chambre magmatique sous le Yellowstone est gigantesque. Un gigantesque r\u00e9servoir de magma a \u00e9t\u00e9 d\u00e9couvert et analys\u00e9 sous le super-volcan de Yellowstone aux Etats-Unis, par une \u00e9quipe de vulcanologues qui publie sa d\u00e9couverte dans la revue Science.\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/chambre-magmatique-yellowstone.png?fit=600%2C332&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/chambre-magmatique-yellowstone.png?fit=600%2C332&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/chambre-magmatique-yellowstone.png?fit=600%2C332&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":20329,"url":"https:\/\/www.laterredufutur.com\/accueil\/volcan-de-yellowstone-un-scientifique-de-lusgs-a-admis-quune-eruption-massive-est-possible\/","url_meta":{"origin":22896,"position":4},"title":"Volcan de Yellowstone: Un scientifique de l&rsquo;USGS a admis qu&rsquo;une \u00ab\u00a0 \u00e9ruption massive est possible \u00a0\u00bb","author":"Admin","date":"22 janvier 2020","format":false,"excerpt":"Une super-\u00e9ruption du Yellowstone dans le futur est \u00abpossible\u00bb \u00e0 tout moment, a admis un scientifique de l'USGS \u00e9tudiant le volcan lors d'une s\u00e9ance de questions et r\u00e9ponses avec le public. La caldeira de Yellowstone est d\u00e9sign\u00e9e de mani\u00e8re effrayante comme un super-volcan en raison de sa capacit\u00e9 \u00e0 infliger\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/yellowstone-super-eruption.jpg?fit=1200%2C631&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/yellowstone-super-eruption.jpg?fit=1200%2C631&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/yellowstone-super-eruption.jpg?fit=1200%2C631&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/yellowstone-super-eruption.jpg?fit=1200%2C631&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/yellowstone-super-eruption.jpg?fit=1200%2C631&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":9021,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-fissures-monstrueuses-sont-apparues-a-yellowstone-sur-les-montagnes-big-horn\/","url_meta":{"origin":22896,"position":5},"title":"Des fissures monstrueuses sont apparues \u00e0 Yellowstone sur les Montagnes Big Horn","author":"Admin","date":"30 octobre 2015","format":false,"excerpt":"Cette fissure g\u00e9ante est apparue il y a deux semaines dans un ranch o\u00f9 nous chassons pr\u00e8s des Montagnes Big Born. Tout le monde ici l\u2019appelle le \u00ab gash \u00bb (l\u2019entaille). C\u2019est une observation terrifiante. Publi\u00e9 par SNS Outfitter & Guides, le vendredi 23 octobre 2015 https:\/\/www.youtube.com\/watch?v=DF4w7O46-7w Un article r\u00e9capitulatif\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/fissures-yellowstone.jpg?fit=800%2C465&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/fissures-yellowstone.jpg?fit=800%2C465&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/fissures-yellowstone.jpg?fit=800%2C465&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/fissures-yellowstone.jpg?fit=800%2C465&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22896","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=22896"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22896\/revisions"}],"predecessor-version":[{"id":22898,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22896\/revisions\/22898"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/22897"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=22896"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=22896"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=22896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}