{"id":22237,"date":"2021-03-28T15:20:37","date_gmt":"2021-03-28T14:20:37","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=22237"},"modified":"2021-03-28T15:29:09","modified_gmt":"2021-03-28T14:29:09","slug":"un-seisme-de-magnitude-5-2-secoue-la-caldeira-de-toba-dans-le-nord-de-sumatra","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/un-seisme-de-magnitude-5-2-secoue-la-caldeira-de-toba-dans-le-nord-de-sumatra\/","title":{"rendered":"Un s\u00e9isme de magnitude 5,2 secoue la caldeira de Toba dans le nord de Sumatra"},"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>Medan (ANTARA) &#8211; Un tremblement de terre de magnitude 5,2 a secou\u00e9 samedi 27 mars 2021 la caldeira de Toba, au nord de Sumatra, \u00e0 15 h 46, heure en Indon\u00e9sie occidentale (WIB), selon l&rsquo;Agence de m\u00e9t\u00e9orologie, de climatologie et de g\u00e9ophysique (BMKG).<\/p>\n<p>\u00c0 en juger par l&rsquo;\u00e9picentre et la profondeur de l&rsquo;hypocentre, le tremblement de terre a \u00e9t\u00e9 caus\u00e9 par une activit\u00e9 de subduction, a d\u00e9clar\u00e9 le chef du Centre des tremblements de terre et des tsunamis de BMKG, Bambang Setiyo Prayitno, dans un communiqu\u00e9 samedi. La subduction est le processus par lequel une plaque tectonique oc\u00e9anique s&rsquo;incurve et plonge sous une autre plaque avant de s&rsquo;enfoncer dans le manteau terrestre. Ce processus se produit lorsque la lithosph\u00e8re oc\u00e9anique en refroidissement devient plus dense que l&rsquo;asth\u00e9nosph\u00e8re sous-jacente.<\/p>\n<p>L&rsquo;\u00e9picentre du s\u00e9isme \u00e9tait situ\u00e9 sur un terrain \u00e0 11 kilom\u00e8tres au nord-ouest de Balige, chef-lieu du district de Toba, \u00e0 une profondeur de 137 kilom\u00e8tres.<\/p>\n<p>Le 14 mars un autre tremblement de terre mod\u00e9r\u00e9 de magnitude 3,7 s&rsquo;\u00e9tait produit en plein c\u0153ur de la caldeira du Toba \u00e0 Sumatra sous l&rsquo;\u00eele de Samosir. La secousse avait \u00e9t\u00e9 ressentie le long de la c\u00f4te proche de l&rsquo;\u00eele. (Source: EMSC-CSEM).<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"22238\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/un-seisme-de-magnitude-5-2-secoue-la-caldeira-de-toba-dans-le-nord-de-sumatra\/seisme-toba-14mars2021\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-14mars2021.jpg?fit=534%2C631&amp;ssl=1\" data-orig-size=\"534,631\" 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=\"seisme-toba-14mars2021\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-14mars2021.jpg?fit=534%2C631&amp;ssl=1\" class=\"alignnone size-full wp-image-22238\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-14mars2021.jpg?resize=534%2C631&#038;ssl=1\" alt=\"\" width=\"534\" height=\"631\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-14mars2021.jpg?w=534&amp;ssl=1 534w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-14mars2021.jpg?resize=254%2C300&amp;ssl=1 254w\" sizes=\"auto, (max-width: 534px) 100vw, 534px\" \/><\/p>\n<p>Le s\u00e9isme de ce 27 mars 2021 aurait probablement \u00e9t\u00e9 ressenti par des personnes sur une \u00e9chelle I-II d&rsquo;intensit\u00e9 de Mercalli modifi\u00e9e (MMI) \u00e0 Samosir, a-t-il d\u00e9clar\u00e9. Un tremblement de terre de MMI-II a \u00e9t\u00e9 ressenti par certaines personnes et a fait trembler des articles l\u00e9gers suspendus, a-t-il ajout\u00e9.<\/p>\n<p>Un s\u00e9isme de magnitude 5,2 est consid\u00e9r\u00e9 comme mod\u00e9r\u00e9 et susceptible de causer des dommages consid\u00e9rables.<\/p>\n<p>L&rsquo;Indon\u00e9sie se trouve sur la ceinture de feu du Pacifique g\u00e9ographiquement active et d\u00e9tient environ 40 pour cent des r\u00e9serves g\u00e9othermiques du monde.<\/p>\n<p>L&rsquo;anneau de feu, ou la ceinture Circum-Pacifique, est la plus grande ceinture de tremblements de terre au monde en raison de lignes de faille allant du Chili au Japon et \u00e0 l&rsquo;Asie du Sud-Est, selon Live Science. (INE)<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"22239\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/un-seisme-de-magnitude-5-2-secoue-la-caldeira-de-toba-dans-le-nord-de-sumatra\/seisme-toba-28mars2021\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-28mars2021.jpg?fit=1050%2C480&amp;ssl=1\" data-orig-size=\"1050,480\" 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;1&quot;}\" data-image-title=\"seisme-toba-28mars2021\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-28mars2021.jpg?fit=800%2C366&amp;ssl=1\" class=\"alignnone size-full wp-image-22239\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-28mars2021.jpg?resize=1050%2C480&#038;ssl=1\" alt=\"\" width=\"1050\" height=\"480\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-28mars2021.jpg?w=1050&amp;ssl=1 1050w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-28mars2021.jpg?resize=300%2C137&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-28mars2021.jpg?resize=800%2C366&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-28mars2021.jpg?resize=768%2C351&amp;ssl=1 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"20615\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/les-populations-humaines-ont-survecu-a-la-super-eruption-volcanique-de-toba-il-y-a-74-000-ans\/volcan-toba\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/volcan-toba.jpg?fit=1000%2C711&amp;ssl=1\" data-orig-size=\"1000,711\" 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=\"volcan-toba\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/volcan-toba.jpg?fit=800%2C569&amp;ssl=1\" class=\"alignnone size-full wp-image-20615\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/volcan-toba.jpg?resize=1000%2C711&#038;ssl=1\" alt=\"\" width=\"1000\" height=\"711\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/volcan-toba.jpg?w=1000&amp;ssl=1 1000w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/volcan-toba.jpg?resize=300%2C213&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/volcan-toba.jpg?resize=800%2C569&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/volcan-toba.jpg?resize=768%2C546&amp;ssl=1 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/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>Les plaques oc\u00e9aniques qui plongent en subduction sont constitu\u00e9es de min\u00e9raux hydrat\u00e9s par m\u00e9tamorphisme hydrothermal en raison du long s\u00e9jour qu&rsquo;elles ont pass\u00e9 au fond des oc\u00e9ans (en s&rsquo;\u00e9loignant de la dorsale, l&rsquo;eau p\u00e9n\u00e8tre profond\u00e9ment dans la lithosph\u00e8re oc\u00e9anique par le biais des failles normales, et en ressortant une partie de cette eau est d&rsquo;ailleurs \u00e0 l&rsquo;origine des fumeurs noirs). Parmi ces min\u00e9raux, on peut notamment citer les amphiboles hornblende, la chlorite, l&rsquo;actinote, pr\u00e9sentes dans le faci\u00e8s schistes verts.<\/p>\n<p>Lorsque la plaque plongeante atteint des profondeurs et des temp\u00e9ratures importantes, les min\u00e9raux hydrat\u00e9s deviennent instables. Ils subissent des transformations m\u00e9tamorphiques et perdent leur eau pour se transformer en min\u00e9raux de plus en plus anhydres. Ainsi, la plaque oc\u00e9anique plongeante se d\u00e9shydrate en s&rsquo;enfon\u00e7ant, perdant l&rsquo;eau qu&rsquo;elle avait accumul\u00e9e au cours de son \u00e9loignement \u00e0 la dorsale. Cette eau de la plaque plongeante percole alors vers la plaque chevauchante.<\/p>\n<p>Cette eau lib\u00e9r\u00e9e abaisse le point de fusion de la p\u00e9ridotite de la plaque chevauchante, qui peut alors fondre partiellement (30 \u00e0 35 % de taux de fusion). Il y a alors formation de magma \u00e0 la base de la plaque sup\u00e9rieure. Ce magma remonte \u00e0 travers la plaque sup\u00e9rieure, s&rsquo;enrichissant ainsi en divers \u00e9l\u00e9ments non-m\u00e9taux et surtout en silice. Une preuve qu&rsquo;il s&rsquo;agit de la plaque chevauchante qui fond, et non de la plaque plongeante, est la composition chimique diff\u00e9rente entre les roches qui subductent (basalte, gabbro) et les roches magmatiques qui r\u00e9sultent de la fusion. Ces roches magmatiques contiennent d&rsquo;ailleurs de nombreux min\u00e9raux hydrat\u00e9s (comme les micas ou les amphiboles hornblende).<\/p>\n<p>Le magma form\u00e9, visqueux, sera \u00e0 l&rsquo;origine de roches magmatiques plutoniques, ou intrusives (les granito\u00efdes), s&rsquo;il n&rsquo;atteint pas la surface ; ces roches (parmi lesquelles on peut citer la diorite, la granodiorite ou m\u00eame parfois le granite) forment alors des plutons.<\/p>\n<p>En revanche, si le magma atteint la surface, il est \u00e0 l&rsquo;origine d&rsquo;un volcanisme explosif d&rsquo;autant plus violent que le magma est visqueux, et de roches magmatiques volcaniques (comme l&rsquo;and\u00e9site ou la rhyolite). Les zones de subduction sont ainsi \u00e0 l&rsquo;origine d&rsquo;un volcanisme explosif intense (on parle parfois de volcans gris). Il s&rsquo;agit d&rsquo;un volcanisme avec une g\u00e9ochimie calco-alcaline. Les volcans de subduction s&rsquo;alignent en g\u00e9n\u00e9ral parall\u00e8lement \u00e0 la zone de subduction, \u00e0 une distance de l&rsquo;ordre de 200 km de la fosse oc\u00e9anique. On appelle \u00ab arcs volcaniques \u00bb ces alignements de volcans.<\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\" target=\"_blank\" rel=\"noopener\">Terra Projects<\/a><\/p>\n<p>Source : <a href=\"https:\/\/en.antaranews.com\/news\/171086\/50-magnitude-quake-jolts-north-sumatras-toba-district\" target=\"_blank\" rel=\"noopener\">https:\/\/en.antaranews.com\/<\/a> \/ <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Subduction\" rel=\"noopener\" target=\"_blank\">https:\/\/fr.wikipedia.org\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"22237\">(514)<\/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>Medan (ANTARA) &#8211; Un tremblement de terre de magnitude 5,2 a secou\u00e9 samedi 27 mars 2021 la caldeira de Toba,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":22239,"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":"Un #s\u00e9isme de magnitude 5,2 secoue la #caldeira de #Toba dans le nord de #Sumatra @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":[2264,347,106,48],"class_list":["post-22237","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seismes-et-volcans","tag-caldeira","tag-seisme","tag-toba","tag-volcan","wpcat-19-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/seisme-toba-28mars2021.jpg?fit=1050%2C480&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-5MF","jetpack-related-posts":[{"id":534,"url":"https:\/\/www.laterredufutur.com\/accueil\/supervolcan-toba\/","url_meta":{"origin":22237,"position":0},"title":"Supervolcan Toba","author":"Admin","date":"15 septembre 2011","format":false,"excerpt":"Le 05 Septembre 2011 \u00e0 17 h 55 Temps Universel, le 06 Septembre 2011 \u00e0 00 h 55 Heure locale, un tremblement de terre de magnitude du Moment Mw 6.6 pour le Centre Sismologique Euro-M\u00e9diterran\u00e9en, - CSEM -, 6.5 r\u00e9vis\u00e9e 6.6 pour l'United States Geological Survey, - USGS -, et\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":"lac toba","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/wordpress\/wp-content\/uploads\/2011\/09\/toba.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":1053,"url":"https:\/\/www.laterredufutur.com\/accueil\/sumatra-11-avril-2012-un-seisme-pas-comme-les-autres\/","url_meta":{"origin":22237,"position":1},"title":"Sumatra, 11 avril 2012 : un s\u00e9isme pas comme les autres","author":"Admin","date":"27 septembre 2012","format":false,"excerpt":"D'apr\u00e8s plusieurs \u00e9quipes de chercheurs, la plaque indo-australienne serait en train de se fracturer en deux. Explications. 11 avril 2012, 10 h 38 (heure de Paris), un violent s\u00e9isme de magnitude 8,7 secoue l'\u00eele de Sumatra en Indon\u00e9sie et d\u00e9clenche aussit\u00f4t une alerte au tsunami sur l'ensemble de l'oc\u00e9an Indien.\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":"","width":0,"height":0},"classes":[]},{"id":2768,"url":"https:\/\/www.laterredufutur.com\/accueil\/lindonesie-sous-la-menace-dun-super-volcan\/","url_meta":{"origin":22237,"position":2},"title":"L&rsquo;Indon\u00e9sie sous la menace d&rsquo;un super volcan","author":"Admin","date":"4 avril 2005","format":false,"excerpt":"Un scientifique australien a mis en garde vendredi contre la menace d'un puissant volcan en Indon\u00e9sie, dont l'\u00e9ruption pourrait faire des millions de victimes, alors que le pays vient de subir deux violents s\u00e9ismes en trois mois. Le professeur Ray Cas du d\u00e9partement de g\u00e9oscience de l'universit\u00e9 Monash a indiqu\u00e9\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\/Sumatramapcopy.jpg?fit=537%2C502&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/Sumatramapcopy.jpg?fit=537%2C502&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/Sumatramapcopy.jpg?fit=537%2C502&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":16434,"url":"https:\/\/www.laterredufutur.com\/accueil\/incident-sismique-en-islande-des-seismes-de-magnitude-4-m4-ont-frappe-pres-de-siglufjordur-et-du-volcan-askja\/","url_meta":{"origin":22237,"position":3},"title":"Incident sismique en Islande: des s\u00e9ismes de magnitude 4 M4 ont frapp\u00e9 pr\u00e8s de Siglufj\u00f6r\u00f0ur et du volcan Askja","author":"Admin","date":"19 mars 2018","format":false,"excerpt":"Incident sismique en Islande: des s\u00e9ismes de magnitude 4 M4 ont frapp\u00e9 pr\u00e8s de Siglufj\u00f6r\u00f0ur et le volcan Aksja a \u00e9t\u00e9 secou\u00e9 par un tremblement de terre de magnitude 3,8 suivi de plus petites r\u00e9pliques. Un s\u00e9isme de M3.8 a secou\u00e9 le volcan Askja le 14 mars 2018 \u00e0 21:10\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\/2018\/03\/askja-caldeira.jpg?fit=900%2C600&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/03\/askja-caldeira.jpg?fit=900%2C600&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/03\/askja-caldeira.jpg?fit=900%2C600&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/03\/askja-caldeira.jpg?fit=900%2C600&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":7216,"url":"https:\/\/www.laterredufutur.com\/accueil\/augmentation-sismique-et-fumerolles-sur-la-caldeira-du-toba\/","url_meta":{"origin":22237,"position":4},"title":"Augmentation sismique et fumerolles sur la caldeira du Toba","author":"Admin","date":"7 juin 2015","format":false,"excerpt":"Caldeira du Toba, en Indon\u00e9sie.\u00a0Augmentation sismique et fumerolles .- Ce grand syst\u00e8me volcanique montre des signes d'activit\u00e9, ce qui n'a rien de surprenant, car il contient une chambre magmatique \u00e9norme et marque\u00a0ces derniers jours des micros\u00e9ismes et des \u00e9missions de fumerolles. Avec des dimensions de 100 km sur \u00a035 km,\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\/06\/toba_caldeira1.jpg?fit=1024%2C768&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/toba_caldeira1.jpg?fit=1024%2C768&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/toba_caldeira1.jpg?fit=1024%2C768&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/toba_caldeira1.jpg?fit=1024%2C768&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":13835,"url":"https:\/\/www.laterredufutur.com\/accueil\/tremblements-de-terre-en-italie-explications\/","url_meta":{"origin":22237,"position":5},"title":"Tremblements de Terre en Italie : Explications","author":"Admin","date":"1 novembre 2016","format":false,"excerpt":"Article de chasseurd'orages37\u00a0(Kevin) - Description claire et pr\u00e9cise de la g\u00e9ographie physique de l'Italie : L\u2019Italie est constitu\u00e9e d'une partie continentale, p\u00e9ninsulaire et insulaire. Le territoire Italien est tr\u00e8s accident\u00e9, ce territoire poss\u00e8de deux grandes cha\u00eenes de montagne dont les Alpes du Nord ainsi que la cha\u00eene des Apennins. Les\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\/2016\/11\/seisme-italie.jpg?fit=700%2C368&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/11\/seisme-italie.jpg?fit=700%2C368&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/11\/seisme-italie.jpg?fit=700%2C368&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/11\/seisme-italie.jpg?fit=700%2C368&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22237","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=22237"}],"version-history":[{"count":5,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22237\/revisions"}],"predecessor-version":[{"id":22244,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22237\/revisions\/22244"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/22239"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=22237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=22237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=22237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}