{"id":26668,"date":"2025-02-04T13:15:39","date_gmt":"2025-02-04T12:15:39","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=26668"},"modified":"2025-02-04T13:15:39","modified_gmt":"2025-02-04T12:15:39","slug":"essaim-de-seismes-intenses-en-cours-au-santorin-tectonique-ou-volcanique","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/essaim-de-seismes-intenses-en-cours-au-santorin-tectonique-ou-volcanique\/","title":{"rendered":"Essaim de s\u00e9ismes intenses en cours au Santorin : tectonique ou volcanique ?"},"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>Un essaim sismique intense s&rsquo;est produit depuis mardi 28 janvier 2025 au large des c\u00f4tes de Santorin, en Gr\u00e8ce, \u00e0 quelques kilom\u00e8tres de l&rsquo;une des \u00eeles volcaniques les plus connues et visit\u00e9es au monde. La s\u00e9quence en cours depuis mardi a jusqu&rsquo;\u00e0 pr\u00e9sent enregistr\u00e9 plus de 300 tremblements de terre, dont 9 ont eu une magnitude ou plus de 4. Les tremblements de terre les plus forts de l&rsquo;essaim se sont produits tout ce matin et avaient une magnitude comprise entre 4,1 et 4,7, tous bien avertis sur l&rsquo;\u00eele de Santorin. L&rsquo;activit\u00e9 est si intense que les tremblements se produisent toutes les deux minutes, donc les donn\u00e9es sont constamment mises \u00e0 jour.<\/p>\n<p>La plupart des \u00e9picentres sont concentr\u00e9s pr\u00e8s du c\u00f4t\u00e9 nord-est du volcan sous-marin Kolumbo, l&rsquo;un des syst\u00e8mes volcaniques les plus importants de toute la mer \u00c9g\u00e9e dont la derni\u00e8re \u00e9ruption remonte \u00e0 1650. Nous parlons de l&rsquo;une des \u00e9ruptions historiques les plus importantes de la mer M\u00e9diterran\u00e9e, avec tant de flux pyroclastiques \u00e9tendus, des glissements de terrain sous-marins et un tsunami avec des vagues de plus de 20 m\u00e8tres de haut. Mais alors ces tremblements de terre sont-ils li\u00e9s au volcan ou simplement \u00e0 la tectonique de l&rsquo;arc hell\u00e9nique ? La r\u00e9ponse est que nous ne savons pas, nous n&rsquo;avons pas assez de donn\u00e9es pour \u00e9carter les deux hypoth\u00e8ses. Selon les d\u00e9clarations du directeur de l&rsquo;Observatoire national sismique d&rsquo;Ath\u00e8nes, il appara\u00eet que les tremblements de terre sont essentiellement de nature tectonique, car les r\u00e9seaux de surveillance volcanique ne semblent pas avoir d\u00e9tect\u00e9 de variation dans les param\u00e8tres surveill\u00e9s.<\/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><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"26669\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/essaim-de-seismes-intenses-en-cours-au-santorin-tectonique-ou-volcanique\/santorin-5\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/santorin.jpg?fit=1080%2C1080&amp;ssl=1\" data-orig-size=\"1080,1080\" 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=\"santorin\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/santorin.jpg?fit=800%2C800&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/santorin.jpg?resize=1080%2C1080&#038;ssl=1\" alt=\"\" width=\"1080\" height=\"1080\" class=\"alignnone size-full wp-image-26669\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/santorin.jpg?w=1080&amp;ssl=1 1080w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/santorin.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/santorin.jpg?resize=800%2C800&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/santorin.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/santorin.jpg?resize=144%2C144&amp;ssl=1 144w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>L&rsquo;attention reste de toute fa\u00e7on, d\u00e9j\u00e0 mardi une premi\u00e8re r\u00e9union d&rsquo;urgence a eu lieu entre la Protection Civile, certains membres du gouvernement grec et les volcanologues de l&rsquo;institut de surveillance de Santorin afin de v\u00e9rifier et de mettre \u00e0 jour les protocoles d&rsquo;urgence au cas o\u00f9 les choses tournent mal. Aussi, apr\u00e8s les tremblements de terre de ces derni\u00e8res heures, la d\u00e9cision a \u00e9t\u00e9 prise de garder les \u00e9coles ferm\u00e9es \u00e0 Santorin pour demain.<\/p>\n<p>Le dernier mouvement du syst\u00e8me volcanique Santorin-Kolumbo remonte \u00e0 2011-2012 quand une s\u00e9quence de tremblements de terre a affect\u00e9 l&rsquo;\u00eele pendant pas moins de 14 mois. Toutefois, dans ce cas, des changements importants ont \u00e9t\u00e9 d\u00e9tect\u00e9s \u00e0 travers l&rsquo;appareil volcanique, notamment une augmentation des \u00e9missions de gaz et une d\u00e9formation de la chaudi\u00e8re de 12 cm, signe du fait qu&rsquo;une intrusion magmatique \u00e9tait en cours, ce qui n&rsquo;a heureusement pas culmin\u00e9 par une \u00e9ruption.<\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\">Terra Projects<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"26668\">(455)<\/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>Un essaim sismique intense s&rsquo;est produit depuis mardi 28 janvier 2025 au large des c\u00f4tes de Santorin, en Gr\u00e8ce, \u00e0&#8230;<\/p>\n","protected":false},"author":1,"featured_media":24786,"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_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":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[19],"tags":[2264,1378,1139,347,3305],"class_list":["post-26668","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seismes-et-volcans","tag-caldeira","tag-plaque","tag-santorin","tag-seisme","tag-trembelement-de-terre","wpcat-19-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/03\/santorin-et-volcan-Kolumbo.jpg?fit=600%2C563&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-6W8","jetpack-related-posts":[{"id":26687,"url":"https:\/\/www.laterredufutur.com\/accueil\/santorin-letat-durgence-est-declare\/","url_meta":{"origin":26668,"position":0},"title":"Santorin : l&rsquo;Etat d&rsquo;urgence est d\u00e9clar\u00e9","author":"Admin","date":"7 f\u00e9vrier 2025","format":false,"excerpt":"Touch\u00e9e par une vague de s\u00e9isme in\u00e9dite, l'\u00eele touristique de Santorin a \u00e9t\u00e9 plac\u00e9e en \u00e9tat d'urgence. Les scientifiques s'attendent \u00e0 de nouvelles secousses. Une \u00eele inhabituellement d\u00e9serte. Santorin a \u00e9t\u00e9 plac\u00e9e jeudi 6 f\u00e9vrier en \"\u00e9tat d'urgence\" apr\u00e8s une nouvelle s\u00e9rie de secousses sismiques qui a frapp\u00e9 ce haut-lieu\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\/2025\/02\/carte-grece-santorin.jpg?fit=981%2C548&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/carte-grece-santorin.jpg?fit=981%2C548&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/carte-grece-santorin.jpg?fit=981%2C548&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/02\/carte-grece-santorin.jpg?fit=981%2C548&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":826,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-caldera-du-santorin-se-reveille-t-elle\/","url_meta":{"origin":26668,"position":1},"title":"La caldera du Santorin se r\u00e9veille-t-elle ?","author":"Admin","date":"27 mars 2012","format":false,"excerpt":"Le volcan de l\u2019\u00eele de Santorin, en Gr\u00e8ce, subit actuellement d\u2019importantes d\u00e9formations. Ce supervolcan devient progressivement de plus en plus intense depuis un an. L\u2019\u00eele de Santorin, en Gr\u00e8ce, abrite un volcan dont l\u2019activit\u00e9 est actuellement en recrudescence. Depuis un peu plus d\u2019un an, une s\u00e9rie de s\u00e9ismes a \u00e9t\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":"santorin","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/wordpress\/wp-content\/uploads\/2012\/03\/santorin-1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2083,"url":"https:\/\/www.laterredufutur.com\/accueil\/santorin-le-volcan-se-reveille\/","url_meta":{"origin":26668,"position":2},"title":"Santorin : le volcan se r\u00e9veille ?","author":"Admin","date":"6 juillet 2014","format":false,"excerpt":"Les autorit\u00e9s grecques sont confront\u00e9es \u00e0 un casse-t\u00eate : comment r\u00e9agir aux r\u00e9centes \u00e9tudes volcanologiques qui indiquent un regain d'activit\u00e9 sur l'\u00eele de Santorin ? Vers 1600 avant notre \u00e8re, une gigantesque \u00e9ruption a d\u00e9truit l'\u00eele de Santorin, en mer \u00c9g\u00e9e, la fa\u00e7onnant telle que nous la connaissons aujourd'hui :\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":"santorin","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/wordpress\/wp-content\/uploads\/2012\/03\/santorin-1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":21046,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-nord-de-lislande-frappe-par-un-intense-essaim-de-plus-de-1-500-tremblements-de-terre\/","url_meta":{"origin":26668,"position":3},"title":"Le nord de l&rsquo;Islande frapp\u00e9 par un intense essaim de plus de 1 500 tremblements de terre","author":"Admin","date":"21 juin 2020","format":false,"excerpt":"Un essaim sismique intense avec des tremblements de terre de M5,7 et M5,4 secoue actuellement les villes et villages du nord de l'Islande. Pendant ce temps, les responsables ont des preuves que le volcan Gr\u00edmsv\u00f6tn se pr\u00e9pare pour la prochaine \u00e9ruption plus au sud ... L'Islande est tr\u00e8s g\u00e9ologiquement active\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\/2020\/06\/seismes-juin2020-islande-1.jpg?fit=1000%2C563&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/06\/seismes-juin2020-islande-1.jpg?fit=1000%2C563&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/06\/seismes-juin2020-islande-1.jpg?fit=1000%2C563&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/06\/seismes-juin2020-islande-1.jpg?fit=1000%2C563&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":23214,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-palma-tremble-avec-le-plus-fort-tremblement-de-terre-jusqua-aujourdhui-48-egalement-ressenti-a-tenerife\/","url_meta":{"origin":26668,"position":4},"title":"La Palma tremble avec le plus fort tremblement de terre jusqu&rsquo;\u00e0 aujourd&rsquo;hui, 4,8, \u00e9galement ressenti \u00e0 Tenerife","author":"Admin","date":"20 octobre 2021","format":false,"excerpt":"La secousse, qui s'est produite mardi 19 octobre 2021 peu avant 23 heures, a \u00e9t\u00e9 ressentie sur l'Isla Bonita avec une intensit\u00e9 maximale de V, dans une escalade qui a atteint XII, et a \u00e9galement \u00e9t\u00e9 ressentie dans plusieurs municipalit\u00e9s de Tenerife. Les scientifiques de PEVOLCA affirment que l'essaim sismique\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\/2021\/10\/epicentre-seisme-19-octobre-2021-la-palma.jpg?fit=1187%2C624&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/epicentre-seisme-19-octobre-2021-la-palma.jpg?fit=1187%2C624&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/epicentre-seisme-19-octobre-2021-la-palma.jpg?fit=1187%2C624&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/epicentre-seisme-19-octobre-2021-la-palma.jpg?fit=1187%2C624&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/epicentre-seisme-19-octobre-2021-la-palma.jpg?fit=1187%2C624&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":21183,"url":"https:\/\/www.laterredufutur.com\/accueil\/nouveaux-tremblements-de-terre-dans-le-volcan-cumbre-vieja\/","url_meta":{"origin":26668,"position":5},"title":"Nouveaux tremblements de terre dans le volcan Cumbre Vieja","author":"Admin","date":"30 juillet 2020","format":false,"excerpt":"L'Institut Volcanologique des Canaries pr\u00e9cise que les habitants de la zone n'ont pas ressenti les tremblements de terre et qu'il est tr\u00e8s probable que l'essaim continuera dans les prochains jours. L'\u00e9pisode d'essaim sismique subi par le volcan Cumbre Vieja, sur l'\u00eele de La Palma, a continu\u00e9 \u00e0 se r\u00e9p\u00e9ter au\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\/2020\/07\/cumbre-vieja-ils-canaries-seismes-juillet-2020.png?fit=1200%2C738&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/07\/cumbre-vieja-ils-canaries-seismes-juillet-2020.png?fit=1200%2C738&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/07\/cumbre-vieja-ils-canaries-seismes-juillet-2020.png?fit=1200%2C738&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/07\/cumbre-vieja-ils-canaries-seismes-juillet-2020.png?fit=1200%2C738&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/07\/cumbre-vieja-ils-canaries-seismes-juillet-2020.png?fit=1200%2C738&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/26668","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=26668"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/26668\/revisions"}],"predecessor-version":[{"id":26670,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/26668\/revisions\/26670"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/24786"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=26668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=26668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=26668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}