{"id":253154,"date":"2025-07-17T05:43:10","date_gmt":"2025-07-17T05:43:10","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/253154\/"},"modified":"2025-07-17T05:43:10","modified_gmt":"2025-07-17T05:43:10","slug":"un-seisme-de-magnitude-73-au-large-de-lalaska-provoque-une-alerte-au-tsunami","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/253154\/","title":{"rendered":"Un s\u00e9isme de magnitude 7,3 au large de l\u2019Alaska provoque une alerte au tsunami"},"content":{"rendered":"<p>Un puissant <a href=\"https:\/\/www.20minutes.fr\/monde\/tremblement-de-terre\/\" target=\"_blank\" class=\"color-ultramarine c-link\" rel=\"noopener\">tremblement de terre<\/a> a frapp\u00e9 mercredi le sud-ouest de l\u2019<a href=\"https:\/\/www.20minutes.fr\/dossier\/alaska\" target=\"_blank\" class=\"color-ultramarine c-link\" rel=\"noopener\">Alaska<\/a>, poussant les autorit\u00e9s \u00e0 d\u00e9clencher une alerte <a href=\"https:\/\/www.20minutes.fr\/dossier\/tsunami\" target=\"_blank\" class=\"color-ultramarine c-link\" rel=\"noopener\">tsunami<\/a> sur plus de 1.100 kilom\u00e8tres de c\u00f4tes avant de la lever deux heures plus tard. Le s\u00e9isme, de magnitude 7,3, s\u2019est produit en mer, \u00e0 87 km au sud du village de Sand Point, selon l\u2019Institut am\u00e9ricain de g\u00e9ophysique (USGS).<\/p>\n<p>Plusieurs localit\u00e9s de la p\u00e9ninsule d\u2019Alaska, r\u00e9gion peu dens\u00e9ment peupl\u00e9e et expos\u00e9e aux risques sismiques, ont imm\u00e9diatement activ\u00e9 leurs sir\u00e8nes d\u2019alarme. Les habitants ont \u00e9t\u00e9 invit\u00e9s \u00e0 gagner les hauteurs ou \u00e0 se mettre \u00e0 l\u2019abri \u00e0 l\u2019int\u00e9rieur des terres. A Unalaska, les autorit\u00e9s locales ont finalement annonc\u00e9 que les habitants pouvaient rentrer chez eux une fois le risque \u00e9cart\u00e9.<\/p>\n<\/p>\n<p>Un territoire fortement sismique<\/p>\n<p>M\u00eame son de cloche \u00e0 Kodiak, ville portuaire de 5.200 habitants, o\u00f9 le centre d\u2019op\u00e9rations d\u2019urgence a officiellement mis fin \u00e0 l\u2019alerte deux heures apr\u00e8s. Aucun d\u00e9g\u00e2t majeur ni bless\u00e9 n\u2019a \u00e9t\u00e9 signal\u00e9. \u00ab\u00a0Le risque de <a href=\"https:\/\/www.20minutes.fr\/dossier\/victime\" target=\"_blank\" class=\"color-ultramarine c-link\" rel=\"noopener\">victimes<\/a> et de d\u00e9g\u00e2ts est faible\u00a0\u00bb, a confirm\u00e9 l\u2019USGS, tout en pr\u00e9cisant que si la majorit\u00e9 des habitations de la zone sont r\u00e9sistantes aux secousses, certaines structures plus anciennes peuvent rester vuln\u00e9rables.<\/p>\n<p><a href=\"https:\/\/www.20minutes.fr\/monde\/tremblement-de-terre\/\" target=\"_blank\" class=\"c-link c-btn c-btn--primary\" rel=\"noopener\">Nos articles sur les tremblements de terre<\/a><\/p>\n<p>Situ\u00e9 sur la ceinture de feu du <a href=\"https:\/\/www.20minutes.fr\/dossier\/pacifique\" target=\"_blank\" class=\"color-ultramarine c-link\" rel=\"noopener\">Pacifique<\/a>, l\u2019Alaska est l\u2019un des territoires les plus actifs au monde. Le s\u00e9isme le plus violent de son histoire, en\u00a01964, avait atteint une magnitude de 9,2 et provoqu\u00e9 la mort de plus de 130 personnes, notamment \u00e0 Anchorage, tout en g\u00e9n\u00e9rant un tsunami d\u00e9vastateur jusqu\u2019\u00e0 <a href=\"https:\/\/www.20minutes.fr\/dossier\/hawaii\" target=\"_blank\" class=\"color-ultramarine c-link\" rel=\"noopener\">Hawa\u00ef<\/a> et la c\u00f4te ouest des <a href=\"https:\/\/www.20minutes.fr\/monde\/etats-unis\/\" target=\"_blank\" class=\"color-ultramarine c-link\" rel=\"noopener\">Etats-Unis<\/a>. Plus r\u00e9cemment, en juillet\u00a02023, un s\u00e9isme de magnitude 7,2 avait d\u00e9j\u00e0 touch\u00e9 la m\u00eame r\u00e9gion sans faire de victimes.<\/p>\n","protected":false},"excerpt":{"rendered":"Un puissant tremblement de terre a frapp\u00e9 mercredi le sud-ouest de l\u2019Alaska, poussant les autorit\u00e9s \u00e0 d\u00e9clencher une&hellip;\n","protected":false},"author":2,"featured_media":253155,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[47,11,36796,73,1011,27,14,74,12,18565,18690,6012,28],"class_list":{"0":"post-253154","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-international","8":"tag-actualite","9":"tag-actualites","10":"tag-alaska","11":"tag-etats-unis","12":"tag-fr","13":"tag-france","14":"tag-international","15":"tag-monde","16":"tag-news","17":"tag-seismes","18":"tag-tremblement-de-terre","19":"tag-tsunami","20":"tag-world"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/114866985607034037","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/253154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/comments?post=253154"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/253154\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/253155"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=253154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=253154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=253154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}