{"id":536,"date":"2015-03-24T11:44:38","date_gmt":"2015-03-24T10:44:38","guid":{"rendered":"https:\/\/asal.dz\/?p=536"},"modified":"2018-12-23T14:09:19","modified_gmt":"2018-12-23T13:09:19","slug":"le-volcan-chilien-villarrica-vu-par-alsat-2a-apres-son-eruption","status":"publish","type":"post","link":"https:\/\/asal.dz\/?p=536","title":{"rendered":"Le Volcan chilien Villarrica vu par Alsat-2A apr\u00e8s son \u00e9ruption."},"content":{"rendered":"<p class=\"Style94\" align=\"justify\">Le Villarrica est situ\u00e9 au sud du Chili, \u00e0 environ 800 kms de Santiago, \u00e0 la limite entre les r\u00e9gions d\u2019Araucanie (<em>Araucania)<\/em> et des fleuves (<em>Los Rios<\/em>). Les villes les plus proches sont Pucon (17 kms au Nord) et Villarica (30 kms au Nord Ouest).<\/p>\n<p class=\"Style94\" align=\"justify\">Culminant \u00e0 une altitude de\u00a0 2847 m, ce volcan est entr\u00e9 en \u00e9ruption le 3 mars 2015 \u00e0 03h.oo du matin, par une importante \u00e9mission de roches en fusion. Une colonne de cendres et de particules est mont\u00e9e jusqu\u2019\u00e0 3 kms d\u2019altitude et une coul\u00e9e de lave basaltique a d\u00e9val\u00e9 la pente provoquant le d\u00e9placement de 3000 personnes vivant dans cette zone, hautement touristique.<\/p>\n<p class=\"Style94\" align=\"justify\">Cette \u00e9ruption a provoqu\u00e9 ainsi la fonte des glaces situ\u00e9es dans le crat\u00e8re et sur le flanc du volcan, avec un risque de coul\u00e9es de boue.<\/p>\n<p class=\"Style94\">La coul\u00e9e de lave a cess\u00e9 au bout de quelques heures.<\/p>\n<p class=\"Style94\" align=\"justify\">L\u2019image Alsat-2A , prise le 6 mars 2015, soit 03 jours apr\u00e8s l\u2019\u00e9ruption, d\u00e9limite avec pr\u00e9cision les coul\u00e9es ainsi que les zones o\u00f9 les glaces ont fondu.<\/p>\n<p class=\"Style94\" align=\"justify\">Une deuxi\u00e8me image Alsat-2A, prise le 15 mars 2015, indique un d\u00e9gagement de fum\u00e9e \u00e0 partir du crat\u00e8re.<\/p>\n<p class=\"Style94\" align=\"justify\">La derni\u00e8re \u00e9ruption du Villarrica remonte \u00e0 1984, mais une cinquantaine d\u2019\u00e9ruptions sont r\u00e9pertori\u00e9es depuis le milieu du 16\u00e8me si\u00e8cle, faisant de ce volcan l\u2019un des plus actifs d\u2019Am\u00e9rique du Sud.<\/p>\n<p class=\"Style94\" align=\"justify\">De type Stratovolcan, \u00e0 l\u2019instar du Sinabung sur l\u2019\u00eele de Sumatra, le volcan Villarica a commenc\u00e9 son \u00e9dification au pl\u00e9istoc\u00e8ne moyen (entre 780.000 et 126\u00a0000 ans).<\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/chilie1.jpg\" width=\"680\" height=\"542\" border=\"1\" \/><\/p>\n<div class=\"Style101\" align=\"center\">Localisation de la bande Alsat-2A sur fond image satellitaire<\/div>\n<p class=\"Style94\" align=\"center\">\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/chilie2.jpg\" width=\"680\" height=\"435\" border=\"1\" \/><\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/chilie9.jpg\" width=\"680\" height=\"486\" border=\"1\" \/><\/p>\n<p class=\"Style94\" align=\"justify\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/chilie3.jpg\" width=\"662\" height=\"528\" border=\"1\" \/><\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/chilie4.jpg\" width=\"612\" height=\"433\" border=\"1\" \/><\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/chilie5.jpg\" width=\"463\" height=\"509\" border=\"1\" \/><\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/chilie6.jpg\" width=\"651\" height=\"446\" border=\"1\" \/><\/p>\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/chilie7.jpg\" width=\"680\" height=\"441\" border=\"1\" \/><\/p>\n<p class=\"Style94\" align=\"justify\">\n<p class=\"Style94\" align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.asal.dz\/pictures\/chilie8.jpg\" width=\"620\" height=\"440\" border=\"1\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le Villarrica est situ\u00e9 au sud du Chili, \u00e0 environ 800 kms de Santiago, \u00e0 la limite entre les r\u00e9gions d\u2019Araucanie (Araucania) et des fleuves (Los Rios). Les villes les plus proches sont Pucon (17 kms au Nord) et Villarica (30 kms au Nord Ouest). Culminant \u00e0 une altitude de\u00a0 2847 m, ce volcan est [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","footnotes":""},"categories":[3],"tags":[],"class_list":["post-536","post","type-post","status-publish","format-standard","hentry","category-actualites"],"_links":{"self":[{"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/posts\/536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=536"}],"version-history":[{"count":0,"href":"https:\/\/asal.dz\/index.php?rest_route=\/wp\/v2\/posts\/536\/revisions"}],"wp:attachment":[{"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/asal.dz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}