{"id":16071,"date":"2017-11-27T18:19:00","date_gmt":"2017-11-27T17:19:00","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=16071"},"modified":"2017-11-27T18:19:00","modified_gmt":"2017-11-27T17:19:00","slug":"le-volcan-agung-a-bali-proche-dune-forte-eruption","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-agung-a-bali-proche-dune-forte-eruption\/","title":{"rendered":"Le volcan Agung \u00e0 Bali proche d&rsquo;une forte \u00e9ruption"},"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>Le monde entier a les yeux riv\u00e9s sur le volcan Agung: explosera, explosera pas? Dans le doute, Bali est en alerte maximale, suite aux secousses et aux petites \u00e9ruptions ressenties ces derniers jours.<\/p>\n<p>Tous ces signaux font craindre une \u00e9ruption d\u00e9vastatrice, comme celle de 1963, qui avait tu\u00e9 plus de 1500 personnes. Pourtant, il est impossible pour les chercheurs de savoir v\u00e9ritablement ce qu&rsquo;il va se passer dans les heures et jours \u00e0 venir.<\/p>\n<p>Agung, lui, est plut\u00f4t du type explosif. Cela veut dire que lors d&rsquo;une \u00e9ruption, le sommet explose et projette une colonne de magma et de cendres dans l&rsquo;atmosph\u00e8re.<\/p>\n<p>S&rsquo;il y a de nombreuses nuances, Agung est m\u00eame \u00ab\u00a0tr\u00e8s typique\u00a0\u00bb, pr\u00e9cise Bruno Scaillet chercheur au CNRS. Mais comment s&rsquo;explique cette diff\u00e9rence? Par la pr\u00e9sence ou non d&rsquo;eau dans le magma. S&rsquo;il y en a, quand le magma remonte doucement (car il est moins lourd que la roche), l&rsquo;eau se transforme en gaz.<\/p>\n<p>Logiquement, ce gaz augmente la pression, comme dans une bouteille de champagne. \u00ab\u00a0Mais chaque volcan a un comportement sp\u00e9cial. Le bouchon peut \u00eatre plus ou moins \u00e9tanche. Si le gaz passe, ce sera comme une bouteille de champagne qu&rsquo;on a laiss\u00e9 sans bouchon avant de la remuer\u00a0\u00bb, explique Bruno Scaillet.<\/p>\n<p>A l&rsquo;inverse, si le bouchon est tr\u00e8s herm\u00e9tique, cela peut \u00eatre catastrophique. Le probl\u00e8me, c&rsquo;est que dans le cas d&rsquo;Agung, impossible de savoir pour le moment si le gaz s&rsquo;\u00e9chappe suffisamment ou non.<\/p>\n<p>\u00ab\u00a0Actuellement les observations sur place donnent une hauteur de panache autour de 3-4 km\u00a0\u00bb<\/p>\n<p>Si cela vous semble important, il faut tout de m\u00eame noter que les deux grandes \u00e9ruptions connues de l&rsquo;Agung, en 1843 et 1963, sont class\u00e9es 5 sur l&rsquo;indice VEI, qui monte jusqu&rsquo;\u00e0 8. \u00ab\u00a0C&rsquo;est-\u00e0-dire un volume d&rsquo;\u00e9jecta (de cendres) de plus de 1 km3 et la colonne \u00e9ruptive autour de 20-30 km d&rsquo;altitude\u00a0\u00bb, pr\u00e9cise le chercheur.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16072\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-agung-a-bali-proche-dune-forte-eruption\/volcan-agung-1\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-1.jpg?fit=1240%2C827&amp;ssl=1\" data-orig-size=\"1240,827\" 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-agung-1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-1.jpg?fit=800%2C534&amp;ssl=1\" class=\"alignnone size-full wp-image-16072\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-1.jpg?resize=1240%2C827\" alt=\"\" width=\"1240\" height=\"827\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-1.jpg?w=1240&amp;ssl=1 1240w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-1.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-1.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-1.jpg?resize=800%2C534&amp;ssl=1 800w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16073\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-agung-a-bali-proche-dune-forte-eruption\/volcan-agung-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-2.jpg?fit=795%2C530&amp;ssl=1\" data-orig-size=\"795,530\" 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-agung-2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-2.jpg?fit=795%2C530&amp;ssl=1\" class=\"alignnone size-full wp-image-16073\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-2.jpg?resize=795%2C530\" alt=\"\" width=\"795\" height=\"530\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-2.jpg?w=795&amp;ssl=1 795w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-2.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-2.jpg?resize=768%2C512&amp;ssl=1 768w\" sizes=\"auto, (max-width: 795px) 100vw, 795px\" \/> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16074\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-agung-a-bali-proche-dune-forte-eruption\/volcan-agung-3\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-3.jpg?fit=848%2C1200&amp;ssl=1\" data-orig-size=\"848,1200\" 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-agung-3\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-3.jpg?fit=565%2C800&amp;ssl=1\" class=\"alignnone size-full wp-image-16074\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-3.jpg?resize=848%2C1200\" alt=\"\" width=\"848\" height=\"1200\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-3.jpg?w=848&amp;ssl=1 848w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-3.jpg?resize=212%2C300&amp;ssl=1 212w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-3.jpg?resize=768%2C1087&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-3.jpg?resize=565%2C800&amp;ssl=1 565w\" sizes=\"auto, (max-width: 848px) 100vw, 848px\" \/><\/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<figure id=\"attachment_16075\" aria-describedby=\"caption-attachment-16075\" style=\"width: 534px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16075\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-agung-a-bali-proche-dune-forte-eruption\/mount-agung-volcano-is-seen-spewing-smoke-and-ash-in-bali-indonesia\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-4.jpg?fit=534%2C356&amp;ssl=1\" data-orig-size=\"534,356\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;REUTERS&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;Mount Agung volcano is seen spewing smoke and ash in Bali, Indonesia, November 26, 2017 in this picture obtained from social media. EMILIO KUZMA-FLOYD\/via REUTERS    ATTENTION EDITORS - MUST ON SCREEN COURTESY EMILIO KUZMA-FLOYD \/ @EYES_OF_A_NOMAD.  THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT. NO RESALES. NO ARCHIVES     TPX IMAGES OF THE DAY&quot;,&quot;created_timestamp&quot;:&quot;1511681737&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;Mount Agung volcano is seen spewing smoke and ash in Bali, Indonesia&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Mount Agung volcano is seen spewing smoke and ash in Bali, Indonesia\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Mount Agung volcano is seen spewing smoke and ash in Bali, Indonesia, November 26, 2017 in this picture obtained from social media. EMILIO KUZMA-FLOYD\/via REUTERS    ATTENTION EDITORS &amp;#8211; MUST ON SCREEN COURTESY EMILIO KUZMA-FLOYD \/ @EYES_OF_A_NOMAD.  THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT. NO RESALES. NO ARCHIVES     TPX IMAGES OF THE DAY&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-4.jpg?fit=534%2C356&amp;ssl=1\" class=\"size-full wp-image-16075\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-4.jpg?resize=534%2C356\" alt=\"\" width=\"534\" height=\"356\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-4.jpg?w=534&amp;ssl=1 534w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-4.jpg?resize=300%2C200&amp;ssl=1 300w\" sizes=\"auto, (max-width: 534px) 100vw, 534px\" \/><figcaption id=\"caption-attachment-16075\" class=\"wp-caption-text\">Mount Agung volcano is seen spewing smoke and ash in Bali, Indonesia, November 26, 2017 in this picture obtained from social media. EMILIO KUZMA-FLOYD\/via REUTERS ATTENTION EDITORS &#8211; MUST ON SCREEN COURTESY EMILIO KUZMA-FLOYD \/ @EYES_OF_A_NOMAD. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT. NO RESALES. NO ARCHIVES TPX IMAGES OF THE DAY<\/figcaption><\/figure>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16076\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-agung-a-bali-proche-dune-forte-eruption\/volcan-agung-5\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-5.jpg?fit=795%2C530&amp;ssl=1\" data-orig-size=\"795,530\" 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-agung-5\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-5.jpg?fit=795%2C530&amp;ssl=1\" class=\"alignnone size-full wp-image-16076\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-5.jpg?resize=795%2C530\" alt=\"\" width=\"795\" height=\"530\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-5.jpg?w=795&amp;ssl=1 795w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-5.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-5.jpg?resize=768%2C512&amp;ssl=1 768w\" sizes=\"auto, (max-width: 795px) 100vw, 795px\" \/> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16077\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-agung-a-bali-proche-dune-forte-eruption\/volcan-agung-6\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-6.jpg?fit=640%2C431&amp;ssl=1\" data-orig-size=\"640,431\" 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-agung-6\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-6.jpg?fit=640%2C431&amp;ssl=1\" class=\"alignnone size-full wp-image-16077\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-6.jpg?resize=640%2C431\" alt=\"\" width=\"640\" height=\"431\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-6.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-6.jpg?resize=300%2C202&amp;ssl=1 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16078\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-agung-a-bali-proche-dune-forte-eruption\/volcan-agung-7\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-7.jpg?fit=1000%2C625&amp;ssl=1\" data-orig-size=\"1000,625\" 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-agung-7\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-7.jpg?fit=800%2C500&amp;ssl=1\" class=\"alignnone size-full wp-image-16078\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-7.jpg?resize=1000%2C625\" alt=\"\" width=\"1000\" height=\"625\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-7.jpg?w=1000&amp;ssl=1 1000w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-7.jpg?resize=300%2C188&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-7.jpg?resize=768%2C480&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-7.jpg?resize=800%2C500&amp;ssl=1 800w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>On n&rsquo;en est donc pas encore l\u00e0. Et il est m\u00eame possible que l&rsquo;Agung se calme, sans provoquer de d\u00e9g\u00e2ts majeurs. Mais dans le cas contraire? Il se provoque alors une explosion. Le \u00ab\u00a0bouchon\u00a0\u00bb de la bouteille saute. \u00ab\u00a0Parfois, le sommet du volcan peut \u00eatre d\u00e9capit\u00e9\u00a0\u00bb, explique Bruno Scaillet.<\/p>\n<p>Il y aura alors des coul\u00e9es de lave, plut\u00f4t lentes, ainsi qu&rsquo;une pluie de cendre. Mais le pire, ce sont certainement les nu\u00e9es ardentes, ou nuages pyroclastiques. Le type le plus rare, et le plus dangereux, a lieu \u00ab\u00a0quand le jet de l&rsquo;\u00e9ruption monte tr\u00e8s haut, \u00e0 plus d&rsquo;une dizaine de kilom\u00e8tres\u00a0\u00bb, d\u00e9taille le chercheur. \u00ab\u00a0Si la quantit\u00e9 et la vitesse sont suffisantes, le magma et le gaz n&rsquo;a pas le temps de refroidir\u00a0\u00bb.<\/p>\n<p>Ce jet, c&rsquo;est un m\u00e9lange tr\u00e8s chaud (1050\u00b0C en 1963) de cendres, de gaz et de magma explos\u00e9. Expuls\u00e9 avec une forte pression, il grimpe dans le ciel tr\u00e8s vite&#8230; puis redescend, d\u00e9valant les flancs de la montagne \u00e0 des centaines de kilom\u00e8tres-heure.<\/p>\n<p>Ce sont ces nuages br\u00fblants, une v\u00e9ritable avalanche de cendres, qui sont responsables de la majorit\u00e9 des d\u00e9c\u00e8s li\u00e9s \u00e0 l&rsquo;\u00e9ruption de l&rsquo;Agung en 1963.<\/p>\n<p>C&rsquo;est en se basant sur ces sc\u00e9narios pr\u00e9c\u00e9dents, sur l&rsquo;avanc\u00e9e de la lave et des nu\u00e9es ardentes, que les zones d&rsquo;\u00e9vacuation sont d\u00e9finies. Avec un peu de chances, ces d\u00e9placements n&rsquo;auront servi \u00e0 rien, si le volcan reste relativement calme.<\/p>\n<p>Les autorit\u00e9s pourraient par contre, th\u00e9oriquement, avoir sous-estim\u00e9 l&rsquo;\u00e9ruption. \u00ab\u00a0Les mod\u00e8les disent qu&rsquo;une \u00e9ruption comme celle de 1963 arrive environ une fois par si\u00e8cle\u00a0\u00bb, selon Bruno Scaillet. Mais ce n&rsquo;est qu&rsquo;une hypoth\u00e8se. \u00ab\u00a0Il n&rsquo;est pas exclu qu&rsquo;un \u00e9v\u00e9nement beaucoup plus important puisse avoir lieu\u00a0\u00bb, pr\u00e9cise le chercheur.<\/p>\n<p>extrait et source :&nbsp;<a href=\"http:\/\/www.huffingtonpost.fr\/2017\/11\/27\/pourquoi-le-volcan-agung-a-bali-risque-dexploser-et-ce-quil-pourrait-se-passer-apres_a_23288964\/\" target=\"_blank\" rel=\"noopener\">http:\/\/www.huffingtonpost.fr\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"16071\">(665)<\/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>Le monde entier a les yeux riv\u00e9s sur le volcan Agung: explosera, explosera pas? Dans le doute, Bali est en&#8230;<\/p>\n","protected":false},"author":1,"featured_media":16076,"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":"Le volcan Agung \u00e0 Bali proche d'une forte \u00e9ruption @laterredufutur","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":[6558,377,374,671,1382,2954,48],"class_list":["post-16071","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seismes-et-volcans","tag-agung","tag-cendres","tag-eruption","tag-explosion","tag-indonesie","tag-java","tag-volcan","wpcat-19-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/11\/volcan-agung-5.jpg?fit=795%2C530&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-4bd","jetpack-related-posts":[{"id":19174,"url":"https:\/\/www.laterredufutur.com\/accueil\/eruptions-spectaculaires-des-volcans-agung-indonesie-et-sarychev-russie-augmentation-de-lactivite-sismique-des-volcans-kusatsu-shirane-et-hakoneyama-japon\/","url_meta":{"origin":16071,"position":0},"title":"Eruptions spectaculaires des volcans Agung (Indon\u00e9sie) et Sarychev (Russie) &#8211; Augmentation de l&rsquo;activit\u00e9 sismique des volcans Kusatsu Shirane et Hakoneyama (Japon)","author":"Admin","date":"19 mai 2019","format":false,"excerpt":"Presque tous les jours, des volcans entrent en \u00e9ruption le long de la ceinture de feu. Voici ces derni\u00e8res \u00e9ruptions volcaniques dans le monde entier. Volcan Agung, Indon\u00e9sie Le mont Agung, dans le district de Karangasem, \u00e0 Bali, a de nouveau explos\u00e9 le samedi 18 mai 2019 \u00e0 2 h\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\/05\/volcan-agung-kubuind.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/volcan-agung-kubuind.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/volcan-agung-kubuind.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/volcan-agung-kubuind.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/volcan-agung-kubuind.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":16215,"url":"https:\/\/www.laterredufutur.com\/accueil\/six-volcans-a-surveiller-de-pres-en-2018\/","url_meta":{"origin":16071,"position":1},"title":"Six volcans \u00e0 surveiller de pr\u00e8s en 2018","author":"Admin","date":"28 janvier 2018","format":false,"excerpt":"Chaque semaine de 2017, les scientifiques ont enregistr\u00e9 entre 14 et 27 \u00e9ruptions de volcans. Voici ceux d'entre eux qui pr\u00e9sentent les signes les plus inqui\u00e9tants d'activit\u00e9 pour 2018. Si l\u2019\u00e9ruption du Mont Agung a focalis\u00e9 l\u2019attention ces derniers mois, les \u00e9ruptions volcaniques sont monnaie courante en Indon\u00e9sie. Sur 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\/2018\/01\/le-volcan-popocatepetl-au-mexique.jpg?fit=1000%2C500&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/01\/le-volcan-popocatepetl-au-mexique.jpg?fit=1000%2C500&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/01\/le-volcan-popocatepetl-au-mexique.jpg?fit=1000%2C500&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/01\/le-volcan-popocatepetl-au-mexique.jpg?fit=1000%2C500&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2786,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-volcanisme-et-ses-consequences\/","url_meta":{"origin":16071,"position":2},"title":"Le Volcanisme et ses cons\u00e9quences","author":"Admin","date":"25 avril 2005","format":false,"excerpt":"Le volcanisme en Indon\u00e9sie est \u00e0 l'origine d'un certain nombre de \"records\" - celui du nombre des volcans actifs - celui du nombre de victimes : 170.000 depuis l'an 1.500. - celui du plus grand lac de crat\u00e8re de la plan\u00e8te : le lac Toba, \u00e0 Sumatra, (100 km de\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\/spaw\/images\/coulee1999etna.jpeg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":6207,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-volcans-influencent-le-climat-de-latlantique-nord\/","url_meta":{"origin":16071,"position":3},"title":"Les volcans influencent le climat de l&rsquo;Atlantique nord","author":"Admin","date":"15 mai 2015","format":false,"excerpt":"En r\u00e9fl\u00e9chissant les rayons du soleil, les particules \u00e9mises lors d\u2019\u00e9ruptions volcaniques majeures refroidissent l\u2019atmosph\u00e8re et ont un effet direct sur l'atmosph\u00e8re mais assez bref, deux \u00e0 trois ans. Pourtant, elles modifient pendant plus de 20 ans la circulation oc\u00e9anique de l\u2019Atlantique nord, laquelle module le climat europ\u00e9en. C\u2019est ce\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/Eruption-Volcan-Calbuco.jpg?fit=770%2C433&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/Eruption-Volcan-Calbuco.jpg?fit=770%2C433&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/Eruption-Volcan-Calbuco.jpg?fit=770%2C433&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/Eruption-Volcan-Calbuco.jpg?fit=770%2C433&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":22702,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-rafales-delectricite-invisibles-provenant-des-volcans-signalent-des-eruptions-explosives\/","url_meta":{"origin":16071,"position":4},"title":"Des rafales d&rsquo;\u00e9lectricit\u00e9 invisibles provenant des volcans signalent des \u00e9ruptions explosives","author":"Admin","date":"1 juillet 2021","format":false,"excerpt":"Des signaux \u00e9lectriques myst\u00e9rieux pourraient aider \u00e0 pr\u00e9venir les aviateurs de l'imminence de panaches de cendres volcaniques. Le Sakurajima, l'un des volcans les plus actifs du Japon, \u00e9blouit souvent par ses \u00e9clairs volcaniques spectaculaires dans un ciel rempli de cendres. Mais le volcan peut \u00e9galement produire des \u00e9clats d'activit\u00e9 \u00e9lectrique\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\/07\/Sakurajima-eclairs.jpg?fit=1030%2C580&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/Sakurajima-eclairs.jpg?fit=1030%2C580&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/Sakurajima-eclairs.jpg?fit=1030%2C580&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/Sakurajima-eclairs.jpg?fit=1030%2C580&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":13594,"url":"https:\/\/www.laterredufutur.com\/accueil\/forte-eruption-explosive-du-volcan-aso-au-japon-depuis-janvier-1989\/","url_meta":{"origin":16071,"position":5},"title":"Forte \u00e9ruption explosive du volcan Aso au Japon depuis Janvier 1989","author":"Admin","date":"8 octobre 2016","format":false,"excerpt":"Forte \u00e9ruption explosive du volcan Aso au Japon depuis Janvier 1989 et il envoie une colonne de cendres jusqu'\u00e0 11 km dans l'atmosph\u00e8re. Ce samedi matin, dans le sud du Japon, le volcan du Mont Aso est entr\u00e9 en \u00e9ruption. Si aucune victime n'est \u00e0 d\u00e9plorer, quelques d\u00e9g\u00e2ts ont \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":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/10\/aso-volcano-eruption.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/10\/aso-volcano-eruption.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/10\/aso-volcano-eruption.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/10\/aso-volcano-eruption.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/10\/aso-volcano-eruption.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16071","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=16071"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16071\/revisions"}],"predecessor-version":[{"id":16079,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16071\/revisions\/16079"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/16076"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=16071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=16071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=16071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}