{"id":16215,"date":"2018-01-28T20:00:46","date_gmt":"2018-01-28T19:00:46","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=16215"},"modified":"2018-01-21T20:45:10","modified_gmt":"2018-01-21T19:45:10","slug":"six-volcans-a-surveiller-de-pres-en-2018","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/six-volcans-a-surveiller-de-pres-en-2018\/","title":{"rendered":"Six volcans \u00e0 surveiller de pr\u00e8s en 2018"},"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>Chaque semaine de 2017, les scientifiques ont enregistr\u00e9 entre 14 et 27 \u00e9ruptions de volcans. Voici ceux d&rsquo;entre eux qui pr\u00e9sentent les signes les plus inqui\u00e9tants d&rsquo;activit\u00e9 pour 2018.<\/p>\n<p>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 139 volcans actifs que compte l\u2019archipel, 18 ont d\u00e9clench\u00e9 des alertes pour cause d\u2019activit\u00e9 sismique plus intense que la normale, de d\u00e9formation du sol ou d\u2019\u00e9missions de gaz.<\/p>\n<p>\u00c0 un niveau plus global, on notera que chaque semaine de 2017 aura vu entre 14 \u00e0 27 volcans entrer en \u00e9ruption.<\/p>\n<p>L\u2019activit\u00e9 volcanique se concentre le long de la Ceinture de feu, une r\u00e9gion de l\u2019oc\u00e9an Pacifique o\u00f9 plusieurs plaques tectoniques se rencontrent, provoquant des tremblements de terre et ce que les g\u00e9ologues appellent du volcanisme de zones de subduction.<\/p>\n<p>D\u2019autres \u00e9ruptions sont le fait soit de volcans continentaux, \u00e0 l\u2019image du Ol Doinyo Lengai en Tanzanie, soit de volcans insulaires, comme \u00e0 Hawa\u00ef. Sachant que nombre d\u2019\u00e9ruptions, intervenant dans le fond des oc\u00e9ans, se d\u00e9robent \u00e0 nos yeux; les volcans sous-marins les plus actifs se situent dans l\u2019arc des \u00eeles Tonga-Kermadec, dans le sud-ouest du Pacifique.<\/p>\n<p>L&rsquo;Indon\u00e9sie, la menace volcanique la plus forte<br \/>\nLes \u00e9ruptions actuelles non sous-marines vont de douces effusions de lave \u00e0 des explosions mod\u00e9r\u00e9es; mais elles restent minimes du point de vue de l\u2019histoire de la Terre. M\u00eame l\u2019\u00e9ruption en 1815 du Mont Tambora, en Indon\u00e9sie, d\u00e9sign\u00e9e comme la plus importante \u00e9ruption de l\u2019histoire r\u00e9cente, ne fait pas le poids compar\u00e9e aux super \u00e9ruptions intervenues dans le pass\u00e9 g\u00e9ologique, \u00e0 l\u2019image de celle du volcan Toba sur l\u2019\u00eele de Sumatra, il y a quelque 74.000 ann\u00e9es. Toba a crach\u00e9 70 fois plus de magma que Tambora, ce qui contribua \u00e0 plonger la Terre dans un nouvel \u00e2ge glaciaire et aurait m\u00eame caus\u00e9 ce qu\u2019on appelle un \u00abgoulot d\u2019\u00e9tranglement g\u00e9n\u00e9tique\u00bb, perturbant l\u2019\u00e9volution humaine.<\/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>En fait, Toba fut responsable de la plus importante \u00e9ruption de ces 25 derniers millions d\u2019ann\u00e9es, il y a donc peu de chance qu\u2019une catastrophe similaire se reproduise de sit\u00f4t. N\u00e9anmoins, ce sont les \u00e9ruptions petites \u00e0 mod\u00e9r\u00e9es qui repr\u00e9sentent le plus souvent une menace volcanique constante. Aujourd\u2019hui, autour du globe, 800 millions de personnes vivent \u00e0 moins de 100 kilom\u00e8tres d\u2019un volcan actif, et 29 millions \u00e0 moins de 10 kilom\u00e8tres.<\/p>\n<p>La \u00abmenace volcanique\u00bb \u2013une mesure qui combine le niveau du risque et le nombre de personnes qui y sont expos\u00e9es\u2013 est de loin la plus forte en Indon\u00e9sie; viennent ensuite les Philippines, le Japon, le Mexique et l\u2019\u00c9thiopie. Ces 5 pays concentrent \u00e0 eux seuls 90% du total des menaces volcaniques. Si l\u2019on prend en compte le crit\u00e8re du risque sur les populations, ce risque est le plus \u00e9lev\u00e9 sur de petites \u00eeles comme Montserrat, une zone totalement volcanique.<\/p>\n<p>Quels sont les volcans \u00e0 surveiller en 2018? Certains ayant montr\u00e9 des signes d\u2019activit\u00e9 pourront se calmer, quand d\u2019autres entreront dans une phase d\u2019\u00e9ruption au cours des mois \u00e0 venir et devront alors \u00eatre observ\u00e9s et surveill\u00e9s de pr\u00e8s.<\/p>\n<p>\u00c0 c\u00f4t\u00e9 du Mont Agung, voici les volcans \u00e0 suivre de pr\u00e8s cette ann\u00e9e.<\/p>\n<p>Les Monts Kirishima au Japon, Le Merapi en Indon\u00e9sie, L\u2019\u00d6r\u00e6faj\u00f6kull en Islande, Le Popocat\u00e9petl au Mexique, Le Villarrica au Chili, Le Kilauea aux \u00c9tats-Unis.<\/p>\n<p>source : <a href=\"http:\/\/www.slate.fr\/story\/155927\/environnement-volcans-2018?utm_campaign=Echobox&amp;utm_medium\" target=\"_blank\" rel=\"noopener\">http:\/\/www.slate.fr\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"16215\">(986)<\/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>Chaque semaine de 2017, les scientifiques ont enregistr\u00e9 entre 14 et 27 \u00e9ruptions de volcans. Voici ceux d&rsquo;entre eux qui&#8230;<\/p>\n","protected":false},"author":1,"featured_media":16216,"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":"Six volcans \u00e0 surveiller de pr\u00e8s en 2018 @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":[952,3179,374,1382,370,1081,259,598,49],"class_list":["post-16215","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seismes-et-volcans","tag-952","tag-chili","tag-eruption","tag-indonesie","tag-islande","tag-mexique","tag-usa","tag-volcanisme","tag-volcans","wpcat-19-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/01\/le-volcan-popocatepetl-au-mexique.jpg?fit=1000%2C500&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-4dx","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":16215,"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":25780,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-ruang-entre-en-eruption-et-menace-lindonesie-dun-tsunami\/","url_meta":{"origin":16215,"position":1},"title":"Le volcan Ruang entre en \u00e9ruption et menace l&rsquo;Indon\u00e9sie d&rsquo;un tsunami","author":"Admin","date":"19 avril 2024","format":false,"excerpt":"Au nord de l\u2019archipel de l\u2019Indon\u00e9sie, l\u2019activit\u00e9 du volcan Ruang, en \u00e9ruption depuis mardi 16 avril 2024, s\u2019est intensifi\u00e9e dans la nuit de mercredi \u00e0 jeudi. Le crat\u00e8re du volcan s\u2019est embras\u00e9 et a crach\u00e9 de la lave, poussant les autorit\u00e9s \u00e0 relever le niveau d\u2019alerte au plus haut 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":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/04\/volcan-ruang.webp?fit=960%2C540&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/04\/volcan-ruang.webp?fit=960%2C540&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/04\/volcan-ruang.webp?fit=960%2C540&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/04\/volcan-ruang.webp?fit=960%2C540&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":18393,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-karangetang-indonesie-est-entre-en-eruption\/","url_meta":{"origin":16215,"position":2},"title":"Le volcan Karangetang (Indon\u00e9sie) est entr\u00e9 en \u00e9ruption","author":"Admin","date":"11 f\u00e9vrier 2019","format":false,"excerpt":"Le volcan indon\u00e9sien, le Karangetang, sur l'\u00eele de Sulawesi, est entr\u00e9 en \u00e9ruption depuis novembre 2018, mais c'est intensifi\u00e9 depuis d\u00e9but f\u00e9vrier 2019, provoquant l'\u00e9vacuation d'une centaine d'habitants. Le Karangetang, en indon\u00e9sien Gunung Karangetang, aussi appel\u00e9 Api Siau, litt\u00e9ralement en fran\u00e7ais \u00ab feu de Siau \u00bb, est un volcan d'Indon\u00e9sie\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\/02\/Karangetang-volcan.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\/02\/Karangetang-volcan.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/Karangetang-volcan.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/Karangetang-volcan.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/Karangetang-volcan.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":10388,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-volcan-indonesien-soputan-est-entre-en-eruption\/","url_meta":{"origin":16215,"position":3},"title":"Le volcan indon\u00e9sien Soputan est entr\u00e9 en \u00e9ruption","author":"Admin","date":"7 janvier 2016","format":false,"excerpt":"Dans le th\u00e8me des volcans qui entrent en \u00e9ruption en Indon\u00e9sie, voil\u00e0 encore un nouveau b\u00e9b\u00e9 qui va faire parler de lui. Le volcan Soputan, situ\u00e9 dans la province de Sulawesi, dans l'est de l'Indon\u00e9sie, est entr\u00e9 en \u00e9ruption \u00e0 20 h 53 heure locale lundi 4 janvier 2016. C'est\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\/01\/volcan-indonesien-soputan.jpg?fit=1000%2C672&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/volcan-indonesien-soputan.jpg?fit=1000%2C672&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/volcan-indonesien-soputan.jpg?fit=1000%2C672&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/volcan-indonesien-soputan.jpg?fit=1000%2C672&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":7230,"url":"https:\/\/www.laterredufutur.com\/accueil\/indonesie-eruption-du-volcan-sinabung-des-milliers-dhabitants-evacues\/","url_meta":{"origin":16215,"position":4},"title":"Indon\u00e9sie: \u00e9ruption du volcan Sinabung, des milliers d&rsquo;habitants \u00e9vacu\u00e9s","author":"Admin","date":"5 juin 2015","format":false,"excerpt":"Pr\u00e8s de 3.000 habitants ont \u00e9t\u00e9 \u00e9vacu\u00e9s en Indon\u00e9sie apr\u00e8s une \u00e9ruption du volcan Sinabung, sur l'\u00eele de Sumatra, qui a entra\u00een\u00e9 le d\u00e9clenchement du plus haut niveau d'alerte, a indiqu\u00e9 jeudi un responsable local. Apr\u00e8s une forte augmentation de l'activit\u00e9 volcanique constat\u00e9e mardi soir, la police et l'arm\u00e9e ont\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\/sinabung-volcan.jpg?fit=1024%2C700&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/sinabung-volcan.jpg?fit=1024%2C700&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/sinabung-volcan.jpg?fit=1024%2C700&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/sinabung-volcan.jpg?fit=1024%2C700&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2088,"url":"https:\/\/www.laterredufutur.com\/accueil\/pourquoi-les-volcans-se-reveillent-ils-en-meme-temps\/","url_meta":{"origin":16215,"position":5},"title":"Pourquoi les Volcans se R\u00e9veillent-ils en M\u00eame Temps ?","author":"Admin","date":"8 juillet 2014","format":false,"excerpt":"Cette observation n'est, fort heureusement, qu'une fausse impression. Il est vrai que, ces derniers mois, plusieurs volcans se sont r\u00e9veill\u00e9s : le Piton de la Fournaise \u00e0 la R\u00e9union (qui a connu, en avril, \"l'\u00e9ruption du si\u00e8cle\"), le Stromboli et l'Etna en Italie, le Merapi en Indon\u00e9sie, le Kilauea \u00e0\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\/wordpress\/wp-content\/uploads\/2014\/07\/.._photos_Sangeang-Api-5.JPG?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16215","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=16215"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16215\/revisions"}],"predecessor-version":[{"id":16217,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16215\/revisions\/16217"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/16216"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=16215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=16215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=16215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}