{"id":486,"date":"2015-01-22T16:16:13","date_gmt":"2015-01-22T16:16:13","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=486"},"modified":"2015-03-28T15:10:50","modified_gmt":"2015-03-28T15:10:50","slug":"eruption-du-fogo-au-cap-vert","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/01\/22\/eruption-du-fogo-au-cap-vert\/","title":{"rendered":"\u00c9ruption du Fogo au Cap-Vert"},"content":{"rendered":"

Le volcan Fogo, situ\u00e9 dans l\u2019archipel du Cap-Vert en Afrique, au large du S\u00e9n\u00e9gal, se r\u00e9veille assez brusquement le 23 novembre 2014, apr\u00e8s un sommeil de 19 ans. De nombreux s\u00e9ismes ont \u00e9t\u00e9 ressentis la nuit pr\u00e9c\u00e9dente. Imm\u00e9diatement, un c\u00f4ne lat\u00e9ral \u00e9met d\u2019importantes fontaines et coul\u00e9es de lave qui s\u2019\u00e9panchent sur plusieurs kilom\u00e8tres dans la caldeira (Ch\u00e3 das Caldeiras) \u00e0 la vitesse de 50 m\/h.<\/p>\n

\"Bardintzeff.SAM_0695\"<\/a><\/p>\n

Explosion nocturne du Fogo et projection de bombes volcaniques incandescentes le 13 janvier 2015 (\u00a9 J.M. Bardintzeff).<\/p>\n

<\/p>\n

Le village de Portella est recouvert le 4 d\u00e9cembre puis celui de Bangaeira le 8 d\u00e9cembre, obligeant 1400 habitants \u00e0 \u00e9vacuer, en emportant un minimum d\u2019effets personnels. La route d\u2019acc\u00e8s est coup\u00e9e, reconstruite et recoup\u00e9e \u00e0 plusieurs reprises\u00a0; la Maison du Parc Naturel, la coop\u00e9rative vinicole sont d\u00e9truites. Les d\u00e9g\u00e2ts mat\u00e9riels sont tr\u00e8s importants mais aucune victime n\u2019est \u00e0 d\u00e9plorer.<\/p>\n

\u00a0\"Bardinteff.SAM_0958\"<\/a><\/strong><\/p>\n

Le 16 janvier 2015, le c\u00f4ne lat\u00e9ral (\u00e0 gauche) \u00e9met une colonne de cendre de 2 km de hauteur, qui, entra\u00een\u00e9e par les vents, passe au-dessus de l\u2019\u00e9difice volcanique de 2829 m d\u2019altitude\u00a0; la coul\u00e9e de lave, p\u00e9trifi\u00e9e, est visible au premier plan \u00e0 droite (\u00a9 J.M. Bardintzeff).<\/p>\n

La colonne de gaz monte jusqu\u2019\u00e0 9 km et les scientifiques de l\u2019Observatoire Volcanologique du Cap-Vert et de l\u2019Institut Volcanologique des Canaries estiment que jusqu\u2019\u00e0 12000 tonnes de dioxyde de soufre (SO2<\/sub>) sont produits dans une journ\u00e9e. Une dizaine de personnes ont \u00e9t\u00e9 s\u00e9v\u00e8rement incommod\u00e9es par les gaz. L\u2019a\u00e9roport de S\u00e3o Felipe a \u00e9t\u00e9 ferm\u00e9 durant quelques semaines.<\/p>\n

\"Bardintzeff.SAM_0554\"<\/a><\/p>\n

Le Fogo en pleine activit\u00e9 (\u00a9 J.M. Bardintzeff).<\/p>\n

L\u2019avanc\u00e9e des coul\u00e9es de lave diminue fortement vers la mi-d\u00e9cembre mais l\u2019\u00e9ruption continue. Vers la mi-janvier, des colonnes de cendres montent \u00e0 2 km de hauteur et des bombes incandescentes sont toujours \u00e9mises. L\u2019\u00e9ruption dure toujours apr\u00e8s deux mois d\u2019activit\u00e9 mais semble cependant en diminution.<\/p>\n

Cette exp\u00e9dition a \u00e9t\u00e9 organis\u00e9e avec \u00ab\u00a080 jours voyages\u00a0\u00bb (Guide\u00a0: Sylvain Chermette, Conseiller scientifique et p\u00e9dagogique\u00a0: Jacques-Marie Bardintzeff).<\/p>\n","protected":false},"excerpt":{"rendered":"

Le volcan Fogo, situ\u00e9 dans l\u2019archipel du Cap-Vert en Afrique, au large du S\u00e9n\u00e9gal, se r\u00e9veille assez brusquement le 23 novembre 2014, apr\u00e8s un sommeil de 19 ans. De nombreux s\u00e9ismes ont \u00e9t\u00e9 ressentis la nuit pr\u00e9c\u00e9dente. Imm\u00e9diatement, un c\u00f4ne lat\u00e9ral \u00e9met d\u2019importantes fontaines et coul\u00e9es de lave qui s\u2019\u00e9panchent sur plusieurs kilom\u00e8tres dans la … Continuer la lecture de \u00c9ruption du Fogo au Cap-Vert<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":488,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[124,115,123,86,17,114,2,3],"class_list":["post-486","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-bombe-volcanique","tag-cap-vert","tag-cendre-volcanique","tag-coulee-de-lave","tag-eruption","tag-fogo","tag-une","tag-volcan"],"yoast_head":"\n\u00c9ruption du Fogo au Cap-Vert, par Jacques-Marie Bardintzeff<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/01\/22\/eruption-du-fogo-au-cap-vert\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c9ruption du Fogo au Cap-Vert, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Le volcan Fogo, situ\u00e9 dans l\u2019archipel du Cap-Vert en Afrique, au large du S\u00e9n\u00e9gal, se r\u00e9veille assez brusquement le 23 novembre 2014, apr\u00e8s un sommeil de 19 ans. De nombreux s\u00e9ismes ont \u00e9t\u00e9 ressentis la nuit pr\u00e9c\u00e9dente. 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