{"id":480,"date":"2015-01-21T16:52:01","date_gmt":"2015-01-21T16:52:01","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=480"},"modified":"2015-01-21T16:56:24","modified_gmt":"2015-01-21T16:56:24","slug":"leruption-islandaise-continue","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/01\/21\/leruption-islandaise-continue\/","title":{"rendered":"L\u2019\u00e9ruption islandaise continue !"},"content":{"rendered":"<p>L\u2019\u00e9ruption qui a d\u00e9but\u00e9 fin ao\u00fbt 2014 \u00e0 Holuhraun en Islande continue fin janvier 2015, apr\u00e8s 5 mois d\u2019activit\u00e9. La fissure \u00e9ruptive, longue de plusieurs centaines de m\u00e8tres, continue \u00e0 vomir de la lave, qui recouvre maintenant 85 km<sup>2<\/sup>, sous plus d\u2019une dizaine de m\u00e8tres d\u2019\u00e9paisseur, soit un volume total de 1,1 km<sup>3<\/sup>. Le d\u00e9bit moyen des coul\u00e9es est de 50-70 m<sup>3<\/sup>\/s.<\/p>\n<p>Entre 50 et 70 s\u00e9ismes sont enregistr\u00e9s chaque jour, sous le volcan voisin Bardarbunga (magnitudes d\u00e9passant parfois 5) et sous le dyke d\u2019alimentation (magnitudes inf\u00e9rieures \u00e0 2 le plus souvent). Il s\u2019agit de la plus grande \u00e9ruption lavique mondiale depuis celle du Laki, \u00e9galement en Islande, qui dura 9 mois, de juin 1783 \u00e0 f\u00e9vrier 1784.<\/p>\n<p><!--more--><\/p>\n<p>La pollution en SO<sub>2<\/sub> a atteint 21\u00a0000 m\u00b5\/m<sup>3<\/sup> (en r\u00e9gion inhabit\u00e9e mais de nombreuses souris ont \u00e9t\u00e9 retrouv\u00e9es mortes). Le Nordic Volcanological Center a not\u00e9, fin octobre &#8211; d\u00e9but novembre, 6 000 m\u00b5\/m<sup>3<\/sup> vers H\u00f6fn, au sud-est de l\u2019\u00eele, 4 800 m\u00b5\/m<sup>3<\/sup> \u00e0 H\u00fasav\u00edk, au nord et 1 000 m\u00b5\/m<sup>3<\/sup> dans la capitale Reykjavik au sud-ouest. Le 13 janvier, la pollution \u00e9tait de 7 800 m\u00b5\/m<sup>3<\/sup> \u00e0 J\u00f6kuldalur valley. Ceci est significatif quand on sait qu\u2019un niveau de 2 000 m\u00b5\/m<sup>3<\/sup> peut d\u00e9j\u00e0 incommoder des personnes. Des pluies acides (pH = 3) sont \u00e9galement not\u00e9es.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/01\/Bardintzeff.SAM_8648.jpg\" rel=\"lightbox[480]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-482\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/01\/Bardintzeff.SAM_8648-450x337.jpg\" alt=\"Bardintzeff.SAM_8648\" width=\"490\" height=\"367\" srcset=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/01\/Bardintzeff.SAM_8648-450x337.jpg 450w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/01\/Bardintzeff.SAM_8648-1024x768.jpg 1024w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/01\/Bardintzeff.SAM_8648.jpg 1701w\" sizes=\"auto, (max-width: 490px) 100vw, 490px\" \/><\/a><\/p>\n<p>La coul\u00e9e de lave semble dessiner une t\u00eate de diable\u00a0! (\u00a9 J.-M. Bardintzeff).<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>L\u2019\u00e9ruption qui a d\u00e9but\u00e9 fin ao\u00fbt 2014 \u00e0 Holuhraun en Islande continue fin janvier 2015, apr\u00e8s 5 mois d\u2019activit\u00e9. La fissure \u00e9ruptive, longue de plusieurs centaines de m\u00e8tres, continue \u00e0 vomir de la lave, qui recouvre maintenant 85 km2, sous plus d\u2019une dizaine de m\u00e8tres d\u2019\u00e9paisseur, soit un volume total de 1,1 km3. Le d\u00e9bit &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/01\/21\/leruption-islandaise-continue\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">L\u2019\u00e9ruption islandaise continue !<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[99,17,107,98,122],"class_list":["post-480","post","type-post","status-publish","format-standard","hentry","category-actualites","tag-bardarbunga","tag-eruption","tag-holuhraun","tag-islande","tag-pollution"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>L\u2019\u00e9ruption islandaise continue ! , 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\/21\/leruption-islandaise-continue\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u2019\u00e9ruption islandaise continue ! , par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"L\u2019\u00e9ruption qui a d\u00e9but\u00e9 fin ao\u00fbt 2014 \u00e0 Holuhraun en Islande continue fin janvier 2015, apr\u00e8s 5 mois d\u2019activit\u00e9. La fissure \u00e9ruptive, longue de plusieurs centaines de m\u00e8tres, continue \u00e0 vomir de la lave, qui recouvre maintenant 85 km2, sous plus d\u2019une dizaine de m\u00e8tres d\u2019\u00e9paisseur, soit un volume total de 1,1 km3. 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