{"id":4061,"date":"2018-12-09T14:14:03","date_gmt":"2018-12-09T14:14:03","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=4061"},"modified":"2018-12-09T14:16:31","modified_gmt":"2018-12-09T14:16:31","slug":"risques-geologiques-en-indonesie","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/12\/09\/risques-geologiques-en-indonesie\/","title":{"rendered":"Risques g\u00e9ologiques en Indon\u00e9sie"},"content":{"rendered":"<p>Un livre assez r\u00e9cent (en anglais) pr\u00e9sente les nombreux risques g\u00e9ologiques en Indon\u00e9sie et leurs r\u00e9ductions \u00e9ventuelles\u00a0: Geohazards in Indonesia &#8211; Earth Science for Disaster Risk Reduction, P.R. Cumins, I. Meilano (eds), Special Publication n\u00b0441, The Geological Society, Londres, 2017, 1 vol. rel. 18 x 25,5 cm, 218 p., ill., ISBN : 97817862399662. Prix : 90 \u00a3.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4065\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/12\/Geohazards_Indonesia.jpg.low_-317x450.jpg\" alt=\"\" width=\"317\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/12\/Geohazards_Indonesia.jpg.low_-317x450.jpg 317w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/12\/Geohazards_Indonesia.jpg.low_-768x1091.jpg 768w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/12\/Geohazards_Indonesia.jpg.low_-721x1024.jpg 721w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/12\/Geohazards_Indonesia.jpg.low_.jpg 831w\" sizes=\"auto, (max-width: 317px) 100vw, 317px\" \/><\/p>\n<p><!--more--><\/p>\n<p>J\u2019en propose l\u2019analyse dans le num\u00e9ro 147 (septembre 2018, p. 61) de la revue G\u00e9ochronique (une co-\u00e9dition BRGM &#8211; Bureau de Recherches G\u00e9ologiques et Mini\u00e8res et SGF &#8211; Soci\u00e9t\u00e9 G\u00e9ologique de France, voir aussi mon blog des 29\/3\/2018 et 22\/6\/2018)\u00a0:<\/p>\n<p>L\u2019Indon\u00e9sie est un pays tr\u00e8s peupl\u00e9, situ\u00e9 en contexte g\u00e9otectonique de subduction (18000 km de limites de plaques\u00a0!), r\u00e9guli\u00e8rement confront\u00e9 aux col\u00e8res de la Terre. Elle d\u00e9tient de tristes de records en nombre de victimes\u00a0: rappelons les \u00e9ruptions du Tambora en 1815, celle du Krakatoa en 1883, le s\u00e9isme de Sumatra en 2004, suivi d\u2019un tsunami qui ravagea l\u2019oc\u00e9an Indien.<\/p>\n<p>Ce livre explique les investissements entrepris ces vingt derni\u00e8res ann\u00e9es pour r\u00e9duire les cons\u00e9quences d\u00e9sastreuses de ces risques g\u00e9ologiques. Les onze articles pr\u00e9sentent quatre types de cataclysmes\u00a0:<\/p>\n<p>(1) Les tsunamis. Le catalogue historique de Wichmann renseigne sur plusieurs dizaines de s\u00e9ismes et de tsunamis durant la p\u00e9riode 1538-1877. Il est compl\u00e9t\u00e9 par les donn\u00e9es les plus r\u00e9centes. Les enseignements du pass\u00e9 peuvent constituer des cl\u00e9s pour l\u2019avenir (amplitude du ph\u00e9nom\u00e8ne, zones d\u00e9truites, etc.).<\/p>\n<p>(2) Les s\u00e9ismes. Ils r\u00e9sultent de multiples failles (notamment la faille d\u00e9crochante de Sumatra), dont les activit\u00e9s sont bien r\u00e9pertori\u00e9es durant l\u2019\u00e8re Quaternaire, dans cette r\u00e9gion situ\u00e9e aux fronti\u00e8res de plusieurs plaques tectoniques (Eurasie, Australie, Pacifique et Philippines) convergentes. \u00c0 d\u00e9faut de pr\u00e9voir les s\u00e9ismes, un syst\u00e8me d\u2019information d\u2019alerte en temps r\u00e9el est mis au point.<\/p>\n<p>(3) Les \u00e9ruptions volcaniques. Par exemple, un mod\u00e8le de simulation de dispersion des cendres lors d\u2019\u00e9ruptions futures prend en compte les mat\u00e9riaux (taille des particules) et les vecteurs de transport (vent, saison des pluies).<\/p>\n<p>(4) Les volcans de boue. Le cas exceptionnel du volcan Lusi, qui, entre 2006 et 2010, a inond\u00e9 une partie de Java, \u00e0 l\u2019origine d\u2019une gigantesque catastrophe \u00e9cologique est revisit\u00e9\u00a0: origine naturelle (s\u00e9isme) ou artificielle (forage de recherche d\u2019hydrocarbures)\u00a0? La d\u00e9formation du sol a du jouer un r\u00f4le important.<\/p>\n<p>Cet ouvrage tr\u00e8s bien document\u00e9 pr\u00e9sente clairement diff\u00e9rents risques g\u00e9ologiques majeurs dans une r\u00e9gion fortement expos\u00e9e. 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>Un livre assez r\u00e9cent (en anglais) pr\u00e9sente les nombreux risques g\u00e9ologiques en Indon\u00e9sie et leurs r\u00e9ductions \u00e9ventuelles\u00a0: Geohazards in Indonesia &#8211; Earth Science for Disaster Risk Reduction, P.R. Cumins, I. Meilano (eds), Special Publication n\u00b0441, The Geological Society, Londres, 2017, 1 vol. rel. 18 x 25,5 cm, 218 p., ill., ISBN : 97817862399662. Prix : &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/12\/09\/risques-geologiques-en-indonesie\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Risques g\u00e9ologiques en Indon\u00e9sie<\/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":[6,7],"tags":[21,403,1387,17,1089,1388,48,331,1389,1390,313,22,770,333,23,3,82],"class_list":["post-4061","post","type-post","status-publish","format-standard","hentry","category-actualites","category-livres","tag-bardintzeff","tag-brgm","tag-cumins","tag-eruption","tag-geochronique","tag-geohazard","tag-indonesie","tag-krakatoa","tag-lusi","tag-meilano","tag-risque-geologique","tag-seisme","tag-sgf","tag-tambora","tag-tsunami","tag-volcan","tag-volcan-de-boue"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Risques g\u00e9ologiques en Indon\u00e9sie, 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\/2018\/12\/09\/risques-geologiques-en-indonesie\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Risques g\u00e9ologiques en Indon\u00e9sie, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Un livre assez r\u00e9cent (en anglais) pr\u00e9sente les nombreux risques g\u00e9ologiques en Indon\u00e9sie et leurs r\u00e9ductions \u00e9ventuelles\u00a0: Geohazards in Indonesia &#8211; Earth Science for Disaster Risk Reduction, P.R. Cumins, I. Meilano (eds), Special Publication n\u00b0441, The Geological Society, Londres, 2017, 1 vol. rel. 18 x 25,5 cm, 218 p., ill., ISBN : 97817862399662. 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