{"id":1315,"date":"2022-10-01T21:13:30","date_gmt":"2022-10-01T19:13:30","guid":{"rendered":"http:\/\/laspremontois.fr\/?p=1315"},"modified":"2022-10-16T19:54:18","modified_gmt":"2022-10-16T17:54:18","slug":"conference-sur-les-seismes-a-colomars","status":"publish","type":"post","link":"http:\/\/laspremontois.fr\/?p=1315","title":{"rendered":"Conf\u00e9rence sur les s\u00e9ismes \u00e0 Colomars"},"content":{"rendered":"\n

L\u2019association de <\/strong>Colomars<\/strong> \u00ab Sciences pour tous \u00bb, organise des conf\u00e9rences mensuelles  et gratuites accessibles \u00e0 un large public : \u00ab les vendredis de la Science \u00bb.  Ce vendredi 30 septembre c\u2019\u00e9tait le chercheur C\u00e9dric <\/strong>Twardzik<\/strong> qui animait une conf\u00e9rence sur le th\u00e8me : \u00ab Qu\u2019est ce qu\u2019un s\u00e9isme et comment nos connaissances ont \u00e9volu\u00e9 depuis l\u2019antiquit\u00e9 ? \u00bb. Passionnant\u2026<\/strong><\/p>\n\n\n\n

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S\u00e9isme de Lisbonne de 1755<\/figcaption><\/figure>\n\n\n\n

L\u2019\u00e9tude scientifique a vraiment d\u00e9but\u00e9 apr\u00e8s le terrible s\u00e9isme de Lisbonne de 1775. De mani\u00e8re empirique, la vitesse de propagation des ondes a \u00e9t\u00e9 \u00e9tudi\u00e9e. Puis des cartographies de plus en plus pr\u00e9cises des lieux de s\u00e9ismes ont \u00e9t\u00e9 r\u00e9alis\u00e9s avec le d\u00e9veloppement d\u2019un r\u00e9seau sismologique mondial \u00e0 partir de la fin du XIXeme. La qualit\u00e9 des enregistrements s\u2019est d\u00e9velopp\u00e9e et les donn\u00e9es de plus en plus abondantes. Parall\u00e8lement  la th\u00e9orie de la tectonique des plaques a vue le jour au d\u00e9but du XX\u00e8me si\u00e8cle.<\/p>\n\n\n\n\n\n\n\n


Pourtant \u00e0 ce jour, malgr\u00e9 tous ces progr\u00e8s, les chercheurs ne sont toujours pas en mesure de faire des pr\u00e9visions pr\u00e9cises. Il existe cependant des mod\u00e8les bas\u00e9s sur les probabilit\u00e9s qui sont \u00e0 retrouver sur le site  :<\/p>\n\n\n\n

https:\/\/www.richterx.com<\/a><\/p>\n\n\n\n

Les chercheurs comptent d\u00e9sormais sur l\u2019intelligence artificielle avec les \u00e9tudes de ruptures en laboratoire, pour affiner les pr\u00e9visions.<\/p>\n\n\n\n

Ce qui est certain, c\u2019est qu\u2019il n\u2019y a pas de corr\u00e9lation entre les cons\u00e9quences humaines et \u00e9conomiques et la taille des sinistres. Ainsi le s\u00e9isme d\u2019Haiti de 2010 de magnitude 7 a \u00e9t\u00e9 tr\u00e8s meurtrier  (200 000 morts) alors que des seimes plus importants ont faits beaucoup moins de morts : c\u2019est la qualit\u00e9 des constructions qui est souvent en question.<\/p>\n\n\n\n

Prochaine conf\u00e9rence le vendredi 28 octobre \u00e0 19h au Fort Casal. Le sujet sera la maladie d\u2019Alzheimer : cause, pr\u00e9vention et traitement.<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

L\u2019association de Colomars \u00ab Sciences pour tous \u00bb, organise des conf\u00e9rences mensuelles  et gratuites accessibles \u00e0 un large public : \u00ab les vendredis de la Science \u00bb.  Ce vendredi 30 septembre c\u2019\u00e9tait le chercheur C\u00e9dric Twardzik qui animait une conf\u00e9rence sur le th\u00e8me : \u00ab Qu\u2019est ce qu\u2019un s\u00e9isme et … Continuer la lecture →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":[],"categories":[49],"tags":[],"yoast_head":"\nConf\u00e9rence sur les s\u00e9ismes \u00e0 Colomars -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/laspremontois.fr\/?p=1315\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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