{"id":4767,"date":"2019-07-07T15:03:07","date_gmt":"2019-07-07T15:03:07","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=4767"},"modified":"2019-07-08T14:52:32","modified_gmt":"2019-07-08T14:52:32","slug":"volcans-et-seismes-sur-bfmtv-et-cnews-tv","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/07\/07\/volcans-et-seismes-sur-bfmtv-et-cnews-tv\/","title":{"rendered":"Volcans et s\u00e9ismes sur BFMTV et CNews TV"},"content":{"rendered":"

Volcans et s\u00e9ismes ont fait l\u2019actualit\u00e9 de la semaine pass\u00e9e. Une violente explosion du Stromboli (voir mon blog du 4\/7\/2019) a malheureusement fait un mort.<\/p>\n

Deux s\u00e9ismes importants\u00a0(le 4\/7, magnitude = 6,4, profondeur 8,7 km, puis le 5\/7, magnitude = 7,1, soit environ 10 fois plus puissant), ont affect\u00e9 le sud de la Californie, \u00e0 240 km au Nord-Est de Los Angeles, dans la r\u00e9gion de Ridgecrest dans comt\u00e9 de Kern et ont \u00e9t\u00e9 aussi ressentis dans le comt\u00e9 voisin de San Bernardino. Ces s\u00e9ismes \u00e9taient les plus importants \u00e0 frapper cette r\u00e9gion depuis 1999.<\/p>\n

Un s\u00e9isme encore plus puissant et destructeur (le \u201cBig One\u201d, de magnitude > 8) est redout\u00e9 t\u00f4t ou tard en Californie. Les derniers s\u00e9ismes tr\u00e8s importants remontent \u00e0 1857 (magnitude = 8,3) dans la r\u00e9gion de Los Angeles et \u00e0 1906 (magnitude = 7,9) dans la r\u00e9gion de San Francisco. La r\u00e9currence d\u2019un tel s\u00e9isme est en effet de 150 \u00e0 200 ans.<\/p>\n

Ce risque sismique est li\u00e9 \u00e0 l\u2019existence de la faille majeure de San Andreas (longue de 1300 km) qui coupe la Californie en \u00e9charpe, selon la direction Nord-Ouest \u2013 Sud-Est. Le compartiment Ouest coulisse vers le Nord par rapport au compartiment Est, \u00e0 la vitesse moyenne de 5 cm \/ an soit 5 m \/ si\u00e8cle !<\/p>\n

J\u2019ai \u00e9t\u00e9 invit\u00e9 en plateau, dimanche 7\/7\/2019 \u00e0 13h30, sur CNews TV, par Marc Menant et Thomas Lacroix, pour faire un tour d\u2019horizon des s\u00e9ismes en Californie, de l\u2019\u00e9ruption du Stromboli mais aussi des risques volcaniques et sismiques en France m\u00e9tropolitaine.<\/p>\n

Revoir l\u2019\u00e9change :<\/p>\n

https:\/\/www.youtube.com\/watch?v=GW2CusQ9_sg<\/a><\/p>\n

(le dossier volcans-s\u00e9ismes commence \u00e0 21 mn 54s)<\/p>\n

\"\"Marc Menant et Jacques-Marie Bardintzeff \u00e0 CNews le dimanche 7\/7\/2019 (\u00a9 J.M. Bardintzeff).<\/p>\n

\"\"Jacques-Marie Bardintzeff, volcanologue, en direct sur CNews le dimanche 7\/7\/2019 (\u00a9 Isabelle Bardintzeff).<\/p>\n

<\/p>\n

La veille, samedi 6\/7\/2019, j\u2019avais \u00e9t\u00e9 invit\u00e9 sur BFMTV, en compagnie de Badaoui Rouhban, sismologue et expert en pr\u00e9vention des catastrophes, par C\u00e9line Pitelet, Emma Benassi et Diana Kherfallah, pour les journaux de 22 h et de 23 h, \u00e0 propos des s\u00e9ismes en Californie.<\/p>\n

Revoir le d\u00e9bat :<\/p>\n

https:\/\/www.bfmtv.com\/mediaplayer\/video\/etats-unis-les-seismes-en-californie-ravivent-la-peur-du-big-one-1173587.html<\/a><\/p>\n

ou bien :<\/p>\n

https:\/\/tv-programme.com\/week-end-direct-de-bfmtv_emission\/replay\/etats-unis-les-seismes-en-californie-ravivent-la-peur-du-quot-big-one-quot_5d213c1bd0aa3<\/a><\/p>\n

ou encore :<\/p>\n

https:\/\/actu.orange.fr\/monde\/videos\/etats-unis-les-seismes-en-californie-ravivent-la-peur-du-big-one-CNT000001h1BMj.html<\/a><\/p>\n

\"\"<\/p>\n

De gauche \u00e0 droite, Emma Benassi (BFMTV), \u00c9tienne Girard (journaliste politique), Jacques-Marie Bardintzeff (volcanologue), Badaoui Rouhban (sismologue) \u00e0 BFMTV le samedi 6\/7\/2019 en soir\u00e9e (\u00a9 J.M. Bardintzeff).<\/p>\n","protected":false},"excerpt":{"rendered":"

Volcans et s\u00e9ismes ont fait l\u2019actualit\u00e9 de la semaine pass\u00e9e. Une violente explosion du Stromboli (voir mon blog du 4\/7\/2019) a malheureusement fait un mort. Deux s\u00e9ismes importants\u00a0(le 4\/7, magnitude = 6,4, profondeur 8,7 km, puis le 5\/7, magnitude = 7,1, soit environ 10 fois plus puissant), ont affect\u00e9 le sud de la Californie, \u00e0 … Continuer la lecture de Volcans et s\u00e9ismes sur BFMTV et CNews TV<\/span> →<\/span><\/a><\/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":[21,1619,1621,1620,1622,1612,1623,1624,1625,1626,1627,1628,1629,22,1542,3],"class_list":["post-4767","post","type-post","status-publish","format-standard","hentry","category-actualites","tag-bardintzeff","tag-benassi","tag-bfmtv","tag-big-one","tag-californie","tag-cnews","tag-faille","tag-girard","tag-kherfallah-lacroix","tag-menant","tag-pitelet","tag-rouhban","tag-san-andreas","tag-seisme","tag-stromboli","tag-volcan"],"yoast_head":"\nVolcans et s\u00e9ismes sur BFMTV et CNews TV, 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\/2019\/07\/07\/volcans-et-seismes-sur-bfmtv-et-cnews-tv\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Volcans et s\u00e9ismes sur BFMTV et CNews TV, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Volcans et s\u00e9ismes ont fait l\u2019actualit\u00e9 de la semaine pass\u00e9e. Une violente explosion du Stromboli (voir mon blog du 4\/7\/2019) a malheureusement fait un mort. 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