{"id":26651,"date":"2022-02-15T06:46:31","date_gmt":"2022-02-15T06:46:31","guid":{"rendered":"https:\/\/lesvolcansnews.net\/2022\/02\/15\/situation-des-volcans-la-sismicite-nest-plus-inquietante-ovg\/"},"modified":"2022-02-15T06:46:31","modified_gmt":"2022-02-15T06:46:31","slug":"situation-des-volcans-la-sismicite-nest-plus-inquietante-ovg","status":"publish","type":"post","link":"https:\/\/lesvolcansnews.net\/?p=26651","title":{"rendered":"Situation des volcans : La sismicit\u00e9 n&#8217;est plus inqui\u00e9tante (OVG)"},"content":{"rendered":"\n<p><strong><em>Les volcans Nyiragongo et Nyamulagira demeurent actifs mais la sismicit\u00e9 n&#8217;est plus inqui\u00e9tante car elle a baiss\u00e9 et la moyenne est de 5 s\u00e9ismes volcaniques par jour localis\u00e9s dans le champ de Nyiragongo.<\/em><\/strong><\/p>\n\n\n\n<p>C&#8217;est ce que renseigne l&#8217;observatoire Volcanologique de Goma (OVG) au travers son bulletin hebdomadaire N\u00b0043 publi\u00e9 la soir\u00e9e de ce lundi et couvrant la p\u00e9riode du 7 au 14 F\u00e9vrier 2022 et dont lesvolcansnews.net vient de se procurer copie ce mardi 15 f\u00e9vrier 2022.<\/p>\n\n\n\n<p>Dans ce document, l&#8217;OVG parle des faits saillants ci apr\u00e8s:<\/p>\n\n\n\n<p>De la sismologie : comparativement aux semaines pr\u00e9c\u00e9dentes, le niveau des vibrations continuent (t\u00e9nors volcaniques) mais a sensiblement baiss\u00e9 dans le champ du volcan Nyiragongo. De m\u00eame durant cette p\u00e9riode, l&#8217;observatoire indiqu\u00e9 avoir enregistr\u00e9 \u00e0 moyenne 5 s\u00e9ismes par jour localis\u00e9s dans le champ du volcan Nyiragongo. Le dimanche 13 F\u00e9vrier 2022, un s\u00e9isme tectonique de magnitude 2,2 a \u00e9t\u00e9 ressenti par la population de la ville de Goma et a \u00e9t\u00e9 localis\u00e9 au point des coordonn\u00e9es 29,23\u00b0E\/1,71\u00b0S.<\/p>\n\n\n\n<p>Le lundi 14 F\u00e9vrier 2022, au Nord et Sud de la r\u00e9gion des Virunga, deux tremblements de terre respectivement de magnitude 4,9 et 4,7 ont \u00e9t\u00e9 enregistr\u00e9s et localis\u00e9s par notre r\u00e9seau aux points de cordonn\u00e9e 4,226\u00b0S, 29, 328\u00b0E, profondeur 10km et 0,572\u00b0N, 30,327\u00b0E, profondeur 11 Km. Ces deux derniers ont \u00e9t\u00e9 ressenti par la de Fizi, d&#8217;Uvira et de Bujumbura pour le premier et de Watalinga et Ouganda pour le second. Les informations nous report\u00e9es jusqu&#8217;\u00e0 ce moment signalent des d\u00e9g\u00e2ts mat\u00e9riels importants caus\u00e9s par ces deux s\u00e9ismes dans les zones proches des \u00e9picentres renseigne l&#8217;observatoire.<\/p>\n\n\n\n<p>De la G\u00e9od\u00e9sie : les temp\u00e9ratures dans les fractures situ\u00e9es sur le flanc du sud de volcan Nyiragongo ont \u00e9t\u00e9 stable. Elles n&#8217;ont donc pas beaucoup charg\u00e9 par rapport aux mesures faites aux semaines ant\u00e9rieures. Pour ces m\u00eames fractures, leurs \u00e9cartements sont rest\u00e9s stables.<\/p>\n\n\n\n<p>De la G\u00e9ochimie : Aucune variation importante de la concentration du dioxyde de carbone (CO2) n&#8217;a \u00e9t\u00e9 d\u00e9tect\u00e9e dans nos diff\u00e9rents sites d&#8217;observations. Quant \u00e0 ce qui est du dioxyde de soufre (SO2), il continue \u00e0 s&#8217;observer dans le panache volcanique mais en faible quantit\u00e9 par rapport aux semaines pr\u00e9c\u00e9dentes.<\/p>\n\n\n\n<p>De la technique : Tous les r\u00e9seaux de stations sismographiques, DOAS, GPS, M\u00e9t\u00e9o et mesures de temp\u00e9ratures, fonctionnent normalement rapporte l&#8217;OVG.<\/p>\n\n\n\n<p>Par ailleurs, l&#8217;observatoire renseigne qu&#8217;il poursuit avec ses missions d&#8217;observations sur terrain \u00e0 partir de son r\u00e9seau de surveillance.<\/p>\n\n\n\n<p>Victoire Muliwavyo<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les volcans Nyiragongo et Nyamulagira demeurent actifs mais la sismicit\u00e9 n&#8217;est plus inqui\u00e9tante car elle a baiss\u00e9 et la moyenne est de 5 s\u00e9ismes volcaniques par jour localis\u00e9s dans le<\/p>\n","protected":false},"author":14,"featured_media":26650,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-26651","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-societe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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