{"id":19680,"date":"2021-04-03T05:52:57","date_gmt":"2021-04-03T05:52:57","guid":{"rendered":"https:\/\/lesvolcansnews.net\/?p=19680"},"modified":"2021-04-03T10:06:24","modified_gmt":"2021-04-03T10:06:24","slug":"volcan-nyiragongo-lovg-note-une-faible-activite-depuis-2-semaines","status":"publish","type":"post","link":"https:\/\/lesvolcansnews.net\/?p=19680","title":{"rendered":"Volcan Nyiragongo\u00a0: l\u2019OVG note une faible activit\u00e9 depuis 2 semaines"},"content":{"rendered":"\n

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Le bulletin de la derni\u00e8re quinzaine de mars 2021 de l\u2019observatoire volcanologique de Goma (OVG) vient d\u2019\u00eatre rendu public. Il pr\u00e9sente une situation plus ou moins favorable.<\/em><\/strong><\/strong><\/p>\n\n\n\n

Comme d\u2019ordinaire, le bulletin s\u2019\u00e9tend sur 4 domaines li\u00e9s \u00e0 l\u2019activit\u00e9 des volcans du nord de Goma mis \u00e0 part la technique et les activit\u00e9s du bureau de l\u2019OVG. Il s\u2019agit du rayonnement thermique, la s\u00e9ismologie, la g\u00e9othermie et fractures ainsi que la g\u00e9ochimie.<\/p>\n\n\n\n

Les donn\u00e9es renseignent qu\u2019il y\u2019a eu une faible radiation thermique au volcan Nyamulagira aussi bien qu\u2019\u00e0 la hauteur de son voisin de Nyiragongo, plus proche de la ville de Goma. De m\u00eame, le niveau du lac de lave du volcan Nyiragongo ne montre pas de variations brutales et se maintient au niveau de P3 comme pour la p\u00e9riode du 1er<\/sup> au 15 mars 2021.<\/p>\n\n\n\n

Si l\u2019activit\u00e9 s\u00e9ismo-volcanique \u00e9tait un peu plus \u00e9lev\u00e9e du 12 au 27 mars au niveau du volcan Nyiragongo, l\u2019OVG note qu\u2019il n\u2019y a pas eu de s\u00e9ismes de cassures qui peuvent provoquer une quelconque situation inqui\u00e9tante. L\u2019activit\u00e9 tectonique a \u00e9t\u00e9 marqu\u00e9e par une faible intensit\u00e9 avec 9 s\u00e9ismes seulement, et cela dans le sud-ouest du lac-Kivu.<\/p>\n\n\n\n

Pour ce qui est de la g\u00e9othermie, le bulletin de l\u2019OVG indique que les temp\u00e9ratures dans les fractures au sud du volcan Nyiragongo ont connu une tendance \u00e0 la baisse dans presque tous les sites.<\/p>\n\n\n\n

Enfin, dans le domaine de la g\u00e9ochimie, la concentration en dioxyde de carbone (CO2) a enregistr\u00e9 quelques diminutions remarquables notamment \u00e0 Bugarura2 et \u00e0 Munigi o\u00f9 la concentration est descendue en dessous de 1%. S\u2019agissant du dioxyde de souffre (SO2), il s\u2019observe une tendance \u00e0 la baisse depuis le mois de janvier 2021 qui se situe autour de 3 tonnes par jour, indique le rapport de l\u2019OVG.<\/p>\n\n\n\n

Il est \u00e9vident que l\u2019activit\u00e9 est soutenue dans les champs des volcans Nyiragongo et Nyamulagira mais elle ne pr\u00e9sente aucune inqui\u00e9tude pour les zones habit\u00e9es (Goma et ses environs) pour le moment, des s\u00e9ismes de cassures majeures n\u2019ayant pas \u00e9t\u00e9 observ\u00e9es durant la p\u00e9riode de la 2\u00e8me<\/sup> quinzaine de Mars, pr\u00e9cise l\u2019observatoire volcanologique de Goma.<\/p>\n\n\n\n

Le centre scientifique annonce aussi avoir enregistr\u00e9 la visite d\u2019un total de 279 personnes au cours de cette p\u00e9riode.\u00a0\u00a0\u00a0<\/p>\n\n\n\n

\u00a0\u00a0<\/strong>Fr\u00e9d\u00e9ric Feruzi<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Le bulletin de la derni\u00e8re quinzaine de mars 2021 de l\u2019observatoire volcanologique de Goma (OVG) vient d\u2019\u00eatre rendu public. Il pr\u00e9sente une situation plus ou moins favorable. Comme d\u2019ordinaire, le<\/p>\n","protected":false},"author":14,"featured_media":19690,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-19680","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-societe"],"yoast_head":"\nVolcan Nyiragongo\u00a0: l\u2019OVG note une faible activit\u00e9 depuis 2 semaines - LES VOLCANS NEWS<\/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:\/\/lesvolcansnews.net\/?p=19680\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Volcan Nyiragongo\u00a0: l\u2019OVG note une faible activit\u00e9 depuis 2 semaines - LES VOLCANS NEWS\" \/>\n<meta property=\"og:description\" content=\"Le bulletin de la derni\u00e8re quinzaine de mars 2021 de l\u2019observatoire volcanologique de Goma (OVG) vient d\u2019\u00eatre rendu public. 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