Tsunami na Canarian na barazanar Amurka

Hanyoyin sama na tsibirin La Palma da Cumbre Vieja

Hanyoyin sama na tsibirin La Palma da Cumbre Vieja

Adadin karatu da yawa da kungiyoyi daban-daban suka gudanar sun tabbatar da kasancewar ainihin barazanar samar da a tsunami a cikin tsibirin Canary wanda zai isa shafi da yawa da Amurka, lalata bakin tekun Afirka kuma ya shafi babban ɓangaren Atlantic Turai.

Kodayake akwai wasu karatuttukan da suka yi watsi da wannan yiwuwar, shaidun ilimin ƙasa sun nuna cewa yayin fashewar nan gaba ta dutsen mai suna Cumbre Vieja a tsibirin La Palma, mummunan bala'i na iya faruwa tare da faɗuwar dutsen da ke tsakanin 150 da kuma kilomita 500³ na dutse zuwa teku. Wannan a cikin kansa zai zama abin da ke faruwa na girman girma, amma bayan wannan, abin da ke sa mu magana babban bala'i shi ne tsunami hakan zai haifar da faduwar wannan dutsen zuwa teku.

Sakamakon da kuma shaida

Amfani da misalai don kimanta ƙauracewar ƙasa, girman igiyar ruwan tsunami da zai haifar da zaftarewar wannan nau'in (150-500 km³) a saurin 100 m / s na iya tsallake dukan tekun Atlantika ya isa gabar Arewacin Amurka. tare da taguwar ruwa daga cikin 10-25 mita a cikin mafi munin yanayi.

Idan guguwar wannan girman za ta faru, yankuna kamar su Caribbean ko Florida za su sami matsala sosai, kamar yadda biranen bakin teku kamar New York ko Boston. Kudancin tsibirai na Birtaniyya da Yankin Iberian zai sami tasirin tasirin ƙasa kaɗan, saboda yanayin halittar igiyar ruwa. Batun gabar Afirka ya fi ban tsoro, tunda zai lalace gaba daya. Da lalacewar mutum da kayan abu bazai yuwu ba.

A cikin tarihi, an lura da irin wannan yanayi a cikin Canary tarin tsiburai. El Golfo, wani dutsen mai fitad da wuta da ke gefen arewacin tsibirin Hierro, misali ne. Ta hanyar samo sedal ya kasance mai yiwuwa a nuna cewa a tsunami wanda aka samar ta faduwar wani bangare na tsaunin dutsen mai fitad da wuta gulbin ya isa bakin teku na Madeira (Kilomita 600 yamma da Canaries) kimanin shekaru 15000 da suka gabata. Ginin da ya haifar da wannan tsunami yana da ƙananan girma, don haka tsunami da zaftarewar ƙasa ta haifar a La Palma na iya isa Amurka.

Informationarin bayani - Mutum-mutumi na Liberty ya jinkirta sake buɗe shi har zuwa 4 ga Yuli ,  Japan ta inganta tsarin gargadin tsunami , Girgizar kasa 4,9 ta girgiza tsibirin El Hierro

Source - Geoungiyar ilimin ƙasa na Amurka, Angle13


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