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Marsili is a large undersea volcano in the Tyrrhenian Sea, about south of Naples. The seamount is about 3,000 m (9,800 feet) tall; its peak and crater are about 450 m below the sea surface. Though it has not erupted in recorded history, volcanologists believe that Marsili is a relatively fragile-walled structure, made of low-density and unstable rocks,〔Caratori Tontini F., Cocchi L., Muccini F., Carmisciano C., Marani M., Bonatti E., Ligi M., and Boschi E., Potential-field modelling of collapse-prone submarine volcanoes in the Southern Tyrrhenian Sea (Italy), ''Geophysical Research Letter'' 37 (2010), L03305, .〕 fed by the underlying shallow magma chamber. Volcanologists with the Italian National Institute of Geophysics and Volcanology (INGV) announced on March 29, 2010 that Marsili could erupt at any time, and might experience a catastrophic collapse that would suddenly release vast amounts of magma in an undersea eruption and landslide that could trigger destructive tsunamis on the Italian coast and nearby Mediterranean coastlines. ==See also== *List of volcanoes in Italy *Volcanism in Italy *Seamount *Submarine volcanoes 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Marsili」の詳細全文を読む スポンサード リンク
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