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Long Island (Papua New Guinea) : ウィキペディア英語版 | Long Island (Papua New Guinea)
Long Island is a volcanic island north of Papua New Guinea. It is separated from the island of New Guinea by Vitiaz Strait. ==Geography== Two stratovolcanoes are located on the island: Mount Reaumur and Cerisy Peak. The summit of the volcanic complex collapsed during at least three major explosive eruptions, about 16,000, 4000, and 300 years ago. These produced a large caldera 10 x 12.5 km in size, now filled with a crater lake, Lake Wisdom. The last eruption was one of the largest in Papua New Guinea's recent history with an estimated air-fall volume in excess of 11 cu km, comparable to the 1991 eruption of Mount Pinatubo, but the Global Volcanism Program gives a much higher estimate of 30 cu km. This cataclysmic event prompted legends of a "Time of Darkness". The most recent (and a smaller) eruption occurred in 1993.
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「Long Island (Papua New Guinea)」の詳細全文を読む
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