A stratovolcano with a basal diameter of about 40 km, occupying most of the Sanggar Peninsula on the Indonesian island of Sumbawa. It has an elevation of 2,851 m. At the summit there is a crater with a diameter of about 6 km and a depth of about 600 m. The eruption in 1815 is considered the largest ever recorded. The loud explosions that occurred on April 10-12 were heard up to 1,750 km away, and the volcanic ash caused darkness for three days on Madura Island, 500 km away. The summit, which was 3,900 m high, dropped to 2,851 m, and the crater mentioned above was formed. It is estimated that about 30 km3 of the mountain disappeared, and the volume of the ejecta was 100-150 km3 . Source: Heibonsha World Encyclopedia, 2nd Edition Information |
インドネシア,スンバワ島のサンガル半島の大部分を占めている基底直径約40kmの成層火山。標高2851m。山頂には直径約6km,深さ約600mの火口がある。1815年の噴火は歴史に記録された世界最大の噴火とされている。4月10~12日の大爆発音は1750kmまで聞こえ,500km離れたマドゥラ島ではその火山灰のため3日間暗闇が続いた。高さ3900mあった山頂は2851mに減じ,上記火口が生じた。消失した山体は約30km3,噴出物の体積は100~150km3と見積もられている。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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