A stratovolcano in the eastern part of Java, Indonesia. It is 1,731m above sea level. There is a crater lake at the summit. When this volcano erupts, the water from the crater lake erupts and flows down the foot of the mountain as lahar, causing disasters. In the 1919 eruption, 5,000 people were killed as a result. As a result, Dutch engineers dug a tunnel into the crater in an effort to lower the water level of the crater lake, and even today the tunnel keeps the water level low to prevent lahars from occurring due to explosions. [Shimozuru Daisuke] Source: Heibonsha World Encyclopedia, 2nd Edition Information |
インドネシアのジャワ島東部にある成層火山。標高1731m。山頂に火口湖がある。この火山では爆発により火口湖の水が噴出してラハールとして麓に流下して災害を起こす。1919年の噴火ではこのため5000人の命が奪われた。そこで,オランダ人技術者により火口にトンネルを掘り,火口湖の水位を下げる努力がされ,現在もトンネルによって水位をつねに低くして爆発によるラハールの発生を防いでいる。【下鶴 大輔】
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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