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1792 Unzen earthquake and tsunami : ウィキペディア英語版 | 1792 Unzen earthquake and tsunami
1792 Unzen earthquake and tsunami resulted from the volcanic activities of Mount Unzen (in the Shimabara Peninsula of Nagasaki Prefecture, Japan) on 21 May. This caused the collapse of the southern flank of the Mayuyama dome in front of Mount Unzen, resulting in a tremendous tsunami, killing 15,000 people altogether. It was also called, ''Shimabara erupted, Higo affected'' (島原大変肥後迷惑), (Shimabara means the central mountain of the Shimabara Peninsula) since many people were killed by this tsunami in Higo (Kumamoto Prefecture, situated 20 km away across the Ariake Sea). ==Volcanic Activities== Towards the end of 1791, a series of earthquakes occurred on the western flank of Mount Unzen which gradually moved towards Fugen-dake (one of the Mount Unzen's peaks). In February 1792, Fugen-dake started to erupt, triggering a lava flow which continued for two months. Meanwhile, the earthquakes continued, shifting nearer to the city of Shimabara. On the night of 21 May, two large earthquakes were followed by a collapse of the eastern flank of Mount Unzen's Mayuyama dome, causing a landslide which swept through the city of Shimabara and into Ariake Bay, triggering a great tsunami.
File:Unzen pyroclastic and lahar deposits.jpg|Mount Unzen (center) and Mayuyama (right) showing the destruction, recent photo File:Shimabara Mayuyama.jpg|Mayuyama of Shimabara Peninsula, from the sea of Shimabara City
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「1792 Unzen earthquake and tsunami」の詳細全文を読む
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