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|magnitude = 7.3 ML (largest) | location = |countries affected = Taiwan |tsunami = minor |casualties = 85 dead }} The 1951 East Rift Valley earthquakes () were a series of 735 earthquakes which struck eastern Taiwan from October 22, 1951 to December 5, 1951, four of which registered over 7 on the Richter Scale, the largest of those being two magnitude 7.3 quakes on October 22 and November 25. Altogether the quakes killed 85 people. ==Technical data== The East Rift Valley () is an area of rugged terrain formed by the interaction of the Philippine Sea and Eurasian tectonic plates in eastern Taiwan.〔(【引用サイトリンク】publisher=East Rift Valley National Scenic Area Administration )〕 Most of the area is sparsely populated by Taiwanese aborigines, but there are larger populations in the cities of Hualian and Taidong. The deadliest earthquake in the series struck at 05:34 on October 22, 1951, with an epicentre at 23.9°N 121.7°E, a few kilometres southwest of Hualian City, with a magnitude of 7.3, and was felt throughout Taiwan as well as on Penghu and Jinmen. The second quake to cause significant casualties hit at 02:50 on November 25 of the same year, again with a magnitude of 7.3, this time centred under the town of Yuli, Hualian. 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「1951 East Rift Valley earthquakes」の詳細全文を読む スポンサード リンク
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