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|magnitude = 5.9 Mw 〔 |depth = |location = 〔 |countries affected = Afghanistan |casualties = 2,323 dead 〔 818 injured |damage = 8,094 houses destroyed }} The February 1998 Afghanistan earthquake occurred in northern Afghanistan in the Afghanistan-Tajikistan border region.〔(Magnitude 5.9 Afghanistan-Tajikistan Border Region 1998 February 04 14:33:21 UTC ) National Earthquake Information Center〕〔(1998: 4,000 feared dead in Afghan earthquake ) ''BBC News''〕 The epicenter of the earthquake was located at Rostaq in the Takhar Province near Afghan-Tajikistan border.〔 The magnitude of the quake was 5.9 on the moment magnitude scale.〔 Aftershocks continued for the next seven days.〔 The earthquake was also felt at Tashkent and Dushanbe.〔 ==Cause== Afghanistan is situated on a major plate boundary. The location of the country is on the boundary where two tectonic plates, the Iranian Plate and the Eurasian Plate, meet. To the south of Afghanistan, the Indian Plate moves northwards and to the north the Eurasian Plate moves south-eastwards.〔 The collision resulting from the movement of the plates has been under way for 50 million years.〔 Due to this, Afghanistan is vulnerable to earthquakes.〔 Both the Iranian Plate and the Eurasian Plate consists of continental crust, which can neither sink nor be destroyed.〔 As a result, the rocks between the two plates are forced upwards to form mountains.〔 The constant movement of the Iranian Plate results in an increase in pressure.〔 The earthquake on February 4, 1998 was caused by this increase in pressure.〔 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「February 1998 Afghanistan earthquake」の詳細全文を読む スポンサード リンク
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