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|magnitude = 6.0 Ms 〔 |intensity = VIII (''Severe'') 〔 |depth = 〔 |location = 〔 |type = Dip-slip |countries affected = Yemen |casualties = 2,800 〔 }} The 1982 North Yemen earthquake hit near the city of Dhamar, North Yemen (now part of Yemen) on December 13. Measuring 6.0 on the surface wave magnitude scale, with a maximum perceived intensity of VIII (''Severe'') on the Mercalli intensity scale, as many as 2,800 people were killed and another 1,500 injured. The shock occurred within several hundred kilometers of a plate boundary in a geologically complex region that includes active volcanoes and seafloor spreading ridges. Yemen has a history of destructive earthquakes, though this was the first instrumentally recorded event to be detected on global seismograph networks. ==Tectonic setting== The southwestern portion of the Arabian Plate lies adjacent to the Afar Triple Junction (an area of spreading ridges) near the Red Sea. The triple junction marks the intersecting point of the Arabian, African, and Somali plates. Spreading initiated around 5 mya and persists at 6–7.5 mm per year in the southern Red Sea and ~10 mm per year in the eastern Gulf of Aden. Earthquake activity is normally focused at the undersea ridges, but infrequent small to moderate events occur on land in the interior of the Arabian plate within of the centerline of the Red Sea in Yemen, as well as farther to the northwest in the 'Asir Region of Saudi Arabia. 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「1982 North Yemen earthquake」の詳細全文を読む スポンサード リンク
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