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一、震情及地震波及范围1981年3月21日上午11点32分,北海道日高地方官署浦河町西南十几公里近海发生7.3级大地震,震中位于北海道东南海岸附近(约在42.3°N,142°E)。遭受此次地震破坏最严重的地方是北海道东部海岸的浦河町,该町最高烈度为6度。整个北海道地区和东北地方北部几乎都感到强烈的摇晃,并且扩展到关东、甲信越、静冈等地方。据北海道官厅调查:截至二十二日上午一时,在北海道地震时造成105人受伤,其中8人伤势严重,100座房屋遭受
1. Earthquake and Seismic Scope The Sept. 11 earthquake occurred on March 21, 1981, at 11:32 am on the offshore coast of Puhe Town, Hokkaido Prefecture. The epicenter was located near the southeast coast of Hokkaido (about 42.3 ° N , 142 ° E). The worst place to suffer the quake was Puka-cho on the eastern coast of Hokkaido, which has a maximum intensity of 6 degrees. Almost all of Hokkaido region and northeastern part of the northern part of the strong feeling of shaking, and extended to Kanto, A letter Vietnam, Shizuoka and other places. According to a survey conducted by Hokkaido Government Office, as of 1 am on the 22nd, 105 people were injured in the Hokkaido earthquake, of which 8 were seriously injured and 100 houses were damaged