A Ms 6.1 earthquake took place in the district nearby the city of Datong,Shanxi Province,in North China in October 1989.As this earthquake is the strongest one in North China since the Ms7.8 Tangshan earthquake in July 1976,this earthquake has drawn much attention.
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陈荣华.中国华北地震活动性研究与近期地震危险性[J].地震工程学报,1993,15(3):105-110. Chen Ronghua. THE STUDY ON SEISMICITY AND THE ESTIMATE OF THE EARTHQUAKE RISK RECENTLY IN NORTH CHINA[J]. China Earthquake Engineering Journal,1993,15(3):105-110.