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Zhang Zhizhong,Pan Hua,Yan Jiaquan,You Huichuan
Author NameAffiliation
Zhang Zhizhong Institute of Geophysics,China Earthquake Administration,Beijing 100081,China 
Pan Hua Institute of Geophysics,China Earthquake Administration,Beijing 100081,China 
Yan Jiaquan Institute of Geophysics,China Earthquake Administration,Beijing 100081,China 
You Huichuan Institute of Geophysics,China Earthquake Administration,Beijing 100081,China 
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Effect of Seismicity in the Taiwan Straits on the Southeast Coastal Area of the Chinese Mainland
Zhang Zhizhong,Pan Hua,Yan Jiaquan,You Huichuan
Abstract:
Based on the available and supplementary survey data,it analyzes the effect of seismicity in Taiwan and the Taiwan Straits on the southeastern coastal area of the Chinese mainland and discusses its roles in seismic hazard prevention and textual research of historical earthquakes. The results show that the frequency of strong earthquake in Taiwan area is high,with a time interval ranging from several to dozens of years,but the maximum influence intensity of seismicity from there to the coastal areas of the Chinese mainland is only VI degree; while the maximum influence intensity of the seismicity along the littoral fault zone located on the west of the straits reaches VIII ~ IX degree because of the shorter distance to the Chinese mainland,though the frequency of strong earthquakes is lower than that of the Taiwan area. Strategies for protecting against seismic hazards in the southeastern coastal area of China are proposed. Besides focusing on the effect of strong earthquakes of the littoral fault zone,attention also has to be paid to the low-cycle fatigue failure of engineering structures induced by the earthquakes in Taiwan and the stir effect on society induced by earthquake phobia. It is concluded that it would be more accurate and proper to take the May 19,1517 earthquake recorded in the Chinese mainland area as the influence of a strong earthquake in the Taiwan area.
Key words:  Taiwan  Taiwan Straits  Southeastern coastal area of China  Seismicity  Earthquake hazard prevention  Historical earthquake