| MathematicalsimulationofmoderateandstrongearthquakesequenceinZhujiangDeltaanditssurroundingareasinth |
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| 作者姓名： | 孙荀英 黄新辉 原章 |
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| 作者单位： | XUN YING SUN 1)，XIN HUI HUANG 2) and YUAN ZHANG DING 2) 1) Department of Geology，Peking University，Beijing 100871，China 2) Guangdong Seismological Bureau，Guangzhou 510070，China |
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| 摘 要： | ＭａｔｈｅｍａｔｉｃａｌｓｉｍｕｌａｔｉｏｎｏｆｍｏｄｅｒａｔｅａｎｄｓｔｒｏｎｇｅａｒｔｈｑｕａｋｅｓｅｑｕｅｎｃｅｉｎＺｈｕｊｉａｎｇＤｅｌｔａａｎｄｉｔｓｓｕｒｒｏｕｎｄｉｎｇａｒｅａｓｉｎｔｈｉｓｃｅｎｔｕｒｙａｎｄｄｉｓｃｕｓｉｏｎｏｎｓｅ...
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| 收稿时间： | 10 July 1994 |
| 修稿时间： | 7 December 1994 |
Mathematical simulation of moderate and strong earthquake sequence in Zhujiang Delta and its surrounding areas in this century and discussion on seismic risk regions |
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| XUN YING SUN ,XIN HUI HUANG and YUAN ZHANG DING.MathematicalsimulationofmoderateandstrongearthquakesequenceinZhujiangDeltaanditssurroundingareasinth[J].Acta Seismologica Sinica(English Edition),1996,9(1):135-144. |
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| Authors: | XUN YING SUN XIN HUI HUANG and YUAN ZHANG DING |
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| Institution: | (1) Department of Geology, Peking University, 100871 Beijing, China;(2) Guangdong Seismological Bureau, 510070 Guangzhou, China |
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| Abstract: | With the orthogonal design and the finite element methods, the outside stresses acting on the boundary and the inside tectonic stress field before the 1911 Honghai Bay earthquake are obtained. Under these stress fields, the dislocation patterns of the faults are consistent with the observed ones. Using the softening unstabilization model for elastoplastic media to simulate the process of the earthquake occurrence, 5 moderate and strong earthquakes in these areas in this century are simulated. The results show that the moderate or strong earthquake happened only at the sections of the faults whose fault safety degree is zero. According to the present distribution of the fault safety degree, the authors predict the seismic risk zones there. |
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| Keywords: | finite element modelling seismic simulation seismic risk region orthogonal design method fault safety degree |
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