| The inversion of 3-D crustal structure and hypocenter location in the Beijing-Tianjin-Tangshan-Zhangjiakou area by genetic algorithm |
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| 作者姓名： | 万永革 刘瑞丰 李鸿吉 |
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| 作者单位： | YONG GE WAN 1) RUI FENG LIU 2) HONG JI LI 2) 1) College of Disaster Prevention Technics，State Seismological Bureau，Yanjiao，East of Beijing 101601，China 2) Institute of Geophysics，State Seismological Bureau，Beijing 100081 |
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| 摘 要： | Ｔｈｅｉｎｖｅｒｓｉｏｎｏｆ３┐ＤｃｒｕｓｔａｌｓｔｒｕｃｔｕｒｅａｎｄｈｙｐｏｃｅｎｔｅｒｌｏｃａｔｉｏｎｉｎｔｈｅＢｅｉｊｉｎｇ┐Ｔｉａｎｊｉｎ┐Ｔａｎｇｓｈａｎ┐Ｚｈａｎｇｊｉａｋｏｕａｒｅａｂｙｇｅｎｅｔｉｃａｌｇｏ┐ｒｉｔｈｍＹＯＮＧ－Ｇ...
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| 收稿时间： | 11 October 1996 |
| 修稿时间： | 15 April 1997 |
The inversion of 3-D crustal structure and hypocenter location in the Beijing-Tianjin-Tangshan-Zhangjiakou area by genetic algorithm |
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| Yong-Ge Wan, Rui-Feng Liu and Hong-Ji Li.The inversion of 3-D crustal structure and hypocenter location in the Beijing-Tianjin-Tangshan-Zhangjiakou area by genetic algorithm[J].Acta Seismologica Sinica(English Edition),1997,10(6):769-781. |
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| Authors: | Yong-Ge Wan Rui-Feng Liu and Hong-Ji Li |
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| Institution: | (1) College of Disaster Prevention Technics, State Seismological Bureau, 101601 Yanjiao, East of Beijing, China;(2) Institute of Geophysics, State Seismological Bureau, 100081 Beijing, China |
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| Abstract: | This paper discusses the inversion of velocity structure and hypocenters location in the Beijing Tianjin Tangshan Zhangjiakou area by genetic algorithm. The hypocenters location of selected earthquakes and crustal structure of this area are obtained using the travel time data of local earthquakes acquired by the Telemetered Seismic Network of Northern China. The mean and standard residuals of hypocenter location acquired by this method are much less than those provided by the report of respective earthquakes. The crustal structure of the first and the second layers obtained interpret the outline of the plain and mountain area in the region successfully and the crustal structure of the third layer nearly coincides with the Moho discontinuity obtained by artificial seismic sounding. These show the genetic algorithm is effective to the inversion of hypocenter location and three dimensional velocity structure. |
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| Keywords: | genetic algorithm hypocenter crustal structure inversion non linear |
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