| Clustering Analysis of Spatial Distribution of Seismicity in the Yellow Sea and Bohai Sea |
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| 作者姓名： | Zhao Genmo Diao Guiling and Yang Gangsheng Seismological Bureau of Tianjin Municipality Tianjin China |
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| 作者单位： | Zhao Genmo，Diao Guiling，and Yang Gangsheng Seismological Bureau of Tianjin Municipality，Tianjin 300201，China |
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| 基金项目： | This project was sponsored by the Joint Earthquake Science Foundation of China (94139) |
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| 摘 要： | According to tie records of seismic station networks of China's continent and Korea Peninsula and the historical data,the complete seismicity pattern was obtained for the first time.The seismic zoning was conducted by means of the cluster analysis method.The map's spatial distribution of seismicity from 1960 to 1994 shows that there are three strong seismic zones:the first one strikes in the NE direction,from the Jiangsu plain in China to the central Korean Peninsula; the second strikes in the NW direction,from the Bohai Sea,China to the southern Korean Peninsula; the third strikes in the NW direction,from the western Liaoning Province to Pyongyang.Most of earthquakes are located along these three zones,the seismic intensity is lower than that in the mainland,and exhibited the feature of fractured crust of a marginal sea basin.
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Clustering Analysis of Spatial Distribution of Seismicity in the Yellow Sea and Bohai Sea |
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| Zhao Genmo,Diao Guiling,and Yang Gangsheng Seismological Bureau of Tianjin Municipality,Tianjin ,China.Clustering Analysis of Spatial Distribution of Seismicity in the Yellow Sea and Bohai Sea[J].Earthquake Research in China,1997(4). |
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| Authors: | Zhao Genmo Diao Guiling and Yang Gangsheng Seismological Bureau of Tianjin Municipality Tianjin China |
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| Institution: | Zhao Genmo,Diao Guiling,and Yang Gangsheng Seismological Bureau of Tianjin Municipality,Tianjin 300201,China |
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| Abstract: | According to tie records of seismic station networks of China's continent and Korea Peninsula and the historical data,the complete seismicity pattern was obtained for the first time.The seismic zoning was conducted by means of the cluster analysis method.The map's spatial distribution of seismicity from 1960 to 1994 shows that there are three strong seismic zones:the first one strikes in the NE direction,from the Jiangsu plain in China to the central Korean Peninsula; the second strikes in the NW direction,from the Bohai Sea,China to the southern Korean Peninsula; the third strikes in the NW direction,from the western Liaoning Province to Pyongyang.Most of earthquakes are located along these three zones,the seismic intensity is lower than that in the mainland,and exhibited the feature of fractured crust of a marginal sea basin. |
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| Keywords: | Yellow Sea earthquakes clustering analysis |
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