| Seismicity research in the subregions of Chinese mainland using strain accumulating and releasing model based on G-R relation |
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| 作者姓名： | 马宏生 刘杰 张国民 张晓东 王辉 王新岭 |
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| 作者单位： | Institute of Geophysics，China Earthquake Administration，Institute of Earthquake Science，China Earthquake Administration Beijing 100036，China，Institute of Earthquake Science，China Earthquake Administration Beijing 100036，China，Institute of Earthquake Science，China Earthquake Administration Beijing 100036，China，Institute of Geophysics，China Earthquake Administration，Institute of Earthquake Science，China Earthquake Administration Beijing 100036，China Beijing 100081，China Institute of Earthquake Science，China Earthquake Administration，Beijing 100036，China，Beijing 100081，China Institute of Earthquake Science，China Earthquake Administration，Beijing 100036，China |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，Social Commonweal Research Project of the Ministry of Science and Technology，Institute of Geophysics |
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| 摘 要： | Introduction Earthquake activity analysis in different sub-regions in Chinese mainland shows that the dis- tribution of strong earthquakes exhibits the different spatial patterns in different periods. Seismic activity in the same earthquake area or seismic belt is self-similar to some extent, and the charac- teristic in time is some ″periodicity-like″. It shows that the frequency and intensity are quite dif- ferent in different periods (SHI et al, 1997). For a seismic region, strain is one…
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| 收稿时间： | 17 May 2004 |
| 修稿时间： | 6 December 2004 |
Seismicity research in the subregions of Chinese mainland using strain accumulating and releasing model based on G-R relation |
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| MA Hong-sheng,LIU Jie,ZHANG Guo-min,ZHANG Xiao-dong,WANG Hui,LI Wen-jun.Seismicity research in the subregions of Chinese mainland using strain accumulating and releasing model based on G-R relation[J].Acta Seismologica Sinica(English Edition),2005,18(4):379-391. |
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| Authors: | MA Hong-sheng LIU Jie ZHANG Guo-min ZHANG Xiao-dong WANG Hui LI Wen-jun |
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| Institution: | 1. Institute of Geophysics, China Earthquake Administration, Beijing 100081, China;Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China
2. Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China |
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| Abstract: | According to the deficiency of the strain accumulating and releasing curves and the previous models, the strain-accumulating rate of the strain accumulating and releasing model has been deduced based on the G-R rela tion and the empirical formula between energy release and earthquake magnitude, where the strain-accumulating rate is relative independent of the strain-releasing rate. Five typical areas in Chinese mainland are selected on the basis of the hypothesis on active tectonic block, and small earthquakes from 1970 are imported to calculate the annual strain-accumulating rates considering the completeness of historical seismic data. Having introduced the strain-accumulating rates into the amended model, present strain phases are got. According to the present stages in their own cycles, the future earthquake tendency of each sub-region is discussed. |
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| Keywords: | G-R relation annual average strain-accumulating rate strain accumulating and releasing model present strain phases |
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