| Maximum entropy spectral characteristics of seismic activity for great earthquakes in China |
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| 引用本文： | 宋治平,梅世蓉,武安绪,薛艳.Maximum entropy spectral characteristics of seismic activity for great earthquakes in China[J].地震学报(英文版),1997,10(1):7-14. |
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| 作者姓名： | 宋治平 梅世蓉 武安绪 薛艳 |
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| 作者单位： | ZHI PINGSONG 1) SHI RONGMEI 2) AN XUNWU 1) XANXUE 2) 1) Institute of Geophysics，State Seismological Bureau，Beijing 100081，China 2) Center for Analysis and Prediction，State Seismological Bureau，Beijing 100036 |
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| 摘 要： | ＭａｘｉｍｕｍｅｎｔｒｏｐｙｓｐｅｃｔｒａｌｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆｓｅｉｓｍｉｃａｃｔｉｖｉｔｙｆｏｒｇｒｅａｔｅａｒｔｈｑｕａｋｅｓｉｎＣｈｉｎａＺＨＩＰＩＮＧＳＯＮＧ１）（宋治平）ＳＨＩＲＯＮＧＭＥＩ２）（梅世蓉）ＡＮＸＵＮＷ...
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| 收稿时间： | 18 April 1995 |
| 修稿时间： | 10 May 1996 |
Maximum entropy spectral characteristics of seismic activity for great earthquakes in China |
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| Zhi-Ping Song, Shi-Rong Mei, An-Xun Wu and Xan Xue.Maximum entropy spectral characteristics of seismic activity for great earthquakes in China[J].Acta Seismologica Sinica(English Edition),1997,10(1):7-14. |
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| Authors: | Zhi-Ping Song Shi-Rong Mei An-Xun Wu and Xan Xue |
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| Institution: | (1) Institute of Geophysics, State Seismological Bureau, 100081 Beijing, China;(2) Center for Analysis and Prediction, State Seismological Bureau, 100036 Beijing, China |
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| Abstract: | The maximum entropy spectral characteristics of seismicity in the seismic enhanced region of 11 great earthquakes is analysed
in this paper to seek the difference of seismic period spectral structure between the normal and the abnormal stage of seismic
activity in this paper. The results show that, during decades or even one hundred years before great earthquakes, only short
periods with 6.5–24.3 years appear, and long ones disappear. Otherwise, long periods with 18.5–38.5 years exist chiefly within
the normal stages. Decades years after great earthquakes, the period spectra of seismicity are generally about several or
ten years. Then the characteristics of great earthquakes is explained physically by applying the strong body seismogenic model,
so a method of studying and predicting great earthquakes is offered. |
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| Keywords: | great earthquake maximum entropy spectrum short period long period strong body seismogenic model |
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