| Analysis on Depth Distribution and Precursor Mechanism of Small and Moderate Earthquakes |
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| 作者姓名： | Wang Jian |
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| 作者单位： | Wang JianInstitute of Geophysics，China Seismological Bureau，Beijing 100081，China |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＲｅｓｅａｒｃｈｏｎｅａｒｔｈｑｕａｋｅｆｏｃｕｓｄｅｐｔｈｄｉｓｔｒｉｂｕｔｉｏｎａｎｄｉｔｓｐｈｙｓｉｃａｌｂａｃｋｇｒｏｕｎｄｉｓｏｎｅｏｆｍｏｓｔａｔ ｔｅｎｔｉｖｅｐｒｏｂｌｅｍｓ.Ｐｒｏｆ.ＦｕＺｈｅｎｇｘｉａｎｇ (1 996)ｒｅｓｅａｒｃｈｅｄｔｈｅｒｅｌａｔｉｏｎｓｂｅｔｗｅｅｎｆｏｃｕｓｄｅｐｔｈｄｉｓｔｒｉｂｕ ｔｉｏｎｏｆａｆｔｅｒｓｈｏｃｋｓ ,ｃｒｕｓｔａｌｖｅｌｏｃｉｔｙｌａｙｅｒｓａｎｄｓｕｒｆａｃｅｔｈｅｒｍａｌｆｌｏｗ .Ｒｅｓｅａｒｃｈｏｎｆｏｃｕ…
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Analysis on Depth Distribution and Precursor Mechanism of Small and Moderate Earthquakes |
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| Wang Jian.Analysis on Depth Distribution and Precursor Mechanism of Small and Moderate Earthquakes[J].Earthquake Research in China,2001,15(4):406-411. |
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| Authors: | Wang Jian |
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| Institution: | Institute of Geophysics, China Seismological Bureau, Beijing 100081, China |
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| Abstract: | In this paper, the focus depth distribution of earthquakes with each magnitude has been ana lyzed. Statistic data show that the lower magnitude is, the wider focus depth distributes. With larger magnitude, the focus tends to be concentrated in upper or middle crustal layers. We an alyzed the cause of focus depth distribution and explained the precursor mechanism of small and moderate earthquakes with occurring condition and characteristics of strong earthquakes.The results of this paper may be applied to determine risk sites of strong earthquakes. |
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| Keywords: | Seismicity Depth distribution Precursor Long- and medium-term earthquake prediction |
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