武烈, 贾宝卿, 许银贵, 冀贵成. 山西境内七次强震及有关几个问题的讨论[J]. 华北地震科学, 1987, 5(2): 13-23.
引用本文: 武烈, 贾宝卿, 许银贵, 冀贵成. 山西境内七次强震及有关几个问题的讨论[J]. 华北地震科学, 1987, 5(2): 13-23.
Wu Lie, Jia Baoqing, Xu Yingui, Ji Guieheng. DISCUSSION ON STRONG EARTHQUAKES IN SHANXI PROVINCE AND SOME PROBLEMS CONCERNED[J]. North China Earthquake Sciences, 1987, 5(2): 13-23.
Citation: Wu Lie, Jia Baoqing, Xu Yingui, Ji Guieheng. DISCUSSION ON STRONG EARTHQUAKES IN SHANXI PROVINCE AND SOME PROBLEMS CONCERNED[J]. North China Earthquake Sciences, 1987, 5(2): 13-23.

山西境内七次强震及有关几个问题的讨论

DISCUSSION ON STRONG EARTHQUAKES IN SHANXI PROVINCE AND SOME PROBLEMS CONCERNED

  • 摘要: 有记载以来,山西境内发生了M≥6 3/4级的强震七次。笔者在深入研究历史地震资料的基础上,对每次强震的极震区、破坏区的长轴走向及其范围,震前几十年内较大区域内地表活动图象以及余震的空间分布进行了分折,得出每次强震的发震构造走向。由于七次强震均分布于新生代以来形成的断陷盆地之中,而盆地又广为第四纪黄土覆盖,所以通过卫片解释了盆地内隐伏发育的断裂,从而展示了应力集中的闭锁结构条件。最后讨论了这些强震之间的一些共性问题。

     

    Abstract: 7 Strong earthquakes of M≥6 3/4 Have occurred in Shanxi Province since there was historical record. Based on the study of historical seismic data,the authors have analyzed the long axis strike of the most destructive and destructive areas of the 7 strong earthquakes, seismic activity patterns in larger areas in several decades prior to the earthquakes and the spatial distribution of after shocks and have obtained the seismotectonic strike of each strong earthquake. Since the 7 strong earthquakes were all distributed in fault basins which were formed since Cenozoic Era and the basins were widely covered by loess of Quaternary period, the hidden developed faults in basins are interpreted by landsat photos and hence the closed structural conditions for stress concentration are shown. Finally, some common problems of these strong earthquakes are discussed,

     

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