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地震 ›› 2009, Vol. 29 ›› Issue (4): 1-13.

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长江三峡工程库首区胡家坪MS4.1水库诱发地震研究

车用太1, 陈俊华2, 张莉芬2, 鱼金子1, 刘成龙1, 张卫华2   

  1. 1.中国地震局地质研究所, 北京 100029;
    2.湖北省地震局, 武汉 430071
  • 收稿日期:2009-02-16 修回日期:2009-03-09 出版日期:2009-10-31 发布日期:2021-10-15
  • 作者简介:车用太(1942-), 男, 朝鲜族, 研究员, 主要从事地下流体监测预报等研究

Study of the Reservoir-induced Hujiaping MS4.1 Earthquake in the Three Gorges Dam Area

CHE Yong-tai1, CHEN Jun-hua2, ZHANG Li-fen2, YU Jin-zi1, LIU Cheng-long1, ZHANG Wei-hua2   

  1. 1. Institute of Geology, CEA , Beijing 100029, China;
    2. Earthquake Administration of Hubei Province, Wuhan 430071, China
  • Received:2009-02-16 Revised:2009-03-09 Online:2009-10-31 Published:2021-10-15

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摘要： 本文在系统收集有关资料并对地震现场进行考察的基础上, 分析了2008年11月22日发生在秭归县归州镇香溪村胡家坪MS4.1级地震及其发生的地质-水文地质与地震活动背景条件, 介绍了地震灾害。 并进一步讨论了相关的地震前兆异常、 地震成因等科学问题, 认为该地震是在水库水体荷载与库水下渗的共同作用下沿仙女山断裂发生的构造型水库诱发地震, 并认为震前有一定的前兆异常, 这个地震的发生除了水库蓄水作用之外, 可能还与汶川地震对该区应力场的影响有关。

关键词: 长江三峡工程, 仙女山断裂, 水库诱发地震, 胡家坪MS4.1地震

Abstract: On the base of data collection and on-the-spot investigation,this paper studies some characteristics of the Hujiaping MS4.1 earthquake on 22 November, 2008 in Guizhou township, Zigui county, Hubei province, and the geology-hydrogeology condition and earthquake active background in the area. The earthquake disaster are investigated and analysed. Some scientific problems on earthquake precursors and causes of the earthquake are discussed. In our opinion, the Hujiaping MS4.1 earthquake is a reservoir-induced earthquake belonging to tectonic type,induced by reservoir water-loading and water infiltration along the Xiannvshan fault,and there are some indications that the cause of earthquake possibly relates to the 2008 Wenchuan earthquake influence on the stress field of this region.

Key words: The Three Gorges Dam, Xiannvshan fault, Reservoir-induced earthquake, Hujiaping MS4.1 earthquake

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