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重庆羊头铺水库诱发地震分析研究

Research on Earthquake Induced by Yangtoupu Reservoir in Chongqing

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【作者】 吴建超张丽芬蔡永建缪卫东雷东宁余松乔岳强

【Author】 WU Jian-chao1,2,ZHANG Li-fen1,CAI Yong-jian1,2,MIAO Wei-dong1,2, LEI Dong-ning1,2,YU Song1,2,QIAO Yue-qiang1,2 (1.Key Laboratory of Earthquake Geodesy,Institute of Seismology,CEA,Wuhan 430071,Hubei,China) (2.Wuhan Institute of Earthquake Engineering,Wuhan 430071,Hubei,China)

【机构】 中国地震局地震研究所(地震大地测量重点实验室)武汉地震工程研究院

【摘要】 通过实地调查并结合前人研究成果,综合分析了羊头铺水库区的地质构造背景、地震活动性及水文地质条件等。在此基础上,应用构造类比法和概率预测法对羊头铺水库诱发地震的可能性进行了分析。结果表明,库区南段有发生水库诱发地震的可能性,发生MS1.0~3.0地震的概率约为0.19,诱发最大地震强度为MS3.0左右。而库区北段有发生MS1.0地震的可能性,发震概率仅为0.03。

【Abstract】 On the basis of field investigation and previous research,we comprehensively analyzed the tectonic background,seismic activity and hydrogeology condition of the Yangtoupu reservoir.Then we discussed the probability of the earthquake induced by Yangtoupu reservoir using structural-analogy method and probabilistic statistic method.The results show that there is possibility for the southern region of the Yangtoupu reservoir to induce earthquake and the probability of reservoir induced earthquake from M1.0 to M3.0 is about 0.19.The biggest magnitude of the induced earthquake is about M3.0.The northern region of it has little possibility to induce M1.0 earthquake and the probability is only 0.03.

【基金】 中国地震局地震研究所基金(IS201056088)资助
  • 【文献出处】 地震研究 ,Journal of Seismological Research , 编辑部邮箱 ,2012年03期
  • 【分类号】P315
  • 【被引频次】1
  • 【下载频次】72
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