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地震 ›› 2013, Vol. 33 ›› Issue (4): 1-10.

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断层的大地震复发概率研究

朱元清1, 解朝娣2, 宋秀青1, 秦浩文1   

  1. 1.上海市地震局, 上海 200062;
    2.云南大学地球物理系, 云南 昆明 650091
  • 收稿日期:2013-01-11 修回日期:2013-05-02 发布日期:2020-09-27
  • 作者简介:朱元清(1953-), 男, 江苏苏州人, 研究员, 主要从事地球动力学和地球内部物理等研究。
  • 基金资助:
    国家自然科学基金(41104036)资助

A Study of the Recurrence Probability of Strong Earthquake on Faults in Mainland China

ZHU Yuan-qing1, XIE Chao-di2, SONG Xiu-qing1, QIN Hao-wen1   

  1. 1. Earthquake Administration of Shanghai, Shanghai 200062, China;
    2. Department of Geophysics, Yunnan University, Kunming 650091, China
  • Received:2013-01-11 Revised:2013-05-02 Published:2020-09-27

摘要: 本文以布朗过程时间物理模型为基础, 以地震孕育过程为研究主线, 计算了中国大陆地区主要活动断层在不同预测时段内的强震复发概率, 进而对断层的地震危险性进行了研究。 结果表明: 鲜水河断裂带、 阿尔金断裂带、 东昆仑断裂带、 小江断裂带这4条断层的强震复发概率值显著高于其他断裂带, 反映了这些断层所处地区的应力积累水平高于其他地区, 应属于未来可能复发强震的危险地带。

关键词: 地震危险性, 布朗过程时间模型, 条件概率, 断层, 地震复发

Abstract: Based on the physical model of Brownian passage time and earthquake preparation process, the probabilities of strong earthquake recurrence have been calculated for major active faults in mainland China for different time spans, and the seismic risk on each fault is studied. Results show that the earthquake probabilities on the Xianshuihe fault, Altyn Tagh fault, East Kunlun fault and Xiaojiang fault are obviously bigger than other faults in the mainland, these faults are experiencing high-level states of stress accumulation, and may have high seismic risks of strong earthquake recurrences in the future.

Key words: Brownian passage time model, Conditional probability, Earthquake recurrence, Mainland China

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