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地震

地震 ›› 2003, Vol. 23 ›› Issue (3): 51-56.

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基于断层相互作用理论的强震成组孕育发生初步研究

陈化然1, 李轶群1, 马宏生2, 王建国1   

  1. 1.天津市地震局, 天津 300201;
    2.中国地震局分析预报中心, 北京 100036
  • 收稿日期:2002-06-09 修回日期:2002-10-29 出版日期:2003-07-31 发布日期:2021-12-21
  • 作者简介:陈化然(1966-), 男, 天津蓟县人, 副研究员, 1999 年在读博士生, 主要从事地震预报及电磁学等研究。
  • 基金资助:
    “ 十五” 国家科技攻关项目(2001BA601B01020103); 天津市科委资助项目(013013211)

Preliminary study on strong earthquake occurred in groups based on the theory of fault interaction

CHEN Hua-ran1, LI Yi-qun1, MA Hong-sheng2, WANG Jiang-guo1   

  1. 1. Seismologi cal Bureau of Tianjin Municipality, Tianjin 300201, China;
    2. Center for Analysi s and Predi ction, CSB, Beijing 100036, China
  • Received:2002-06-09 Revised:2002-10-29 Online:2003-07-31 Published:2021-12-21

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摘要： 应用应力触发理论原理, 基于断层相互作用理论, 研究了川滇地区6 级以上地震的库仑破裂应力变化。初步结果表明, 后续强震大多发生在前一地震所触发的应力增长区, 这证明了强震之间是相互作用、相互影响的。即强震是成组孕育、成组发生的, 这对强震的地点预测有一定实际意义。

关键词: 应力触发, 库仑破裂应力, 地震成组活动

Abstract: According to the principle of earthquake stress triggering theory, based on the principle of fault interaction, the authors studied Coulomb failure stress change of earthquakes with magnitude above 6 in the Southeast China area.The preliminary result indicates that subsequent strong earthquakes mostly occurred in the tress increasing area caused by the previous earthquakes.It proves the strong earthquakes are interactive, that is to say, strong earthquakes are prepared and occurred in groups.It might be of practical significance in the prediction of earthquake risk areas.

Key words: Earthquake stress triggering, Coulomb failure stress, Seismicity in groups

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