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地震 ›› 2003, Vol. 23 ›› Issue (4): 1-9.

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强震中短期阶段断层活动时空演化特征的讨论

陆明勇1, 牛安福2, 周峥嵘3   

  1. 1.中国地震局综合观测中心, 北京 100039;
    2.中国地震局分析预报中心, 北京 100036;
    3.福建省地震局, 福建福州 350003
  • 收稿日期:2002-12-02 修回日期:2003-01-17 出版日期:2003-10-31 发布日期:2021-12-21
  • 作者简介:陆明勇(1965-), 男, 四川江油市人, 高级工程师, 1994 年获硕士学位, 主要从事地震活动性、地球动力学、地形变和地震预报等研究
  • 基金资助:
    “ 十五” 国家科技攻关项目“ 强地震短期预测方法研究”(01-01-03)

Discussion on spatio-temporal evolutionary characteristics of faulting activity in the middle-short period of strong earthquake

LU Ming-yong1, NIU An-fu2, ZHOU Zheng-rong3   

  1. 1. Comprehensive Observation Center, CSB Beijing 100039, China;
    2. Center for Analysis and Prediction, CSB, Beijing 100036, China;
    3. Seismological Bureau of Fujian Province, Fuzhou 350003, China
  • Received:2002-12-02 Revised:2003-01-17 Online:2003-10-31 Published:2021-12-21

摘要: 断层的不稳定滑动(粘滑)被作为地震的一种机制提出后, 已普遍被人们接受, 文中对该机制所表现出来的断层异常活动的研究成果进行了分析和简述。给出了强震中短期阶段断层不稳定滑动过程中断层异常活动时空特征, 并从地球动力学的观点, 提出了明确的强震中短期阶段断层异常活动时空演化特征。

关键词: 强震, 中短期阶段, 断层活动, 时空演化特征, 地球动力学

Abstract: Af ter the unstable sliding (stick-slip)of fault w as put fo rw ard as a mechanism of earthquakes, i t has been universally accepted.In this paper, the research results of the mechanism of earthquakes show the anomaly activity of fault are analyzed and briefly described.The spat io-temporal characteristics of anomaly activi ty of fault is given on the unstable sliding of fault in the middle-sho rt period of strong earthquakes, and the clear spatio-temporal evolutionary characteristics of anomaly activity of fault is raised in the middle-sho rt period of strong earthquakes f rom the view point of geodynamics.

Key words: Strong earthquake, Middle-sho rt period, Activity of fault, Spatio-tempo ral evolutionary characteristics, Geody namics

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