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地震 ›› 2000, Vol. 20 ›› Issue (2): 27-36.

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中、强震前应力场动态演变特征综合分析

周翠英1, 陈虹2, 王红卫1, 郭瑞芝3, 王梅1, 郑建常1   

  1. 1.山东省地震局, 山东 济南 250014;
    2.中国地震局地壳应力研究所,北京 100085;
    3.天津市地震局,天津 300201
  • 收稿日期:1999-06-16 修回日期:1999-08-30 出版日期:2000-04-30 发布日期:2022-09-26
  • 作者简介:周翠英(1952-),女,副研究员,主要从事地震预报、震源机制及应力场研究。
  • 基金资助:
    中国地震局“九五”科研攻关项目(95-04-04-02-03)部分成果

Comprehensive analysis of dynamic evolution characteristics of stress field before moderate and strong earthquakes

ZHOU Cui-ying1, CHEN Hong2, WANG Hong-wei1, GUO Rui-zhi3, WANG Mei1, ZHENG Jian-chang1   

  1. 1. Seismological Bureau of Shandong Province, Jinan 250014, China;
    2. Institute of Crustal Dynamics, CSB, Beijing 100085, China;
    3. Seis mological Bureau of Tian jin 300206, China
  • Received:1999-06-16 Revised:1999-08-30 Online:2000-04-30 Published:2022-09-26

摘要: 用由地震记录P波初至波符号求取的小震综合机制解资料,分析研究了华北地区4次中强地震前震源区及其附近小震应力场的动态变化。结合前人的有关研究成果,综合归纳了中、强地震前震源区及附近应力场的动态演变特征,并尝试给出了小震综合机制解参数预报地震的判据指标。

关键词: 中强地震, 应力场, 演化特征, 华北地区

Abstract: By using the data of com prehensive mechanism solutions of small earthquakes and suing the signs of initial Pwave reco rded by seismic reco rding, the dynamic changes of stress field of small ea rthquakes occurred before four modera te-strong earthquakes in North China have been studied. Combined with some previo us results, we have generalized preliminarily he dynamic evolution characteristics of stress field in the focal region and its adjacent area before m oderate and strong earthquakes, and tried to give out the judg em entindex of earthquake prediction with the comprehensive mechanism solution of small earthquake.

Key words: Moderate and strong earthquakes, Stress field, Evolution characteristics, North China region

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