中、强震前应力场动态演变特征综合分析

Abstract

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

CLC Number:

ZHOU Cui-ying, CHEN Hong, WANG Hong-wei, GUO Rui-zhi, WANG Mei, ZHENG Jian-chang. Comprehensive analysis of dynamic evolution characteristics of stress field before moderate and strong earthquakes[J]. EARTHQUAKE, 2000, 20(2): 27-36.

References

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

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