1992年1月23日南黄海5.3级地震及其前兆异常特征

THE SOUTHERN YELLOW SEA EARTHQUAKE (M_s=5.3) OF JANUARY 23, 1992 AND ITS PRECURSORY FEATURES

摘要: 1992年1月23日南黄海发生5.3级地震,这是自1983年11月7日菏泽5.9级地震以后,山东地区发生的唯一的一次5级以上地震。本文对这一地震进行了总结,对该震的震源机制、余震序列、地震烈度和发震构造作了介绍。研究了这次地震前山东地区出现的各种前兆异常现象及其特征。最后,对地震发生前的预报情况和地震后的对策情况也做了简要介绍。

Abstract: The Southern Yellow Sea earthquake of magnitude 5.3 occurred on January 23,1992 is the only one earthtjuake of M_s>5 after the Heze earthquake (M_s 5.9) of October 7,1983 in Shandong area.This paper summarizes this shock.In the paper, the features of aftershock sequence, focal mechanism solution, intensity distribution and structure of this shock are presented.The precursory phenomenon and it's characters appeared in Shandong area prior to this shock are studied.Finally we have also introduced the prediction process and the countermeasures for this shock.