强震中短期阶段断层活动时空演化特征的讨论  

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

作　　者：陆明勇[1] 牛安福[2] 周峥嵘[3] 

机构地区：[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

出　　处：《地震》2003年第4期1-9,共9页Earthquake

基　　金：十五"国家科技攻关项目"强地震短期预测方法研究"(01 01 03)

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。After the unstable sliding (stick-slip) of fault was put forward as a mechanism of earthquakes, it 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 spatio-temporal characteristics of anomaly activity of fault is given on the unstable sliding of fault in the middle-short period of strong earthquakes, and the clear spatio-temporal evolutionary characteristics of anomaly activity of fault is raised in the middle-short period of strong earthquakes from the viewpoint of geodynamics.

关 键 词：强震 断层活动 时空演化 地球动力学 强震预报 

分 类 号：P315.7[天文地球—地震学]