山西大同—阳高地震的震源机制及发震模式  

Focal Mechanism and Seismogenic Pattern of Datong-Yanggao,Shanxi,Earthquake

作　　者：仇转[1] 刘巍[1] 

机构地区：[1]山西省地震局,山西太原030021

出　　处：《山西地震》2005年第4期8-17,26,共11页Earthquake Research in Shanxi

摘　　要：根据全国地震台网的记录资料及前人对山西大同—阳高地震的研究结果,通过对大同—阳高地震震源机制及大同遥测地震台网的单(多)台小震综合断层面解的研究,结合当地地质构造条件,推断出大同—阳高地震的震源应力场及前震、主震、最大余震的发震断层。通过对大同—阳高地震中余震随时间分布、烈度等震线分布和构造裂缝的研究,给出了大同—阳高地震中几次主要地震的破裂方向、破裂长度等。Based on data of seismic network countrywide and research results of predecessors to Datong-Yanggao,Shanxi, earthquake, with local geologic tectonic condition, the focal stress field and the seismogenic faults of the foreshocks, main shock and aftershocks of the Datong-Yanggao earthquake are deduced through the study on focal mechanism solution to the Datong-Yanggao earthquake and synthetic fault plane solution ,using small earthquakes of single （multi-） station of the Datong Telemetric Seismic Network. Rupture direction and length etc. of several primary earthquakes of Datong-Yanggao earthquake are gained through the study on time distribution of aftershocks, isoseismic intensity and tectonic fault of Datong-Yanggao earthquake.

关 键 词：震源机制 发震模式 大同-阳高地震 

分 类 号：P315.63[天文地球—地震学]