山西大同—阳高地震的震源机制及发震模式
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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.
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.
引文
[1]赵新平,刘巍,王秀文,等.1989年10月19日山西大同—阳高6.1级地震[A].中国震例(1989—1991)[C].北京:地震出版社,2000.87-131.
[2]刘巍,王秀文,张淑亮,等.1991年3月26日山西大同—阳高5.8级地震[A].中国震例(1989—1991)[C].北京:地震出版社,2000.332-348.
[3]韦宝珠,王凯,姚振兴.1989年大同—阳高地震震源机制及发震模式研究[J].中国地震,1992,8(1):51-59.
[4]赵里,李志坚,郑斯华.1989年10月大同地震的震源机制[J].地震学报,1992,14(2):251-254.
[5]刘巍,孟雁英,王赵丽.大同盆地现今构造活动及地壳应力场特征[J].山西地震,1995(1):33-39.
[6]刁桂苓,刁利民,宁杰远,等.1989年大同地震的体破裂特征[J].地球物理学报,1993,36(3):360-368.
[7]徐建德.1989年大同—阳高震群破裂方向讨论[J].华北地震科学,1992,10(2):50-57.
[8]李钦祖.华北地壳应力场的基本特征[J].地球物理学报,1980,23(4):377-387.
[9]许忠淮,阎明,赵仲和.由多个小震推断华北地区构造应力场的方向[J].地震学报,1983,5(3):268-279.
[2]刘巍,王秀文,张淑亮,等.1991年3月26日山西大同—阳高5.8级地震[A].中国震例(1989—1991)[C].北京:地震出版社,2000.332-348.
[3]韦宝珠,王凯,姚振兴.1989年大同—阳高地震震源机制及发震模式研究[J].中国地震,1992,8(1):51-59.
[4]赵里,李志坚,郑斯华.1989年10月大同地震的震源机制[J].地震学报,1992,14(2):251-254.
[5]刘巍,孟雁英,王赵丽.大同盆地现今构造活动及地壳应力场特征[J].山西地震,1995(1):33-39.
[6]刁桂苓,刁利民,宁杰远,等.1989年大同地震的体破裂特征[J].地球物理学报,1993,36(3):360-368.
[7]徐建德.1989年大同—阳高震群破裂方向讨论[J].华北地震科学,1992,10(2):50-57.
[8]李钦祖.华北地壳应力场的基本特征[J].地球物理学报,1980,23(4):377-387.
[9]许忠淮,阎明,赵仲和.由多个小震推断华北地区构造应力场的方向[J].地震学报,1983,5(3):268-279.
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