2009年姚安地震断层面参数的确定  

Seismic Fault Plane Parameters Estimating of 2009 Yao'an Earthquake

作　　者：潘睿[1] 盛书中[1] 万永革[1] 

机构地区：[1]防灾科技学院,河北三河065201

出　　处：《华北地震科学》2015年第2期63-68,共6页North China Earthquake Sciences

基　　金：中国地震局教师基金项目(20140102;20150104)

摘　　要：我们将根据余震分布反演地震断层面参数的方法应用于2009年7月9日云南姚安MS6.0地震,研究结果表明:本次地震的发震断层面走向为296.6°,倾角为86.6°,这一结果与前人研究结果较为一致;我们采用震后不同时间内的余震资料,对断层面参数进行反演,震后2天的余震资料反演所得结果和最终结果较为接近,反映该方法能快速地确定该次地震发震断层参数,为今后其它地震发震断层面参数的快速获取提供新的思路。The method of inversing the seismic fault plane parameter according to the distribution of aftershocks was applied to the MS6.0Yao＇an earthquake on July 9,2009.The results show that the strike and dip angle of the seismic fault plane is 296.6°and 86.6°respectively which are consistent with previous studies.The fault plane parameters were also inversed on basis of aftershocks of different time periods.It is found that the final results are very close to the results based on aftershocks occurred 2days after the mainshock.Which indicate that using this method,seismic fault plane parameters can be determined rapidly.So it provides a new idea for obtaining seismic fault plane parameters as soon as possible in the future.

关 键 词：姚安地震 余震丛集性 反演 地震断层 

分 类 号：P315.332[天文地球—地震学]