囊谦Ms5.2级地震震源机制解研究  

RESEARCH ON FOCAL MECHANISM OF NANGQIAN Ms5.2 EARTHQUAKE

作　　者：马辉青[1] 李玮杰[1] 杨玉霞 刘兴盛[1] 

机构地区：[1]青海省地震局,青海西宁810001 [2]青海省门源县地震局,青海门源810300

出　　处：《高原地震》2014年第4期19-22,共4页Plateau Earthquake Research

基　　金：青海省地震科学基金(2012A04)

摘　　要：利用青海省地震台网玉树、曲玛莱、杂多、昌都等地震台以及玉树7.1级地震后临时布置的台站产出的数字化观测资料,采用Pg、Sg最大振幅比的方法,计算了2011年6月26日青海囊谦Ms 5.2级地震震源机制解,结果显示该区地震序列以走滑地震为主,仅有一个余震的震源机制解为逆冲类型。Using digital observation data recorded by seismic stations such as Yushu, Qumalai, Changdu and temporary seismic network stations after the Yushu Ms 7. 1 earthquake, the focal mechanisms of the Nangqian Ms5.2 earthquake on June 26th ,2011 and some large aftershocks are calculated by the maximum amplitude ratio of Pg and Sg wave, it is found that the earthquake sequence are mainly strike - slip type, while there is only one thrust event.

关 键 词：囊谦地震 最大振幅比 震源机制 

分 类 号：P315.33[天文地球—地震学]