2016年3月12日盐湖4.4级地震震源深度的测定  

Determination of Focal Depth of Salt Lake M4.4 Earthquake on March 12,2016

作　　者：刘林飞[1,2] 孟小琴[1,2] 王卓君[1,2] 梁向军 LIU Lin-fei;MENG Xiao-qin;WANG Zhuo-jun;LIANG Xiang-jun(Shanxi Earthquake Agency, Taiyuan, Shanxi 030021, China;National Continental Rift Valley Dynamics Observatory of Taiyuan, Taiyuan, Shanxi 030025, China)

机构地区：[1]山西省地震局,山西太原030021 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2020年第2期6-9,14,共5页Earthquake Research in Shanxi

基　　金：山西省地震局科研项目(SBK-1832、SBK-2011)。

摘　　要：应用sPL震相测定法、CAP方法及PTD方法重新测定2016年3月12日盐湖M4.4地震的震源深度。测定结果显示,这3种方法测定的震源深度结果基本一致,在10~12 km之间。由此表明,此次地震是属于上地壳的地震,震源较浅是造成此次地震破坏程度较大的原因之一。The focal depth of the salt lake M4.4 earthquake on march 12,2016 was re-determined by using the sPL seismic phase determination method,CAP method and PTD method.The results show that the focal depth measured by these three methods are basically the same,between 10~12 km.This shows that the earthquake belongs to the upper crust,and the shallow focal point is one of the reasons for the greater damage of the earthquake.

关 键 词：震源深度 sPL震相 CAP波形反演 PTD方法 

分 类 号：P315.33[天文地球—地震学]