用CAP方法测定山西地区地震震源深度  

Determination of Focal Depth for Earthquakes in Shanxi by CAP Method

作　　者：张蕙[1,2] 梁向军[1,2] ZHANG Hui;LIANG Xiang-jun(Earthquake Administration of Shanxi Province,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》2019年第2期22-24,41,共4页Earthquake Research in Shanxi

基　　金：山西省地震局科研项目(SBK-1628)和(SBK-1832)

摘　　要：利用山西数字地震台网的波形资料,测定了2009年1月至2017年12月山西地区及周边地区M≥3.0地震的震源深度。结果显示,震源深度的优势范围为6~20km,山西地区的震源深度由北到南逐渐加深。在日常工作中,对于速报地震,尤其是4级以上的地震,建议用CAP方法测定的结果与速报结果综合运用,为速报之后地震应急及危险性判定提供更可靠的震源深度参数。Based on the waveform data of the Shanxi digital seismic network,the focal depth of M≥3.0 earthquakes in Shanxi and its surrounding areas from January 2009 to December 2017 was determined.The results show that the dominant depth ranges from 6 km to 20 km,and the focal depth in Shanxi gradually deepens from north to south.In daily work,it is suggested that the results measured by CAP method are used in combination with the results of earthquake quick-report,especially earthquakes with M≥4.0,so as to provide more reliable focal depth parameters for earthquake emergency response and risk determination after quick-report.

关 键 词：震源深度 山西地区 CAP方法 

分 类 号：P315.3[天文地球—地震学]