上海徐汇区M_(L)1.9有感地震分析  

Analysis of the M_(L)1.9 earthquake in Xuhui District,Shanghai

作　　者：于海英[1,2] 温燕林 冯策[1,2] Yu Haiying;Wen Yanlin;Feng Ce(Shanghai Earthquake Agency,Shanghai 200062,China;Shanghai Sheshan National Geophysical Observatory and Research Station,Shanghai 200062,China)

机构地区：[1]上海市地震局,上海2000622 [2]上海佘山地球物理国家野外科学观测研究站,上海200062

出　　处：《地震科学进展》2021年第2期59-64,75,共7页Progress in Earthquake Sciences

基　　金：上海佘山地球物理国家野外科学观测研究站开放基金课题《华东地区地壳上地幔三维速度结构的远震P波层析成像研究》(2020K07)资助。

摘　　要：2012年4月2日上海徐汇区发生M_(L)1.9地震,位于徐汇区、闵行区和浦东新区等地区部分房屋有晃动,部分人群有感。本文分析了上海有感地震的原因,在此基础上从地震精确定位、震源深度、地震烈度、地震发生时间以及人口密度和社会影响等对该次地震的有感原因进行了详细的分析。由于目前地震还不能准确预报,而地震的发生有很大的随机性,因此,提高民众防震减灾意识尤为重要。The April 2nd,2012,M_(L)1.9 Xuhui earthquake of Shanghai occurred.Many buildings of Xuhui,Minhang and Pudong were shaken and hundreds of thousands of people in Shanghai felt this earthquake.We analyzed the felt earthquake of Shanghai,and then the basis of this.We elaborated the reason of this felt earthquake from the following several aspects:earthquake location,earthquake depth and intensity,origin time and population density and social influence.At last,we point out that the occurrence of earthquake is random because the earthquakes can not be accurately predicted.Therefore,it is particularly important to raise the public’s awareness of earthquake preparedness and disaster reduction.

关 键 词：上海徐汇 有感地震 地震定位 

分 类 号：P315[天文地球—地震学]