利用近震深度震相研究上海浦东M3.2地震震源深度  

作　　者：王仁涛 王军[1] 冯策 夏波 潘国勇 

机构地区：[1]上海市地震局,上海200063

出　　处：《科技创新与应用》2023年第28期92-95,共4页Technology Innovation and Application

基　　金：上海佘山地球物理国家野外科学观测研究站重点课题(2020Z02);上海市科学技术委员会科研计划项目(19dz1200200);上海佘山地球物理国家野外科学观测研究站研究室课题(2022SSY06)。

摘　　要：利用上海地震台网固定台站记录到的事件波形数据,基于深度震相sPL和参考震相P的到时差,通过与理论地震波形进行拟合,对2014年7月10日,上海浦东M3.2地震进行重新测定,结果表明,此次地震震源深度为5 km,与上海测震台网编目结果给出的9 km相近,并对比Hyposat和CAP定位方法,结果显示sPL方法与这2种定位结果相差不大,因此能获得较可靠的震源深度。Based on the event waveform data recorded by the fixed stations of the Shanghai Seismological Network,and based on the arrival time difference between the depth phase sPL and the reference phase P,the M3.2 earthquake in Pudong,Shanghai on July 10,2014 is re-determined by fitting with the theoretical seismic waveform.The results show that the focal depth of the earthquake is 5km,which is close to the 9km given by the cataloging result of Shanghai Seismological Network,and the location methods of Hyposat and CAP are compared.The results show that there is little difference between the sPL method and the two positioning results,so a more reliable focal depth can be obtained.

关 键 词：sPL深度震相 震源深度 上海地区 波形数据 参考震相 

分 类 号：P315.7[天文地球—地震学]