湖北地震台网仿真前后震级对比分析  

Contrastive analysis of seismic magnitudes before and after earthquake simulation for Hubei seismic network

作　　者：周洋 申学林[1,2] 魏贵春 戴苗[1,2] Zhou Yang;Shen Xuelin;Wei Guichun;Dai Miao(Institute of Seismology,CEA(Key Laboratory of Seismological Geodesy),Wuhan 430071,China;Hubei Earthquake Agency,Wuhan 430071,China)

机构地区：[1]中国地震局地震研究所(地震大地测量重点实验室),武汉430071 [2]湖北省地震局,武汉430071

出　　处：《地震科学进展》2020年第2期23-26,共4页Progress in Earthquake Sciences

基　　金：中国地震局地震研究所基本科研业务费专项(6292-6)资助。

摘　　要：按照中国地震局测震台网运行管理细则要求,地震编目中的震级是对地震波形进行WA仿真处理后的震级。本文对湖北数字测震台网2016年1月—2018年12月记录到的ML≥2.0的68次地震事件,在震级方面分别做了仿真前后的对比分析,并给出其偏差。结果表明:仿真后的震级多数大于仿真前的震级,但震级差均在0.4级以内。本文的研究为湖北地震台网震级测定提供了参考。地震分析预报人员速报时可不采用仿真震级,但对于编目和研究人员可采用仿真震级。According to the requirements of seismic cataloguing in the operation and management rules of Seismic Network of the China Earthquake Administration,the magnitude of earthquake should be measured after WA simulation of seismic waveform.In this paper,68 earthquake events with ML≥2.0 recorded by Hubei Digital Seismological Network from January 2016 to December 2018 are compared and analyzed before and after simulation in magnitude,and their deviations are given.The results show that the magnitudes after simulation are mostly larger than those before simulation with magnitude difference less than 0.4.It provides a reference for the determination of the magnitude of the Hubei Seismic Network.Simulated magnitude is not used for quick report,but it can be used for cataloguing and researcher.

关 键 词：Jopens系统 仿真震级 编目 地震事件 

分 类 号：P315.6[天文地球—地震学]