新疆测震台网与中国地震台网测定的地震级对比分析

摘要

选用2010 ～2012年间新疆境内和边邻地区Ms≥4.0地震41个,以中国地震台网给出的震级为标准震级,对新疆台网记录的数字记录波形使用不同仪器分析、仿真处理.用速度量记录直接计算,将速度量记录仿真为短周期WA位移记录、中长周期SK仪记录的勒夫波和长周期763仪记录的瑞利波位移记录计算震级,分别进行了震级偏差统计分析,初步得出震级偏差值的震级校正值,有利于提高新疆地震台网速报地震震级的准确性.%Using 41 earthquakes with Ms ≥4.0 in Xinjiang and adjacent region from 2010 to 2012,this paper analyzed digital waveform from Xinjiang seismic network through different instruments and method according to standard magnitude of CENC.They simulated velocity quantity as short term WA record 、mid long term love wave and long term Raleigh wave to determine magnitude.According to analysis on magnitude deviation,they got corrected value of magnitude in order to improve magnitude accuracy determined rapidly by Xinjiang seismic network.