塔中地震台面波震级M_(S7)与M_(S(BB))偏差分析  

Magnitude deviation analysis of surface wave magnitude at Tazhong Seismic Station

作　　者：张录 闫新义 张杰 张剑锋 ZHANG Lu;YAN Xinyi;ZHANG Jie;ZHANG Jianfeng(Hami Earthquake Monitoring Center Station,Xinjiang Uygur Autonomous Region 839000,China;Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi 830011,China;Kashgar Earthquake Monitoring Center Station,Xinjiang Uygur Autonomous Region 844000,China;Korla Earthquake Monitoring Center Station,Xinjiang Uygur Autonomous Region 841000,China)

机构地区：[1]哈密地震监测中心站,新疆维吾尔自治区839000 [2]新疆维吾尔自治区地震局,乌鲁木齐830011 [3]喀什地震监测中心站,新疆维吾尔自治区844000 [4]库尔勒地震监测中心站,新疆维吾尔自治区841000

出　　处：《地震地磁观测与研究》2024年第3期69-75,共7页Seismological and Geomagnetic Observation and Research

基　　金：新疆地震青年科学基金(项目编号:202413)。

摘　　要：选取2018—2021年塔中地震台记录的全球M_(S)≥5.5地震事件,计算面波震级M_(S7)和M_(S(BB)),并分析二者与美国地质调查局(USGS)、中国地震台网中心(CENC)发布震级的偏差。结果表明:2种震级相关度较高,且总体上均较USGS、CENC发布震级大,但M_(S7)震级偏差较小,差值分别约为0.18、0.27,在实际应用中参考意义较大。The global M_(S)≥5.5 seismic events recorded by Tazhong Seismic Station during 2018-2021 were selected to calculate the surface wave magnitudes M_(S7) and M_(S(BB)),and analyze the deviation between them and the magnitudes published by United States Geological Survey(USGS)and China Earthquake Networks Center(CENC).The results show that the correlation between the two magnitudes is higher than that of USGS and CENC,but the M_(S7) magnitude deviation is smaller(0.18 and 0.27),which is more informative in applications.

关 键 词：塔中地震台 面波震级 偏差分析 

分 类 号：P315.7[天文地球—地震学]