摘要
选取库尔勒地震台2008—2015年记录的数字地震资料,与中国地震台网测定的体波震级进行对比,从震级大小、震中距、震源深度以及震中方位,分析二者之间的关系。结果可知,库尔勒地震台计算震级相对偏大,其中mb平均偏差为0.1455,mB平均偏差为0.1941;震源深度在0—96km时,mb和mB震级偏差接近平均值;当震源深度h>96km时,测定震级和中国地震台网测定震级基本一致;地震发生在第三象限时,台站测定震级与中国地震台网测定震级基本一致。
The digital seismic data were selected from 2008 to 2015 at Korla Seismic Station, comparing with the magnitude of body wave measured by China Earthquake Networks, the relationship between the magnitude, epicenter distance, focal depth and epicenter location was analyzed. According to the analysis results, the average deviation of mb is 0.145 5 and the average deviation of mB is 0.194 1, which indicates that the magnitude of the station calculation is relatively large. When the depth of the seismic source is 0-96 km, the magnitude deviation of mb and mB is close to the average. When the depth of the seismic source is h>96 km, the measured magnitude is basically the same as that measured by China Earthquake Networks. When the earthquake occurs in the third quadrant, the measured magnitude of the station is basically the same as that measured by China Earthquake Networks.
作者
李晓东
李姗姗
张小飞
周远新
刘青山
段绍鑫
Li Xiaodong;Li Shanshan;Zhang Xiaofei;Zhou Yuanxin;Liu Qingshan;Duan Shaoxin(Korla Seismic Station,Xinjiang Uygur Autonomous Region 841000,China)
出处
《地震地磁观测与研究》
2019年第2期34-38,共5页
Seismological and Geomagnetic Observation and Research
基金
中国地震局监测、预测、科研三结合课题(项目编号:CEA-JC/3JH-163105)
关键词
体波震级
台站校正值
震级偏差
对比分析
body wave magnitude
station correction value
magnitude deviation
comparative analysis
