华北区域数字地震台网实时速报系统在河北省地震台网的运行分析
OPEVATION ANALYSIS OF REAL-TIME EARTHQUAKE INFORMATION SYSTEM IN SEISMIC NETWORK OF HEBEI PROVINCE
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摘要: 2008年11月华北区域数字地震台网实时速报系统在河北省台网开始试运行,本文对2009年1月至2010年2月间自动定位结果和河北省地震目录进行了统计和分析,结果表明实时速报系统对于网内天然地震定位结果可靠,平均震中位置偏差2.12±1.46 km,平均震级偏差0.1,平均速报用时86 s。系统在线处理河北滦县M4.2级地震序列效果理想。Abstract: The Real-time quick report system for regional digital seismic network in North China was applied in Hebei province since Nov 2008.Statistically analysis of the automatic locating results from the system and the earthquake catalog of HeBei province show that the earthquake locating results given by the real-time quick report system are reliable,the magnitude deviation is 0.1 and the average time for earthquake speed report is 86 s.This system has outstanding performance while handling the earthquake sequence of an earthquake occurred in Luanxian with magnitude M4.2.