山西台网地震预警系统和测震台网数据对比分析

Comparative Analysis of Seismic Early Warning System and Seismic Measuring Network Data in Shanxi Province

收集整理2021年9月至2023年1月山西及邻省所有触发的地震预警事件,针对山西预警JEEW和EEW两套系统产出预警参数和测震数据统一编目数据,从发震时刻、震级、震中位置和震源深度几方面进行对比分析。总体来说,山西地震预警区内地震预警参数基本稳定,可满足山西地震预警条件。

All earthquake early warning events triggered by Shanxi and its neighboring provinces from September 2021 to January 2023 were collected and catalogued.The early warning parameters and seismic data produced by JEEW and EEW systems in Shanxi were compared and analyzed from the aspects of earthquake onset time,magnitude,epicenter location and focal depth.In general,the earthquake early warning parameters in Shanxi earthquake early warning area are basically stable,and the positioning accuracy is high,which can meet the earthquake early warning conditions in Shanxi earthquake early warning area.