山西地震预警新建基准站数据质量评估  

Data Quality Assessment of Newly Established Reference Stations for Earthquake Early Warning in Shanxi

作　　者：丁大业 董春丽[1,2] 宫卓宏 陈永新[1,2] 吕飞亚 DING Da-ye;DONG Chun-li;GONG Zhuo-hong;CHEN Yong-xin;LV Fei-ya(Shanxi Earthquake Agency,Taiyuan,Shanxi 030021,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China)

机构地区：[1]山西省地震局,山西太原030021 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2023年第2期15-22,共8页Earthquake Research in Shanxi

基　　金：山西省地震局科研项目(SBK-2212)。

摘　　要：国家地震烈度速报与预警工程项目于2015年开始建设,山西预警工程子项目是其中的一部分,于2022年4月进入内部测试运行阶段。文章从台站运行、台基背景噪声水平及事件波形记录三方面对山西预警工程子项目30个新建基准站的数据质量进行评估,同时对比分析预警台站建成前后山西测震台网地震监测能力的变化。结果表明,新建台站的观测环境总体良好,仪器运行平稳,数据连续率较高,省内外地震事件波形记录清晰,预警区域内的地震监测能力明显提升,地震监测能力为0.5级的区域明显扩大,覆盖全省大多数地区。The National Earthquake Intensity Rapid Reporting and Early Warning Engineering Project commenced in 2015,and the Shanxi Early Warning Engineering Subproject is a part of it.In April 2022,it entered the internal testing and operation phase.This article evaluates the data quality of 30 newly established reference stations in the Shanxi Early Warning Engineering Subproject,focusing on station operation,background noise levels,and waveform recordings of seismic events.It also compares and analyzes the changes in seismic monitoring capabilities of the Shanxi Seismic Network before and after the establishment of the early warning stations.The results indicate that the newly established stations have generally good observation environments,stable instrument operation,high data continuity rates,and clear waveform recordings of seismic events both within and outside the province.The seismic monitoring capability within the early warning region has significantly improved,with an evident expansion of the region with a monitoring capability of 0.5 intensity level from north to south,covering most areas of the province.

关 键 词：地震监测能力 预警基准站 数据质量 台基噪声水平 

分 类 号：P315.73[天文地球—地震学]