自贡台网地震超快速报系统运行结果评估

Evaluation of the operation results of the ultra-fast earthquake reporting system of the Zigong Station Network

地震超快速报系统能够在地震发生后几秒至几十秒内自动确定地震三要素。2018年12月在自贡数字遥测地震台网中心部署该系统进行试运行。在2019年1月—2020年1月试运行期间,显示了该系统产出的时效性,产出的平均用时,实现了秒级产出。定位误差均在测震台网要求范围内,通过短信方式将信息传递出去,大大提升了自贡市的应急响应能力。

The ultra-fast earthquake reporting system can automatically determine the three elements of an earthquake within a few seconds to tens of seconds after the earthquake.The system has been deployed in Zigong Digital Telemetry Seismic Network Center for trial operation since December 2018.After analyzing the automatic positioning results from the trial operation of the system from January 2019 to January 2020,it is found that the ultra-fast reporting system improves the time of automatic quick reporting of Zigong earthquake from minute level to second level.The positioning accuracy meets the requirements of earthquake quick reporting,which can meet the needs of Zigong earthquake emergency work.The causes of errors are also analyzed.