华南地震2023，Vol.43Issue(4)：119-125,7.DOI:10.13512/j.hndz.2023.04.15
地震自动编目处理系统在2023年广东河源M4.3地震序列中的应用
Application of Seismic Automatic Cataloguing Processing System in Heyuan M4.3 Earthquake Sequence in Guangdong in 2023
摘要
Abstract
Two sets of seismic automatic cataloguing processing systems developed by the earthquake monitoring technology and software R&D innovation team of Guangdong Earthquake Agency were used to process the continuous waveform data recorded by Guangdong seismic network one day before and seven days after the main earthquake of Heyuan M4.3 earthquake on February 11,2023.Combined with the manual cataloguing results,the automatic detection results of the system during this period were analyzed in detail.The results show that the number of earthquakes automatically detected by system 1 is 2.67 times that of the manual catalog,and the event matching rate is high,while the number of earthquakes automatically detected by system 2 is about half that of the manual catalog,and the matching rate of earthquake events with ML≤1.0 is low.The automatic detection results of the two systems are all seismic events,the real rate of automatic detection events is 100%.The deviation between the automatic catalog and the manual catalog produced by the two systems is small in the earthquake origin time,epicenter location,the focal depth,the arrival time of Pg and Sg phase,and the reliability is high.On the whole,the two systems have the ability of seismic automatic cataloging.In contrast,system 1 has a stronger ability to handle dense aftershocks after a large earthquake and can produce a relatively complete earthquake catalog.关键词
地震自动编目/深度学习/广东河源地震Key words
Seismic automatic cataloguing/Deep learning/Heyuan earthquake in Guangdong分类
天文与地球科学引用本文复制引用
梁明,刘军,洪玉清,林庆西,姜喜姣,田平..地震自动编目处理系统在2023年广东河源M4.3地震序列中的应用[J].华南地震,2023,43(4):119-125,7.基金项目
中央级公益性科研院所基本科研业务专项(DQJB22Z01)和广东省地震局青年地震科研基金(重点实验室开放基金)项目(GDDZY202309)联合资助. （DQJB22Z01）
