防灾减灾工程学报2025，Vol.45Issue(2)：357-364,8.DOI:10.13409/j.cnki.jdpme.20231129005
RISP系统在2018年台湾海峡MS6.2地震序列中的应用研究
Application of RISP System to MS6.2 Taiwan Strait Earthquake Sequence in 2018
摘要
Abstract
To evaluate the performance of the Real-Time Intelligent Seismic Processing(RISP)sys-tem in processing earthquake sequences in marine areas with poor seismic station coverage,continu-ous waveform data for 21 days before and after the MS 6.2 earthquake in the Taiwan Strait on Novem-ber 26,2018,were processed offline.A comparative analysis was conducted between the automated processing results and manual cataloging results.The completeness of the automated earthquake cata-logs generated by the system and the reliability of parameters,including hypocenter location,magni-tude,and seismic phase arrival time,were quantitatively evaluated.A total of 407 earthquake catalogs were generated by the RISP system.Among these,93 matched the multi-station manual catalogs(100%matching rate),and 200 matched the single-station manual catalogs(93.9%matching rate).The remaining 114 catalogs were events of the Taiwan Strait earthquake sequence that were undetect-ed by manual cataloging.Statistical results of the matched events showed that 96.77%had origin time deviations less than 1.0 s,100%showed epicenter location deviations less than 10 km,50.54%had focal depth deviations less than 10 km,and 98.92%exhibited magnitude deviations less than 0.5.The RISP system could rapidly generate earthquake sequence catalogs for the Taiwan strait,with signifi-cantly better completeness than manual cataloging and comparable accuracy of seismic parameters to manual cataloging.Using the automated processing results,this study inverted the focal mechanism solution of the mainshock and performed precise relocation for earthquakes with ML≥3.0.It was be-lieved that the seismogenic structure of MS 6.2 Taiwan Strait earthquake was likely an east-west trend-ing blind fault.The automated processing results of the RISP system enable rapid identification of seis-mogenic faults,providing support for earthquake prediction and forecasting,along with emergency re-sponse operations.The distribution characteristics of the earthquake sequence and the focal mecha-nism of the mainshock generated by the RISP are of great significance for understanding the seismo-genic structure of this earthquake sequence.关键词
台湾海峡地震序列/自动编目/RISP/深度学习Key words
Taiwan Strait earthquake sequence/automated cataloging/RISP/deep learning分类
天文与地球科学引用本文复制引用
张燕明,廖诗荣,陈惠芳,胡淑芳..RISP系统在2018年台湾海峡MS6.2地震序列中的应用研究[J].防灾减灾工程学报,2025,45(2):357-364,8.基金项目
地震科技星火计划(XH21026Y)资助 （XH21026Y）
