华南地震2024，Vol.44Issue(2)：1-7,7.DOI:10.13512/j.hndz.2024.02.01
寻乌及邻区遗漏地震检测及目录完整性分析
Missing Earthquakes Detection and Integrity Analysis of Earthquake Catalogue in Xunwu and Its Adjacent Area
摘要
Abstract
Using the matched filtering technology to detect the missing earthquake events in Xunwu and its adjacent area from January 2009 to December 2020,a total of 306 missing earthquakes were detected,which is about 40%of the network catalog,and the catalog integrity of earthquakes below ML1.5 has been significantly improved.The b value changes from 0.885 to 0.917 after adding missed earthquakes.The 36,15 and 8 missing earthquakes were detected in Xunwu,Pingyuan and Anyuan earthquake swarms in the region,which are about 1/2,1/3 and 1/5 of the original earthquake swarm catalogue,and the proportion of missing earthquakes is closely related to the number of template earthquakes.The determination result of the ρ value of the Xunwu earthquake swarm changes from non-precursor to precursor after the supplementing the missing earthquakes,indicating that the missing earthquakes detection has an important influence on the identification of precursory earthquake swarm.关键词
寻乌及邻区/遗漏地震检测/模板匹配/b值/前兆震群识别Key words
Xunwu and its adjacent area/Missing earthquakes detection/Template matching/b value/Identification of precursor earthquake swarms分类
天文与地球科学引用本文复制引用
汤兰荣,曾新福,许志山,陈江贻,万祺薇,罗丽,段莉莉..寻乌及邻区遗漏地震检测及目录完整性分析[J].华南地震,2024,44(2):1-7,7.基金项目
中国地震局地震科技星火计划(XH201402Y) （XH201402Y）
江西省防震减灾与工程地质灾害探测工程研究中心开放基金(SDGD202020)联合资助. （SDGD202020）
