[1]田 平,蒋 策,陈 瑛,等.基于模板匹配方法的微震自动检测在河源M4.3地震中的应用研究[J].华南地震,2023,(04):142-149.[doi:10.13512/j.hndz.2023.04.18]
 TIAN Ping,JIANG Ce,CHEN Ying,et al.Application of Auto-detection of Microearthquake Based on Template Matched Filter Method in Heyuan M4.3 Earthquake[J].,2023,(04):142-149.[doi:10.13512/j.hndz.2023.04.18]
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基于模板匹配方法的微震自动检测在河源M4.3地震中的应用研究()
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华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年04期
页码:
142-149
栏目:
三水3.2级地震、河源4.3级地震专栏
出版日期:
2023-12-30

文章信息/Info

Title:
Application of Auto-detection of Microearthquake Based on Template Matched Filter Method in Heyuan M4.3 Earthquake
文章编号:
1001-8662(2023)04-0142-08
作者:
田 平12蒋 策12陈 瑛12梁 明12
1.广东省地震局,广州 510070;2.中国地震局地震监测与减灾技术重点实验室,广州 510070
Author(s):
TIAN Ping12JIANG Ce12CHEN Ying12LIANG Ming12
1.Guangdong Earthquake Agency,Guangzhou 510070,China;2.Key Laboratory of Earthquake Monitoring and Disaster Mitigation Technology,CEA,Guangzhou 510070,China
关键词:
波形模板匹配地震检测地震目录
Keywords:
Waveform template matchingEarthquake detectionEarthquake catalog
分类号:
P315.7
DOI:
10.13512/j.hndz.2023.04.18
文献标志码:
A
摘要:
基于广东新丰江水库区密集的测震台网,利用波形匹配定位方法对库区内2018—2019年期间的地震波形进行分析,发现在新丰江河源地区,存在有大量未被记录的微震事件,匹配定位方法适用于新丰江地区的微震事件检测。通过分析本地区地震事件的主要波形特征,初步建立新丰江地区的微震模板事件库,利用脚本实现地震事件文件与地震模板的自动转换,达到对新丰江地区地震模板库的实时扩充的要求,借助JOPENS的波形导出功能,实现对地震连续波形文件的自动预处理,基本达到基于模板匹配定位方法的自动检测功能的要求,可将其应用于台网的地震目录完善工作。
Abstract:
Based on the dense seismic network in the Xinfengjiang Reservoir area of Guangdong,the template matched filter method is used to analyze the seismic waveform in the reservoir area from 2018 to 2019. It is found that there are a large number of unrecorded microearthquake events in the Heyuan area of Xinfengjiang,and the matched filter method is suitable for the microearthquake event detection in Xinfengjiang area. By analyzing the main waveform characteristics of seismic events in this area,the microearthquake template event database in Xinfengjiang area is preliminarily established. The script is used to realize the automatic conversion of seismic event files and seismic templates,so as to meet the requirements of real-time expansion of seismic template database in Xinfengjiang area. With the help of the waveform export function of JOPENS,the automatic preprocessing of continuous seismic waveform files is realized,which basically meets the requirements of the automatic detection function based on the match and locate method,and can be applied to the improvement of the earthquake catalog completeness.

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备注/Memo

备注/Memo:
收稿日期:2023-04-28
基金项目:中国地震局监测、预报、科研三结合课题(3JH-2021034,3JH-202201017);中央级公益性科研院所基本科研业务专项(DQJB22Z01)联合资助。
作者简介:田平(1987-),男,工程师,主要从事地震监测与分析研究工作。
E-mail:tianping87@163.com
更新日期/Last Update: 2023-12-30