华南地震2017，Vol.37Issue(1)：22-28,7.DOI:10.13512/j.hndz.2017.01.004
广东地区重复地震识别及其在台网定位评价中的应用
Recognization of Repeating Earthquakes and Its Application in Network Location Evaluationin in Guangdong Province
摘要
Abstract
According to the complete magnitude analysis,the paper selects 3 969 earthquakes with magnitude larger than 0 from Jan 2010 to Oct 2013 in Guangdong Province and does the waveform cross-correlated analysis.Two events with correlation coefficient larger than 0.8 in no less than 3 stations' vertical waveforms are regarded as a repeat event pair,and 1 612 repeating events are recognized,being 41％ of the whole events.According to the research result that the distance of a repeat pair is about a quarter of the dominant wavelength,seismic phase picking error and location accuracy is quantitatively evaluated.It is observed that 80％ of the phase picking errors are within 0.3 sec,70％ within 0.2 sec and 40％ within 0.1 sec.The location error is smaller in the inland area than coast area,which is related to the dense and even distribution of seismic stations.关键词
重复地震/波形相关/震相拾取精度/定位评价/地震台网Key words
Repeating earthquake/Waveform correlation/Phase picking error/Positioning evaluation/Seismic network分类
天文与地球科学引用本文复制引用
马晓静,吕作勇..广东地区重复地震识别及其在台网定位评价中的应用[J].华南地震,2017,37(1):22-28,7.基金项目
中国地震局测震台网青年骨干培养专项(20140316) （20140316）
