Locating the Small 1999 Frenchman Flat, Nevada Earthquake with InSAR Stacking

作     者：Zhenhong LI Zhenhong LI

作者机构：College of Geological Engineering and GeomaticsChang’an UniversityXi’an 710054China Key Laboratory of Western China’s Mineral Resources and Geological EngineeringMinistry of EducationXi’an 710054China COMETSchool of EngineeringNewcastle UniversityNewcastle upon Tyne NE17RUUK 

出 版 物：《Journal of Geodesy and Geoinformation Science》 (测绘学报（英文版）)

年 卷 期：2022年第5卷第1期

页      面：39-49页

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081802[工学-地球探测与信息技术] 070801[理学-固体地球物理学] 07[理学] 08[工学] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 081602[工学-摄影测量与遥感] 0816[工学-测绘科学与技术] 

基　　金：Shaanxi Province Science and Technology Innovation Team(No.2021TD-51) ESA-MOST DRAGON-5 Project(No.59339) 

主　　题：InSAR phase stacking earthquake precise location 

摘      要：Due to high interferometric coherence in the Nevada region,Interferometric Synthetic Aperture Radar(InSAR)phase stacking is capable of mapping coseismic signals from the 27 January 1999,M w 4.8 Frenchman Flat *** is one of the smallest earthquakes yet studied using InSAR with line-of-sight displacements as small as~1.5 *** the event as dislocation in an elastic half space suggests that the fault centroid was located at(115.96°W,36.81°N)with a precision of 0.2~0.3 km(1σ)at a depth of 3.4±0.2 *** the dense local seismic network in southern Nevada,differences as large as 2~5 km were observed between our InSAR earthquake location and those estimated from seismic *** InSAR-derived magnitude appeared to be greater than that from seismic data,which is consistent with other studies,and believed to be due to the relatively long time interval of InSAR data.