Shallow coseismic slip and downdip afterslip associated with the 2022 MW6.7 Menyuan(China)earthquakeOA
Shallow coseismic slip and downdip afterslip associated with the 2022 MW6.7 Menyuan(China)earthquake
Xinyue Lei;Pengfei Yu;Bin Zhao;Dongzhen Wang;Shuang'an Xu;Jiansheng Yu;Mu Lin;Lijiang Zhao;Gongwen Huang;Weilai Wang
Key Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan 430071,China||Geodetic Data Processing Center,Ministry of Natural Resources,Xi'an 710054,ChinaKey Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan 430071,ChinaKey Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan 430071,ChinaKey Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan 430071,ChinaChina Railway First Survey and Design Institute,Xi'an 710043,ChinaKey Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan 430071,ChinaKey Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan 430071,China||Gravitation and Solid Earth Tides,National Observation and Research Station,Wuhan 430071,ChinaQinghai Institute of Basic Surveying and Mapping,Xining 810001,ChinaGeodetic Data Processing Center,Ministry of Natural Resources,Xi'an 710054,ChinaInstitute of Geophysics,China Earthquake Administration,Beijing 100081,China
Menyuan earthquakeGNSSCoseismic deformationStress dropAfterslip
Menyuan earthquakeGNSSCoseismic deformationStress dropAfterslip
《大地测量与地球动力学（英文版）》 2026 (1)
45-56,12
The Sentinel-1 data are acquired by the ESA and downloaded at the Alaska Satellite Facility(https://search.asf.alaska.edu).The code Unicycle used to simulate viscoelastic relaxation is available at https://bitbucket.org/sbarbot/unicycle.The majority of the fig-ures were generated utilizing Generic Mapping Tools(GMT).The relocated aftershock catalog is from Yang et al.[1].The field investigation results are based on the work of Li et al.[11]and Pan et al.[3].Part of the coseismic GNSS displacements are from the results of Li et al.[13].The coseismic displacements,cumulative postseismic displacements in the initial 2.7 years after the Menyuan earthquake,as well as the position time series,are openly available from Zenodo(https://doi.org/10.5281/zenodo.14499473).This work was supported by the National Natural Science Foundation of China(No.42074116),the Open Foundation of Wuhan,Gravitation and Solid Earth Tides,National Observation and Research Station(WHYWZ202404),and the Research grants from National Institute of Natural Hazards,Ministry of Emergency Management of China(ZDJ2024-31).We thank Shaoyang Li and two anonymous reviewers for their suggestions that improved the quality of the manuscript.
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