{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T18:49:23Z","timestamp":1781808563410,"version":"3.54.5"},"reference-count":48,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2021,4,19]],"date-time":"2021-04-19T00:00:00Z","timestamp":1618790400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Jianqiao Xu","award":["XDB4100000"],"award-info":[{"award-number":["XDB4100000"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>On 8 August 2017, a surface wave magnitude (Ms) 7.0 earthquake occurred at the buried faults extending to the north of the Huya fault. Based on the coseismic deformation field obtained from interferometric synthetic aperture radar (InSAR) data and a series of finite fault model tests, we propose a brand-new two-fault model composed of a main fault and a secondary fault as the optimal model for the Jiuzhaigou earthquake, in which the secondary fault is at a wide obtuse angle to the northern end of the main fault plane. Results show that the dislocation distribution is dominated by sinistral slip, with a significant shallow slip deficit. The main fault consists of two asperities bounded by an aftershock gap, which may represent a barrier. In addition, most aftershocks are located in stress shadows and appear a complementary pattern with the coseismic high-slip regions. We propose that the aftershocks are attributable to the background tectonic stress, which may be related to the velocity-strengthening zones.<\/jats:p>","DOI":"10.3390\/rs13081573","type":"journal-article","created":{"date-parts":[[2021,4,19]],"date-time":"2021-04-19T06:35:53Z","timestamp":1618814153000},"page":"1573","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Probing the Fault Complexity of the 2017 Ms 7.0 Jiuzhaigou Earthquake Based on the InSAR Data"],"prefix":"10.3390","volume":"13","author":[{"given":"Xiongwei","family":"Tang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Geodesy and Earth\u2019s Dynamic, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China"},{"name":"College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rumeng","family":"Guo","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Geodesy and Earth\u2019s Dynamic, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China"},{"name":"College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China"},{"name":"Earth System Science Programme, The Chinese University of Hong Kong, Shatin, Hong Kong, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianqiao","family":"Xu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Geodesy and Earth\u2019s Dynamic, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heping","family":"Sun","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Geodesy and Earth\u2019s Dynamic, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China"},{"name":"College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaodong","family":"Chen","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Geodesy and Earth\u2019s Dynamic, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiangcun","family":"Zhou","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Geodesy and Earth\u2019s Dynamic, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430077, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,4,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"805","DOI":"10.1007\/s10950-018-9733-1","article-title":"Joint inversion of GNSS and teleseismic data for the rupture process of the 2017 Mw6.5 Jiuzhaigou, China, earthquake","volume":"22","author":"Li","year":"2018","journal-title":"J. Seism."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"228538","DOI":"10.1016\/j.tecto.2020.228538","article-title":"A hybrid source mechanism of the 2017 Mw 6.5 Jiuzhaigou earthquake revealed by the joint inversion of strong-motion, teleseismic and InSAR data","volume":"789","author":"Zheng","year":"2020","journal-title":"Tectonophysics"},{"key":"ref_3","first-page":"4069","article-title":"InSAR observation and inversion of the seismogenic fault for the 2017 Jiuzhaigou MS7.0 earthquake in China","volume":"60","author":"Ji","year":"2017","journal-title":"Chin. J. Geophys."},{"key":"ref_4","first-page":"2025","article-title":"Seismic activities and earthquake potential in the Tibetan Plateau","volume":"57","author":"Deng","year":"2014","journal-title":"Chin. J. Geophys."},{"key":"ref_5","first-page":"4018","article-title":"Discussion on seismogenic structure of Jiuzhaigou earthquake and its implication for current strain state in the southeastern Qinghai-Tibet Plateau","volume":"60","author":"Xu","year":"2017","journal-title":"Chin. J. Geophys."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"649","DOI":"10.1360\/N972017-01184","article-title":"Relocation of mainshock and aftershock sequence of the Ms7.0 Sichuan Jiuzhaigou earthquake","volume":"63","author":"Fang","year":"2018","journal-title":"Chin. Sci. Bull."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"19617","DOI":"10.1029\/94JB01179","article-title":"On the derivation of coseismic displacement fields using differential radar interferometry: The Landers earthquake","volume":"99","author":"Zebker","year":"1994","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1038\/s41467-018-03739-2","article-title":"Constant strain accumulation rate between major earthquakes on the North Anatolian Fault","volume":"9","author":"Hussain","year":"2018","journal-title":"Nat. Commun."},{"key":"ref_9","first-page":"55","article-title":"Fault model of the 2017 Jiuzhaigou Mw 6.5 earthquake estimated from coseismic deformation observed using Global Positioning System and Interferometric Synthetic Aperture Radar data","volume":"70","author":"Nie","year":"2018","journal-title":"Earthplanets Space"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"2230","DOI":"10.1002\/2017GL076421","article-title":"The 2017 Jiuzhaigou Earthquake: A Complicated Event Occurred in a Young Fault System","volume":"45","author":"Sun","year":"2018","journal-title":"Geophys. Res. Lett."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Zhao, D., Qu, C., B\u00fcrgmann, R., Gong, W., and Shan, X. (2021). Relaxation of Tibetan Lower Crust and Afterslip Driven by the 2001 Mw7.8 Kokoxili, China, Earthquake Constrained by a Decade of Geodetic Measurements. J. Geophys. Res. Solid Earth, 126.","DOI":"10.1029\/2020JB021314"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"402","DOI":"10.1016\/j.enggeo.2018.10.013","article-title":"Mapping ground movements caused by mining-induced earthquakes applying satellite radar interferometry","volume":"246","author":"Malinowska","year":"2018","journal-title":"Eng. Geol."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Sopata, P., Stoch, T., W\u00f3jcik, A., and Mroche\u0144, D. (2020). Land Surface Subsidence Due to Mining-Induced Tremors in the Upper Silesian Coal Basin (Poland)\u2014Case Study. Remote Sens., 12.","DOI":"10.3390\/rs12233923"},{"key":"ref_14","first-page":"4527","article-title":"Coseismic deformation field of the Jiuzhaigou MS7.0 earthquake from Sentinel-1A InSAR data and fault slip inversion","volume":"60","author":"Shan","year":"2017","journal-title":"Chin. J. Geophys."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Hong, S., Zhou, X., Zhang, K., Meng, G., Dong, Y., Su, X., Zhang, L., Li, S., and Ding, K. (2018). Source Model and Stress Disturbance of the 2017 Jiuzhaigou Mw 6.5 Earthquake Constrained by InSAR and GPS Measurements. Remote Sens., 10.","DOI":"10.3390\/rs10091400"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1016\/j.tecto.2018.01.026","article-title":"InSAR and GPS derived coseismic deformation and fault model of the 2017 Ms7.0 Jiuzhaigou earthquake in the Northeast Bayanhar block","volume":"726","author":"Zhao","year":"2018","journal-title":"Tectonophyicsics"},{"key":"ref_17","first-page":"2122","article-title":"Study on the coseismic slip model and Coulomb stress of the 2017 Jiuzhaigou MS7.0 earthquake constrained by GNSS and InSAR measurements","volume":"61","author":"Chen","year":"2018","journal-title":"Chin. J. Geophys."},{"key":"ref_18","first-page":"115","article-title":"Joint inversion of strong motion and InSAR\/GPS data for fault slip distribution of the Jiuzhaigou 7.0 earthquake and its application in seismology","volume":"61","author":"Shen","year":"2019","journal-title":"Chin. J. Geophys."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1007\/s11430-017-9161-y","article-title":"Preliminary analysis on the source properties and seismogenic structure of the 2017 Ms7.0 Jiuzhaigou earthquake","volume":"61","author":"Xie","year":"2018","journal-title":"Sci. China Earth Sci."},{"key":"ref_20","first-page":"4083","article-title":"Focal mechanism solutions and seismogenic structure of the 8 August 2017 M7.0 Jiuzhaigou earthquake and its aftershocks, northern Sichuan","volume":"60","author":"Feng","year":"2017","journal-title":"Chin. J. Geophys."},{"key":"ref_21","first-page":"366","article-title":"Fault Plane Parameters of 2017 Jiuzhaigou Ms7. 0 Earthquake Determined by Aftershock Distribution","volume":"42","author":"Hu","year":"2019","journal-title":"J. Seismol. Res."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"4895","DOI":"10.1029\/2018JB016340","article-title":"Source Characteristics of the 2017 Ms 7.0 Jiuzhaigou, China, Earthquake and Implications for Recent Seismicity in Eastern Tibet","volume":"124","author":"Liu","year":"2019","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1029\/2004JB003415","article-title":"Forecasting the evolution of seismicity in southern California: Animations built on earthquake stress transfer","volume":"110","author":"Toda","year":"2005","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_24","first-page":"4398","article-title":"Coseismic Coulomb stress changes associated with the 2017 MW6.5 Jiuzhaigou earthquake (China) and its impacts on surrounding major faults","volume":"60","author":"Wang","year":"2017","journal-title":"Chin. J. Geophys."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"441","DOI":"10.1029\/97RG03139","article-title":"Radar interferometry and its application to changes in the Earth\u2019s surface","volume":"4","author":"Massonnet","year":"1998","journal-title":"Rev. Geophys."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"4035","DOI":"10.1029\/1998GL900033","article-title":"Radar interferogram filtering for geophysical applications","volume":"25","author":"Goldstein","year":"1998","journal-title":"Geophys. Res. Lett."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"23109","DOI":"10.1029\/96JE01459","article-title":"Surface deformation and coherence measurements of Kilauea Volcano, Hawaii, from SIR-C radar interferometry","volume":"101","author":"Rosen","year":"1996","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1135","DOI":"10.1785\/BSSA0750041135","article-title":"Surface deformation due to shear and tensile faults in a half-space","volume":"75","author":"Okada","year":"1985","journal-title":"B Seismol. Soc. Am."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"117","DOI":"10.29382\/eqs-2018-0117-1","article-title":"Rupture model of the 2013 M W 6.6 Lushan (China) earthquake constrained by a new GPS data set and its effects on potential seismic hazard","volume":"31","author":"Guo","year":"2018","journal-title":"Earthq. Sci."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"1111","DOI":"10.1785\/0220180262","article-title":"Seismic and Aseismic Fault Slip Associated with the 2017 M w 8.2 Chiapas, Mexico, Earthquake Sequence","volume":"90","author":"Guo","year":"2019","journal-title":"Seismol. Res. Lett."},{"key":"ref_31","unstructured":"Wang, R., Diao, F., and Hoechner, A. (2013, January 7\u201312). SDM\u2014A geodetic inversion code incorporating with layered crust structure and curved fault geometry. Proceedings of the EGU General Assembly 2013, Vienna, Austria."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"195","DOI":"10.1016\/S0098-3004(02)00111-5","article-title":"Computation of deformation induced by earthquakes in a multi-layered elastic crust\u2014FORTRAN programs EDGRN\/EDCMP","volume":"29","author":"Wang","year":"2003","journal-title":"Comput. Geosci. UK"},{"key":"ref_33","unstructured":"Laske, G., Masters, G., Ma, Z., and Pasyanos, M.E. (2012, January 22\u201327). CRUST1.0: An updated global model of Earth\u2019s crust. Proceedings of the EGU General Assembly 2012, Vienna, Austria."},{"key":"ref_34","first-page":"469","article-title":"Relocations and focal mechanism solutions of the 2017 Jiuzhaigou, Sichuan MS 7.0 earthquake sequence","volume":"34","author":"Wang","year":"2019","journal-title":"Process Geophys."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"2266","DOI":"10.1007\/s11629-017-4703-6","article-title":"Source tectonic dynamics features of Jiuzhaigou Ms 7.0 earthquake in Sichuan Province, China","volume":"15","author":"Yi","year":"2018","journal-title":"J. Mt. Sci."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1093\/gji\/ggv264","article-title":"Bootstrap resampling as a tool for uncertainty analysis in 2-D magnetotelluric inversion modelling","volume":"203","author":"Schnaidt","year":"2015","journal-title":"Geophys. J. Int."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"855","DOI":"10.1785\/BSSA0780020855","article-title":"Maximum-likelihood event magnitude estimation with bootstrapping for uncertainty estimation","volume":"78","author":"McLaughlin","year":"1988","journal-title":"B Seismol. Soc. Am."},{"key":"ref_38","first-page":"54","article-title":"Bootstrap Methods for Standard Errors, Confidence Intervals, and Other Measures of Statistical Accuracy","volume":"1","author":"Efron","year":"1986","journal-title":"Stat. Sci."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"110","DOI":"10.1029\/2004JB003368","article-title":"Fault branching and rupture directivity","volume":"110","author":"Fliss","year":"2005","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"2459","DOI":"10.1785\/0120030026","article-title":"The 1999 Hector Mine Earthquake: The Dynamics of a Branched Fault System","volume":"93","author":"Oglesby","year":"2003","journal-title":"B. Seismol. Soc. Am."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"154","DOI":"10.1785\/0120190162","article-title":"Evidence of Fault Immaturity from Shallow Slip Deficit and Lack of Postseismic Deformation of the 2017 Mw 6.5 Jiuzhaigou Earthquake","volume":"110","author":"Li","year":"2020","journal-title":"Bull. Seism. Soc. Am."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"1432","DOI":"10.1126\/science.265.5177.1432","article-title":"Stress Triggering of the 1994 M = 6.7 Northridge, California, Earthquake by Its Predecessors","volume":"265","author":"Stein","year":"1994","journal-title":"Science"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"e2019JB019267","DOI":"10.1029\/2019JB019267","article-title":"The 2018 Mw 7.9 Offshore Kodiak, Alaska, Earthquake: An Unusual Outer Rise Strike-Slip Earthquake","volume":"125","author":"Guo","year":"2020","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"527","DOI":"10.1016\/j.cageo.2005.08.006","article-title":"PSGRN\/PSCMP\u2014a new code for calculating co- and post-seismic deformation, geoid and gravity changes based on the viscoelastic-gravitational dislocation theory","volume":"32","author":"Wang","year":"2006","journal-title":"Comput. Geosci."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"2113","DOI":"10.1093\/gji\/ggaa143","article-title":"Stress modulation of the seismic gap between the 2008 M s 8.0 Wenchuan earthquake and the 2013 M s 7.0 Lushan earthquake and implications for seismic hazard","volume":"221","author":"Guo","year":"2020","journal-title":"Geophys. J. Int."},{"key":"ref_46","first-page":"1","article-title":"Rupture processes and Coulomb stress changes of the 2017 Mw 6.5 Jiuzhaigou and 2013 Mw 6.6 Lushan earthquakes","volume":"71","author":"Lin","year":"2019","journal-title":"Earthplanets Space"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"2181","DOI":"10.1007\/s11430-017-9125-2","article-title":"Coseismic Coulomb failure stress changes caused by the 2017 M7.0 Jiuzhaigou earthquake, and its relationship with the 2008 Wenchuan earthquake","volume":"60","author":"Shan","year":"2017","journal-title":"Sci. China Earth Sci."},{"key":"ref_48","doi-asserted-by":"crossref","unstructured":"Helmstetter, A., and Shaw, B.E. (2006). Relation between stress heterogeneity and aftershock rate in the rate-and-state model. J. Geophys. Res. Space Phys., 111.","DOI":"10.1029\/2005JB004077"}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/13\/8\/1573\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T05:49:32Z","timestamp":1760161772000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/13\/8\/1573"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,4,19]]},"references-count":48,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2021,4]]}},"alternative-id":["rs13081573"],"URL":"https:\/\/doi.org\/10.3390\/rs13081573","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,4,19]]}}}