{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T00:33:45Z","timestamp":1780533225931,"version":"3.54.1"},"reference-count":51,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2018,5,15]],"date-time":"2018-05-15T00:00:00Z","timestamp":1526342400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["41631073"],"award-info":[{"award-number":["41631073"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Scientific research project of the M 7.0 Jiuzaigou, Sichuan earthquake"},{"name":"Basic Scientific Funding of Institute of Geology, China Earthquake Administration","award":["IGCEA1613"],"award-info":[{"award-number":["IGCEA1613"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Investigating relationships between temporally- and spatially-related continental earthquakes is important for a better understanding of the crustal deformation, the mechanism of earthquake nucleation and occurrence, and the triggering effect between earthquakes. Here we utilize Global Positioning System (GPS) velocities before and after the 2008 Mw 7.9 Wenchuan earthquake to invert the fault coupling of the Longmenshan Fault (LMSF) and investigate the impact of the 2008 Mw 7.9 Wenchuan earthquake on the 2013 Mw 6.6 Lushan earthquake. The results indicate that, before the 2008 Mw 7.9 Wenchuan earthquake, fault segments were strongly coupled and locked at a depth of ~18 km along the central and northern LMSF. The seismic gap between the two earthquake rupture zones was only locked at a depth &lt; 5 km. The southern LMSF was coupled at a depth of ~10 km. However, regions around the hypocenter of the 2013 Mw 6.6 Lushan earthquake were not coupled, with an average coupling coefficient ~0.3. After the 2008 Mw 7.9 Wenchuan earthquake, the central and northern LMSF, including part of the seismic gap, were decoupled, with an average coupling coefficient smaller than 0.2. The southern LMSF, however, was coupled to ~20 km depth. Regions around the hypocenter of the 2013 Mw 6.6 Lushan earthquake were also coupled. Moreover, by interpreting changes of the GPS velocities before and after the 2008 Mw 7.9 Wenchuan earthquake, we find that the upper crust of the eastern Tibet (i.e., the Bayan Har block), which was driven by the postseismic relaxation of the 2008 Mw 7.9 Wenchuan earthquake, thrust at an accelerating pace to the Sichuan block and result in enhanced compression and shear stress on the LMSF. Consequently, downdip coupling of the fault, together with the rapid accumulation of the elastic strain, lead to the occurrence of the 2013 Mw 6.6 Lushan earthquake. Finally, the quantity analysis on the seismic moment accumulated and released along the southern LMSF show that the 2013 Mw 6.6 Lushan earthquake should be defined as a \u201cdelayed\u201d aftershock of the 2008 Mw 7.9 Wenchuan earthquake. The seismic risk is low along the seismic gap, but high on the unruptured southwesternmost area of the 2013 Mw 6.6 Lushan earthquake.<\/jats:p>","DOI":"10.3390\/rs10050753","type":"journal-article","created":{"date-parts":[[2018,5,15]],"date-time":"2018-05-15T03:29:34Z","timestamp":1526354974000},"page":"753","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["GPS-Derived Fault Coupling of the Longmenshan Fault Associated with the 2008 Mw Wenchuan 7.9 Earthquake and Its Tectonic Implications"],"prefix":"10.3390","volume":"10","author":[{"given":"Yanchuan","family":"Li","sequence":"first","affiliation":[{"name":"State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guohong","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinjian","family":"Shan","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunhua","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanqiang","family":"Wu","sequence":"additional","affiliation":[{"name":"First Crust Deformation Monitoring and Application Center, China Earthquake Administration, Tianjin 300180, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongbao","family":"Liang","sequence":"additional","affiliation":[{"name":"First Crust Deformation Monitoring and Application Center, China Earthquake Administration, Tianjin 300180, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunyan","family":"Qu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaogang","family":"Song","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2018,5,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1130\/GSATG18A.1","article-title":"A geological and geophysical context for the Wenchuan earthquake of 12 May 2008, Sichuan, People\u2019s Republic of China","volume":"18","author":"Burchfiel","year":"2008","journal-title":"GSA Today"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"515","DOI":"10.1130\/G25462A.1","article-title":"Coseismic reverse- and oblique-slip surface faulting generated by the 2008 Mw 7.9 Wenchuan earthquake, China","volume":"37","author":"Xu","year":"2009","journal-title":"Geology"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"788","DOI":"10.1126\/science.276.5313.788","article-title":"Surface deformation and lower crustal flow in eastern Tibet","volume":"276","author":"Royden","year":"1997","journal-title":"Science"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1671","DOI":"10.1126\/science.105978","article-title":"Oblique stepwise rise and growth of the Tibet Plateau","volume":"294","author":"Tapponnier","year":"2001","journal-title":"Science"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1016\/j.epsl.2009.07.017","article-title":"Co-seismic ruptures of the 12 May 2008, Ms 8.0 Wenchuan earthquake, Sichuan: East-west crustal shortening on oblique, parallel thrusts along the eastern edge of Tibet","volume":"286","author":"Zhang","year":"2009","journal-title":"Earth Planet. 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