Abstract On 9th August, 2017, an MS6.6 earthquake occurred in Jinghe county of Xinjiang, China. In this study, ascending and descending tracks of Sentinel-1A/B images are employed to derive the precise coseismic surface displacements, then a two-step inversion strategy with uniform slip model and distributed slip model is used to estimate the fault geometry and coseismic slip distribution. InSAR results show that the coseismic deformation range is about 30 km×40 km. Our model suggests that the distributed slip mode can fit the observations very well. The earthquake fault is a thrust fault with a strike of 83.8°, a dip of 40.6°, a rake of 89.1°, a focal depth of 20.7 km, and the moment magnitude is 6.3, which is consistent with seismological results. The causative fault of Jinghe earthquake is Kusongmuxieke mountain front fault, and this earthquake is caused by the dislocation at the deep of thrust fault zone in the northern Tianshan mountains, Xinjiang.
LIU Chuanjin,QIU Jiangtao,WANG Jinshuo. The 2017 Jinghe MS6.6 Earthquake Inversion from Ascending and Descending Sentinel-1 Observations[J]. jgg, 2018, 38(11): 1111-1116.
LIU Chuanjin,QIU Jiangtao,WANG Jinshuo. The 2017 Jinghe MS6.6 Earthquake Inversion from Ascending and Descending Sentinel-1 Observations[J]. jgg, 2018, 38(11): 1111-1116.
