Abstract：First, using the multiple orbital SAR data provided by Sentinel-1 satellite, we obtain the co-seismic deformation. Second, the quad-tree with data resolution constraint is used as the constraint condition for the coseismic deformation field of November 12, 2017, MW7.3 Iraq earthquake. We develop the format conversion module based on the Okada model. Inversion results show that the earthquake is located in Zagros fold and thrust belt, in which the length of the rupture zone is 44.5 km and the width is 16.1 km. The occurring mechanism of strong earthquakes is strike slip-thrust faults in which the slip angle is 140.68°, the dip angle is 8°, and the maximum slip is 3.83 m. The earthquake caused ground displacements with maximum unlift and subsidence of 50 cm and 40 cm in the satellite line of sight respectively. The depth of this earthquake is 15.5 km, with the total moment of seismic release is 0.97×1020 Nm.
ZHOU Chuanyi,LIU Guolin,CHEN Yang et al. Analysis of the Source Parameters of 2017 Iraq MW7.3 Earthquake Using Sentinel-1A InSAR Data[J]. jgg, 2019, 39(6): 577-582.
