Coseismic and postseismic deformation of the 2016 Mw 6.0 Petermann ranges earthquake from satellite radar observations

Continental earthquakes, especially shallow can cause disasters in populated areas. On 20 May 2016, a moderate magnitude earthquake (Mw 6.0) ruptured on Northern Territory of Australia. With the aim seismic hazard assessment, coseismic and postsesmic deformation Petermann has been determined using ALOS-2 ascending Sentinel-1A descending images. The field suggests that NNW direction with length about km, rake angle 57.1° moment Mw 6.06. maximum slip 1.31 m be observed at depth 1.25 km. small baseline subset (SBAS) InSAR was utilized to obtain postseismic from 69 images orbit. spatiotemporal evolution presents gradually decaying trend, displacement 5.4 cm within 858 days after mainshock. Our afterslip model 0.28 occurred 0.25 km slight shift northwest compared slip. static Coulomb failure stress (CFS) changes various depths were calculated, indicating consistency between high loaded zones aftershock distribution.