Pishan earthquake paper was accepted

Release time:2020-04-25

We has also published a new paper in Seismological Research Letters . The 2015 Mw 6.4 Pishan earthquake is the largest one in the Tarim basin since 1976. It caused great damages to infrastructures and privates houses in the Pishan City and surrounding areas. We use ascending and descending interferometric Sentinel-1A and ALOS2 data to constrain the source parameters of this earthquake. The coseismic fault slip model obtained from a joint inversion indicates that the rupture is dominated by a thrust motion with a 7 km buried depth. The fault slip is centralized on a roughly 30 km (along-strike) ×15 km (down-dip) rectangular asperity, with the maximum slip ~ 1m at a depth of 11 km. The total seismic moment 5.6×1018 Nm, corresponding to a moment magnitude Mw 6.47, is slightly larger than the seismological estimate. The absence of fault slip in the upper 7 km of the crust suggests that this earthquake left an unruptured up-dip fault under the Pishan City. Both the coseismic fault slip distribution and the early post-seismic deformation demonstrate that the Sentinel-1A data has obvious superiority in monitoring earthquakes worldwide.