Constraints on Source Parameters of the 25 April 2015, M_w = 7.8 Gorkha, Nepal Earthquake from Synthetic Aperture Radar Interferometry

Abstract

mountain range, NW India, and its hinterland: the U-Pb and Hf isotope record of detrital zircon. Precambrian Res., 2011, 187, 155-164. 27

Crustal Deformation Studies using Synthetic Aperture Interferometry

“…The mid-crustal ramp structure is known to have accumulating stress in the inter-seismic period as suggested by micro-seismic and geodetic observations (Pandey et al, 1995;Avouac, 2003). Keeping these observations in view, Sreejith et al, 2016a have suggested that the Gorkha earthquake was possibly caused by the release of inter-seismic strain energy accumulated in the environs of mid-crustal ramp due to plate boundary forces. However, it appears that the hypothesis put forward in this study need to be verified using more sophisticated models.…”

“…The observed deformation pattern of the coseismic deformation was explained by a simple forward model (Sreejith, et al, 2016a) consisting of planar dislocation buried in elastic half-space (Okada, 1985). The model revealed that the overall rupture occurred on a 170 km long, 60 km wide fault along the strike (286°) and dipping north (dip=15°) with large amount of slip (4.5 m) confined to the center (95×22 km2) and less slip (0.25 m) on the surrounding part of the fault plane (Fig.…”