This study used interferometric analysis of synthetic aperture radar images to measure postseismic surface deformation after the 2003 Bam, Iran earthquake and shows reversal of coseismic dilatancy in the shallow fault zone that causes subsidence of the surface. Such deformation spread through a fault zone volume may explain the observed shallow slip deficits for some strike-slip fault ruptures.
- Eric J. Fielding
- Paul R. Lundgren
- Gareth J. Funning