Podgorski, J.; Hearn, E.; McClusky, Simon; Reilinger, Robert; Taymaz, Tuncay; Tan, O.; Prilepin, M.; Guseva, T.; Nadariya, M.
The 1991, Ms = 7.0 Racha earthquake is the largest ever recorded in the Caucasus Mountains. Approximately three months after this thrust-faulting earthquake, a GPS network was set up to measure postseismic surface deformation. We present an analysis of these data, which indicate accelerated postseismic motions at several nearfield sites. We model this deformation as either afterslip on the rupture surface or viscoelastic relaxation of the lower crust. We find that the postseismic motions are...[Show more]
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