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Postseismic deformation following the 1991 Racha, Georgia earthquake

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]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Geophysical Research Letters
DOI: 10.1029/2006GL028477


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