Post-seismic stress relaxation with a linear transient rheology

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Valentina Cannelli
Daniele Melini
Antonio Piersanti

Abstract

We performed an analysis of post-seismic stress relaxation, taking into account generalized linear rheologies. We compared the stress field (and its derived functions) obtained with a classical Maxwell rheology with that obtained with a transient Burgers body. From a set of synthetic case studies, we have revealed quantitative and qualitative differences both in relaxation times and in local stress values when a transient rheology is introduced. As a practical application, we modeled the time evolution of the Coulomb failure function following the 2009 L'Aquila earthquake, and we show that a transient rheology can lead to non-monotonic time dependence.

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How to Cite
Cannelli, V., Melini, D. and Piersanti, A. (2010) “Post-seismic stress relaxation with a linear transient rheology”, Annals of Geophysics, 53(2), pp. 89–99. doi: 10.4401/ag-4642.
Section
Research Articles

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