Articles | Volume 25, issue 1
Nonlin. Processes Geophys., 25, 251–265, 2018
https://doi.org/10.5194/npg-25-251-2018
Nonlin. Processes Geophys., 25, 251–265, 2018
https://doi.org/10.5194/npg-25-251-2018

Research article 29 Mar 2018

Research article | 29 Mar 2018

Complex interplay between stress perturbations and viscoelastic relaxation in a two-asperity fault model

Emanuele Lorenzano and Michele Dragoni

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AR by Emanuele Lorenzano on behalf of the Authors (17 Feb 2018)  Author's response    Manuscript
ED: Publish as is (06 Mar 2018) by Richard Gloaguen
AR by Emanuele Lorenzano on behalf of the Authors (07 Mar 2018)  Author's response    Manuscript
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Short summary
We devise a model to investigate the interplay between two common phenomena affecting the evolution of a seismogenic fault: the occurrence of earthquakes on neighbouring faults and the partial degree of anelasticity of rocks in the upper mantle, a feature that is often manifested by a post-seismic process known as viscoelastic relaxation. We show how this process dramatically complicates the way an earthquake may alter the magnitude and timing of a seismic event on the perturbed fault.