A restricted Linked Stress Release Model (LSRM) for the Corinth gulf (Greece)

A restricted Linked Stress Release Model (LSRM) for the Corinth gulf (Greece) The earthquake occurrence in the Corinth Gulf (Greece) is modeled by means of the Linked Stress Release Model, which combines the gradual increase of the strain energy due to continuous tectonic loading and its sudden release when an event occurs. The modeling is based on the theory of stochastic point processes and it is determined by the conditional intensity function. The modeled time–dependent seismicity incorporates stress transfer and interactions among the major fault segments that belong either to the western or to the eastern part of the study area. Static stress changes caused by the coseismic slip of eight characteristic events that occurred during the instrumental era were calculated. Their perturbations reveal that earthquakes occurring in the eastern part provoke excitation in the western part while the events that occurred in the western part do not affect the seismicity of the eastern part. This result was taken into account and the values of the model parameters were constrained accordingly. The analysis is also performed on synthetic earthquake catalogs developed by an earthquake simulator algorithm that can replicate the seismic activity in the study area and yields to comparable results. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Tectonophysics Elsevier

A restricted Linked Stress Release Model (LSRM) for the Corinth gulf (Greece)

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0040-1951
eISSN
1879-3266
D.O.I.
10.1016/j.tecto.2017.12.011
Publisher site
See Article on Publisher Site

Abstract

The earthquake occurrence in the Corinth Gulf (Greece) is modeled by means of the Linked Stress Release Model, which combines the gradual increase of the strain energy due to continuous tectonic loading and its sudden release when an event occurs. The modeling is based on the theory of stochastic point processes and it is determined by the conditional intensity function. The modeled time–dependent seismicity incorporates stress transfer and interactions among the major fault segments that belong either to the western or to the eastern part of the study area. Static stress changes caused by the coseismic slip of eight characteristic events that occurred during the instrumental era were calculated. Their perturbations reveal that earthquakes occurring in the eastern part provoke excitation in the western part while the events that occurred in the western part do not affect the seismicity of the eastern part. This result was taken into account and the values of the model parameters were constrained accordingly. The analysis is also performed on synthetic earthquake catalogs developed by an earthquake simulator algorithm that can replicate the seismic activity in the study area and yields to comparable results.

Journal

TectonophysicsElsevier

Published: Jan 16, 2018

References

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