Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/8719
Authors: | Bizzarri, A.* Crupi, P.* |
Title: | Is the initial thermal state of a fault relevant to its dynamic behavior? | Journal: | Bulletin of the Seismological Society of America | Series/Report no.: | 3/103 (2013) | Publisher: | Seismological Society of America | Issue Date: | Jun-2013 | DOI: | 10.1785/0120120279 | URL: | http://www.bo.ingv.it/~bizzarri | Keywords: | seismic cycle earthquake recurrence |
Subject Classification: | 04. Solid Earth::04.06. Seismology::04.06.02. Earthquake interactions and probability | Abstract: | The prediction of impending earthquakes undoubtedly remains one of the most pursued goals of modern seismology. Within the framework of a deterministic description of earthquake faulting, the initial state of the fault system and the choice of the governing model describing its rheological behavior play a fundamental role in the description of the earthquake recurrence. In classical models of faulting, this initial state is basically described by the initial shear-stress distribution (prior to the next earthquake event) and by the initial sliding velocity. In this paper, by assuming a rate-, state-, and temperature-dependent rheology, we investigate whether the initial thermal state of the fault can also have a significant role in earthquake dynamics. Our numerical results clearly demonstrate that the initial temperature greatly influences the cosesimic slip (and thus the earthquake magnitude), the released stress (and thus the radiated energy), and the interevent time (i.e., the earthquake recurrence). Despite the remaining issues on the concept of earthquake cyclicity, our results can contribute to the lively debate on the deterministic hazard assessment, illuminating that the temperature field also plays a fundamental role in earthquake dynamics, not only because it controls possible phase changes and the chemical environment of the fault zone, but also because it affects the response of a brittle fault and earthquake cycles. |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
P_038_Bizzarri-Crupi_2013.pdf | 1.71 MB | Adobe PDF |
WEB OF SCIENCETM
Citations
5
checked on Feb 10, 2021
Page view(s) 50
268
checked on Mar 27, 2024
Download(s)
37
checked on Mar 27, 2024