Phase response curves for models of earthquake fault dynamics
| Autor: | Franović, Igor, Kostić, Srđan, Perc, Matjaz, Klinshov, Vladimir, Nekorkin, Vladimir, Kurths, Jürgen |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Chaos 26 (2016) 063105 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.4953471 |
| Popis: | We systematically study effects of external perturbations on models describing earthquake fault dynamics. The latter are based on the framework of the Burridge-Knopoff spring-block system, including the cases of a simple mono-block fault, as well as the paradigmatic complex faults made up of two identical or distinct blocks. The blocks exhibit relaxation oscillations, which are representative for the stick-slip behavior typical for earthquake dynamics. Our analysis is carried out by determining the phase response curves of first and second order. For a mono-block fault, we consider the impact of a single and two successive pulse perturbations, further demonstrating how the profile of phase response curves depends on the fault parameters. For a homogeneous two-block fault, our focus is on the scenario where each of the blocks is influenced by a single pulse, whereas for heterogeneous faults, we analyze how the response of the system depends on whether the stimulus is applied to the block having a shorter or a longer oscillation period. Comment: 13 two-column pages, 9 figures; accepted for publication in Chaos |
| Databáze: | arXiv |
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