Phase response curves for models of earthquake fault dynamics

Autor(es)

Franovic, Igor ^[1] ; Kostic, Srdjan ^[2] ; Perc, Matjaz ^{[3, 4]} ; Klinshov, Vladimir ^[5] ; Nekorkin, Vladimir ^{[5, 6]} ; Kurths, Juergen ^{[7, 8, 5]}

Afiliação do(s) autor(es)

^[1] Univ Belgrade, Inst Phys Belgrade, Comp Sci Lab, Pregrevica 118, Belgrade 11080 - Serbia

^[2] Inst Dev Water Resources Jaroslav Cerni, Jaroslava Cernog 80, Belgrade 11226 - Serbia

^[3] Univ Maribor, Fac Nat Sci & Math, Koroska Cesta 160, SI-2000 Maribor - Slovenia

^[4] Univ Maribor, CAMTP Ctr Appl Math & Theoret Phys, Krekova 2, SI-2000 Maribor - Slovenia

^[5] Russian Acad Sci, Inst Appl Phys, 46 Ulyanov St, Nizhnii Novgorod 603950 - Russia

^[6] Univ Nizhny Novgorod, 23 Prospekt Gagarina, Nizhnii Novgorod 603950 - Russia

^[7] Potsdam Inst Climate Impact Res, D-14412 Potsdam - Germany

^[8] Humboldt Univ, Inst Phys, D-12489 Berlin - Germany

• Tipo de documento: Artigo Científico
• Fonte: Chaos; v. 26, n. 6 JUN 2016.
• Citações Web of Science: 3

Resumo

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. Published by AIP Publishing. (AU)

• Processo FAPESP: 11/50151-0 - Fenômenos dinâmicos em redes complexas: fundamentos e aplicações
• Beneficiário: Elbert Einstein Nehrer Macau
• Linha de fomento: Auxílio à Pesquisa - Temático