Simulation and properties of a non-homogeneous spring-block earthquake model with asperities

• Autorzy: Munoz-Diosdado A. , Rudolf-Navarro A. , Angulo-Brown F.
• Języki publikacji: EN

Abstrakty

EN

The spring-block model proposed by Olami, Feder and Christensen (OFC) has several properties that are similar to those observed in real seismicity. In this paper we propose a modification of the original model in order to take into account that in a real fault there are several regions with different properties (non-homogeneity). We define regions in the network that is reminiscent of the real seismic fault, with different sizes and elastic parameter values. We obtain the Gutenberg-Richter law for the synthetic earthquake distributions of magnitude and the stair-shaped plots for the cumulative seismicity. Again, as in the OFC-homogeneous case, we obtain the stability for the cumulative seismicity stair-shaped graphs in the long-term situation; this means that the straight line slopes that are superior bounds of the staircases have a behavior akin to the homogeneous case. We show that with this non-homogeneous OFC model it is possible to include the asperity concept to describe high-stress zones in the fault.

Słowa kluczowe

EN

earthquake; faulting; cellular automata; OFC model

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2012
• Tom: Vol. 60, no. 3
• Strony: 740--757
• Opis fizyczny: Bibliogr. 40 poz.

Twórcy

autor

Munoz-Diosdado A.

autor

Rudolf-Navarro A.

autor

Angulo-Brown F.

• Basic Sciences Department, Unidad Profesional Interdisciplinaria de Biotecnologia, Instituto Politecnico Nacional, Mexico D.F, Mexico,

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