Statistical properties of Olami-Feder-Christensen model on Barabasi-Albert scale-free network

Hiroki Tanaka () and Takahiro Hatano
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Hiroki Tanaka: Earthquake Research Institute, University of Tokyo
Takahiro Hatano: Earthquake Research Institute, University of Tokyo

The European Physical Journal B: Condensed Matter and Complex Systems, 2017, vol. 90, issue 12, 1-12

Abstract: Abstract The Olami-Feder-Christensen model on the Barabasi-Albert type scale-free network is investigated in the context of statistical seismology. This simple model may be regarded as the interacting faults obeying power-law size distribution under two assumptions: (i) each node represents a distinct fault; (ii) the degree of a node is proportional to the fault size and the energy accumulated around it. Depending on the strength of an interaction, the toppling events exhibit temporal clustering as is ubiquitously observed for natural earthquakes. Defining a geometrical parameter that characterizes the heterogeneity of the energy stored in the nodes, we show that aftershocks are characterized as a process of regaining the heterogeneity that is lost by the main shock. The heterogeneity is not significantly altered during the loading process and foreshocks.

Keywords: Statistical; and; Nonlinear; Physics (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1140/epjb/e2017-80295-0

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