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Heterogeneity in a self-organized critical earthquake model

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Steacy, SJ, McCloskey, J, Bean, CJ and Ren, JW (1996) Heterogeneity in a self-organized critical earthquake model. GEOPHYSICAL RESEARCH LETTERS, 23 (4). pp. 383-386. [Journal article]

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Abstract

Earthquake dynamics are believed to exhibit self-organized criticality. This belief results from the power-law magnitude frequency distributions of earthquake catalogues, distributions which are accurately reproduced by cellular automata, and from the occurrence of triggered earthquakes. This paper examines the effects of heterogeneity on self-organized criticality in a two-dimensional cellular automaton. The strength heterogeneity is distributed fractally; stress is incremented uniformly. The model produces power-law magnitude frequency distributions. For fractal dimensions above 1.9, the slope of the power-law decreases with increasing fractal dimension. The slope increases weakly with the range of heterogeneity.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Research Institutes and Groups:Environmental Sciences Research Institute
Environmental Sciences Research Institute > Geophysics
ID Code:148
Deposited By:Professor Sandy Steacy
Deposited On:05 Nov 2009 13:46
Last Modified:22 Jun 2011 15:26

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