Heterogeneity in a self-organized critical earthquake model

SJ Steacy, J McCloskey, CJ Bean, JW Ren

    Research output: Contribution to journalArticle

    21 Citations (Scopus)

    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.
    LanguageEnglish
    Pages383-386
    JournalGeophysical Research Letters
    Volume23
    Issue number4
    Publication statusPublished - Feb 1996

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    frequency-magnitude distribution
    power law
    cellular automaton
    earthquake
    earthquake catalogue
    distribution
    effect

    Cite this

    Steacy, SJ., McCloskey, J., Bean, CJ., & Ren, JW. (1996). Heterogeneity in a self-organized critical earthquake model. Geophysical Research Letters, 23(4), 383-386.
    Steacy, SJ ; McCloskey, J ; Bean, CJ ; Ren, JW. / Heterogeneity in a self-organized critical earthquake model. In: Geophysical Research Letters. 1996 ; Vol. 23, No. 4. pp. 383-386.
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    Steacy, SJ, McCloskey, J, Bean, CJ & Ren, JW 1996, 'Heterogeneity in a self-organized critical earthquake model', Geophysical Research Letters, vol. 23, no. 4, pp. 383-386.

    Heterogeneity in a self-organized critical earthquake model. / Steacy, SJ; McCloskey, J; Bean, CJ; Ren, JW.

    In: Geophysical Research Letters, Vol. 23, No. 4, 02.1996, p. 383-386.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Heterogeneity in a self-organized critical earthquake model

    AU - Steacy, SJ

    AU - McCloskey, J

    AU - Bean, CJ

    AU - Ren, JW

    PY - 1996/2

    Y1 - 1996/2

    N2 - 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.

    AB - 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.

    M3 - Article

    VL - 23

    SP - 383

    EP - 386

    JO - Geophysical Research Letters

    T2 - Geophysical Research Letters

    JF - Geophysical Research Letters

    SN - 0094-8276

    IS - 4

    ER -

    Steacy SJ, McCloskey J, Bean CJ, Ren JW. Heterogeneity in a self-organized critical earthquake model. Geophysical Research Letters. 1996 Feb;23(4):383-386.