Exponential Distributions in a Mechanical Model for Earthquakes

Details Exponential Distributions in a Mechanical Model for Earthquakes Exponential Distributions in a Mechanical Model for Earthquakes

1996-02-20

arxiv.org/abs/cond-mat/9602108v1

Physics

Condensed Matter

11 pages, uuencoded (submitted to Phys. Rev. E)

Scientific paper

10.1103/PhysRevE.54.5925

We study statistical distributions in a mechanical model for an earthquake fault introduced by Burridge and Knopoff [R. Burridge and L. Knopoff, {\sl Bull. Seismol. Soc. Am.} {\bf 57}, 341 (1967)]. Our investigations on the size (moment), time duration and number of blocks involved in an event show that exponential distributions are found in a given range of the paramenter space. This occurs when the two kinds of springs present in the model have the same, or approximately the same, value for the elastic constants. Exponential distributions have also been seen recently in an experimental system to model earthquake-like dynamics [M. A. Rubio and J. Galeano, {\sl Phys. Rev. E} {\bf 50}, 1000 (1994)].

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