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| Titel |
Size-frequency relation of earthquakes in load-transfer models of fracture |
| VerfasserIn |
J. B. Gómez, D. Iñiguez, A. F. Pacheco |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 2, no. 3/4 ; Nr. 2, no. 3/4, S.131-135 |
| Datensatznummer |
250000248
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| Publikation (Nr.) |
 copernicus.org/npg-2-131-1995.pdf |
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| Zusammenfassung |
| Using Monte Carlo simulations of the process of breaking in arrays of
elements with load-transfer rules, we have obtained the size- frequency relation of the
avalanches occurring in 1- and 2-dimensional stochastic fracture models. The resulting
power-law behaviour resembles the Gutenberg-Richter law for the relation between the size
(liberated energy) of earthquakes and their number frequency. The value of the power law
exponent is calculated as a function of the degree of stress dissipation present in the
model. The degree of dissipation is implemented in a straightforward and simple way by
assuming that only a fraction of the stress is transferred in each breaking event. The
models are robust with respect to the degree of dissipation and we observe a consistent
power-law behaviour for a broad range of dissipation values, both in ID and 2D. The value
of the power-law exponent is similar to the phenomenological b- value (0.8
< b < 1.1) for
intermediate magnitude earthquakes. |
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