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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Volume 11, issue 5/6
Nonlin. Processes Geophys., 11, 553-560, 2004
https://doi.org/10.5194/npg-11-553-2004
© Author(s) 2004. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

Special issue: Seismicity pattern dynamics

Nonlin. Processes Geophys., 11, 553-560, 2004
https://doi.org/10.5194/npg-11-553-2004
© Author(s) 2004. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  17 Nov 2004

17 Nov 2004

Earthquake statistics in a Block Slider Model and a fully dynamic Fault Model

D. Weatherley and S. Abe D. Weatherley and S. Abe
  • ACcESS, The University of Queensland, Brisbane, Australia

Abstract. We examine the event statistics obtained from two differing simplified models for earthquake faults. The first model is a reproduction of the Block-Slider model of Carlson et al. (1991), a model often employed in seismicity studies. The second model is an elastodynamic fault model based upon the Lattice Solid Model (LSM) of Mora and Place (1994). We performed simulations in which the fault length was varied in each model and generated synthetic catalogs of event sizes and times. From these catalogs, we constructed interval event size distributions and inter-event time distributions. The larger, localised events in the Block-Slider model displayed the same scaling behaviour as events in the LSM however the distribution of inter-event times was markedly different. The analysis of both event size and inter-event time statistics is an effective method for comparative studies of differing simplified models for earthquake faults.

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