Recurrence interval statistics of cellular automaton seismicity models

Weatherley, D (2006) Recurrence interval statistics of cellular automaton seismicity models. Pure And Applied Geophysics, 163 9: 1933-1947. doi:10.1007/s00024-006-0105-3


Author Weatherley, D
Title Recurrence interval statistics of cellular automaton seismicity models
Journal name Pure And Applied Geophysics   Check publisher's open access policy
ISSN 0033-4553
ISBN 3-7643-7991-X
Publication date 2006
Sub-type Article (original research)
DOI 10.1007/s00024-006-0105-3
Volume 163
Issue 9
Start page 1933
End page 1947
Total pages 15
Place of publication Basel
Publisher Birkhauser Verlag
Collection year 2006
Language eng
Subject C1
260206 Earthquake Seismology
780104 Earth sciences
Abstract The recurrence interval statistics for regional seismicity follows a universal distribution function, independent of the tectonic setting or average rate of activity (Corral, 2004). The universal function is a modified gamma distribution with power-law scaling of recurrence intervals shorter than the average rate of activity and exponential decay for larger intervals. We employ the method of Corral (2004) to examine the recurrence statistics of a range of cellular automaton earthquake models. The majority of models has an exponential distribution of recurrence intervals, the same as that of a Poisson process. One model, the Olami-Feder-Christensen automaton, has recurrence statistics consistent with regional seismicity for a certain range of the conservation parameter of that model. For conservation parameters in this range, the event size statistics are also consistent with regional seismicity. Models whose dynamics are dominated by characteristic earthquakes do not appear to display universality of recurrence statistics.
Keyword Geochemistry & Geophysics
Earthquakes
Recurrence Statistics
Cellular Automata
Self-organized Criticality
Evolution
Size
Simulation
Fault
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

 
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Created: Wed, 15 Aug 2007, 11:01:32 EST