Statistical Tests for Scaling in the Inter-Event Times of Earthquakes in California

Details Statistical Tests for Scaling in the Inter-Event Times of Earthquakes in California Statistical Tests for Scaling in the Inter-Event Times of Earthquakes in California

2009-09-30

arxiv.org/abs/0910.0055v1

Physics

Geophysics

proceedings of Erice conference, 2008

Scientific paper

We explore in depth the validity of a recently proposed scaling law for earthquake interevent time distributions in the case of the Southern California, using the waveform cross-correlation catalog of Shearer et al. Two statistical tests are used: on the one hand, the standard two-sample Kolmogorov-Smirnov test is in agreement with the scaling of the distributions. On the other hand, the one-sample Kolmogorov-Smirnov statistic complemented with Monte Carlo simulation of the inter-event times, as done by Clauset et al., supports the validity of the gamma distribution as a simple model of the scaling function appearing on the scaling law, for rescaled inter-event times above 0.01, except for the largest data set (magnitude greater than 2). A discussion of these results is provided.

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