Intercluster Correlation in Seismicity

Details Intercluster Correlation in Seismicity Intercluster Correlation in Seismicity

2003-07-29

arxiv.org/abs/physics/0307134v1

Phys. Rev. Lett. Lett. 92, 129801 (2004)

Physics

Geophysics

Comment on Mega et al., Phys. Rev. Lett. 90. 188501 (2003) (cond-mat/0212529)

Scientific paper

10.1103/PhysRevLett.92.129801

Mega et al.(cond-mat/0212529) proposed to use the ``diffusion entropy'' (DE) method to demonstrate that the distribution of time intervals between a large earthquake (the mainshock of a given seismic sequence) and the next one does not obey Poisson statistics. We have performed synthetic tests which show that the DE is unable to detect correlations between clusters, thus negating the claimed possibility of detecting an intercluster correlation. We also show that the LR model, proposed by Mega et al. to reproduce inter-cluster correlation, is insufficient to account for the correlation observed in the data.

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