On Earthquake Recurrence Time Distribution and Its Scaling Law

Abstract eng:
The robustness of earthquake recurrence time distribution scaling in a given space-time window is studied in details, using earthquake catalogs from different part of the world (Southern California, Japan and Turkey). The quality of the available catalogs is examined taking into account the completeness of the magnitude and the effective starting time of aftershock sequences. The adjustment to a doubly power law of the distribution scaled with the mean recurrence time reveals that short and long time range power law exponents obey a simple equation, with parameters linked to the recurrence time probability at the distribution tails. The derived equation shows that, big events occurring after seismically quiescent periods and foreshocks preceding large events are linked in a single quantified cause-effect structure.

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