Aftershocks in Modern Perspectives: Complex Earthquake Network, Aging, and Non-Markovianity

Details Aftershocks in Modern Perspectives: Complex Earthquake Network, Aging, and Non-Markovianity Aftershocks in Modern Perspectives: Complex Earthquake Network, Aging, and Non-Markovianity

2012-02-20

arxiv.org/abs/1202.4394v1

Physics

Geophysics

28 pages, 6 figures and 1 table. Acta Geophysica, in press

Scientific paper

The phenomenon of aftershocks is studied in view of science of complexity. In particular, three different concepts are examined: (i) the complex-network representation of seismicity, (ii) the event-event correlations, and (iii) the effects of long-range memory. Regarding (i), it is shown the clustering coefficient of the complex earthquake network exhibits a peculiar behavior at and after main shocks. Regarding (ii), it is found that aftershocks experience aging, and the associated scaling holds. And regarding (iii), the scaling relation to be satisfied by a class of singular Markovian processes is violated, implying the existence of the long-range memory in processes of aftershocks.

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