Similarity of fluctuations in correlated systems: The case of seismicity

Details Similarity of fluctuations in correlated systems: The case of seismicity Similarity of fluctuations in correlated systems: The case of seismicity

2005-10-24

arxiv.org/abs/physics/0510213v1

Published in Phys. Rev. E 72, 041103 (2005)

Physics

Geophysics

5 pages, 9 figures

Scientific paper

10.1103/PhysRevE.72.041103

We report a similarity of fluctuations in equilibrium critical phenomena and non-equilibrium systems, which is based on the concept of natural time. The world-wide seismicity as well as that of San Andreas fault system and Japan are analyzed. An order parameter is chosen and its fluctuations relative to the standard deviation of the distribution are studied. We find that the scaled distributions fall on the same curve, which interestingly exhibits, over four orders of magnitude, features similar to those in several equilibrium critical phenomena (e.g., 2D Ising model) as well as in non-equilibrium systems (e.g., 3D turbulent flow).

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