Similarity of fluctuations in correlated systems: the case of seismicity.

  title={Similarity of fluctuations in correlated systems: the case of seismicity.},
  author={Panayiotis A. Varotsos and Nicholas V. Sarlis and Hishashi Tanaka and Efthimios Skordas},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={72 4 Pt 1},
We report a similarity of fluctuations in equilibrium critical phenomena and nonequilibrium systems, which is based on the concept of natural time. The worldwide seismicity as well as that of the 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… CONTINUE READING
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