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Universality in the dynamical properties of seismic vibrations

Author

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  • Chatterjee, Soumya
  • Barat, P.
  • Mukherjee, Indranil

Abstract

We have studied the statistical properties of the observed magnitudes of seismic vibration data in discrete time in an attempt to understand the underlying complex dynamical processes. The observed magnitude data are taken from six different geographical locations. All possible magnitudes are considered in the analysis including catastrophic vibrations, foreshocks, aftershocks and commonplace daily vibrations. The probability distribution functions of these data sets obey scaling law and display a certain universality characteristic. To investigate the universality features in the observed data generated by a complex process, we applied Random Matrix Theory (RMT) in the framework of Gaussian Orthogonal Ensemble (GOE). For all these six places the observed data show a close fit with the predictions of RMT. This reinforces the idea of universality in the dynamical processes generating seismic vibrations.

Suggested Citation

  • Chatterjee, Soumya & Barat, P. & Mukherjee, Indranil, 2018. "Universality in the dynamical properties of seismic vibrations," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 492(C), pages 1352-1363.
  • Handle: RePEc:eee:phsmap:v:492:y:2018:i:c:p:1352-1363
    DOI: 10.1016/j.physa.2017.11.062
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