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Turbulencelike behavior of seismic time series

Manshour, P ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1103/PhysRevLett.102.014101
  3. Publisher: 2009
  4. Abstract:
  5. We report on a stochastic analysis of Earth's vertical velocity time series by using methods originally developed for complex hierarchical systems and, in particular, for turbulent flows. Analysis of the fluctuations of the detrended increments of the series reveals a pronounced transition in their probability density function from Gaussian to non-Gaussian. The transition occurs 5-10 hours prior to a moderate or large earthquake, hence representing a new and reliable precursor for detecting such earthquakes. © 2009 The American Physical Society
  6. Keywords:
  7. Earthquakes ; Hierarchical systems ; Probability density function ; Seismology ; Stochastic systems ; Time series ; Trellis codes ; Turbulence ; Gaussian ; Probability densities ; Vertical velocities ; Time series analysis
  8. Source: Physical Review Letters ; Volume 102, Issue 1 , 2009 ; 00319007 (ISSN)
  9. URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.102.014101