Scale-invariant statistics of period in directed earthquake network

Interdisciplinary Physics


The seismic data taken in California is mapped to a growing directed network. Then, statistics of period in the network, which implies that after how many earthquakes an event returns to the initial location, is studied. It is found that the period distribution obeys a power law, showing the fundamental difficulty of statistical estimate of period.


Spectroscopy Neural Network State Physics Complex System Nonlinear Dynamics 


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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Authors and Affiliations

  1. 1.Institute of Physics, University of TsukubaIbarakiJapan
  2. 2.College of Science and Technology, Nihon UniversityChibaJapan

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