A new approach to investigate the existence of patterns in geoelectrical signals related to seismicity of western Greece, using supervised pattern recognition

  • Authors:

  • Apostolos Ifantis;Vasilios Nikolaidis;George Economou

  • Affiliations:

  • Department of Electrical Engineering, Control System and Signal Processing Laboratory, Technological Educational Institute of Patras, Patras, Greece;Department of Electrical Engineering, Control System and Signal Processing Laboratory, Technological Educational Institute of Patras, Patras, Greece;Department of Physics, Electronics Laboratory, University of Patras, Patras, Greece

  • Venue:
  • ACMOS'06 Proceedings of the 8th WSEAS international conference on Automatic control, modeling & simulation
  • Year:
  • 2006

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Abstract

In this study, a supervised pattern recognition technique is used to examine Long Term Geoelectric Potential difference (LTGP) data recorded during the 1993-1997 period in Western Greece. It presents initial results from an attempt towards automated discovery of similarities between LTGP data recorded during periods of similar seismic activity. In particular, we investigate whether patterns exist in LTGP data recorded during time periods of significant seismic events with geographically adjacent earthquake epicenters. Signals recorded in such periods are grouped together and comparisons are made to properties of other groups. Certain interesting properties of signal groups are detected, indicating the existence of a possible correlation between the geoelectric signal structure and the epicenter location of earthquakes. An explanation of the above results is also provided.