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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 10, issue 7 | Copyright
Nat. Hazards Earth Syst. Sci., 10, 1403-1409, 2010
https://doi.org/10.5194/nhess-10-1403-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

  01 Jul 2010

01 Jul 2010

Power law relationship between parameters of earthquakes and precursory electrical phenomena revisited II

E. Dologlou E. Dologlou
  • Solid State Section, Department of Physics, University of Athens, Panepistimiopolis, Zografos, 157 84 Athens, Greece

Abstract. The credibility of the power law relation, reported by Dologlou (2009) between the stress drop of an earthquake and the lead time of the preceded Seismic Electric Signal, SES, has been checked through additional new data from 9 June 2008 to 7 April 2010. Three earthquakes with Mw≥5.5 have been found in Greece during this period. A critical exponent α (e.g. 0.328) has been obtained which compares very well with the one reported (α=0.332) by Dologlou (2009). The stability of this exponent might imply that critical dynamic processes, of mechanical (earthquakes) and also of electromagnetic (SES) sense dominate the pre focal area when the SES signal of the impending earthquake is emitted.

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