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Relation between seismicity and pre-earthquake electromagnetic emissions in terms of energy, information and entropy content

Authors
  • Potirakis, S. M.
  • Minadakis, G.
  • Eftaxias, K.
Type
Published Article
Publication Date
Aug 13, 2013
Submission Date
Dec 24, 2011
Identifiers
DOI: 10.5194/nhess-12-1179-2012
Source
arXiv
License
Yellow
External links

Abstract

In this paper we show, in terms of Fisher information and approximate entropy, that the two strong impulsive kHz electromagnetic (EM) bursts recorder prior to the Athens EQ (7 September 1999, magnitude 5.9) present compatibility to the radar interferometry data and the seismic data analysis, which indicate that two fault segments were activated during Athens EQ. The calculated Fisher information and approximate entropy content ratios closely follow the radar interferometry result that the main fault segment was responsible for 80% of the total energy released, while the secondary fault segment for the remaining 20%. This experimental finding, which appears for the first time in the literature, further enhances the hypothesis for the seismogenic origin of the analyzed kHz EM bursts.

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