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Sudden drop of fractal dimension of electromagnetic emissions recorded prior to significant earthquake

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  • S. Potirakis
  • G. Minadakis
  • K. Eftaxias

Abstract

The variation of fractal dimension and entropy during a damage evolution process, especially approaching critical failure, has been recently investigated. A sudden drop of fractal dimension has been proposed as a quantitative indicator of damage localization or a likely precursor of an impending catastrophic failure. In this contribution, electromagnetic emissions recorded prior to significant earthquake are analysed to investigate whether they also present such sudden fractal dimension and entropy drops as the main catastrophic event is approaching. The pre-earthquake electromagnetic time series analysis results reveal a good agreement to the theoretically expected ones indicating that the critical fracture is approaching. Copyright Springer Science+Business Media B.V. 2012

Suggested Citation

  • S. Potirakis & G. Minadakis & K. Eftaxias, 2012. "Sudden drop of fractal dimension of electromagnetic emissions recorded prior to significant earthquake," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 64(1), pages 641-650, October.
    • Handle: RePEc:spr:nathaz:v:64:y:2012:i:1:p:641-650
    DOI: 10.1007/s11069-012-0262-x
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    References listed on IDEAS

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    1. Kalimeri, M. & Papadimitriou, C. & Balasis, G. & Eftaxias, K., 2008. "Dynamical complexity detection in pre-seismic emissions using nonadditive Tsallis entropy," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 387(5), pages 1161-1172.
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    Cited by:

    1. Potirakis, Stelios M. & Zitis, Pavlos I. & Eftaxias, Konstantinos, 2013. "Dynamical analogy between economical crisis and earthquake dynamics within the nonextensive statistical mechanics framework," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 392(13), pages 2940-2954.

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