Articles | Volume 12, issue 4
Nat. Hazards Earth Syst. Sci., 12, 1009–1015, 2012
https://doi.org/10.5194/nhess-12-1009-2012
Nat. Hazards Earth Syst. Sci., 12, 1009–1015, 2012
https://doi.org/10.5194/nhess-12-1009-2012

Research article 16 Apr 2012

Research article | 16 Apr 2012

In connection with identification of VLF emissions before L'Aquila earthquake

M. K. Kachakhidze1, Z. A. Kereselidze2, N. K. Kachakhidze1, G. T. Ramishvili3, and V. J. Kukhianidze3 M. K. Kachakhidze et al.
  • 1St. Andrew The First-Called Georgian University of The Patriarchy of Georgia, Tbilisi, Georgia
  • 2Iv. Javakhishvili Tbilisi State University, M. Nodia Institute of Geophysics, Tbilisi, Georgia
  • 3Ilia State University, Tbilisi, Georgia

Abstract. The present paper deals with an attempt to check the theoretical model of self-generated seismo-electromagnetic oscillations of LAI system on the basis of retrospective data.

Application of the offered simple model enables one to explain qualitatively the mechanism of VLF electromagnetic emission initiated in the process of an earthquake preparation. Besides, the model enables us to associate telluric character geoelectric and geomagnetic perturbations incited by rock polarization and self-generated electromagnetic oscillations of lithosphere-atmosphere system.

L'Aquila earthquake taken as an example to isolate reliably the Earth VLF emission from the magnetospheric electromagnetic emission of the same frequency range, MHD criterion is offered together with geomagnetic activity indexes.

On the basis of the considered three earthquakes, according to the opinion of authors the model of self-generated seismo-electromagnetic oscillations of the LAI system will enable us to approach the problem of resolution of earthquake prediction with certain accuracy.

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