VLF/LF signal studies of the ionospheric response to strong seismic activity in the Far Eastern region combining the DEMETER and ground-based observations

A. Rozhnoi (1) , M. Solovieva (1) , Michel Parrot (2) , M. Hayakawa (3) , P.-F. Biagi (4) , K. Schwingenschuh (5) , V. Fedun (6)

1 IPE - Schmidt United Institute of Physics of the Earth [Moscow]
2 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
3 UEC - University of Electro-Communications [Tokyo]
4 Department of Physics [Bari]
5 IWF - Space Research Institute of Austrian Academy of Sciences
6 University of Sheffield [Sheffield]

The paper presents the results of a joint analysis of ground-based and satellite observations of very low-frequency and low-frequency (VLF/LF) signals during periods of strong seismic activity in the region of Kuril Islands and Japan in 2004–2010. Ground and satellite data was processed using a method based on the difference between the real signal in nighttime and that of a model. The results of the analysis show a good correlation between ground-based and satellite data for several cases of strong (M ⩾ 6.8) earthquakes.

Keywords: Electromagnetic signals; The ionosphere; Satellite observations; Earthquake precursors

Domains: Sciences of the Universe [physics]

A. Rozhnoi, M. Solovieva, Michel Parrot, M. Hayakawa, P.-F. Biagi, et al.. VLF/LF signal studies of the ionospheric response to strong seismic activity in the Far Eastern region combining the DEMETER and ground-based observations. Physics and Chemistry of the Earth, Parts A/B/C, 2015, 85-86, pp.141-149. ⟨10.1016/j.pce.2015.02.005⟩. ⟨insu-01182123⟩