Abstract
The paper analyzes the data of manual ionograms processing of hourly measurements of the critical frequency foF2 of the F2 ionospheric layer at the Wakkanai ionospheric vertical sounding station (Japan) in a geomagnetically quiet environment before a series of earthquakes with magnitude M > 6.0, for which the station entered the earthquake preparation zone, in order to detect possible Ionospheric Disturbances Preceding Earthquakes (IDPE), and to determine their quantitative characteristics. Detected IDPE, in the opinion of the authors, can be related to the processes of preparation of the corresponding earthquakes, i.e., to be Ionospheric Precursors of Earthquakes (IPE).
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Original Russian Text © S.A. Pulinets, A.D. Legen’ka, V.V. Hegai, V.P. Kim, L.P. Korsunova, 2018, published in Geomagnetizm i Aeronomiya, 2018, Vol. 58, No. 5, pp. 713–719.
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Pulinets, S.A., Legen’ka, A.D., Hegai, V.V. et al. Ionosphere Disturbances Preceding Earthquakes according to the Data of Ground Based Station of the Vertical Ionospheric Sounding Wakkanai. Geomagn. Aeron. 58, 686–692 (2018). https://doi.org/10.1134/S0016793218050110
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DOI: https://doi.org/10.1134/S0016793218050110