Variations of impulsive  natural VLF signals passing over epicenters of earthquakes by observations in Yakutsk

Vyacheslav V. Argunov; Viktor A. Mullayarov

doi:10.1117/12.2075120

25 November 2014 Variations of impulsive natural VLF signals passing over epicenters of earthquakes by observations in Yakutsk

Vyacheslav V. Argunov, Viktor A. Mullayarov

Author Affiliations +

Proceedings Volume 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 92924J (2014) https://doi.org/10.1117/12.2075120
Event: 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2014, Novosibirsk, Russian Federation

Abstract

For distant monitoring of disturbances in the lower ionosphere signals of low-frequency radio stations are often used. In particular, the method is used for investigation of ionospheric responses (disturbances) caused by seismic activity. As a variant of this method for the detection of seismic disturbances in the ionosphere one can use natural radio signals - an electromagnetic radiation of thunderstorm discharges (atmospherics). The examples of the effects of three earthquakes in the variations of average amplitude of atmospherics received in Yakutsk (φ = 62.1° N, λ = 129.7° E) were considered. The increase of signal amplitude for some days before the events can be considered as a precursor. It allows to used observations of impulse electromagnetic thunderstorm signals as one of possible means of distant monitoring of strong earthquakes.

Citation Download Citation

Vyacheslav V. Argunov and Viktor A. Mullayarov "Variations of impulsive natural VLF signals passing over epicenters of earthquakes by observations in Yakutsk", Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 92924J (25 November 2014); https://doi.org/10.1117/12.2075120

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