Variations of the amplitude of lighting electromagnetic signals passing over epicenters of deep-focus earthquakes

Vyacheslav V. Argunov; Viktor A. Mullayarov

doi:10.1117/12.2204877

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19 November 2015 Variations of the amplitude of lighting electromagnetic signals passing over epicenters of deep-focus earthquakes

Vyacheslav V. Argunov; Viktor A. Mullayarov

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Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 96805J (2015) https://doi.org/10.1117/12.2204877
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation

Abstract

Observation of low-frequency radio signals may be used as a tool of remote monitoring of seismic disturbances in the lower ionosphere. In the case of using a low frequency radio signal the most informative parameter is a signal phase. When using natural low-frequency radio emissions - electromagnetic signals of lightning discharges (atmospherics), the variation of the signal amplitude is analyzed. For strong (magnitude greater than 5) and not deep-focus (focal depth is less than 50 km) earthquakes it is found that the effects of earthquakes and their precursors in the signals of atmospherics appeared in the form of increasing amplitude, whose duration is generally a few hours. In this work peculiar properties of the effects of manifestations in the signals of atmospherics of deeper earthquakes are considered on the example of the events in the Malaysian-Indonesian region.

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Vyacheslav V. Argunov and Viktor A. Mullayarov "Variations of the amplitude of lighting electromagnetic signals passing over epicenters of deep-focus earthquakes ", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96805J (19 November 2015); https://doi.org/10.1117/12.2204877

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