Abstract
The relationship between strong magnetic storms caused by X-class solar flares in solar cycles 23 and 24 and seismicity variations (seismic noise) is considered. We use data on the time dependences of seismic noise parameters (root-mean-square deviation (RMS)) recorded by stations of the KNET seismic network when monitoring the seismicity of the territory of the Bishkek geodynamic proving ground (Northern Tien Shan). Signs of the influence of a magnetic storm that occurred after strong solar flares on the seismic process are noted. It is shown that an increase in seismic noise after a super-strong solar flare on September 6, 2017, is caused by an earthquake in Mexico (September 8, 2017, M = 8.1), and the earthquake itself may have been triggered by the flare.
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ACKNOWLEDGMENTS
The author of the article is grateful to A.N. Mansurov for the software for plotting the RMS distribution of seismic noise with the overlay of data on solar flares and magnetic storms.
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This study was carried out under the State Task of the Schmidt Institute of Physics of the Earth, Russian Academy of Sciences.
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Translated by M. Chubarova
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Sycheva, N.A. Solar Flares, Strong Magnetic Storms, and Variations in the Level of Seismic Noise in the Northern Tien Shan. Izv. Atmos. Ocean. Phys. 58 (Suppl 1), S17–S32 (2022). https://doi.org/10.1134/S0001433822130102
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DOI: https://doi.org/10.1134/S0001433822130102