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On Geoseismic Noise and Helioseismic Oscillations

Authors
  • Guglielmi, A. V.1
  • Zotov, O. D.1, 2
  • 1 Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, 123242, Russia , Moscow (Russia)
  • 2 Geophysical Observatory “Borok,” Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Borok, Yaroslavl oblast, 152742, Russia , Borok (Russia)
Type
Published Article
Journal
Izvestiya, Physics of the Solid Earth
Publisher
Pleiades Publishing
Publication Date
Jul 01, 2021
Volume
57
Issue
4
Pages
567–572
Identifiers
DOI: 10.1134/S1069351321040054
Source
Springer Nature
Keywords
Disciplines
  • Discussions
License
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Abstract

Abstract—In their paper published in Izvestiya, Physics of the Solid Earth, G.A. Sobolev et al. (2020) discussed the results of their study. Firstly, it is noted that the most important element of the magnetic storm affecting seismicity is the Pc5 geomagnetic pulsations. In the context of magnetohydrodynamics, Pc5 are interpreted as standing Alfvén waves. It is perhaps the Alfvén waves that induce oscillations recorded by the authors of the cited paper. Secondly, it is hypothesized that the Pc5 spectrum is contributed by solar 5-min oscillations known in helioseismology. Thus, it is likely that there is yet another channel through which the Sun may affect the Earth and, inter alia, the Earth’s seismicity. Special focus is placed on the question of instrumental noise.

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