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Peculiarities of the Seismic Activation of Avacha Volcano in Late 2019

  • SEISMOLOGY
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Abstract

Seismic activation of Avacha volcano was observed from late October to late December 2019, when six swarm sequences of volcanic earthquakes of various types occurred in its edifice. In the swarm sequences, 15 plane-oriented clusters were identified, and the characteristics of their seismogenic areas were determined. A comprehensive analysis of seismic events indicates that the activation of Avacha volcano at the end of 2019 occurred because of the interaction of meteoric waters with magma bodies, which formed during the effusive eruption of 1991 within the volcanic edifice.

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Notes

  1. For more details, see http://geoportal.kscnet.ru/volcanoes/volc?name=Avachinsky.

  2. Hereinafter, altitudes are relative to sea level.

  3. P. A. Kiryukhin and A. V. Kiryukhin, Software Registration Certificate no. 2016612168 of June 21, 2016.

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Funding

This work was conducted in the framework of a State Assignment (project nos. AAAA-A19-119031590060-3 and AAAA-A17-117050210046-7); the data used in the work were obtained with large-scale research facilities “Seismic infrasound array for monitoring Arctic cryolitozone and continuous seismic monitoring of the Russian Federation, neighbouring territories and the world” (https://ckp-rf.ru/usu/507436/, http://www.gsras.ru/unu/).

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Authors and Affiliations

  1. Kamchatka Branch, Federal Research Center Geophysical Service, Russian Academy of Sciences, 683006, Petropavlovsk-Kamchatsky, Russia

    P. P. Firstov & A. A. Shakirova

  2. Institute of Volcanology and Seismology, Far East Branch, Russian Academy of Sciences, 683006, Petropavlovsk-Kamchatsky, Russia

    A. P. Maksimov & E. V. Chernykh

Authors
  1. P. P. Firstov
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  2. A. A. Shakirova
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  3. A. P. Maksimov
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  4. E. V. Chernykh
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Corresponding author

Correspondence to A. A. Shakirova.

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Translated by N. Astafiev

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Firstov, P.P., Shakirova, A.A., Maksimov, A.P. et al. Peculiarities of the Seismic Activation of Avacha Volcano in Late 2019. Dokl. Earth Sc. 497, 323–327 (2021). https://doi.org/10.1134/S1028334X21040061

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  • DOI: https://doi.org/10.1134/S1028334X21040061

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