Eruptions in the Northern Group of Volcanoes, in Kamchatka, during the Early 21st Century

The early 21st century saw increased eruption activity of major volcanoes in the Northern Group of Kamchatka, namely, Sheveluch, Klyuchevskoy, Bezymianny, and the Tolbachik Fissure Zone. The growth of an extrusive dome on Sheveluch andesitic volcano has occurred, with the dome reaching a height of 6...

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Bibliographic Details
Published in:Journal of volcanology and seismology 2020, Vol.14 (1), p.1-17
Main Authors: Ozerov, A. Yu, Girina, O. A., Zharinov, N. A., Belousov, A. B., Demyanchuk, Yu. V.
Format: Article
Language:English
Subjects:
21st century
Domes
Earth and Environmental Science
Earth Sciences
Eruptions
Geochemistry
Geology
Geophysics/Geodesy
Magma
Volcanic activity
Volcanic eruptions
Volcanoes
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Summary:The early 21st century saw increased eruption activity of major volcanoes in the Northern Group of Kamchatka, namely, Sheveluch, Klyuchevskoy, Bezymianny, and the Tolbachik Fissure Zone. The growth of an extrusive dome on Sheveluch andesitic volcano has occurred, with the dome reaching a height of 600 m after 38 years of nearly uninterrupted eruption activity. An 8-year period of relative quiet was followed by ten summit eruptions and two lateral vent openings on the Klyuchevskoy basaltic volcano. Explosive–effusive eruptions were observed nearly every year on the Bezymianny andesitic volcano. A 36-year quiet period gave way to a new eruption in the Tolbachik regional fissure zone.
ISSN:0742-0463
1819-7108
DOI:10.1134/S0742046320010054