Email this article The relationship between global volcanic activity and variations in the velocity of Earth's rotation
- Authors: Levin B.W.1,2, Sasorova E.V.2, Gurianov V.B.1, Yarmolyuk V.V.3
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Affiliations:
- Institute of Marine Geology and Geophysics, Far Eastern Branch of the Russian Academy of Sciences
- P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
- Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
- Issue: Vol 484, No 6 (2019)
- Pages: 729-733
- Section: Geology
- URL: https://journals.eco-vector.com/0869-5652/article/view/12888
- DOI: https://doi.org/10.31857/S0869-56524846729-733
- ID: 12888
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Abstract
Analysis of observations of the Earth's rotational velocity and volcanic activity of the planet from 1720 until 2015 suggests that higher volcanic activity temporally coincided with periods of decreased angular velocity of Earth's rotation (deceleration), and, vice versa, lower volcanic activity coincided with the periods of increased velocity of the Earth's rotation (acceleration). Our analysis employed the data from the catalog by the Smithsonian Institute, United States, in which each volcanic explosion had its own determined value of the Volcanic Explosivity Index (VEI). The total number of selected intensive eruptions with VEI > 4 was 160, including 25 eruptions with VEI > 5. At present (beginning from 2006), the Earth was entry in a deceleration phase and series of catastrophic eruptions reveals the tendency toward intensifying volcanic activity.
About the authors
B. W. Levin
Institute of Marine Geology and Geophysics, Far Eastern Branch of the Russian Academy of Sciences; P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Author for correspondence.
Email: levinbw@mail.ru
Corresponding Member of the RAS
Russian Federation, 1B, Nauka street, Yuzhno-Sakhalinsk, 693022; 36, Nakhimovskii prospect, Moscow, 117997E. V. Sasorova
P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences
Email: levinbw@mail.ru
Russian Federation, 36, Nakhimovskii prospect, Moscow, 117997
V. B. Gurianov
Institute of Marine Geology and Geophysics, Far Eastern Branch of the Russian Academy of Sciences
Email: levinbw@mail.ru
Russian Federation, 1B, Nauka street, Yuzhno-Sakhalinsk, 693022
V. V. Yarmolyuk
Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
Email: levinbw@mail.ru
Academician of the RAS
Russian Federation, 35, Staromonetny, Moscow, 119017References
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