Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017
Abstract Strong explosive eruptions of volcanoes throw out mixtures of gases and ash from high-pressure underground reservoirs. Investigating these subsurface reservoirs may help to forecast and characterize an eruption. In this study, we compare seismic tomography results with remote sensing and pe...
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Online Access: | http://dx.doi.org/10.1038/s41598-021-81498-9 http://www.nature.com/articles/s41598-021-81498-9.pdf http://www.nature.com/articles/s41598-021-81498-9 |
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crspringernat:10.1038/s41598-021-81498-9 2023-05-15T16:59:18+02:00 Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017 Koulakov, Ivan Plechov, Pavel Mania, René Walter, Thomas R. Smirnov, Sergey Z. Abkadyrov, Ilyas Jakovlev, Andrey Davydova, Vesta Senyukov, Sergey Bushenkova, Natalia Novgorodova, Angelika Stupina, Tatyana Droznina, Svetlana Ya. Russian Science Foundation Russian Foundation for Basic Research 2021 http://dx.doi.org/10.1038/s41598-021-81498-9 http://www.nature.com/articles/s41598-021-81498-9.pdf http://www.nature.com/articles/s41598-021-81498-9 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-81498-9 2022-01-04T11:44:32Z Abstract Strong explosive eruptions of volcanoes throw out mixtures of gases and ash from high-pressure underground reservoirs. Investigating these subsurface reservoirs may help to forecast and characterize an eruption. In this study, we compare seismic tomography results with remote sensing and petrology data to identify deep and subaerial manifestations of pre-eruptive processes at Bezymianny volcano in Kamchatka shortly before its violent explosion on December 20, 2017. Based on camera networks we identify precursory rockfalls, and based on satellite radar data we find pre-eruptive summit inflation. Our seismic network recorded the P and S wave data from over 500 local earthquakes used to invert for a 3D seismic velocity distribution beneath Bezymianny illuminating its eruptive state days before the eruption. The derived tomography model, in conjunction with the presence of the high-temperature-stable SiO 2 polymorph Tridymite in juvenile rock samples , allowed us to infer the coexistence of magma and gas reservoirs revealed as anomalies of low (1.5) and high (2.0) Vp/Vs ratios, respectively, located at depths of 2–3 km and only 2 km apart. The reservoirs both control the current eruptive activity: while the magma reservoir is responsible for episodic dome growth and lava flow emplacements, the spatially separated gas reservoir may control short but powerful explosive eruptions of Bezymianny. Article in Journal/Newspaper Kamchatka Springer Nature (via Crossref) Scientific Reports 11 1 |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary Koulakov, Ivan Plechov, Pavel Mania, René Walter, Thomas R. Smirnov, Sergey Z. Abkadyrov, Ilyas Jakovlev, Andrey Davydova, Vesta Senyukov, Sergey Bushenkova, Natalia Novgorodova, Angelika Stupina, Tatyana Droznina, Svetlana Ya. Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017 |
topic_facet |
Multidisciplinary |
description |
Abstract Strong explosive eruptions of volcanoes throw out mixtures of gases and ash from high-pressure underground reservoirs. Investigating these subsurface reservoirs may help to forecast and characterize an eruption. In this study, we compare seismic tomography results with remote sensing and petrology data to identify deep and subaerial manifestations of pre-eruptive processes at Bezymianny volcano in Kamchatka shortly before its violent explosion on December 20, 2017. Based on camera networks we identify precursory rockfalls, and based on satellite radar data we find pre-eruptive summit inflation. Our seismic network recorded the P and S wave data from over 500 local earthquakes used to invert for a 3D seismic velocity distribution beneath Bezymianny illuminating its eruptive state days before the eruption. The derived tomography model, in conjunction with the presence of the high-temperature-stable SiO 2 polymorph Tridymite in juvenile rock samples , allowed us to infer the coexistence of magma and gas reservoirs revealed as anomalies of low (1.5) and high (2.0) Vp/Vs ratios, respectively, located at depths of 2–3 km and only 2 km apart. The reservoirs both control the current eruptive activity: while the magma reservoir is responsible for episodic dome growth and lava flow emplacements, the spatially separated gas reservoir may control short but powerful explosive eruptions of Bezymianny. |
author2 |
Russian Science Foundation Russian Foundation for Basic Research |
format |
Article in Journal/Newspaper |
author |
Koulakov, Ivan Plechov, Pavel Mania, René Walter, Thomas R. Smirnov, Sergey Z. Abkadyrov, Ilyas Jakovlev, Andrey Davydova, Vesta Senyukov, Sergey Bushenkova, Natalia Novgorodova, Angelika Stupina, Tatyana Droznina, Svetlana Ya. |
author_facet |
Koulakov, Ivan Plechov, Pavel Mania, René Walter, Thomas R. Smirnov, Sergey Z. Abkadyrov, Ilyas Jakovlev, Andrey Davydova, Vesta Senyukov, Sergey Bushenkova, Natalia Novgorodova, Angelika Stupina, Tatyana Droznina, Svetlana Ya. |
author_sort |
Koulakov, Ivan |
title |
Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017 |
title_short |
Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017 |
title_full |
Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017 |
title_fullStr |
Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017 |
title_full_unstemmed |
Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017 |
title_sort |
anatomy of the bezymianny volcano merely before an explosive eruption on 20.12.2017 |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-81498-9 http://www.nature.com/articles/s41598-021-81498-9.pdf http://www.nature.com/articles/s41598-021-81498-9 |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-81498-9 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766051536244310016 |