Deformations and Morphology Changes Associated with the 2016–2017 Eruption Sequence at Bezymianny Volcano, Kamchatka
Lava domes grow by extrusions and intrusions of viscous magma often initiating from a central volcanic vent, and they are frequently defining the source region of hazardous explosive eruptions and pyroclastic density currents. Thus, close monitoring of dome building processes is crucial, but often l...
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ftdoajarticles:oai:doaj.org/article:1e27b9c3166244d3822390f209a193bd 2023-05-15T16:58:59+02:00 Deformations and Morphology Changes Associated with the 2016–2017 Eruption Sequence at Bezymianny Volcano, Kamchatka René Mania Thomas R. Walter Marina Belousova Alexander Belousov Sergey L. Senyukov 2019-05-01T00:00:00Z https://doi.org/10.3390/rs11111278 https://doaj.org/article/1e27b9c3166244d3822390f209a193bd EN eng MDPI AG https://www.mdpi.com/2072-4292/11/11/1278 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11111278 https://doaj.org/article/1e27b9c3166244d3822390f209a193bd Remote Sensing, Vol 11, Iss 11, p 1278 (2019) Bezymianny volcano deformation monitoring lava dome inflation SAR imaging radar pixel offsets Science Q article 2019 ftdoajarticles https://doi.org/10.3390/rs11111278 2022-12-31T11:06:39Z Lava domes grow by extrusions and intrusions of viscous magma often initiating from a central volcanic vent, and they are frequently defining the source region of hazardous explosive eruptions and pyroclastic density currents. Thus, close monitoring of dome building processes is crucial, but often limited to low data resolution, hazardous access, and poor visibility. Here, we investigated the 2016−2017 eruptive sequence of the dome building Bezymianny volcano, Kamchatka, with spot-mode TerraSAR-X acquisitions, and complement the analysis with webcam imagery and seismic data. Our results reveal clear morphometric changes preceding eruptions that are associated with intrusions and extrusions. Pixel offset measurements show >7 months of precursory plug extrusion, being locally defined and exceeding 30 m of deformation, chiefly without detected seismicity. After a short explosion, three months of lava dome evolution were characterised by extrusions and intrusion. Our data suggest that the growth mechanisms were significantly governed by magma supply rate and shallow upper conduit solidification that deflected magmatic intrusions into the uppermost parts of the dome. The integrated approach contributes significantly to a better understanding of precursory activity and complex growth interactions at dome building volcanoes, and shows that intrusive and extrusive growth is acting in chorus at Bezymianny volcano. Article in Journal/Newspaper Kamchatka Directory of Open Access Journals: DOAJ Articles Dome The ENVELOPE(166.000,166.000,-85.367,-85.367) Remote Sensing 11 11 1278 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Bezymianny volcano deformation monitoring lava dome inflation SAR imaging radar pixel offsets Science Q |
spellingShingle |
Bezymianny volcano deformation monitoring lava dome inflation SAR imaging radar pixel offsets Science Q René Mania Thomas R. Walter Marina Belousova Alexander Belousov Sergey L. Senyukov Deformations and Morphology Changes Associated with the 2016–2017 Eruption Sequence at Bezymianny Volcano, Kamchatka |
topic_facet |
Bezymianny volcano deformation monitoring lava dome inflation SAR imaging radar pixel offsets Science Q |
description |
Lava domes grow by extrusions and intrusions of viscous magma often initiating from a central volcanic vent, and they are frequently defining the source region of hazardous explosive eruptions and pyroclastic density currents. Thus, close monitoring of dome building processes is crucial, but often limited to low data resolution, hazardous access, and poor visibility. Here, we investigated the 2016−2017 eruptive sequence of the dome building Bezymianny volcano, Kamchatka, with spot-mode TerraSAR-X acquisitions, and complement the analysis with webcam imagery and seismic data. Our results reveal clear morphometric changes preceding eruptions that are associated with intrusions and extrusions. Pixel offset measurements show >7 months of precursory plug extrusion, being locally defined and exceeding 30 m of deformation, chiefly without detected seismicity. After a short explosion, three months of lava dome evolution were characterised by extrusions and intrusion. Our data suggest that the growth mechanisms were significantly governed by magma supply rate and shallow upper conduit solidification that deflected magmatic intrusions into the uppermost parts of the dome. The integrated approach contributes significantly to a better understanding of precursory activity and complex growth interactions at dome building volcanoes, and shows that intrusive and extrusive growth is acting in chorus at Bezymianny volcano. |
format |
Article in Journal/Newspaper |
author |
René Mania Thomas R. Walter Marina Belousova Alexander Belousov Sergey L. Senyukov |
author_facet |
René Mania Thomas R. Walter Marina Belousova Alexander Belousov Sergey L. Senyukov |
author_sort |
René Mania |
title |
Deformations and Morphology Changes Associated with the 2016–2017 Eruption Sequence at Bezymianny Volcano, Kamchatka |
title_short |
Deformations and Morphology Changes Associated with the 2016–2017 Eruption Sequence at Bezymianny Volcano, Kamchatka |
title_full |
Deformations and Morphology Changes Associated with the 2016–2017 Eruption Sequence at Bezymianny Volcano, Kamchatka |
title_fullStr |
Deformations and Morphology Changes Associated with the 2016–2017 Eruption Sequence at Bezymianny Volcano, Kamchatka |
title_full_unstemmed |
Deformations and Morphology Changes Associated with the 2016–2017 Eruption Sequence at Bezymianny Volcano, Kamchatka |
title_sort |
deformations and morphology changes associated with the 2016–2017 eruption sequence at bezymianny volcano, kamchatka |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/rs11111278 https://doaj.org/article/1e27b9c3166244d3822390f209a193bd |
long_lat |
ENVELOPE(166.000,166.000,-85.367,-85.367) |
geographic |
Dome The |
geographic_facet |
Dome The |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
Remote Sensing, Vol 11, Iss 11, p 1278 (2019) |
op_relation |
https://www.mdpi.com/2072-4292/11/11/1278 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11111278 https://doaj.org/article/1e27b9c3166244d3822390f209a193bd |
op_doi |
https://doi.org/10.3390/rs11111278 |
container_title |
Remote Sensing |
container_volume |
11 |
container_issue |
11 |
container_start_page |
1278 |
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1766051115788402688 |