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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Published in:Remote Sensing
Main Authors: René Mania, Thomas R. Walter, Marina Belousova, Alexander Belousov, Sergey L. Senyukov
Format: Text
Language:English
Published: Multidisciplinary Digital Publishing Institute 2019
Subjects:
Online Access:https://doi.org/10.3390/rs11111278
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spelling ftmdpi:oai:mdpi.com:/2072-4292/11/11/1278/ 2023-08-20T04:07:39+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 agris 2019-05-29 application/pdf https://doi.org/10.3390/rs11111278 EN eng Multidisciplinary Digital Publishing Institute Remote Sensing in Geology, Geomorphology and Hydrology https://dx.doi.org/10.3390/rs11111278 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 11; Issue 11; Pages: 1278 Bezymianny volcano deformation monitoring lava dome inflation SAR imaging radar pixel offsets Text 2019 ftmdpi https://doi.org/10.3390/rs11111278 2023-07-31T22:19:00Z 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. Text Kamchatka MDPI Open Access Publishing Dome The ENVELOPE(166.000,166.000,-85.367,-85.367) Remote Sensing 11 11 1278
institution Open Polar
collection MDPI Open Access Publishing
op_collection_id ftmdpi
language English
topic Bezymianny
volcano deformation
monitoring
lava dome
inflation
SAR imaging
radar pixel offsets
spellingShingle Bezymianny
volcano deformation
monitoring
lava dome
inflation
SAR imaging
radar pixel offsets
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
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 Text
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 Multidisciplinary Digital Publishing Institute
publishDate 2019
url https://doi.org/10.3390/rs11111278
op_coverage agris
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; Volume 11; Issue 11; Pages: 1278
op_relation Remote Sensing in Geology, Geomorphology and Hydrology
https://dx.doi.org/10.3390/rs11111278
op_rights https://creativecommons.org/licenses/by/4.0/
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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