The collapse of Bárðarbunga Caldera, Iceland
Lying below Vatnajökull ice cap in Iceland, Bárðarbunga stratovolcano began experiencing wholesale caldera collapse in 2014 August 16, one of the largest such events recorded in the modern instrumental era. Simultaneous with this collapse is the initiation of a plate boundary rifting episode north o...
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Royal Astronomical Society
2015
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Online Access: | https://authors.library.caltech.edu/57840/ https://authors.library.caltech.edu/57840/1/Geophys.%20J.%20Int.-2015-Riel-446-53.pdf https://authors.library.caltech.edu/57840/2/supp_Bardarbunga_GJI.pdf https://resolver.caltech.edu/CaltechAUTHORS:20150527-065601451 |
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ftcaltechauth:oai:authors.library.caltech.edu:57840 2023-05-15T16:21:41+02:00 The collapse of Bárðarbunga Caldera, Iceland Riel, B. Milillo, P. Simons, M. Lundgren, P. Kanamori, H. Samsonov, S. 2015-07 application/pdf https://authors.library.caltech.edu/57840/ https://authors.library.caltech.edu/57840/1/Geophys.%20J.%20Int.-2015-Riel-446-53.pdf https://authors.library.caltech.edu/57840/2/supp_Bardarbunga_GJI.pdf https://resolver.caltech.edu/CaltechAUTHORS:20150527-065601451 en eng Royal Astronomical Society https://authors.library.caltech.edu/57840/1/Geophys.%20J.%20Int.-2015-Riel-446-53.pdf https://authors.library.caltech.edu/57840/2/supp_Bardarbunga_GJI.pdf Riel, B. and Milillo, P. and Simons, M. and Lundgren, P. and Kanamori, H. and Samsonov, S. (2015) The collapse of Bárðarbunga Caldera, Iceland. Geophysical Journal International, 202 (1). pp. 446-453. ISSN 0956-540X. doi:10.1093/gji/ggv157. https://resolver.caltech.edu/CaltechAUTHORS:20150527-065601451 <https://resolver.caltech.edu/CaltechAUTHORS:20150527-065601451> other Article PeerReviewed 2015 ftcaltechauth https://doi.org/10.1093/gji/ggv157 2021-11-11T19:04:29Z Lying below Vatnajökull ice cap in Iceland, Bárðarbunga stratovolcano began experiencing wholesale caldera collapse in 2014 August 16, one of the largest such events recorded in the modern instrumental era. Simultaneous with this collapse is the initiation of a plate boundary rifting episode north of the caldera. Observations using the international constellation of radar satellites indicate rapid 50 cm d^(−1) subsidence of the glacier surface overlying the collapsing caldera and metre-scale crustal deformation in the active rift zone. Anomalous earthquakes around the rim of the caldera with highly nondouble-couple focal mechanisms provide a mechanical link to the dynamics of the collapsing magma chamber. A model of the collapse consistent with available geodetic and seismic observations suggests that the majority of the observed subsidence occurs aseismically via a deflating sill-like magma chamber. Article in Journal/Newspaper glacier Ice cap Iceland Vatnajökull Caltech Authors (California Institute of Technology) Vatnajökull ENVELOPE(-16.823,-16.823,64.420,64.420) Geophysical Journal International 202 1 446 453 |
institution |
Open Polar |
collection |
Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
English |
description |
Lying below Vatnajökull ice cap in Iceland, Bárðarbunga stratovolcano began experiencing wholesale caldera collapse in 2014 August 16, one of the largest such events recorded in the modern instrumental era. Simultaneous with this collapse is the initiation of a plate boundary rifting episode north of the caldera. Observations using the international constellation of radar satellites indicate rapid 50 cm d^(−1) subsidence of the glacier surface overlying the collapsing caldera and metre-scale crustal deformation in the active rift zone. Anomalous earthquakes around the rim of the caldera with highly nondouble-couple focal mechanisms provide a mechanical link to the dynamics of the collapsing magma chamber. A model of the collapse consistent with available geodetic and seismic observations suggests that the majority of the observed subsidence occurs aseismically via a deflating sill-like magma chamber. |
format |
Article in Journal/Newspaper |
author |
Riel, B. Milillo, P. Simons, M. Lundgren, P. Kanamori, H. Samsonov, S. |
spellingShingle |
Riel, B. Milillo, P. Simons, M. Lundgren, P. Kanamori, H. Samsonov, S. The collapse of Bárðarbunga Caldera, Iceland |
author_facet |
Riel, B. Milillo, P. Simons, M. Lundgren, P. Kanamori, H. Samsonov, S. |
author_sort |
Riel, B. |
title |
The collapse of Bárðarbunga Caldera, Iceland |
title_short |
The collapse of Bárðarbunga Caldera, Iceland |
title_full |
The collapse of Bárðarbunga Caldera, Iceland |
title_fullStr |
The collapse of Bárðarbunga Caldera, Iceland |
title_full_unstemmed |
The collapse of Bárðarbunga Caldera, Iceland |
title_sort |
collapse of bárðarbunga caldera, iceland |
publisher |
Royal Astronomical Society |
publishDate |
2015 |
url |
https://authors.library.caltech.edu/57840/ https://authors.library.caltech.edu/57840/1/Geophys.%20J.%20Int.-2015-Riel-446-53.pdf https://authors.library.caltech.edu/57840/2/supp_Bardarbunga_GJI.pdf https://resolver.caltech.edu/CaltechAUTHORS:20150527-065601451 |
long_lat |
ENVELOPE(-16.823,-16.823,64.420,64.420) |
geographic |
Vatnajökull |
geographic_facet |
Vatnajökull |
genre |
glacier Ice cap Iceland Vatnajökull |
genre_facet |
glacier Ice cap Iceland Vatnajökull |
op_relation |
https://authors.library.caltech.edu/57840/1/Geophys.%20J.%20Int.-2015-Riel-446-53.pdf https://authors.library.caltech.edu/57840/2/supp_Bardarbunga_GJI.pdf Riel, B. and Milillo, P. and Simons, M. and Lundgren, P. and Kanamori, H. and Samsonov, S. (2015) The collapse of Bárðarbunga Caldera, Iceland. Geophysical Journal International, 202 (1). pp. 446-453. ISSN 0956-540X. doi:10.1093/gji/ggv157. https://resolver.caltech.edu/CaltechAUTHORS:20150527-065601451 <https://resolver.caltech.edu/CaltechAUTHORS:20150527-065601451> |
op_rights |
other |
op_doi |
https://doi.org/10.1093/gji/ggv157 |
container_title |
Geophysical Journal International |
container_volume |
202 |
container_issue |
1 |
container_start_page |
446 |
op_container_end_page |
453 |
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1766009676281937920 |