Ring Fault Slip Reversal at Bárðarbunga Volcano, Iceland: Seismicity During Caldera Collapse and Re-Inflation 2014–2018
<jats:title>Abstract</jats:title><jats:p>Microearthquakes reveal the kinematics of the Bárðarbunga caldera ring fault; during the 2014–2015 rifting event and gradual caldera collapse, and its subsequent, ongoing re‐inflation. Tightly constrained focal mechanisms during re‐inflation...
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American Geophysical Union (AGU)
2022
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ftunivcam:oai:www.repository.cam.ac.uk:1810/342738 2024-02-04T10:01:28+01:00 Ring Fault Slip Reversal at Bárðarbunga Volcano, Iceland: Seismicity During Caldera Collapse and Re-Inflation 2014–2018 Glastonbury-Southern, E Winder, T White, RS Brandsdóttir, B 2022-11-01T09:00:29Z application/pdf text/xml https://www.repository.cam.ac.uk/handle/1810/342738 https://doi.org/10.17863/CAM.90151 en eng eng American Geophysical Union (AGU) http://dx.doi.org/10.1029/2021gl097613 Geophysical Research Letters https://doi.org/10.5281/zenodo.7115911 https://www.repository.cam.ac.uk/handle/1810/342738 doi:10.17863/CAM.90151 Baroarbunga Holuhraun caldera collapse microearthquakes earthquake mechanisms Article 2022 ftunivcam https://doi.org/10.17863/CAM.9015110.5281/zenodo.7115911 2024-01-11T23:21:01Z <jats:title>Abstract</jats:title><jats:p>Microearthquakes reveal the kinematics of the Bárðarbunga caldera ring fault; during the 2014–2015 rifting event and gradual caldera collapse, and its subsequent, ongoing re‐inflation. Tightly constrained focal mechanisms during re‐inflation have reversed phase arrival polarities from events during the caldera collapse. Thus, the inner side of the steeply dipping northern caldera faults (averaging 81 ± 8°) has been moving upwards during the post‐eruptive period. Both precise relative relocations of the seismicity and fault plane solutions confirm that this is due to slip reversal on the same ring fault structure.</jats:p> Article in Journal/Newspaper Iceland Apollo - University of Cambridge Repository Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) |
institution |
Open Polar |
collection |
Apollo - University of Cambridge Repository |
op_collection_id |
ftunivcam |
language |
English |
topic |
Baroarbunga Holuhraun caldera collapse microearthquakes earthquake mechanisms |
spellingShingle |
Baroarbunga Holuhraun caldera collapse microearthquakes earthquake mechanisms Glastonbury-Southern, E Winder, T White, RS Brandsdóttir, B Ring Fault Slip Reversal at Bárðarbunga Volcano, Iceland: Seismicity During Caldera Collapse and Re-Inflation 2014–2018 |
topic_facet |
Baroarbunga Holuhraun caldera collapse microearthquakes earthquake mechanisms |
description |
<jats:title>Abstract</jats:title><jats:p>Microearthquakes reveal the kinematics of the Bárðarbunga caldera ring fault; during the 2014–2015 rifting event and gradual caldera collapse, and its subsequent, ongoing re‐inflation. Tightly constrained focal mechanisms during re‐inflation have reversed phase arrival polarities from events during the caldera collapse. Thus, the inner side of the steeply dipping northern caldera faults (averaging 81 ± 8°) has been moving upwards during the post‐eruptive period. Both precise relative relocations of the seismicity and fault plane solutions confirm that this is due to slip reversal on the same ring fault structure.</jats:p> |
format |
Article in Journal/Newspaper |
author |
Glastonbury-Southern, E Winder, T White, RS Brandsdóttir, B |
author_facet |
Glastonbury-Southern, E Winder, T White, RS Brandsdóttir, B |
author_sort |
Glastonbury-Southern, E |
title |
Ring Fault Slip Reversal at Bárðarbunga Volcano, Iceland: Seismicity During Caldera Collapse and Re-Inflation 2014–2018 |
title_short |
Ring Fault Slip Reversal at Bárðarbunga Volcano, Iceland: Seismicity During Caldera Collapse and Re-Inflation 2014–2018 |
title_full |
Ring Fault Slip Reversal at Bárðarbunga Volcano, Iceland: Seismicity During Caldera Collapse and Re-Inflation 2014–2018 |
title_fullStr |
Ring Fault Slip Reversal at Bárðarbunga Volcano, Iceland: Seismicity During Caldera Collapse and Re-Inflation 2014–2018 |
title_full_unstemmed |
Ring Fault Slip Reversal at Bárðarbunga Volcano, Iceland: Seismicity During Caldera Collapse and Re-Inflation 2014–2018 |
title_sort |
ring fault slip reversal at bárðarbunga volcano, iceland: seismicity during caldera collapse and re-inflation 2014–2018 |
publisher |
American Geophysical Union (AGU) |
publishDate |
2022 |
url |
https://www.repository.cam.ac.uk/handle/1810/342738 https://doi.org/10.17863/CAM.90151 |
long_lat |
ENVELOPE(-16.831,-16.831,64.852,64.852) |
geographic |
Holuhraun |
geographic_facet |
Holuhraun |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
https://doi.org/10.5281/zenodo.7115911 https://www.repository.cam.ac.uk/handle/1810/342738 doi:10.17863/CAM.90151 |
op_doi |
https://doi.org/10.17863/CAM.9015110.5281/zenodo.7115911 |
_version_ |
1789967369761718272 |