Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland’s Northern Volcanic Zone
Seismic noise interferometry is an exciting technique for studying volcanoes, providing a continuous measurement of seismic velocity changes ( dv / v ), which are sensitive to magmatic processes that affect the surrounding crust. However, understanding the exact mechanisms causing changes in dv / v...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/299755 2023-05-15T16:50:05+02:00 Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland’s Northern Volcanic Zone Donaldson, Clare Winder, T. Caudron, Corentin White, Robert S. 2019-11 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/299755 https://dipot.ulb.ac.be/dspace/bitstream/2013/299755/1/doi_283399.pdf en eng uri/info:doi/10.1126/sciadv.aax6642 https://dipot.ulb.ac.be/dspace/bitstream/2013/299755/1/doi_283399.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/299755 1 full-text file(s): info:eu-repo/semantics/openAccess Science advances, 5 (11 Sciences exactes et naturelles info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2019 ftunivbruxelles 2022-06-12T22:10:01Z Seismic noise interferometry is an exciting technique for studying volcanoes, providing a continuous measurement of seismic velocity changes ( dv / v ), which are sensitive to magmatic processes that affect the surrounding crust. However, understanding the exact mechanisms causing changes in dv / v is often difficult. We present dv / v measurements over 10 years in central Iceland, measured using single-station cross-component correlation functions from 51 instruments across a range of frequency bands. We observe a linear correlation between changes in dv / v and volumetric strain at stations in regions of both compression and dilatation associated with the 2014 Bárðarbunga-Holuhraun dike intrusion. Furthermore, a clear seasonal cycle in dv / v is modeled as resulting from elastic and poroelastic responses to changing snow thickness, atmospheric pressure, and groundwater level. This study comprehensively explains variations in dv / v arising from diverse crustal stresses and highlights the importance of deformation modeling when interpreting dv / v ,with implications for volcano and environmental monitoring worldwide. info:eu-repo/semantics/published Article in Journal/Newspaper Iceland DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Sciences exactes et naturelles |
spellingShingle |
Sciences exactes et naturelles Donaldson, Clare Winder, T. Caudron, Corentin White, Robert S. Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland’s Northern Volcanic Zone |
topic_facet |
Sciences exactes et naturelles |
description |
Seismic noise interferometry is an exciting technique for studying volcanoes, providing a continuous measurement of seismic velocity changes ( dv / v ), which are sensitive to magmatic processes that affect the surrounding crust. However, understanding the exact mechanisms causing changes in dv / v is often difficult. We present dv / v measurements over 10 years in central Iceland, measured using single-station cross-component correlation functions from 51 instruments across a range of frequency bands. We observe a linear correlation between changes in dv / v and volumetric strain at stations in regions of both compression and dilatation associated with the 2014 Bárðarbunga-Holuhraun dike intrusion. Furthermore, a clear seasonal cycle in dv / v is modeled as resulting from elastic and poroelastic responses to changing snow thickness, atmospheric pressure, and groundwater level. This study comprehensively explains variations in dv / v arising from diverse crustal stresses and highlights the importance of deformation modeling when interpreting dv / v ,with implications for volcano and environmental monitoring worldwide. info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Donaldson, Clare Winder, T. Caudron, Corentin White, Robert S. |
author_facet |
Donaldson, Clare Winder, T. Caudron, Corentin White, Robert S. |
author_sort |
Donaldson, Clare |
title |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland’s Northern Volcanic Zone |
title_short |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland’s Northern Volcanic Zone |
title_full |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland’s Northern Volcanic Zone |
title_fullStr |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland’s Northern Volcanic Zone |
title_full_unstemmed |
Crustal seismic velocity responds to a magmatic intrusion and seasonal loading in Iceland’s Northern Volcanic Zone |
title_sort |
crustal seismic velocity responds to a magmatic intrusion and seasonal loading in iceland’s northern volcanic zone |
publishDate |
2019 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/299755 https://dipot.ulb.ac.be/dspace/bitstream/2013/299755/1/doi_283399.pdf |
long_lat |
ENVELOPE(-16.831,-16.831,64.852,64.852) |
geographic |
Holuhraun |
geographic_facet |
Holuhraun |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Science advances, 5 (11 |
op_relation |
uri/info:doi/10.1126/sciadv.aax6642 https://dipot.ulb.ac.be/dspace/bitstream/2013/299755/1/doi_283399.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/299755 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/openAccess |
_version_ |
1766040268792922112 |