2021–2023 Unrest and Geodetic Observations at Askja Volcano, Iceland
Abstract Unrest began in July 2021 at Askja volcano in the Northern Volcanic Zone (NVZ) of Iceland. Its most recent eruption, in 1961, was predominantly effusive and produced ∼0.1 km3 lava field. The last plinian eruption at Askja occurred in 1875. Geodetic measurements between 1983 and 2021 detail...
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ftdoajarticles:oai:doaj.org/article:d85f8ea887504790a66318307fc7de2d 2024-09-09T19:46:30+00:00 2021–2023 Unrest and Geodetic Observations at Askja Volcano, Iceland Michelle M. Parks Freysteinn Sigmundsson Vincent Drouin Sigrún Hreinsdóttir Andrew Hooper Yilin Yang Benedikt G. Ófeigsson Erik Sturkell Ásta R. Hjartardóttir Ronni Grapenthin Halldór Geirsson Elisa Trasatti Sara Barsotti Rikke Pedersen Páll Einarsson Bergrún A. Óladóttir Hildur M. Friðriksdóttir 2024-02-01T00:00:00Z https://doi.org/10.1029/2023GL106730 https://doaj.org/article/d85f8ea887504790a66318307fc7de2d EN eng Wiley https://doi.org/10.1029/2023GL106730 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL106730 https://doaj.org/article/d85f8ea887504790a66318307fc7de2d Geophysical Research Letters, Vol 51, Iss 4, Pp n/a-n/a (2024) volcanic unrest volcano geodesy volcano monitoring GNSS InSAR Askja volcano Geophysics. Cosmic physics QC801-809 article 2024 ftdoajarticles https://doi.org/10.1029/2023GL106730 2024-08-05T17:49:23Z Abstract Unrest began in July 2021 at Askja volcano in the Northern Volcanic Zone (NVZ) of Iceland. Its most recent eruption, in 1961, was predominantly effusive and produced ∼0.1 km3 lava field. The last plinian eruption at Askja occurred in 1875. Geodetic measurements between 1983 and 2021 detail subsidence of Askja, decaying in an exponential manner. At the end of July 2021, inflation was detected at Askja volcano, from GNSS observations and Sentinel‐1 interferograms. The inflationary episode can be divided into two periods from the onset of inflation until September 2023. An initial period until 20 September 2021 when geodetic models suggest transfer of magma (or magmatic fluids) from within the shallowest part of the magmatic system (comprising an inflating and deflating source), potentially involving silicic magma. A following period when one source of pressure increase at shallow depth can explain the observations. Article in Journal/Newspaper Iceland Directory of Open Access Journals: DOAJ Articles Askja ENVELOPE(-16.802,-16.802,65.042,65.042) Geophysical Research Letters 51 4 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
volcanic unrest volcano geodesy volcano monitoring GNSS InSAR Askja volcano Geophysics. Cosmic physics QC801-809 |
spellingShingle |
volcanic unrest volcano geodesy volcano monitoring GNSS InSAR Askja volcano Geophysics. Cosmic physics QC801-809 Michelle M. Parks Freysteinn Sigmundsson Vincent Drouin Sigrún Hreinsdóttir Andrew Hooper Yilin Yang Benedikt G. Ófeigsson Erik Sturkell Ásta R. Hjartardóttir Ronni Grapenthin Halldór Geirsson Elisa Trasatti Sara Barsotti Rikke Pedersen Páll Einarsson Bergrún A. Óladóttir Hildur M. Friðriksdóttir 2021–2023 Unrest and Geodetic Observations at Askja Volcano, Iceland |
topic_facet |
volcanic unrest volcano geodesy volcano monitoring GNSS InSAR Askja volcano Geophysics. Cosmic physics QC801-809 |
description |
Abstract Unrest began in July 2021 at Askja volcano in the Northern Volcanic Zone (NVZ) of Iceland. Its most recent eruption, in 1961, was predominantly effusive and produced ∼0.1 km3 lava field. The last plinian eruption at Askja occurred in 1875. Geodetic measurements between 1983 and 2021 detail subsidence of Askja, decaying in an exponential manner. At the end of July 2021, inflation was detected at Askja volcano, from GNSS observations and Sentinel‐1 interferograms. The inflationary episode can be divided into two periods from the onset of inflation until September 2023. An initial period until 20 September 2021 when geodetic models suggest transfer of magma (or magmatic fluids) from within the shallowest part of the magmatic system (comprising an inflating and deflating source), potentially involving silicic magma. A following period when one source of pressure increase at shallow depth can explain the observations. |
format |
Article in Journal/Newspaper |
author |
Michelle M. Parks Freysteinn Sigmundsson Vincent Drouin Sigrún Hreinsdóttir Andrew Hooper Yilin Yang Benedikt G. Ófeigsson Erik Sturkell Ásta R. Hjartardóttir Ronni Grapenthin Halldór Geirsson Elisa Trasatti Sara Barsotti Rikke Pedersen Páll Einarsson Bergrún A. Óladóttir Hildur M. Friðriksdóttir |
author_facet |
Michelle M. Parks Freysteinn Sigmundsson Vincent Drouin Sigrún Hreinsdóttir Andrew Hooper Yilin Yang Benedikt G. Ófeigsson Erik Sturkell Ásta R. Hjartardóttir Ronni Grapenthin Halldór Geirsson Elisa Trasatti Sara Barsotti Rikke Pedersen Páll Einarsson Bergrún A. Óladóttir Hildur M. Friðriksdóttir |
author_sort |
Michelle M. Parks |
title |
2021–2023 Unrest and Geodetic Observations at Askja Volcano, Iceland |
title_short |
2021–2023 Unrest and Geodetic Observations at Askja Volcano, Iceland |
title_full |
2021–2023 Unrest and Geodetic Observations at Askja Volcano, Iceland |
title_fullStr |
2021–2023 Unrest and Geodetic Observations at Askja Volcano, Iceland |
title_full_unstemmed |
2021–2023 Unrest and Geodetic Observations at Askja Volcano, Iceland |
title_sort |
2021–2023 unrest and geodetic observations at askja volcano, iceland |
publisher |
Wiley |
publishDate |
2024 |
url |
https://doi.org/10.1029/2023GL106730 https://doaj.org/article/d85f8ea887504790a66318307fc7de2d |
long_lat |
ENVELOPE(-16.802,-16.802,65.042,65.042) |
geographic |
Askja |
geographic_facet |
Askja |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Geophysical Research Letters, Vol 51, Iss 4, Pp n/a-n/a (2024) |
op_relation |
https://doi.org/10.1029/2023GL106730 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL106730 https://doaj.org/article/d85f8ea887504790a66318307fc7de2d |
op_doi |
https://doi.org/10.1029/2023GL106730 |
container_title |
Geophysical Research Letters |
container_volume |
51 |
container_issue |
4 |
_version_ |
1809916008773713920 |