Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart
The Storegga Slide is the largest known exposed submarine landslide in the world, which triggered a tsunami that inundated the coasts of northern Europe ~8,150 years ago. Previous studies suggested the removal of 50–70 m of sediment from the northern slide scar segment, contributing half of the tota...
Published in: | Communications Earth & Environment |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English German |
Published: |
Springer
2023
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/58120/ https://oceanrep.geomar.de/id/eprint/58120/1/s43247-023-00710-y-1.pdf https://oceanrep.geomar.de/id/eprint/58120/2/43247_2023_710_MOESM1_ESM.pdf https://oceanrep.geomar.de/id/eprint/58120/13/pm_2023_07_Neubewertung-Storegga-Rutschung_de.pdf https://oceanrep.geomar.de/id/eprint/58120/14/pm_2023_07_Reassessment-Storegga_en.pdf https://doi.org/10.1038/s43247-023-00710-y |
id |
ftoceanrep:oai:oceanrep.geomar.de:58120 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:58120 2024-02-11T10:06:22+01:00 Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart Karstens, Jens Haflidason, Haflidi Berndt, Christian Crutchley, Gareth J. 2023-02-28 text https://oceanrep.geomar.de/id/eprint/58120/ https://oceanrep.geomar.de/id/eprint/58120/1/s43247-023-00710-y-1.pdf https://oceanrep.geomar.de/id/eprint/58120/2/43247_2023_710_MOESM1_ESM.pdf https://oceanrep.geomar.de/id/eprint/58120/13/pm_2023_07_Neubewertung-Storegga-Rutschung_de.pdf https://oceanrep.geomar.de/id/eprint/58120/14/pm_2023_07_Reassessment-Storegga_en.pdf https://doi.org/10.1038/s43247-023-00710-y en de eng ger Springer https://oceanrep.geomar.de/id/eprint/58120/1/s43247-023-00710-y-1.pdf https://oceanrep.geomar.de/id/eprint/58120/2/43247_2023_710_MOESM1_ESM.pdf https://oceanrep.geomar.de/id/eprint/58120/13/pm_2023_07_Neubewertung-Storegga-Rutschung_de.pdf https://oceanrep.geomar.de/id/eprint/58120/14/pm_2023_07_Reassessment-Storegga_en.pdf Karstens, J. , Haflidason, H., Berndt, C. and Crutchley, G. J. (2023) Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart. Open Access Communications Earth & Environment, 4 . Art.Nr. 55 (2023). DOI 10.1038/s43247-023-00710-y <https://doi.org/10.1038/s43247-023-00710-y>. doi:10.1038/s43247-023-00710-y cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2023 ftoceanrep https://doi.org/10.1038/s43247-023-00710-y 2024-01-15T00:26:44Z The Storegga Slide is the largest known exposed submarine landslide in the world, which triggered a tsunami that inundated the coasts of northern Europe ~8,150 years ago. Previous studies suggested the removal of 50–70 m of sediment from the northern slide scar segment, contributing half of the total slide volume of up to 3200 km³. However, new sediment echosounder profiles and sedimentological constraints show that most material within the northern Storegga slide scar had already failed ~20,000 years ago, at the end of the Last Glacial Maximum. We refer to this previously undetected slope failure as the Nyegga Slide. In our revised slope failure reconstruction, the Nyegga Slide removed more than 35 m of sediments that were previously attributed to the tsunamigenic Storegga Slide. This implies that large slope failures at the mid-Norwegian margin occur more frequently than previously thought, indicating a higher tsunami hazard for the North Atlantic. Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Nyegga ENVELOPE(9.443,9.443,62.612,62.612) Storegga ENVELOPE(18.251,18.251,68.645,68.645) Communications Earth & Environment 4 1 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English German |
description |
The Storegga Slide is the largest known exposed submarine landslide in the world, which triggered a tsunami that inundated the coasts of northern Europe ~8,150 years ago. Previous studies suggested the removal of 50–70 m of sediment from the northern slide scar segment, contributing half of the total slide volume of up to 3200 km³. However, new sediment echosounder profiles and sedimentological constraints show that most material within the northern Storegga slide scar had already failed ~20,000 years ago, at the end of the Last Glacial Maximum. We refer to this previously undetected slope failure as the Nyegga Slide. In our revised slope failure reconstruction, the Nyegga Slide removed more than 35 m of sediments that were previously attributed to the tsunamigenic Storegga Slide. This implies that large slope failures at the mid-Norwegian margin occur more frequently than previously thought, indicating a higher tsunami hazard for the North Atlantic. |
format |
Article in Journal/Newspaper |
author |
Karstens, Jens Haflidason, Haflidi Berndt, Christian Crutchley, Gareth J. |
spellingShingle |
Karstens, Jens Haflidason, Haflidi Berndt, Christian Crutchley, Gareth J. Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart |
author_facet |
Karstens, Jens Haflidason, Haflidi Berndt, Christian Crutchley, Gareth J. |
author_sort |
Karstens, Jens |
title |
Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart |
title_short |
Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart |
title_full |
Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart |
title_fullStr |
Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart |
title_full_unstemmed |
Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart |
title_sort |
revised storegga slide reconstruction reveals two major submarine landslides 12,000 years apart |
publisher |
Springer |
publishDate |
2023 |
url |
https://oceanrep.geomar.de/id/eprint/58120/ https://oceanrep.geomar.de/id/eprint/58120/1/s43247-023-00710-y-1.pdf https://oceanrep.geomar.de/id/eprint/58120/2/43247_2023_710_MOESM1_ESM.pdf https://oceanrep.geomar.de/id/eprint/58120/13/pm_2023_07_Neubewertung-Storegga-Rutschung_de.pdf https://oceanrep.geomar.de/id/eprint/58120/14/pm_2023_07_Reassessment-Storegga_en.pdf https://doi.org/10.1038/s43247-023-00710-y |
long_lat |
ENVELOPE(9.443,9.443,62.612,62.612) ENVELOPE(18.251,18.251,68.645,68.645) |
geographic |
Nyegga Storegga |
geographic_facet |
Nyegga Storegga |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/58120/1/s43247-023-00710-y-1.pdf https://oceanrep.geomar.de/id/eprint/58120/2/43247_2023_710_MOESM1_ESM.pdf https://oceanrep.geomar.de/id/eprint/58120/13/pm_2023_07_Neubewertung-Storegga-Rutschung_de.pdf https://oceanrep.geomar.de/id/eprint/58120/14/pm_2023_07_Reassessment-Storegga_en.pdf Karstens, J. , Haflidason, H., Berndt, C. and Crutchley, G. J. (2023) Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart. Open Access Communications Earth & Environment, 4 . Art.Nr. 55 (2023). DOI 10.1038/s43247-023-00710-y <https://doi.org/10.1038/s43247-023-00710-y>. doi:10.1038/s43247-023-00710-y |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s43247-023-00710-y |
container_title |
Communications Earth & Environment |
container_volume |
4 |
container_issue |
1 |
_version_ |
1790604048435511296 |