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Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart

Earth Sciences

Revised Storegga Slide reconstruction reveals two major submarine landslides 12,000 years apart

J. Karstens, H. Haflidason, et al.

Discover the groundbreaking research by Jens Karstens, Haflidi Haflidason, Christian Berndt, and Gareth J. Crutchley, unveiling the secrets of the Storegga Slide and the previously unnoticed Nyegga Slide. This research reveals the implications for sediment displacement and tsunami hazards in the North Atlantic, suggesting more frequent large slope failures at the mid-Norwegian margin. Don't miss out on these crucial findings!

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Playback language: English
Abstract
The Storegga Slide, the world's largest known exposed submarine landslide, triggered a tsunami ~8,150 years ago. Previous research suggested a sediment removal of 50–70 m from the northern slide scar, contributing half the total slide volume. However, new data reveals a previously undetected slope failure, the Nyegga Slide, occurring ~20,000 years ago. The Nyegga Slide removed over 35 m of sediment previously attributed to the Storegga Slide, implying more frequent large slope failures at the mid-Norwegian margin and a higher tsunami hazard for the North Atlantic.
Publisher
Communications Earth & Environment
Published On
Feb 28, 2023
Authors
Jens Karstens, Haflidi Haflidason, Christian Berndt, Gareth J. Crutchley
Tags
Storegga Slide
Nyegga Slide
submarine landslide
tsunami
sediment removal
North Atlantic
slope failure

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