Articles | Volume 8, issue 4
Earth Surf. Dynam., 8, 1021–1038, 2020
https://doi.org/10.5194/esurf-8-1021-2020
Earth Surf. Dynam., 8, 1021–1038, 2020
https://doi.org/10.5194/esurf-8-1021-2020

Research article 08 Dec 2020

Research article | 08 Dec 2020

Evolution of events before and after the 17 June 2017 rock avalanche at Karrat Fjord, West Greenland – a multidisciplinary approach to detecting and locating unstable rock slopes in a remote Arctic area

Kristian Svennevig et al.

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AR by Kristian Svennevig on behalf of the Authors (24 Sep 2020)  Author's response    Manuscript
ED: Publish as is (23 Oct 2020) by Michael Krautblatter
ED: Publish as is (29 Oct 2020) by Andreas Lang(Editor)
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Short summary
The 17 June 2017 Karrat landslide in Greenland caused a tsunami that killed four people. We apply a multidisciplinary workflow to reconstruct a timeline of events and find that three historic landslides occurred in 2009, 2016, and 2017. We also find evidence of much older periods of landslide activity. Three newly discovered active slopes might pose a future hazard. We speculate that the trigger for the recent events is melting permafrost due to a warming climate.