eprintid: 10196971
rev_number: 9
eprint_status: archive
userid: 699
dir: disk0/10/19/69/71
datestamp: 2024-09-16 10:36:37
lastmod: 2024-09-16 10:36:37
status_changed: 2024-09-16 10:36:37
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Svennevig, Kristian
creators_name: Hicks, Stephen P
creators_name: Forbriger, Thomas
creators_name: Lecocq, Thomas
creators_name: Widmer-Schnidrig, Rudolf
creators_name: Mangeney, Anne
creators_name: Hibert, Clément
creators_name: Korsgaard, Niels J
creators_name: Lucas, Antoine
creators_name: Satriano, Claudio
creators_name: Anthony, Robert E
creators_name: Mordret, Aurélien
creators_name: Schippkus, Sven
creators_name: Rysgaard, Søren
creators_name: Boone, Wieter
creators_name: Gibbons, Steven J
creators_name: Cook, Kristen L
creators_name: Glimsdal, Sylfest
creators_name: Løvholt, Finn
creators_name: Van Noten, Koen
creators_name: Assink, Jelle D
creators_name: Marboeuf, Alexis
creators_name: Lomax, Anthony
creators_name: Vanneste, Kris
creators_name: Taira, Taka’aki
creators_name: Spagnolo, Matteo
creators_name: De Plaen, Raphael
creators_name: Koelemeijer, Paula
creators_name: Ebeling, Carl
creators_name: Cannata, Andrea
creators_name: Harcourt, William D
creators_name: Cornwell, David G
creators_name: Caudron, Corentin
creators_name: Poli, Piero
creators_name: Bernard, Pascal
creators_name: Larose, Eric
creators_name: Stutzmann, Eleonore
creators_name: Voss, Peter H
creators_name: Lund, Bjorn
creators_name: Cannavo, Flavio
creators_name: Castro-Díaz, Manuel J
creators_name: Chaves, Esteban
creators_name: Dahl-Jensen, Trine
creators_name: Pinho Dias, Nicolas De
creators_name: Déprez, Aline
creators_name: Develter, Roeland
creators_name: Dreger, Douglas
creators_name: Evers, Läslo G
creators_name: Fernández-Nieto, Enrique D
creators_name: Ferreira, Ana MG
creators_name: Funning, Gareth
creators_name: Gabriel, Alice-Agnes
creators_name: Hendrickx, Marc
creators_name: Kafka, Alan L
creators_name: Keiding, Marie
creators_name: Kerby, Jeffrey
creators_name: Khan, Shfaqat A
creators_name: Dideriksen, Andreas Kjær
creators_name: Lamb, Oliver D
creators_name: Larsen, Tine B
creators_name: Lipovsky, Bradley
creators_name: Magdalena, Ikha
creators_name: Malet, Jean-Philippe
creators_name: Myrup, Mikkel
creators_name: Rivera, Luis
creators_name: Ruiz-Castillo, Eugenio
creators_name: Wetter, Selina
creators_name: Wirtz, Bastien
title: A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F57
note: This version is the author-accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Climate change is increasingly predisposing polar regions to large landslides. Tsunamigenic landslides have occurred recently in Greenland (Kalaallit Nunaat), but none have been reported from the eastern fjords. In September 2023, we detected the start of a 9-day-long, global 10.88-millihertz (92-second) monochromatic very-long-period (VLP) seismic signal, originating from East Greenland. In this study, we demonstrate how this event started with a glacial thinning–induced rock-ice avalanche of 25 × 106 cubic meters plunging into Dickson Fjord, triggering a 200-meter-high tsunami. Simulations show that the tsunami stabilized into a 7-meter-high long-duration seiche with a frequency (11.45 millihertz) and slow amplitude decay that were nearly identical to the seismic signal. An oscillating, fjord-transverse single force with a maximum amplitude of 5 × 1011 newtons reproduced the seismic amplitudes and their radiation pattern relative to the fjord, demonstrating how a seiche directly caused the 9-day-long seismic signal. Our findings highlight how climate change is causing cascading, hazardous feedbacks between the cryosphere, hydrosphere, and lithosphere.
date: 2024-09-13
date_type: published
publisher: American Association for the Advancement of Science (AAAS)
official_url: https://doi.org/10.1126/science.adm9247
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2312242
doi: 10.1126/science.adm9247
lyricists_name: Hicks, Stephen
lyricists_id: SHICK07
actors_name: Hicks, Stephen
actors_id: SHICK07
actors_role: owner
full_text_status: public
publication: Science
volume: 385
number: 6714
pagerange: 1196-1205
issn: 0036-8075
citation:        Svennevig, Kristian;    Hicks, Stephen P;    Forbriger, Thomas;    Lecocq, Thomas;    Widmer-Schnidrig, Rudolf;    Mangeney, Anne;    Hibert, Clément;                                                                                                                                                                                                                                                     ... Wirtz, Bastien; + view all <#>        Svennevig, Kristian;  Hicks, Stephen P;  Forbriger, Thomas;  Lecocq, Thomas;  Widmer-Schnidrig, Rudolf;  Mangeney, Anne;  Hibert, Clément;  Korsgaard, Niels J;  Lucas, Antoine;  Satriano, Claudio;  Anthony, Robert E;  Mordret, Aurélien;  Schippkus, Sven;  Rysgaard, Søren;  Boone, Wieter;  Gibbons, Steven J;  Cook, Kristen L;  Glimsdal, Sylfest;  Løvholt, Finn;  Van Noten, Koen;  Assink, Jelle D;  Marboeuf, Alexis;  Lomax, Anthony;  Vanneste, Kris;  Taira, Taka’aki;  Spagnolo, Matteo;  De Plaen, Raphael;  Koelemeijer, Paula;  Ebeling, Carl;  Cannata, Andrea;  Harcourt, William D;  Cornwell, David G;  Caudron, Corentin;  Poli, Piero;  Bernard, Pascal;  Larose, Eric;  Stutzmann, Eleonore;  Voss, Peter H;  Lund, Bjorn;  Cannavo, Flavio;  Castro-Díaz, Manuel J;  Chaves, Esteban;  Dahl-Jensen, Trine;  Pinho Dias, Nicolas De;  Déprez, Aline;  Develter, Roeland;  Dreger, Douglas;  Evers, Läslo G;  Fernández-Nieto, Enrique D;  Ferreira, Ana MG;  Funning, Gareth;  Gabriel, Alice-Agnes;  Hendrickx, Marc;  Kafka, Alan L;  Keiding, Marie;  Kerby, Jeffrey;  Khan, Shfaqat A;  Dideriksen, Andreas Kjær;  Lamb, Oliver D;  Larsen, Tine B;  Lipovsky, Bradley;  Magdalena, Ikha;  Malet, Jean-Philippe;  Myrup, Mikkel;  Rivera, Luis;  Ruiz-Castillo, Eugenio;  Wetter, Selina;  Wirtz, Bastien;   - view fewer <#>    (2024)    A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days.                   Science , 385  (6714)   pp. 1196-1205.    10.1126/science.adm9247 <https://doi.org/10.1126/science.adm9247>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10196971/1/MainManuscript_Dickson%20Fjord_copyeditcleaned.pdf