A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days-Reference-Cited by-同舟云学术

A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days

Published:2024-09-13 Issue:6714 Volume:385 Page:1196-1205
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Svennevig Kristian¹^ORCID,Hicks Stephen P.²^ORCID,Forbriger Thomas³^ORCID,Lecocq Thomas⁴^ORCID,Widmer-Schnidrig Rudolf⁵^ORCID,Mangeney Anne⁶,Hibert Clément⁷,Korsgaard Niels J.¹^ORCID,Lucas Antoine⁶^ORCID,Satriano Claudio⁶^ORCID,Anthony Robert E.⁸^ORCID,Mordret Aurélien¹⁹^ORCID,Schippkus Sven¹⁰^ORCID,Rysgaard Søren¹¹^ORCID,Boone Wieter¹²^ORCID,Gibbons Steven J.¹³^ORCID,Cook Kristen L.⁹^ORCID,Glimsdal Sylfest¹³^ORCID,Løvholt Finn¹³^ORCID,Van Noten Koen⁴^ORCID,Assink Jelle D.¹⁴^ORCID,Marboeuf Alexis⁶^ORCID,Lomax Anthony¹⁵^ORCID,Vanneste Kris⁴^ORCID,Taira Taka’aki¹⁶^ORCID,Spagnolo Matteo¹⁷^ORCID,De Plaen Raphael⁴^ORCID,Koelemeijer Paula¹⁸^ORCID,Ebeling Carl¹⁹^ORCID,Cannata Andrea²⁰²¹^ORCID,Harcourt William D.¹⁷^ORCID,Cornwell David G.¹⁷^ORCID,Caudron Corentin²²²³^ORCID,Poli Piero²⁴^ORCID,Bernard Pascal⁶^ORCID,Larose Eric⁹,Stutzmann Eleonore⁶^ORCID,Voss Peter H.¹^ORCID,Lund Bjorn²⁵^ORCID,Cannavo Flavio²¹^ORCID,Castro-Díaz Manuel J.²⁶^ORCID,Chaves Esteban²⁷^ORCID,Dahl-Jensen Trine¹^ORCID,Pinho Dias Nicolas De⁶^ORCID,Déprez Aline²⁸,Develter Roeland¹²^ORCID,Dreger Douglas¹⁶,Evers Läslo G.¹⁴²⁹^ORCID,Fernández-Nieto Enrique D.³⁰^ORCID,Ferreira Ana M. G.²,Funning Gareth³¹^ORCID,Gabriel Alice-Agnes¹⁹³²^ORCID,Hendrickx Marc⁴^ORCID,Kafka Alan L.³³^ORCID,Keiding Marie¹,Kerby Jeffrey¹¹³⁴^ORCID,Khan Shfaqat A.³⁵^ORCID,Dideriksen Andreas Kjær¹¹^ORCID,Lamb Oliver D.³⁶^ORCID,Larsen Tine B.¹^ORCID,Lipovsky Bradley³⁷^ORCID,Magdalena Ikha³⁸^ORCID,Malet Jean-Philippe⁷³⁹^ORCID,Myrup Mikkel⁴⁰,Rivera Luis⁷^ORCID,Ruiz-Castillo Eugenio¹¹^ORCID,Wetter Selina⁶^ORCID,Wirtz Bastien⁷^ORCID

Affiliation:

1. Geological Survey of Denmark and Greenland, Copenhagen, Denmark.

2. Department of Earth Sciences, University College London, London, UK.

3. Geophysical Institute, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.

4. Seismology - Gravimetry, Royal Observatory of Belgium, Brussels, Belgium.

5. Institute of Geodesy, University of Stuttgart, Stuttgart, Germany.

6. Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France.

7. Institut Terre et Environnement de Strasbourg (ITES), CNRS UMR 7063, Université de Strasbourg, Strasbourg, France.

8. U.S. Geological Survey, Albuquerque, NM, USA.

9. Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, Univ. Gustave Eiffel, ISTerre, Grenoble, France.

10. Institute of Geophysics, Centre for Earth System Research and Sustainability (CEN), Universität Hamburg, Hamburg, Germany.

11. Department of Biology, Arctic Research Centre, Aarhus University, Aarhus, Denmark.

12. Flanders Marine Institute, Oostende, Belgium.

13. Norges Geotekniske Institutt, Oslo, Norway.

14. Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands.

15. ALomax Scientific, Mouans Sartoux, France.

16. Berkeley Seismological Laboratory, University of California Berkeley, Berkeley, CA, USA.

17. School of Geosciences, University of Aberdeen, Aberdeen, UK.

18. Department of Earth Sciences, University of Oxford, Oxford, UK.

19. Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA.

20. Università di Catania, Dipartimento di Scienze Biologiche, Geologiche e Ambientali – Sezione di Scienze della Terra, Catania, Italy.

21. Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo – Sezione di Catania, Catania, Italy.

22. Université Libre de Bruxelles, Brussels, Belgium.

23. Wel Research Institute, Wavre, Belgium.

24. University of Padova, Padua, Italy.

25. Department of Earth Sciences, Uppsala University, Sweden.

26. University of Málaga, Málaga, Spain.

27. Volcanological and Seismological Observatory of Costa Rica, OVSICORI-UNA, Heredia, Costa Rica.

28. Data-Terra / Theia, CNRS UAR 2013, Strasbourg, France.

29. Delft University of Technology, Delft, Netherlands.

30. University of Seville, Seville, Spain.

31. University of California, Riverside, Riverside, CA, USA.

32. Ludwig-Maximilians-Universität München, Munich, Germany.

33. Weston Observatory, Boston College, Weston, MA, USA.

34. Scott Polar Research Institute, Department of Geography, University of Cambridge, Cambridge, UK.

35. DTU Space, Technical University of Denmark, Kongens Lyngby, Denmark.

36. GNS Science | Te Pū Ao, Wairakei Research Centre, Taupō, New Zealand.

37. University of Washington, Seattle, WA, USA.

38. Institut Teknologi Bandung, Bandung, Indonesia.

39. Data-Terra / ForM@Ter, CNRS UAR 2013, Strasbourg, France.

40. Greenland National Museum and Archives, Nuuk, Greenland.

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 × 10 6 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 × 10 11 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.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://www.science.org/doi/pdf/10.1126/science.adm9247

Reference183 articles.

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