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https://doi.org/10.5194/nhess-23-393-2023
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https://doi.org/10.5194/nhess-23-393-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Feb 2023
Research article |
| 02 Feb 2023
| 02 Feb 2023
Potential tsunami hazard of the southern Vanuatu subduction zone: tectonics, case study of the Matthew Island tsunami of 10 February 2021 and implication in regional hazard assessment
Earth Structure and Processes, GNS Science, 1 Fairway Drive, Lower Hutt 5010, New Zealand
Bernard Pelletier
GEOAZUR, Institut de Recherche pour le Développement, 101,
Promenade Roger Laroque, BP A5 98848 Nouméa CEDEX, New Caledonia
Aditya Gusman
Earth Structure and Processes, GNS Science, 1 Fairway Drive, Lower Hutt 5010, New Zealand
William Power
Earth Structure and Processes, GNS Science, 1 Fairway Drive, Lower Hutt 5010, New Zealand
Xiaoming Wang
Earth Structure and Processes, GNS Science, 1 Fairway Drive, Lower Hutt 5010, New Zealand
David Burbidge
Earth Structure and Processes, GNS Science, 1 Fairway Drive, Lower Hutt 5010, New Zealand
Maxime Duphil
ENTROPIE, Institut de Recherche pour le Développement, 101,
Promenade Roger Laroque, BP A5 98848 Nouméa CEDEX, New Caledonia
École Doctorale no. 129 Sciences de l'Environnement, UPMC
Sorbonne Université, 4, Place Jussieu, 75005, Paris CEDEX, France
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Short summary
On 10 February 2021 a magnitude 7.7 earthquake occurring at the southernmost part of the Vanuatu subduction zone triggered a regional tsunami that was recorded on many coastal gauges and DART stations of the south-west Pacific region. Beginning with a review of the tectonic setup and its implication in terms of tsunami generation in the region, this study aims to show our ability to reproduce a small tsunami with different types of rupture models and to discuss a larger magnitude 8.2 scenario.
On 10 February 2021 a magnitude 7.7 earthquake occurring at the southernmost part of the Vanuatu...
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