The characteristics of the 2022 Tonga volcanic tsunami in the Pacific Ocean

Hu, Gui; Li, Linlin; Ren, Zhiyuan; Zhang, Kan

doi:https://doi.org/10.5194/nhess-23-675-2023

Articles | Volume 23, issue 2

https://doi.org/10.5194/nhess-23-675-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-23-675-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 2

Research article

|

14 Feb 2023

Research article |

| 14 Feb 2023

The characteristics of the 2022 Tonga volcanic tsunami in the Pacific Ocean

Gui Hu, Linlin Li, Zhiyuan Ren, and Kan Zhang

Supplement

https://doi.org/10.5194/nhess-23-675-2023-supplement

Data sets

The General Bathymetric Chart of the Oceans GEBCO https://www.gebco.net/data_and_products/gridded_bathymetry_data/

DART® (Deep-ocean Assessment and Reporting of Tsunamis) PMEL https://nctr.pmel.noaa.gov/Dart/

Earth Observation Network System in New Zealand GeoNet https://tilde.geonet.org.nz/ui/data-exploration

Sea Level Station Monitoring Facility IOC http://www.ioc-sealevelmonitoring.org/list.php

Directorate General of Civil Aviation (Chile) DGCA https://climatologia.meteochile.gob.cl/application/informacion/grupoEstaciones

National Weather Service NOAA https://www.weather.gov/ilm/observations

Japan Meteorological Agency JMA https://www.data.jma.go.jp/obd/stats/etrn/index.php

Weather Observation Website WOW https://wow.metoffice.gov.uk/observations/create

Fiji Meteorological Service FMS https://www.met.gov.fj

Model code and software

jagurs-admin/jagurs: JAGURS-D_V0516 (JAGURS-D_V0516) jagurs-admin https://doi.org/10.5281/zenodo.6118212

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Short summary

We explore the tsunamigenic mechanisms and the hydrodynamic characteristics of the 2022 Hunga Tonga–Hunga Ha'apai volcanic tsunami event. Through extensive analysis of tsunami waveforms, we identify four distinct tsunami components from different physical mechanisms. The long-lasting oscillation of the tsunami event in the Pacific Ocean was mainly associated with the interplay of the ocean waves left by atmospheric waves with local bathymetry.