A global analysis of deep infrasound produced by the January 2022 eruption of Hunga volcano
- 1CEA/DAM/DIF, F-91297, Arpajon, France (julien.vergoz@cea.fr)
- 2BGR, B4.3, D-30655 Hannover, Germany
- 3HIGP, SOEST, University of Hawai‘i at M anoa, Hawai‘i, USA
- 4Department of Earth Sciences, University of Firenze, 50121 Firenze, Italy
- 5IPG, Laboratoire Magmas et Volcans, 63000, Université de Clermont-Ferrand, France
- 6CTBTO, Vienna International Center, Vienna, Austria
- 7NORSAR, N-2007 Kjeller, Norway
- 8ISTerre Institut des Sciences de la Terre, CNRS, Université Grenoble Alpes, France
The eruption of Hunga volcano, Tonga is the most energetic event recorded by the infrasound component of the global International Monitoring System (IMS). Infrasound, acoustic-gravity and Lamb waves were recorded by all 53 operational stations after circling four times the globe. The atmospheric waves recorded globally exhibit amplitude and period comparable to the ones observed following the 1883 Krakatoa eruptions. In the context of the future verification of the Comprehensive Nuclear-Test-Ban Treaty, this event provides a prominent milestone for studying in detail infrasound propagation around the globe for almost one week as well as for calibrating the performance of the IMS network in a broad frequency band.
How to cite: Vergoz, J., Le Pichon, A., Listowski, C., Hupe, P., Pilger, C., Gaebler, P., Ceranna, L., Garcés, M., Marchetti, E., Labazuy, P., Mialle, P., Brissaud, Q., Näsholm, P., Shapiro, N., and Poli, P.: A global analysis of deep infrasound produced by the January 2022 eruption of Hunga volcano, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-13598, https://doi.org/10.5194/egusphere-egu22-13598, 2022.
