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Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga

Robin Matoza 1 David Fee 2 Jelle Assink Alexandra Iezzi David Green Keehoon Kim Liam Toney Thomas Lecocq Siddharth Krishnamoorthy Jean-Marie Lalande Kiwamu Nishida Kent Gee Matthew Haney Hugo Ortiz Quentin Brissaud Léo Martire Lucie Rolland Panagiotis Vergados Alexandra Nippress Junghyun Park Shahar Shani-Kadmiel Alex Witsil Stephen Arrowsmith Corentin Caudron Shingo Watada Anna Perttu Benoit Taisne Pierrick Mialle Alexis Le Pichon Julien Vergoz Patrick Hupe Philip Blom Roger Waxler Silvio de Angelis Jonathan Snively Adam Ringler Robert Anthony Arthur Jolly Geoff Kilgour Gil Averbuch Maurizio Ripepe Mie Ichihara Alejandra Arciniega-Ceballos Elvira Astafyeva Lars Ceranna Sandrine Cevuard Il-Young Che Rodrigo de Negri Carl Ebeling Läslo Evers Luis Franco-Marin Thomas Gabrielson Katrin Hafner R. Giles Harrison Attila Komjathy Giorgio Lacanna John Lyons Kenneth Macpherson Emanuele Marchetti Kathleen Mckee Robert Mellors Gerardo Mendo-Pérez T. Dylan Mikesell Edhah Munaibari Mayra Oyola-Merced Iseul Park Christoph Pilger Cristina Ramos Mario Ruiz Roberto Sabatini Hans Schwaiger Dorianne Tailpied Carrick Talmadge Jérôme Vidot Jeremy Webster David Wilson 
Abstract : The 15 January 2022 climactic eruption of Hunga volcano, Tonga, produced an explosion in the atmosphere of a size that has not been documented in the modern geophysical record. The event generated a broad range of atmospheric waves observed globally by various ground-based and spaceborne instrumentation networks. Most prominent was the surface-guided Lamb wave (≲0.01 hertz), which we observed propagating for four (plus three antipodal) passages around Earth over 6 days. As measured by the Lamb wave amplitudes, the climactic Hunga explosion was comparable in size to that of the 1883 Krakatau eruption. The Hunga eruption produced remarkable globally detected infrasound (0.01 to 20 hertz), long-range (~10,000 kilometers) audible sound, and ionospheric perturbations. Seismometers worldwide recorded pure seismic and air-to-ground coupled waves. Air-to-sea coupling likely contributed to fast-arriving tsunamis. Here, we highlight exceptional observations of the atmospheric waves.
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https://hal-polytechnique.archives-ouvertes.fr/hal-03846753
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Submitted on : Thursday, November 10, 2022 - 12:05:59 PM
Last modification on : Thursday, November 10, 2022 - 12:09:01 PM

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Robin Matoza, David Fee, Jelle Assink, Alexandra Iezzi, David Green, et al.. Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga. Science, 2022, 377 (6601), pp.95-100. ⟨10.1126/science.abo7063⟩. ⟨hal-03846753⟩

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