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 (less than or similar to 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 (similar to 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.

Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga / Matoza, Robin S; Fee, David; Assink, Jelle D; Iezzi, Alexandra M; Green, David N; Kim, Keehoon; Toney, Liam; Lecocq, Thomas; Krishnamoorthy, Siddharth; Lalande, Jean-Marie; Nishida, Kiwamu; Gee, Kent L; Haney, Matthew M; Ortiz, Hugo D; Brissaud, Quentin; Martire, Léo; Rolland, Lucie; Vergados, Panagiotis; Nippress, Alexandra; Park, Junghyun; Shani-Kadmiel, Shahar; Witsil, Alex; Arrowsmith, Stephen; Caudron, Corentin; Watada, Shingo; Perttu, Anna B; Taisne, Benoit; Mialle, Pierrick; Le Pichon, Alexis; Vergoz, Julien; Hupe, Patrick; Blom, Philip S; Waxler, Roger; De Angelis, Silvio; Snively, Jonathan B; Ringler, Adam T; Anthony, Robert E; Jolly, Arthur D; Kilgour, Geoff; Averbuch, Gil; Ripepe, Maurizio; Ichihara, Mie; Arciniega-Ceballos, Alejandra; Astafyeva, Elvira; Ceranna, Lars; Cevuard, Sandrine; Che, Il-Young; De Negri, Rodrigo; Ebeling, Carl W; Evers, Läslo G; Franco-Marin, Luis E; Gabrielson, Thomas B; Hafner, Katrin; Harrison, R Giles; Komjathy, Attila; Lacanna, Giorgio; Lyons, John; Macpherson, Kenneth A; Marchetti, Emanuele; McKee, Kathleen F; Mellors, Robert J; Mendo-Pérez, Gerardo; Mikesell, T Dylan; Munaibari, Edhah; Oyola-Merced, Mayra; Park, Iseul; Pilger, Christoph; Ramos, Cristina; Ruiz, Mario C; Sabatini, Roberto; Schwaiger, Hans F; Tailpied, Dorianne; Talmadge, Carrick; Vidot, Jérôme; Webster, Jeremy; Wilson, David C. - In: SCIENCE. - ISSN 0036-8075. - ELETTRONICO. - 377:(2022), pp. 95-100. [10.1126/science.abo7063]

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

Ripepe, Maurizio;Lacanna, Giorgio;Marchetti, Emanuele;Sabatini, Roberto;
2022

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 (less than or similar to 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 (similar to 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.
2022
377
95
100
Matoza, Robin S; Fee, David; Assink, Jelle D; Iezzi, Alexandra M; Green, David N; Kim, Keehoon; Toney, Liam; Lecocq, Thomas; Krishnamoorthy, Siddharth...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1284463
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