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Tonga

Red-filter image of the Hunga Tonga–Hunga Ha‘apai eruption on 15 January 2022
Posted inResearch Spotlights

Modeling Atmospheric Waves from Hunga Tonga–Hunga Ha‘apai

by Aaron Sidder 12 May 202212 May 2022

A shallow-water oceanic model showed agreement with satellite observations of atmospheric waves produced by the eruption of the underwater volcano.

The explosive eruption of Hunga Tonga–Hunga Ha’apai in the South Pacific
Posted inResearch Spotlights

Tonga Eruption Made Waves in Earth’s Ionosphere

by Jack Lee 21 April 202221 April 2022

The blast from Hunga Tonga–Hunga Ha’apai produced far-reaching ionospheric disturbances, including one with an initial speed up to 950 meters per second.

Posted inNews

El sorprendente alcance de las gigantescas ondas atmosféricas de Tonga

by Jenessa Duncombe 1 February 202226 April 2022

Los resultados empiezan a llegar: Científicos de alrededor del mundo explican las gigantescas ondas atmosféricas que emanaron de la erupción del volcán Hunga Tonga-Hunga Ha’apai.

Posted inNews

The Surprising Reach of Tonga’s Giant Atmospheric Waves

by Jenessa Duncombe 21 January 202226 April 2022

Results are beginning to pour in: Scientists around the globe explain the massive atmospheric waves that emanated from the Hunga Tonga–Hunga Ha’apai eruption.

A satellite image showing a pumice raft floating on the ocean surface near Fiji and Tonga on 21 August 2019
Posted inScience Updates

Satellite Sleuthing Detects Underwater Eruptions

by P. A. Brandl 31 March 202018 January 2022

Satellite data helped scientists locate the volcanic source of a pumice raft floating in the South Pacific Ocean, illustrating their promise in locating and monitoring undersea eruptions.

Satellite image of a pumice raft floating in the ocean
Posted inNews

Volcanic Eruption Creates Temporary Islands of Pumice

by Katherine Kornei 6 September 201918 January 2022

Rafts of pumice, spewed from an undersea volcano, recently appeared in the South Pacific. These transient, movable islands are important toeholds for marine life like barnacles, coral, and macroalgae.

A new volcanic island, within other volcanoes of the South Pacific’s Tonga islands.
Posted inScience Updates

New Volcanic Island Unveils Explosive Past

by S. J. Cronin, M. Brenna, I. E. M. Smith, S. J. Barker, M. Tost, M. Ford, S. Tonga’onevai, T. Kula and R. Vaiomounga 26 June 201716 January 2022

A recent volcanic eruption near Tonga in the southwest Pacific created a new island, giving scientists a rare opportunity to explore the volcanic record of this remote region.

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