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Thursday 10 February 2022
Hungatonga 2021

NASA, USA
When a volcano in the South Pacific Kingdom of Tonga began erupting in late-December 2021 and then violently exploded in mid-January 2022, NASA scientist Jim Garvin and colleagues were unusually well positioned to study the events. Ever since new land rose above the water surface in 2015 and joined two existing islands, Garvin and an international team of researchers have been monitoring changes there. The team used a combination of satellite observations and surface-based geophysical surveys to track the evolution of the rapidly changing piece of Earth. Now all of the new land is gone, along with large chunks of the two older islands. Story, pictures and links - NASA Earth Observatory.
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