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2 GoKawiil briefs on this topic

New sonar data explains why 2022 Tonga volcanic eruption produced an unusual tsunami

Scientists compared sonar seafloor mapping taken before and after the 2022 Hunga Tonga-Hunga Ha'apai eruption, revealing physical changes to the underwater volcano that help explain the tsunami it triggered. The eruption's tsunami behaved differently from typical earthquake-generated waves, prompting researchers to investigate its distinct origin.

gizmodo.com · 2026-09-25

Study links Tonga's 2022 Hunga tsunami to rapid caldera collapse

Researchers studying the January 2022 Hunga volcano eruption in Tonga found that a roughly four-kilometer-wide caldera sank by about a kilometer during the event, based on before-and-after seafloor mapping. The team concludes this swift collapse likely intensified the powerful tsunami that followed the eruption.

arstechnica.com · 2026-09-23