Nuku'alofaKrakatau’s 1883 tsunami killed most of its 30,000 victims.
Earthquake-based tsunami warning systems largely miss volcanic tsunamis like the one that hit Tonga.
In 2022, Tonga’s Hunga volcano’s caldera floor collapsed a kilometer rapidly, displacing enough seawater to raise a 40-meter tsunami nearby.
But the paper stops short of proving the collapse alone caused the tsunami, calling it one of several factors.
Researchers are calling for repeat, high-resolution seafloor mapping of the 74 underwater volcanoes in the Tonga-Kermadec arc.
How each outlet framed it
- Ars Technica
- analyzes 2022 Hunga's 4km caldera collapse (1km subsidence) as tsunami amplification mechanism
Sources: Ars Technica