#tonga-kermadec arc

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#caldera collapse #hunga volcano #marine hazards #seafloor mapping #seismic survey #tonga #tsunami #tsunami hazards #underwater volcanoes #volcanic eruption #volcanic risk

Tiny underwater volcanoes can trigger giant tsunamis
A 2022 eruption in Tonga revealed how small seafloor calderas can unleash outsized waves when they collapse at the right speed.
Ars Technica · 2m