A cluster of earthquakes rattled the seafloor south of the Island of Hawaiʻi in August 2026, drawing scientific attention to ...

Satellites captured footage of an underwater volcano eruption in a part of the sea that remains largely a mystery.

Frothy rock floating on the ocean near Papua New Guinea is the sign scientists needed that, hidden from view, an underwater volcano was erupting ...

Tsunami experts theorize that shock waves produced after a massive underwater volcanic eruption near Tonga on Jan. 15 caused ...

An island could form in the Bismarck Sea, north of Papua New Guinea, as a new underwater volcano erupts close to the surface.

A scientific team is monitoring in real time the signals that could foreshadow one of the most studied geological phenomena in the Pacific Ocean ...

The tsunami threat around the Pacific from a huge undersea volcanic eruption began to recede Sunday, while the extent of ...

A massive seafloor eruption at Axial Seamount could reshape Earth in 2025, with hundreds of daily earthquakes signaling an ...

Add Yahoo as a preferred source to see more of our stories on Google. On land, a volcanic eruption is dramatic—columns of ash, fountains of lava, a complete remaking of the terrain. But terrestrial ...