An underwater volcano in Tonga dramatically changed the global climate by releasing massive steam, not just sulfur.

Scientists at UW's Cabled Array, one of the world's largest ocean observatories monitoring this active volcano, have seen ...

A massive underwater volcano appears on the verge of an enormous eruption which could trigger thousands of earthquakes. Magma is building up beneath the mile-wide surface of the Axial Seamount ...

A volcanic eruption in the South Pacific was so powerful that its shockwaves left the planet and reached space, new research shows. The 2022 underwater Hunga Tonga-Hunga Ha‘apai eruption ...

(University of Washington) TOPICS: SEATTLE — The Pacific Northwest's most active underwater volcano is showing signs of an impending eruption, potentially occurring before the end of 2025 ...

It's unlikely for the underwater eruption to trigger a tsunami, a major earthquake or cause extensive damage like land volcanoes could. "One they don't have a mile of water sitting on top of them ...