North of the California border, scientists just found 21 trillion gallons of water hiding in the cracks of volcanic rock.

An Auckland eruption would likely send slow-moving rivers of lava flowing through the city – so scientists have been looking ...

While the chances of a major eruption here are low, lava could flow for hundreds of metres to several kilometres in Auckland.

A stunning composite image, made up of three years' worth of satellite photos, shows the ancient lava of Libya's Haruj ...

Expansive lava flows in the Sáttítla Highlands was captured by satellites ahead of the recent designation of the area as a national monument.

Axial Seamount is a young, 30 million-year-old undersea volcano in the Pacific Ocean off the U.S. coast, and it’s expected to ...

The discovery in Pompeii includes sumptuous mosaics and is equipped with a series of hot, warm and cold rooms and a huge plunge pool in the manner of a spa.

Like fortune tellers who peer into a crystal ball for insight, volcanologists at the USGS Hawaiian Volcano Observatory peer into the tiny crystals contained in lava flows to learn about the magma’s ...

Researchers have discovered an underground aquifer in Oregon's Cascade Range is significantly larger than previously thought ...

A spacecraft named BepiColombo is currently zipping by planet Mercury, making a very close flyby and snapping incredible high ...

Mount Ibu Volcano sent a 5km high ash column above its crater when it erupted in Indonesia on Saturday night. Footage shows the hot lava flowing from its peak, as seen from a home in North Maluku on ...

All that volcanic activity means that natural hot springs are prevalent within and outside the park. Two favorites include ...