Deep under the Pacific Ocean, more than 300 miles off the Oregon coast, lies a restless underwater volcano known as Axial ...

Magma seeping into a reservoir under the island of Santorini set off thousands of quakes, some of which almost reached a 5.0 on the Richter scale.

For the last year, Alaska's Mount Spurr has been showing signs of a potential eruption on the horizon. If an eruption happens, it would likely occur at Crater Peak, shown in the background of this ...

Kīlauea greeted Monday morning's early morning darkness with a slow-bubbling eruption that, so far, has posed no threat to communities on the Big Island of Hawaii, officials told NBC News. The volcano ...

The Environmental Protection Agency has removed references to fossil fuels from its online page about climate change causes.

The popular Blue Lagoon attraction has closed as a precaution, but early signs are that the volcano's activity may not disrupt Icelandic tourism too much. A volcano erupted in southwest Iceland on ...