Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...

The earth's rumbling beneath Yellowstone, but don’t worry; scientists are keeping a close eye on that supervolcano and its ...

Add Yahoo as a preferred source to see more of our stories on Google. A National Park Service (NPS) representative has debunked videos circulating online that falsely claim animals are fleeing ...

"Kablooey!" That's the word U.S. Geological Survey volcanic experts used to describe a muddy eruption at Black Diamond Pool in Yellowstone National Park on Saturday morning. Video shared by the USGS ...

Most tourists who visit Yellowstone National Park snap photos of Old Faithful and stroll past bubbling mud pots, never realizing they're walking on top of one of Earth's most powerful geological ...

Tens of thousands of tiny earthquakes which went undetected for years have been revealed under the Yellowstone supervolcano, potentially paving the way to predict future natural disasters. An ...