A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.

Experts have dismissed the possibility of an eruption, saying, 'It’s Yellowstone being Yellowstone.' ...

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

Is this aught that foreshadows a pop, Or any other danger? No, replied Michael Poland, a geophysicist and Scientist-in-Chief at the Yellowstone Volcano Observatory, as the concern went back to an ...

“Yellowstone is a dynamic geologic system – the one constant is change.” So wrote Michael Poland, a geophysicist with the US ...

Tens of thousands of hidden earthquakes were recently discovered beneath the Yellowstone volcano by a group of international scientists, revealing ways to better inform the public of potential risks.

Learn more about the past eruptions at Yellowstone National Park and how each new eruption displaced evidence of the past.

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 on social ...

Located in the United States, one of the world's largest volcanoes is gearing up to explode. It's known as the Yellowstone ...

Did anyone else grow up in perpetual fear of any and all natural disasters? I don’t know if it was cartoons or what, but as a ...