Yellowstone's last giant eruption happened about 631,000 years ago. It was so powerful that the ground above the underground magma system collapsed, creating the massive Yellowstone Caldera seen today ...

UK scientists raised alarm bells after drawing up an apocalyptic play-by-play detailing what would happen if the famed Yellowstone supervolcano blew its stack. “A super-eruption on this scale would be ...

Learn how an eruption of the Yellowstone supervolcano would affect North America, and why one isn't likely to happen in the foreseeable future. Millions of people visit Yellowstone National Park each ...

During what is thought to have been a series of immense volcanic eruptions, life within hundreds of kilometers of the blasts was shattered. Ash was dispersed across much of North America, and the ...

A Yellowstone super-eruption would begin not with a sudden surprise, but with weeks of increasingly alarming warning signs such as migrating earthquake swarms, rapid ground uplift, changing geysers, ...