A supervolcano is located at Yellowstone National Park. Here's what happens to North America and the rest of the world if Yellowstone erupts.

VIDEO: New webcam at Yellowstone National Park records 'small' eruption from Black Diamond Pool Beginning of dialog window. Escape will cancel and close the window.

A small eruption occurred at Yellowstone National Park in Wyoming on Saturday, and a newly installed webcam captured it.The webcam was set up just weeks before the eruption to monitor activity at ...