How the Earth Was Made - Yellowstone

Seizoen: 1 - Aflevering: 8 / 8 - Eerst uitgezonden: 31 maart 2009 - Episode ID: 407825

Geologists evaluate Yellowstone National Park, one of the most dangerous geological features on Earth; the park is hit by 500 earthquakes in early 2009, raising concerns a super-volcano is beginning to stir.