Seconds From Disaster - Mount St. Helens Eruption

Seizoen: 2 - Aflevering: 4 / 17 - Eerst uitgezonden: 26 juli 2005 - Episode ID: 239099

Mount St. Helens, in the countryside of Washington State, has been dormant for 123 years. But on May 1980, it suddenly erupts, killing 57. Why couldn't they predict it?