Forty years ago, on May 18, 1980, Mount St. Helens erupted violently. It was the most deadly and devastating eruption in U.S. history. Combining eyewitness accounts with rarely seen images, this show reveals the unfolding apocalypse - from the first moments of the volcanic blast to the 12-mile-high ash plume and the lethal mudflows that raged down the mountain.
Forty years ago, on May 18, 1980, Mount St. Helens erupted violently. It was the most deadly and devastating eruption in U.S. history. Combining eyewitness accounts with rarely seen images, this show reveals the unfolding apocalypse - from the first moments of the volcanic blast to the 12-mile-high ash plume and the lethal mudflows that raged down the mountain.
General Note
Originally released by National Geographic, 2020.
Streaming video file encoded with permission for digital streaming by Infobase on January 05, 2023.
