Mount St. Helens | March 27-29, 1980 (NBC News)

Mount St. Helens | April 3, 1980 (NBC News)See more

RAW VIDEO: MOUNT ST. HELENS MARCH 28TH, 1980. 51 DAYS BEFORE THE ERUPTIONSee more

WBZ Archives: Mount St. Helens EruptsSee more

RAW VIDEO: Mount St. Helens March 27, 1980. 52 days until the eruptionSee more

EAS Scenario: Mount Saint Helens and Mount Rainier EruptionSee more

Mount St. Helens "Volcanomania" Souvenirs - CBS Evening News - May 29, 1980See more

Footage of the 1980 Mount St. Helens EruptionSee more

RAW VIDEO: MOUNT ST. HELENS MARCH, 25TH 1980. 54 DAYS BEFORE THE ERUPTION.See more

RAW VIDEO: MOUNT ST. HELENS. MAY 18TH, 1980. DAY OF THE ERUPTIONSee more

ABC News — Volcano! The Eruption of Mt. St. HelensSee more

Looking back at the Mount St. Helens eruptionSee more

KATU -- Harry Truman -- March 27, 1980See more

Explosive Fury Unleashed! Mount St. Helens Eruption 1980 😱🌋 #volcano #eruption #shorts #historyfactsSee more

Flying Over Mount St. Helens: 1980 Volcanic Eruption ExplainedSee more

The Eruption of Mt. St. Helens (1980)See more

Mt. Saint Helens Eruption Of 1980See more

RAW VIDEO: MOUNT ST. HELENS. MAY 15TH, 1980. 3 DAYS BEFORE THE ERUPTION.See more

Mount St. Helens Eruption Of 1980See more

Mount St. Helens: How the Worst Volcanic Eruption in US History UnfoldedSee more