The Deadliest US Volcanic Eruptions
The Worst US Volcanic Eruptions
Mount St. Helens, Washington State
May 18, 1980
Death Toll: 57
The 1980 eruption created a debris avalance of about 0.7 cubic miles in volume, killing 57 and destroying more than 200 homes.
Death Toll: 0
The 1912 Novarupta was the largest volcanic explosion of the 20th Century. Ten times more powerful than the eruption of Mt. St. Helens, it ejected 9.2 square miles of debris.
Originally posted 2015-01-05 02:26:14.