Cancel anytime. On May 18, 1980, Mount St. Helens erupted covering the region in volcanic ash. The north face of the mountain collapsed and started an avalanche that scoured about 150 square miles ...
When Mount St. Helens erupted in 1980, lava incinerated anything living for miles around. As an experiment, scientists ...
An curved arrow pointing right. Mount St. Helens has recently been swarming with geological activity, which could mean the giant American volcano is gearing up for its next big eruption.