The 1980 eruption of Mount St. Helens was catastrophic eruption on May 18, 1980 at Mount Saint Helens.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.