Photo detail

The eruption of May 18, 1980 sent volcanic ash, steam, water and debris to a height of 60,000 feet. The mountain lost 1,300 feet of altitude and about 2/3 of a cubic mile of material stream downward from the center of the plume and the formation and movement of pyroclastic flows down the left flank of the volcano.

us on Facebook for the latest news and information from Clark County
on Twitter for the latest news and information from Clark County