The deadly May 18, 1980 eruption of Mount St. Helens took the lives of 57 people and leveled hundreds of square miles of forests.
On May 18th 1980.
The 1980 eruption of Mount St. Helens.
Today
18th of May 1980
how did people prepare for the mt. st. helens eruption
the eruption of 1951 on a cool summer day in............................... Alaska
25 October 2010
The most devastating eruption was on May 18th 1890.
Mount St. Helens is most notorious for its major 1980 eruption, the deadliest and most economically destructive volcanic event in the history of the United States. Fifty-seven people were killed.
Mt St Helens first erupted on May 18, 1980
The Mount Helen's 1980 eruption was a major volcanic eruption.
About 2 cubic km of material was erupted. About the size of the Mt St Helens eruption in 1980.