the last time mount st helens erupted was on may 18, 1980.
when was the last time mount st helens erupted?
may 18, 1980
na
na
bullet::::- the volcano erupted about 150 bp, producing a long lava flow.





















































bullet::::- mount rainier erupted 1854.





















































bullet::::- mount baker erupted in 1880; fumaroles still occur at its summit.





















































bullet::::- ruby mountain might have erupted in 1898.





















































bullet::::- lassen peak erupted in 1914-5.





















































bullet::::- mount st. helens erupted in 1980, killing 57 people. (see 1980 eruption of mount st. helens).





















































section::::seismic activity.
geology of the pacific northwest