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Dormant volcano
Volcano has been dormant for over 100 years -
Small explosion
12: 30 am - first small explosion occurs -
Bulge noticed
A large bulge is seen on the side of the mountain by company and government -
Bulge grows
The bulge is noticed to grow on the side of the mountain -
Observation structure
Bulge continues to grow while an observation structure is moved closer -
Explosion
8:32 am - earthquake causes massive explosion to happen -
Explosion grows
8:33 am - 2 more blast take off of Mt St Helen's -
Later eruptions
9:01 am - mountain erupts again causing more smoke and debre to flood the area -
Air problems
9:45- smoke direct shifts east
10:10-12:10 - breathing problems are recorded and gas expands around mountain -
Erupts again
Volcano erupts again with smaller eruption causing minimal damage -
Replanting
The first trees are planted in the blast zone as many more were place in the following years -
Monument
Mt. St Helen's national volcanic monument is established