Movie of the eruption of St Helens volcano in America

It is a movie capturing the eruption of St Helens volcano in America erupted in 1980. Suddenly a hole in any unusual mountain, explosive eruption. The excitement of the plume tells us the greatness of the explosion.

Incidentally, this eruption reduced the altitude of St Helens volcano from 2950 meters to 2550 meters. It seems that the plume has traveled around the earth in two weeks. What size is it ....

Details are as follows.Eruption of Mount St. Helens !, The Travel Videos - Google Video

The eruption lost 57 lives, 200 buildings and 47 bridges disappeared, railway 24 kilometers, highway 300 kilometers were destroyed. The debris flow that occurred has flowed at an incredible speed of 100 meters per second.

For the St Helens volcano, the following link is detailed

St. Helens Mountain - Wikipedia