1. The Eruption Mount St Helens'

2. Pictures

3. The Facts Fifty-seven people were killed It was triggered by an earthquake It was also the biggest landslide recorded in history The volcano is in western Washington Pyroclastic flow came out of volcano which is the volcanoes most dangerous weapon

4. More Facts It happened on the 18 th of May 1980 It happened at 8:32 am It was the 4 th major eruption in 500 years Volcanic ash fell 930 miles away from the volcano It erupted sideways on the north side of volcano

5. video http://www.bbc.co.uk/science/earth/collectio ns/mount_st_helens#p00gts7y http://www.bbc.co.uk/science/earth/collectio ns/mount_st_helens#p00gts7y