St. Helens trivia
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St. Helens Mini Quiz
Test your knowledge with these top questions!
Question 1
Washington volcano Mount St. Helens caused massive devastation in 1980 by exploding in what direction?
The 1980 eruption of Mount St. Helens was initiated by a massive landslide that triggered a highly destructive lateral (sideways) blast.
Question 2
Mount St. Helens dramatically altered its iconic landscape during the 1980 eruption by doing what?
Mount St. Helens lost over 1,300 feet of elevation when its conical peak collapsed and blew away, leaving a massive horseshoe-shaped crater.
Question 3
Mount St. Helens rapidly melted its own snow and glacier ice in 1980 to create what deadly hazard?
The intense heat from the volcanic eruption instantly melted snow and ice, generating destructive debris flows of mud and rock known as lahars.
Question 4
Mount St. Helens currently exhibits what slowly growing geological feature inside its crater?
Since the catastrophic 1980 explosion, Mount St. Helens has been slowly rebuilding itself through the steady extrusion and growth of a lava dome inside the crater.