Eruptions of Mount St. Helens -- Crandell and Mullineaux

1. What three types of lava have emanated from St. Helens? How do they differ in composition and geomorphic behavior?

2. Where will lava likely be emitted in a future eruption of Mt. St. Helens? How far is this lava likely to travel?

3. What volcanic hazards would you expect in the valleys near the volcano? What hazards might you expect farther away?

4. What eruptive product will travel the farthest from Mt. St. Helens? Where is it likely to go and why?