Objectives for the topic: Volcanoes and Hazards

Reading: Chapter 4 in Tarbuck and Lutgens

Images to understand: Fig. 4.1, 6, 12, 17, 18, 22, 23

After completing this topic, the student will be able to:

1. Describe the characteristics (size, shape, magma type, and eruptive style) of shield volcanoes, composite (or strato-) volcanoes, cinder cones, domes, and flood lavas.
2. List the types of volcanoes found in Washington.
3. Distinguish between a crater and a caldera.
4. Contrast an eruption of a Cascade volcano with an eruption of a Hawaiian volcano.
5. List the factors that determine the explosivity of volcanic eruptions.
6. List three factors that control the viscosity of magma (and how each affects viscosity).
7. List the gases most commonly emitted from volcanoes.
8. Explain why the slopes of composite volcanoes are so unstable.
9. Describe a 5600-year-old event that influences hazard preparation around Mt. Rainier.
10. List observations scientists use to predict impending volcanic eruptions (provide an example).
11. Describe the principal volcanic hazards posed by Mt. Baker.