Across
- 2. A sudden and violent shaking of the ground
- 5. A giant wave caused by an earthquake or volcanic eruption
- 6. A vent in the Earth's crust through which lava, ash, and gases erupt
- 7. The point on the Earth's surface directly above the focus of an earthquake
Down
- 1. The point underground where an earthquake starts
- 3. The theory that the Earth's crust is made up of many pieces
- 4. One of the large, slab-like pieces of rock that make up Earth's crust