Across
- 6. Where tectonic plates move away from each other
- 7. Molten rock mixed with hot gas
- 10. Occurs when a lot of pressure builds up and is released when the crust shifts
- 11. The spot on the fault where the pressure first releases
- 13. Where tectonic plates collide with each other
- 15. Supply of magma
Down
- 1. A scale that measures the intensity of an earthquake
- 2. The spot on the earth's surface directly above the hypocenter
- 3. Where tectonic plates slide pass each other
- 4. Was originally magma under the earth's surface
- 5. A supercontinent that was formed approximately 300 million years ago
- 8. An unpredictable earthquake that occurs shortly after the big seismic events
- 9. An underwater volcano
- 12. A type of volcano that hasn't erupted for a long time
- 14. Openings in the ground that release energy from beneath the Earth