Across
- 6. big chunks of earth
- 7. the origin place of and earthquake
- 9. not active
- 12. plate boundaries that move away from each other
Down
- 1. plate boundaries that move towards each other
- 2. earthquake waves
- 3. a small earthquake
- 4. where the earthquake is most powerful
- 5. sudden violent movement
- 8. a violent shaking of the ground
- 10. a machine that tells how powerful an earthquake is
- 11. a sudden movement of materials within the earth