Across
- 5. shaking of earth's crust
- 6. beneath eaarth's crust
- 7. forms from lava flow
- 13. vibration
- 15. cuplike hollow
- 18. Heat below surface
- 19. explosive eruptions
- 20. plates slide slowly across
- 22. detects shaking
Down
- 1. molten rock
- 2. spreading apart
- 3. horizontal
- 4. earthquake starts
- 8. very hot part of the mantle
- 9. explosive eruptions and lava flow.
- 10. above focus
- 11. sliding under
- 12. crack
- 14. central opening
- 16. continents drifted
- 17. amount of energy
- 19. Rocky surface
- 21. flows out vent