Across
- 4. a vibration that spreads out away from a focus
- 7. the large super continent
- 10. Earth's solid, rocky surface
- 11. a huge crack in Earth's crust
- 13. plates are moving apart from each other
- 14. directly above the focus
- 15. denser ocean plate slides under another
- 19. plates are colliding
- 21. giant ocean waves formed by an earthquake
- 22. the amount of energy released by an earthquake
Down
- 1. Earth's surface is broken into plates
- 2. super continent that split and drifted to their location
- 3. a device that detects earthquakes
- 5. plates are sliding past each other
- 6. rocks form flat layers
- 8. hot, molten rock, below the Earth's surface
- 9. heat from below Earth's surface
- 12. the point where an earthquake starts
- 16. hot part of the mantle where magma could melt through a plate
- 17. a cup like hollow that forms around a volcano's vent
- 18. magma that reaches Earth's surface and flows out the vent
- 20. the main opening in a volcano where magma can flow