Across
- 7. Fault with horizontal motion
- 8. 90% of the world's earthquakes are along the __________
- 9. California's major fault
- 12. A plate boundary where plates are moving towards one another
- 13. Large wave created by an undersea earthquake
- 14. Instrument for measuring earthquakes
- 15. Process of one plate sinking beneath another
- 17. A plate boundary where plates are sliding past each other
- 18. Formed when continental plates spread apart
- 19. Discovered continental drift
- 20. Southern supercontinent
- 22. New oceanic crust is formed during _____ spreading
- 25. Northern supercontinent
- 26. A more horizontal fault found at convergent boundaries
- 28. Supercontinent
Down
- 1. A plate boundary where plates are spreading apart
- 2. Fault usually found at divergent boundaries
- 3. Worldwide ocean
- 4. Organism that provided fossil evidence for continental shift
- 5. _____ magnitude scale
- 6. Underwater mountain chain along plate boundary
- 10. The point on the earth's surface above an earthquake's location
- 11. Driving force of continental drift
- 16. Formed when two oceanic plates converge
- 21. The west coast of North America is made up of many _____ terranes
- 23. Fault usually found at convergent boundaries
- 24. Fault with vertical motion
- 27. Break in the Earth's crust/lithosphere