Across
- 4. Used to measure the strength of an earthquake
- 8. When plates collide these are formed
- 9. The part of the earth between the crust and the outer core
- 10. The Alps and The Andes were formed during this period
- 13. The point where the earthquake started
- 14. This type of volcano has not erupted for a long time but may erupt again
- 15. When magma reaches the surface of the earth it is called
- 18. Name of a fault line in California
- 19. The thin outer layer of the earth is called
Down
- 1. The largest earthquake and volcanic zone lie along this
- 2. When lava breaks down it creates this
- 3. Instrument used to measure earthquakes
- 5. An example of a Mid Ocean Ridge
- 6. The point on the earths surface directly above where it began
- 7. The line seperating one plate from another
- 9. Hot liquid rock beneath the earths surface
- 11. Example of a volcanic island
- 12. Huge tidal wave
- 16. Magma reaches the surface of the earth through this
- 17. Plates that slip by one another are referred to as