Across
- 1. this current results from the rise and sinking of air
- 3. type of fault that pulls apart
- 4. a scientist who studies earthquakes
- 5. electronic instruments that detects magnetic fields
- 6. huge waves caused when water is displaced by an earthquake
- 9. describes the magnitude of an Earthquake
- 11. smaller earthquakes
- 15. place deep in the crust where the earthquake begins
- 16. the hottest layer a solid ball of iron
- 18. caused by too much pressure and the rock breaks below the surface
- 19. a special machine used to measure earthquakes
- 22. fastest of all seismic waves
- 23. solid rock that lies beneath the soil
- 24. waves that cause the most destruction
- 25. a type of fault that slides rock past each other
- 28. when the plates pull apart
- 29. pieces of the Earth's crust
Down
- 2. theory that the continents were once all attached
- 7. energy waves that travel outward
- 8. layer where iron and nickel are liquids
- 10. when the plates Push together
- 12. outermost part of the Earth
- 13. waves that can only travel through solids
- 14. the scientist who came up with the continental drift theory
- 17. a type of fault that compresses the rock
- 20. surface location directly above the focus
- 21. these zones are created when 2 plates collide and one pushed over another
- 26. sound wave technology
- 27. layer made of rock material