Across
- 2. volcanic material
- 3. theory explaining Earth's moving crust
- 6. liquid layer below the mantle
- 7. measure of earthquakes strength
- 9. sudden movement across the fault line
- 10. layer broken into tectonic plates
- 12. measured in hertz
- 16. part of earth's mantle under the lithosphere
- 17. earthquake synonym
- 19. top layer of the earth
- 20. huge wave caused by underwater earthquake
Down
- 1. cracks in earths crust
- 4. the very middle of the earth
- 5. lava before it erupts
- 8. ground shakes due to tectonic movement
- 11. echo of an earthquake
- 13. built up force beneath the surface
- 14. solid part of the earth
- 15. mass/volume
- 18. layer between the crust and the core