Across
- 6. The point on the ground directly above the focus
- 7. A hole through which lava erupts at the earth's surface
- 8. The middle layer of the earth, between the crust and core
- 9. The inner layer of the earth
- 11. A flood of gas, dust, ash,rushing down side of volcano
- 14. The shaking of the earth's surface
- 16. Melted rock that erupts from a volcano
- 18. A wave of energy given out in an earthquake
- 20. A place where lava erupts at the earth's surface
Down
- 1. The earth surface is broken into large pieces
- 2. The thin outer layer of the earth, made of rock
- 3. A current of warmer materials
- 4. Like sulphur dioxide which can suffocate people
- 5. A scale used to measure the intensity of a volcanic eruption
- 10. A scale for measuring the energy given out in an earthquake
- 12. The 'centre' of an earthquake
- 13. Melted rock below the earth's surface
- 15. Small tremors that may occur before an earthquake
- 17. How much energy an earthquake gives out
- 19. The summit of a volcano