Across
- 6. explosions of lava
- 8. ripples, ridges, and hollows moving over the water
- 10. a sudden violent shaking of the ground, typically causing great destruction, as a result of movements within the earth's crust or volcanic action.
- 11. a long, high sea wave caused by an earthquake or other disturbance.
Down
- 1. the action of when one tectonic plate moves underneath another
- 2. occurs when two tectonic plates move away from each other
- 3. Crust The outermost shell of a terrestrial planet
- 4. When two plates come together
- 5. a mixture of molten and semi-molten rock found beneath the surface of the Earth
- 7. the rigid outer part of the earth, consisting of the crust and upper mantle.
- 9. a measure of the size of the earthquake source and is the same number no matter where you are or what the shaking feels like.