Natural disaster

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Across
  1. 6. explosions of lava
  2. 8. ripples, ridges, and hollows moving over the water
  3. 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.
  4. 11. a long, high sea wave caused by an earthquake or other disturbance.
Down
  1. 1. the action of when one tectonic plate moves underneath another
  2. 2. occurs when two tectonic plates move away from each other
  3. 3. Crust The outermost shell of a terrestrial planet
  4. 4. When two plates come together
  5. 5. a mixture of molten and semi-molten rock found beneath the surface of the Earth
  6. 7. the rigid outer part of the earth, consisting of the crust and upper mantle.
  7. 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.