Tectonic plates

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Across
  1. 1. molten rock inside the Earth
  2. 3. synonym for melted
  3. 6. shaking caused by an earthquake
  4. 9. the point on the earth's surface above where an earthquake starts
  5. 10. volcano, erupted recently and is expected to erupt again
  6. 11. The name of the name of the instrument which record the shaking of the Earth
  7. 14. inside layer of the Earth
  8. 15. What kind of motion does the transform margin has? ....... movement
  9. 16. Molten rock on the Earth's surface
  10. 18. The name of the margin when two plates are spreading from each other
  11. 20. volcano, not expected to erupt again in the future
Down
  1. 2. a layer of molten rock (magma) underneath the crust
  2. 4. plate plate, usually between 8 and 25 km thick
  3. 5. crust 20-60 km thick
  4. 7. volcano, not erupted for many years but could still erupt
  5. 8. Anything to do with earthquakes
  6. 9. a violent movement of the rocks in the Earth's crust
  7. 12. boundary plates meting each other
  8. 13. outside layer of the Earth
  9. 17. Synonym for subduction
  10. 19. measures the amount of energy released during an earthquake. The ....... scale