Earthquakes and volcanoes

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Across
  1. 2. lava flows
  2. 7. thought to be responsible for the movements of the plates
  3. 8. a record sheet (on a drum)
  4. 9. a plate we live on
  5. 10. where magma is stored
  6. 14. plates moving apart , rifting, no folds (normal faults form)
  7. 17. magma that reaches the surface
  8. 18. plates are made of this layer of the earth (it is 100km thick)
  9. 19. shaking of earths crust caused by s release of energy
Down
  1. 1. a type of wave (goes through only solids and is the slowest)
  2. 3. a measure of the amount of damage done (measured on mercalli scale)
  3. 4. lava blows
  4. 5. a way of diving the earth
  5. 6. formed from subduction zone between Juan de Fuchs plate and North American plate (ie Mount St. Helens)
  6. 10. molten rock underground
  7. 11. boiling hot springs (erupts violently)
  8. 12. measures magnitudes (ground motion goes up by x10 energy release by x30
  9. 13. the point on earths surface directly above the focus
  10. 15. division between crust and mantle
  11. 16. fissures in the ground (steam and hot gases form)