Earthquakes

123456789101112131415161718192021
Across
  1. 4. what movement changes the course of a river
  2. 5. when sandy soil collapses after an earthquake, it is called?
  3. 7. another term for plate tectonics
  4. 11. when two plates continuously rub against each other, what is released?
  5. 13. what fault line is the Southern Alps on
  6. 16. when two plates collide
  7. 17. an EQ can cause this natural event
  8. 18. what is caused by a natural process
  9. 20. what is a sequence of events called
Down
  1. 1. centre of the Earth
  2. 2. when all the continents were one it was called?
  3. 3. the middle layer of the Earth
  4. 6. ridges when two plates move apart from each other
  5. 7. the outer layer of the Earth surface
  6. 8. the result of a natural process beyond the control of people
  7. 9. the point the seismic waves first reach the Earth's surface
  8. 10. measures the strength of an earthquake
  9. 12. when on plate moves underneath another
  10. 14. cracks in the land
  11. 15. The ________ Mercalli scale measure the intensity of an EQ
  12. 19. when the land moves upwards this movement is called?
  13. 21. another word for flooding