Earthquakes crosswords puzzle

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Across
  1. 4. movement of plates that sink below another
  2. 6. land relief due to collision between two plates
  3. 8. released during a seism when rocks break suddenly
  4. 11. the San Andrea’s one is the most famous
  5. 13. measurement of the strength of a seism
  6. 14. middle layer of the Earth made of rocks that form a type of solid paste
  7. 18. new earthquakes after a seism
  8. 20. the centre of the Earth
  9. 21. point on the Earth’s surface directly vertically above the hypocentre
  10. 22. powerful vibrations produced by a seism
Down
  1. 1. synonym of seism
  2. 2. point at which the seism originates
  3. 3. vibrations following an earthquake
  4. 5. movement of plates that move away from one another
  5. 7. they make the mantle move
  6. 9. upper layer of the Earth
  7. 10. people who studies seism
  8. 12. large pieces on the Earth’s surface that move several centimeters per year
  9. 15. gigantic wave formed when a seism occurs in the sea
  10. 16. movement of rapproachement of two tectonic plates
  11. 17. verb that desribes the movement of two plates when they face one another
  12. 19. synonym of earthquake
  13. 21. our planet