Geological Hazards

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Across
  1. 6. – Instrument used to measure ground motion.
  2. 10. – Point on the surface directly above an earthquake focus.
  3. 11. – Relating to earthquakes.
  4. 15. – A natural process that could cause harm.
  5. 16. – Rock formed by cooled magma or lava.
  6. 17. – Process where one plate sinks beneath another
  7. 18. – Plastic-like layer plates float on.
  8. 20. – Layer of hot semi-solid rock beneath the crust.
  9. 21. – Release of magma and gas from a volcano.
Down
  1. 1. – Volcanic area away from plate boundaries.
  2. 2. – Study of plate interactions.
  3. 3. – Molten rock on the surface.
  4. 4. – Ocean wave generated by undersea earthquakes or eruptions.
  5. 5. – Type of process involving plate movement.
  6. 7. – Force influencing melting inside the mantle.
  7. 8. – Line of longitude used in mapping.
  8. 9. – Older scale used to measure earthquake magnitude.
  9. 12. – Innermost layer of the Earth.
  10. 13. – Molten rock beneath Earth’s surface.
  11. 14. – A fracture in rock where movement occurs.
  12. 19. – Rigid sections of the Earth’s crust. (1 Across)