IPC Earthquakes and Volcanoes

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Across
  1. 4. Molten rock above the surface of the Earth.
  2. 5. Colliding tectonic plates.
  3. 8. A volcano that has not erupted for thousands of years and is unlikely to erupt again.
  4. 10. A volcano that has not erupted for over 20 years but is not extinct.
  5. 12. A zone of intense volcanic and earthquake activity (4,2,4).
  6. 13. The name of the energy waves caused by an earthquake.
  7. 14. A scientific instrument for measuring seismic waves.
  8. 15. Molten rock.
  9. 16. Tectonic plates moving along each other.
Down
  1. 1. Tectonic plates moving apart.
  2. 2. A volcano that has recently erupted.
  3. 3. The location on the surface above the focus of an earthquake.
  4. 6. A zone where one plate is being pushed under another.
  5. 7. A super continent.
  6. 9. A continental volcano may form here.
  7. 11. A large wave caused by an underwater earthquake.
  8. 13. S waves are also know as ... waves.
  9. 17. The point where an earthquake originates.