Plate Tectonics, Volcanoes and Earthquakes

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Across
  1. 4. Instrument used to measure the strength of an earthquake
  2. 8. Strength of an earthquake
  3. 9. Type of plate boundary where Earthquakes happen
  4. 10. Underwater earthquake
  5. 11. Reason why plates move
  6. 14. Movement of the continents
  7. 15. Point on the surface where the earthquake is strongest
  8. 16. Place where magma is stored
  9. 18. Type of a volcano which has not erupted in along time but may do so again
Down
  1. 1. Tremors sent out from the Focus
  2. 2. Point under the surface where an earthquake begins
  3. 3. Place along pacific Ocean where many earthquakes and volcanoes happen
  4. 5. Plate boundary where volcanoes are formed
  5. 6. Former Supercontinent
  6. 7. Place where two plates meet
  7. 12. Scale used to measure the strength of an earthquake
  8. 13. Top of a volcano
  9. 17. Magma is known as this substance when it comes out of the volcano