Plate techtonics

123456789
Across
  1. 4. a type of volcano
  2. 5. instrument used to measure seimic waves
  3. 8. converging plates
  4. 9. scale to measre magnitude of earthquake
Down
  1. 1. older version of earthquake magnitude scale
  2. 2. diverging plates
  3. 3. plates moving constantly
  4. 6. lava coming out
  5. 7. techtonic plate