Earthquakes, volcanoes, and plates. Oh my!

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Across
  1. 1. Biggest volcano type. Mount st. Helen is an example of this kind.
  2. 4. Most explosive magma type
  3. 6. Volcano with steep sides that is less than 500m high.
  4. 7. Largest wave
  5. 9. Measures destructive nature of the earthquake.
  6. 10. An earthquake wave type that squeezes and pulls rocks in the same direction along which the waves are traveling
  7. 14. When two plates come together
  8. 15. Wave that causes the most damage
  9. 16. Volcano that forms when later upon layer of basaltic lava accumulates during non explosive eruptions
  10. 17. When two plates move apart from each other
  11. 18. A convergent plate has a _______ fault.
  12. 20. A divergent plate has a _______ fault.
Down
  1. 2. A transform plate has a _______ fault.
  2. 3. Measures size of fault rupture, movement of rupture, and the rocks stiffness.
  3. 5. Volcano that forms when the summit or side of a volcano collapses into the magma chamber that once fueled the volcano
  4. 8. Measures size of biggest wave from earthquake
  5. 11. When two plates slide across each other
  6. 12. An earthquake wave type that causes rocks to move in right a angles in relation to the direction of the waves.
  7. 13. First shown wave on a seismograph
  8. 19. An earthquake wave type that moves in two directions as they pass through a rock.