Earthquakes and Tsunamis

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Across
  1. 4. The point within the Earth where the earthquake starts.
  2. 7. A sudden release of stored energy in the Earth's crust.
  3. 9. A type of boundary that causes small, shallow earthquakes as plates move apart.
  4. 10. Instruments used to record the motion of the ground during an earthquake.
  5. 12. They travel by compressing and expanding the material they pass through.
Down
  1. 1. A type of plate boundary that causes strong earthquakes as plates collide.
  2. 2. The point on the Earth's surface directly above the focus.
  3. 3. A measurement of the intensity of an earthquake.
  4. 5. Only travel through solids.
  5. 6. A type of plate boundary that causes moderate earthquakes as plates slide past each other.
  6. 8. The energy released during an earthquake.
  7. 11. Giant waves usually caused by underwater earthquakes.