Tectonics

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Across
  1. 3. The line of weakness where tectonic plates meet
  2. 5. The waves of energy released by an earthquake
  3. 6. Area where the 2011 earthquake stuck Japan
  4. 7. The ring of _______________ is a place of high tectonic activity
  5. 8. Large waves caused by earthquakes in the ocean
Down
  1. 1. The name of the scale used to measure magnitude of earthquakes
  2. 2. The machine used to measure earthquakes
  3. 3. The point of an earthquake underground where energy is released
  4. 4. The parts of earth's surface which move on the mantle