THE VIOLENT EARTH BELOW US

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Across
  1. 3. There are seven major ________ plates on earth.
  2. 6. is where an earthquake's seismic waves reaches the surface.
  3. 7. This occurs when two plate boundaries rub up against each other.
  4. 8. A reading of how intense an earthquake is.
  5. 10. This scale determines how powerful an earthquake is.
  6. 12. This is the origin of an earthquake deep below the surface.
Down
  1. 1. Tool used to measure seismic energy.
  2. 2. A huge wave that is sometimes created by volcanoes, earthquakes, or landslides.
  3. 4. A Tsunami wave can extend _________ miles inland.
  4. 5. A Tsunami is considered a ___________ disaster.
  5. 8. A _____________ zone occurs by plate boundaries when one plate goes under another.
  6. 9. A Tsunami is not a ____________ wave.
  7. 11. A Tsunami can occur a ___________ miles away from the shoreline.