Earthquakes & Plate Tectonics

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Across
  1. 3. measurement of an earthquake's strength based on seismic waves and movement along faults
  2. 6. sinking movement of the ocean floor back into the mantle
  3. 8. smaller earthquakes that occur in the same general area during the days to years following a larger "mainshock"
  4. 9. the shaking that results from the movement of rock beneath Earth's surface
  5. 10. the point on Earth's surface directly above where the earthquake begins
  6. 11. stress that squeezes rock until it folds or breaks
  7. 12. a plate boundary where two plates move past each other in opposite directions
  8. 13. a plate boundary where two plates move away from each other
Down
  1. 1. a break in Earth's crust along which rocks move
  2. 2. a small, linear crack in the surface of the Earth
  3. 3. the area of maximum damage from an earthquake
  4. 4. a plate boundary where two plates move toward each other
  5. 5. stress that pushes masses of rock in opposite directions, in a sideways movement
  6. 7. the geological activity that occurs within the interior of a tectonic plate