Chapter 6 Crossword Puzzel

123456789101112131415161718192021222324
Across
  1. 2. center of an earthquakes activity
  2. 5. spreading zones along some plate margins that are moving apart
  3. 7. the section of rock on opposite sides of the crack move relative to each other
  4. 10. the spot on the earth's surface directly above the focus
  5. 12. fault faults motion is parallel to its dip
  6. 14. block above the fault surface dropped in relation to the block under the fault
  7. 15. force exerted inside a material
  8. 17. fastest body waves and have relatively small amplitudes and short wavelengths
  9. 21. strengths of earthquakes are reported
  10. 22. the angle of a fault
  11. 23. plates slide past each other in opposite directions along long cracks in the crust
  12. 24. detects earthquake waves
Down
  1. 1. upward force on a less dense object in a denser material
  2. 3. only motion along the fault is horizontal
  3. 4. indicates the energy released by the earth's movement
  4. 6. waves with larger amplitudes
  5. 8. zones of collision or subduction- plates are moving toward each other
  6. 9. forces that act to pull an object apart
  7. 11. a force that acts to squeeze or crush an object
  8. 13. any kind of shaking of the ground measurable by seismic instruments
  9. 16. last waves to reach a seismic station
  10. 18. direction of a fault
  11. 19. crack in a rock that shows no indication of motion on either side of the crack
  12. 20. two forces acting in opposite directions attempt to slide