EarthQuakes and Seismic Activity

12345678910111213141516171819202122
Across
  1. 1. the scale used to measure seismic magnitude
  2. 4. the angle or slope of a fault face
  3. 7. abbreviation for the modified Mercalli Intensity scale
  4. 9. a device that senses and records earthquake waves
  5. 11. a word often used to name a tidal wave caused by an earthquake
  6. 13. tectonic plates moving toward each other
  7. 16. a device that detects earthquake waves
  8. 18. type of wave that includes Love and Raleigh types
  9. 20. tectonic plates that move away from each other
  10. 22. a crack that forms in rock to relieve stress
Down
  1. 2. the center of an earthquake on the earth's surface
  2. 3. the actual subterranean origin of an earthquake
  3. 5. the "P" in p-wave
  4. 6. a force that crushes or smashes
  5. 8. any force
  6. 10. a series of shockwaves traveling through the earth
  7. 12. the power or strength of an earthquake
  8. 14. not accurate or reliable yet
  9. 15. the "S" in s-wave
  10. 17. the force usually responsible for earthquakes
  11. 19. created by movement of rock along a joint
  12. 21. a force that creates tightness in a rope