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Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
Earthquake Vocabulary
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Earthquake Vocabulary

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  • 1. Earthquake Vocabulary
  • 2. Fault
    • surface along which rocks move when they pass their elastic limit
  • 3. Earthquake
    • vibrations produced when rocks break along a fault
  • 4. Normal Fault
    • break in rock caused by tension forces, where rock above the fault surface moves down relative to the rock below the fault surface
  • 5.  
  • 6. Reverse Fault
    • break in rock caused by compressive forces, where rock above the fault surface moves upward relative to the rock below the fault surface
  • 7.  
  • 8. Strike-Slip Fault
    • break in rock caused by shear forces, where rocks moves past each other without much vertical movement
  • 9.  
  • 10. Focus
    • The point below the Earth’s surface where energy is released in the form of seismic waves
  • 11. Seismic Wave
    • wave generated by an earthquake
  • 12. Primary Wave (P-Wave)
    • seismic wave that moves rock particles back and forth in the same direction that the wave travels. These waves travel fastest and arrive first.
  • 13. P- Wave
  • 14. Secondary Wave (S-Wave)
    • seismic wave that moves rock particles at right angles to the direction of the wave. These waves arrive second.
  • 15. S- Wave
  • 16. Comparison P-Wave S-Wave
  • 17. Surface Wave
    • Seismic wave that moves rock particles up and down in a backward rolling motion and side to side in a swaying motion. These waves arrive last and are the most destructive.
  • 18. Damage Video
  • 19. Epicenter
    • point on Earth’s surface directly above an earthquake’s focus
  • 20. Seismograph
    • Instrument used to register earthquake waves and record the time that each arrived
  • 21. Magnitude
    • The power of an earthquake. Measured by the Richter Scale (1-10)

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