Earthquake Waves

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Earthquake Waves

  1. 1. Identify the following boundaries as convergent, transform, or, divergent. A B C Divergent Convergent Transform
  2. 2. ReviewReview Earthquakes Plate boundaries: Convergent Divergent Transform
  3. 3. Earthquake WavesEarthquake Waves P-Waves Primary Waves- longitudinal waves
  4. 4. P WavesP Waves
  5. 5. Earthquake WavesEarthquake Waves Arrive first, travel almost twice as fast as S waves Travel through solids, liquids, gases
  6. 6. Earthquake WavesEarthquake Waves S-Waves Secondary Waves- transverse waves
  7. 7. Earthquake WavesEarthquake Waves •Travel through solids only
  8. 8. Surface WavesSurface Waves Sometimes called “L” waves Travel through solids only Responsible for most damage due to their intense vibrations
  9. 9. Surface WavesSurface Waves Surface waves occur when P and S waves reach the surface
  10. 10. Location of EarthquakesLocation of Earthquakes The Focus- the breaking point (inside the Earth) where the vibrations originate
  11. 11. Focus
  12. 12. Location of EarthquakesLocation of Earthquakes The Epicenter- the location (on the surface) directly above the Focus
  13. 13. Focus Epicenter
  14. 14. Locating EarthquakesLocating Earthquakes Seismologists can figure out earthquake locations through trilateration
  15. 15. Fresno, CA
  16. 16. Reno, NV
  17. 17. Tonopah, NV
  18. 18. Epicenter
  19. 19. http://www.sciencecourseware.com/ virtualearthquake/VQuakeExecute. html

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