Earthquake Waves

1. Earthquake Waves

2. These waves are the fastest waves. • These waves travel through anything. • These waves are secondary waves. • This is the place inside the Earth where the Earthquake actually occurs. • This is the place on the surface of the Earth directly above the Earthquake location. • These are surface waves & are very slow. • These are only half as fast as primary waves. • Where do the deepest Earthquakes occur? • These waves are compressional waves.

3. 1. P-Waves

4. These waves are the fastest waves. • These waves travel through anything. • These waves are secondary waves. • This is the place inside the Earth where the Earthquake actually occurs. • This is the place on the surface of the Earth directly above the Earthquake location. • These are surface waves & are very slow. • These are only half as fast as primary waves. • Where do the deepest Earthquakes occur? • These waves are compressional waves.

5. 2. P-Waves

6. These waves are the fastest waves. • These waves travel through anything. • These waves are secondary waves. • This is the place inside the Earth where the Earthquake actually occurs. • This is the place on the surface of the Earth directly above the Earthquake location. • These are surface waves & are very slow. • These are only half as fast as primary waves. • Where do the deepest Earthquakes occur? • These waves are compressional waves.

7. 3. S-waves

8. These waves are the fastest waves. • These waves travel through anything. • These waves are secondary waves. • This is the place inside the Earth where the Earthquake actually occurs. • This is the place on the surface of the Earth directly above the Earthquake location. • These are surface waves & are very slow. • These are only half as fast as primary waves. • Where do the deepest Earthquakes occur? • These waves are compressional waves.

9. 4. focus

10. These waves are the fastest waves. • These waves travel through anything. • These waves are secondary waves. • This is the place inside the Earth where the Earthquake actually occurs. • This is the place on the surface of the Earth directly above the Earthquake location. • These are surface waves & are very slow. • These are only half as fast as primary waves. • Where do the deepest Earthquakes occur? • These waves are compressional waves.

11. 5. epicenter

12. These waves are the fastest waves. • These waves travel through anything. • These waves are secondary waves. • This is the place inside the Earth where the Earthquake actually occurs. • This is the place on the surface of the Earth directly above the Earthquake location. • These are surface waves & are very slow. • These are only half as fast as primary waves. • Where do the deepest Earthquakes occur? • These waves are compressional waves.

13. 6. L-waves

14. These waves are the fastest waves. • These waves travel through anything. • These waves are secondary waves. • This is the place inside the Earth where the Earthquake actually occurs. • This is the place on the surface of the Earth directly above the Earthquake location. • These are surface waves & are very slow. • These are only half as fast as primary waves. • Where do the deepest Earthquakes occur? • These waves are compressional waves.

15. 7. S-waves

16. These waves are the fastest waves. • These waves travel through anything. • These waves are secondary waves. • This is the place inside the Earth where the Earthquake actually occurs. • This is the place on the surface of the Earth directly above the Earthquake location. • These are surface waves & are very slow. • These are only half as fast as primary waves. • Where do the deepest Earthquakes occur? • These waves are compressional waves.

17. 8. Subduction boundaries

18. These waves are the fastest waves. • These waves travel through anything. • These waves are secondary waves. • This is the place inside the Earth where the Earthquake actually occurs. • This is the place on the surface of the Earth directly above the Earthquake location. • These are surface waves & are very slow. • These are only half as fast as primary waves. • Where do the deepest Earthquakes occur? • These waves are compressional waves.

19. 9. P-waves

20. We are confident in our knowledge of the structure of the Earth. We know that it has a Crust, Mantle, Outer and Inner Core. This information has been determined using ________________. • Geologists working in the coalfields of Southwest Virginia have be able to determine vital information about sub-surface(several thousand feet). They are interested in where one would find coal seams to mine. Their information comes from ____________________.

21. 10. Seismic data – information obtained from earthquake waves

22. We are confident in our knowledge of the structure of the Earth. We know that it has a Crust, Mantle, Outer and Inner Core. This information has been determined using ________________. • Geologists working in the coalfields of Southwest Virginia have be able to determine vital information about sub-surface(several thousand feet). They are interested in where one would find coal seams to mine. Their information comes from ____________________.

23. 11. Bore holes– holes that are drilled into the earth from which samples can be retrieved.

24. Recent studies of the Mantle have indicated that it is much more complex that originally thought. This new information has been revealed using _____________________.

25. 12. Seismic data