Add me on facebook charles.ily11

1. Seismic Wave

2. Seismic Wave
Seismic wave is simply energy
transferred from one area to another
within the earth’s interior.

3. Types of Seismic Wave
Body Waves
Surface Waves

4. Body Waves

5. Body waves
Waves that can enter
earth’s interior

6. Primary Wave or P-wave

7. Primary Waves (P-waves)
• Travel in all media – solid, liquid and gas.
• The P wave is also known as a
compressional wave or a “push/pull” wave.
• The fastest wave (4-7km/sec)

8. Secondary Waves (S – waves)

9. Secondary Waves (S – waves)
The S wave or secondary wave can also be
called a shake wave.
Slower than P waves.

10. Surface Waves

11. Travel on the
surface of the earth.
Surface Waves

12. Body Waves
L - Waves
Rayleigh Waves

13. L - Waves

14. L - Waves
Travel on the surface
L – waves: move side to side in a horizontal
plane

15. Rayleigh Waves

16. Rayleigh Waves
Rayleigh waves: Like rolling ocean waves,
they move both vertically and horizontally in
a vertical plane
Most destructive.

17. Generalization

18. Assignment
What is the difference between magnitude and
intensity?