26. Shear and Rayleigh Waves

Try these first

1. 1.

   What are the two main types of seismic waves?

   Hint

   Think about how these waves travel through the Earth.

2. 2.

   What do S-waves cause in terms of particle motion?

   Hint

   Consider the direction of travel for S-waves.

3. 3.

   What type of wave is an S-wave?

   • Surface wave
   • Body wave
   • Both

   Hint

   Recall the wave classification we discussed.

4. 4.

   True or False: Rayleigh waves travel along the surface and have a retrograde motion.

   • True
   • False

   Hint

   Think of how ocean waves move.

5. 5.

   Describe how you would assess a building's resilience to S-wave induced forces in a seismic zone.

   Hint

   Consider what structural engineers look at during such evaluations.

6. 6.

   Evaluate the impact of soil types on Rayleigh wave signals and possible engineering responses.

   Hint

   Think about how soil characteristics affect seismic waves.