Chapter 26, Problem 4RQ

Solution

To determine: The two types of surface waves and their motion.

Answer:

The two types of surface waves are Rayleigh Wave and Love Wave. Rayleigh Waves move in up-down motion. Love wave travels in side-to-side, in a whip like motion.

Explanation:

The two types of surface waves are given below.

1. Rayleigh Wave

2. Love Wave

1) Rayleigh waves travel on the ground surface of Earth in an up-down motion. Rayleigh waves are both transverse and longitudinal waves. Therefore they travel vertically as well as horizontally. These waves have a rolling motion, similar to ocean waves.

2) Love waves are transverse waves. They travel in back and forth direction and side to side along the ground. Love waves travel horizontally. The motion of love waves is similar to secondary waves but slower than that and without vertical component.

Conclusion:

Therefore, the two types of surface waves are Rayleigh Wave and Love Wave. Rayleigh Waves move in up-down motion. Love wave travels in side-to-side, in a whip like motion.