Which of the following waves travel slowly?

a. P waves

b. S waves

c. Tsunami waves

d. Seismic body wave

ANSWER: Tsunami waves

Explanation:

P-waves travel fastest, at speeds between 4 - 8 km/sec (14,000 - 28,000 km/h) in the Earth's crust. S-waves travel more slowly, usually at 2.5 - 4 km/sec (9000 - 14,000 km/h) while tsunami travels at 600 miles per hour (970 km/hr).