Which waves travel the slowest on the chart?

a. S – waves b. P – waves c. L – waves d. W – waves

2. Which waves travel the fastest on the chart?

a. S – waves b. P – waves c. L – waves d. W – waves

3. If the P – waves travel time is 8 minutes 20 seconds and the S - waves travel
time is 15 minutes – what is the epicenter distance? (Type 3 problem)

a. 1000 km
b. 2700 km
c. 5000 km
d. 6500 km

4. If the epicenter distance is 9.6 x 103 km – what is the S – wave time? (Type 2 problem)

a. 12 minutes 40 seconds (12:40)
b. 23 minutes (23:00)
c. 16 minutes 40 seconds (16:40)
d. 3 minutes 20 seconds (3:20)

5. If the epicenter distance is 9.6 x 103 km – what is the P – wave time? (Type 2 problem)

a. 12 minutes 40 seconds (12:40)
b. 23 minutes (23:00)
c. 16 minutes 40 seconds (16:40)
d. 3 minutes 20 seconds (3:20)


6. At 3:00 minutes of travel time what is the epicenter distance for the S – wave
time? (Type 1 problem)

a. 2000 km (2.0 x 103 km)
b. 700 km (0.7 x 103 km)
c. 1400 kn (1.4 x 103 km)
d. 5800 km (5.8 x 103 km)

7. At 3:00 minutes of travel time what is the epicenter distance for the P – wave
time? (Type 1 problem)

a. 2000 km (2.0 x 103 km)
b. 700 km (0.7 x 103 km)
c. 1400 km (1.4 x 103 km)
d. 5800 km (5.8 x 103 km)

8. If the P – waves has a time of 4 minutes 20 seconds and the S – wave has a
time of 7 minutes 50 seconds – what is the epicenter distance? (Type 3 problem)

a. 1200 km (1.2 x 103 km)
b. 3000 km (3.0 x 103 km)
c. 2200 km (2.2 x 103 km)
d. 4700 km (4.7 x 103 km)

9. If the S – wave time is 23 minutes 20 seconds – what is the epicenter distance?
(Type 1 problem)

a. 1000 km (1.0 x103 km)
b. 5200 km (5.2 x 103 km)
c. 8700 km (8.7 x 103 km)
d. 10,000 km (10.0 x 103 km)

10. What is the time travel difference between the P - wave and S - wave at the
epicenter distance of 7.8 x 103 km?

a. 10 minutes
b. 11 minutes 10 seconds
c. 20 minutes 20 seconds
d. 9 minutes 10 seconds