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Seismic Waves  – Chapter 9 – Quiz Questions #2
pp. 189 - 193

1. What is the difference between “body waves” and “surface waves?”

2. Which body wave is fastest & pushes / pulls rock in the direction the wave travels?

3. Which seismic wave moves rock in a motion that is perpendicular to the direction of the moving wave?

4. Which type of seismic waves (body … or … surface) tend to cause the most damage during an earthquake?

5. List what can happen to a seismic wave as it moves from one material to another as it travels through the Earth.

6. What information is gained about an earthquake from using a seismograph?

7. How would a seismologist use seismographs to study a small part of a fault zone?

8. What is measured to determine the location of an EPICENTER?

9. At least how many data stations are needed to find the epicenter of an earthquake?

10. S-waves from a quake arrive at a seismic station 40 seconds after the arrival of P-waves. How far away is the EPICENTER?

11. The distance scale on a map is 1 cm = 10 km. The distance from a seismic station to the epicenter of an earthquake is 50 km. To locate the epicenter, what would be the radius of the circle that is drawn around this station on the map?