Chapter 7 Earthquakes

These are the first waves released during an earthquake

• S waves
• Surface Waves
• P waves

You use a seismogram (difference in P and S Wave arrival times) to find:

• Distance to epicenter

• Distance to fault

• Distance to core

Earthquakes happen every day. Most are too small for humans to notice.

• True
• False

At about what time did all of the S-waves hit?

• 20 sec
• 45 sec
• 50 sec
• 10 seconds

Which kind of waves can NOT travel through a liquid?

• P waves
• S waves
• Radio Waves
• X rays

Which kind of wave arrives at seismic stations second?

• P (primary)
• S (secondary)
• L (love)
• R (rayleigh)

Where are the P-waves located on this seismogram?

• A
• B
• C
• D

Where are the S-waves located on this seismogram?

• A
• B
• C
• D

Which type of seismic waves are the slowest?

• S-waves
• P-waves
• Surface waves
• Primary waves

What type of wave are the BLUE waves? (orange circle is the core)

• P-waves
• S-waves
• Love waves
• Raleigh waves