: Click Play and wait for the vibrations to stop. Suppose you were at the recording station when the earthquake hit. Based on the pattern of waves on the seismogram, what did you experience during the earthquake? 4. Explore: Click Reset, and drag the recording station closer to the epicenter. Click Play.

A. How does this seismogram differ from the one you first investigated?

B. What would this earthquake feel like?

Activity B:

Distance to the epicenter Get the Gizmo ready:

Click Reset.

Place the recording station 300 km from the epicenter. (Does not have to be exact.)

Question: How can you determine how far you are from the center of an earthquake?

1. Observe: Click Play, and observe the P- and S-waves. Which waves are faster?

2. Measure: Wait until the seismogram is complete. Turn on Show time probe. Place the left (green)