Interpretation:
1. What is the origin time of the earthquake (at what time did the earthquake occur)?
2. Which seismograph recorded the earliest P-wave arrival? The latest?
3. What does the difference described in #2 suggest about the relative locations of each seismograph?
4. Where was the epicenter (which State and/or Country?) of this earthquake located?
5. Use your Plate Tectonics map to determine what type of plate boundary is located here..
6. Which plates are found along this boundary?
7. Describe what might be happening here to cause earthquakes at this location. BE SPECIFICI
8. Your circles may not have intersected precisely at one point. Other than error in your measurements, what are
the possible reasons for this? (be specific!)
M
CHALLENGE
Question
W
You have been using the P- and S-wave travel time curve to determine the
distance to epicenter. We have asked you to use this curve for every
earthquake you study. Explain why this curve might not be appropriate in
all situations, and justify your answer.
