Name
Date
Per
Review Guide: Determining Magnitude; Locating the epicenter of an earthquake
Part 3: Determining Magnitude
9. What is the approximate Magnitude of the
earthquake being displayed?
M=
10. Explain how you were able to determine this.
11. What is the approximate Magnitude of the
earthquake being displayed?
M=
Part 4: Locating the epicenter
12. Describe the steps you would take to locate the epicenter of an earthquake.
13. What is the S-P interval for this seismogram?
14. What is the distance to the earthquake if the
S-P interval is 62 seconds?
D=
15. What is the distance to the earthquake if the
S-P interval is 35 seconds?
D=
16. What is the distance to the earthquake if the
S-P interval is 48 seconds?
D=
17. Explain why it is necessary to have data from three seismograph stations in order to locate the
epicenter.