- Triangulation In This Exercise You Will Use Triangulation To Locate The Earthquake That Generated The Seismograms Shown 1 (91.87 KiB) Viewed 142 times
Triangulation In this exercise, you will use triangulation to locate the earthquake that generated the seismograms shown in Figure 5 (below) and plot the circles representing the distance (D) to the earthquake epicenter on the map that is Figure 6 (provided separately). Before that can be done, the calculations to the right must be completed by measuring the time difference (AT) between the arrival of the P wave and S wave for each seismogram and calculating the distance D, as above, using the given distance equation: D=25* AT/2.0 and the following parameters: P-wave velocity: Vp = 6.1 km/sec S-wave velocity: Vs = 4.1 km/sec Difference: 2.0 km/sec St. Louis, MO 1 Bloomington, IN Bowling Green, OH Minneapolis, MN 2 3:10:00 3:11:00 3:12:00 3:13:00 Loubo 0 20 40 60 80 100 seconds 3:14:00 3:15:00