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Findingan Epicenter
- 1. Finding an Epicenter -DeMarco
- 5. Recording Board Difference in arrival times: San Francisco: 2:40
- 7. Recording Board Difference in arrival times: San Francisco: 2:40 Denver, Colorado: 5:00
- 9. Recording Board Difference in arrival times: San Francisco: 2:40 Denver, Colorado: 5:00 Seattle, Washington: 5:30
- 10. Recording Board Difference in arrival times: San Francisco: 2:40 Denver, Colorado: 5:00 Seattle, Washington 5:30 Using your ESRT, find out how far away (in Km) each of the locations must be from the epicenter. (Use the scrap paper tick mark method!) =1,600km =4,000km =3,400km
- 11. Recording Board Difference in arrival times: San Francisco: 2:40 =1,600km 1,000 2,000 3,000 4,000 5,000 Open your compass to the EXACT distance on the scale.
- 12. Use your carefully set compass to draw a circle around each city.
- 13. All three circles should intersect at one point You've found the epicenter!