Use the amplitude from the nearest station Show your work on figure 5 and write

# Use the amplitude from the nearest station show your

• 6

This preview shows page 1 - 6 out of 6 pages.

earthquake? Use the amplitude from the nearest station. Show your work on figure 5 and write your answer here . 6. Briefly summarize how you find the distance to an epicenter (in your words). 7. What else do you need to know to find the location of the epicenter? Figure 2 Time-travel graph for P and S waves. Use ruler or other straight edge to find time lag. Make sure ruler is vertical. 1
GEOL 101 - Physical Geology – SCC 2 0 50 100 150 200 250 0 10 20 30 40 50 60 Distance (km) Time (seconds)
GEOL 101 - Physical Geology – SCC Figure 3. Seismograms for an earthquake in the Pacific Northwest. Use ruler or other straight edge to get an accurate reading of arrival time and amplitude. Use the amplitude scale shown on this figure. 20 mm 20 mm 4:33:00 T ime Amplitude 4:32:30 4:33:30 4:34:00 4:32:15 20 mm ELLENSBURG 20 mm Time Amplitude PORTLAND 20 mm 20 mm Amplitude 4:33:00 Ti me 4:33:30 4:34:00 BELLINGHAM 4:32:30 4:33:00 4:32:30 4:33:30 4:34:00 4:32:15 4:32:15 Figure 4 . Map of seismograph locations. Use a compass to find the epicenter and make a star on the map at the epicenter. Use the SCALE below the map to set your compass the correct distance. 3
SCALE 0 km 200 km 80 km GEOL 101 - Physical Geology – SCC Ellensburg Figure 5. Richter nomogram for determining magnitude of an earthquake. Show your work on this figure to receive full credit. Part 2. Magnitude and Intensity 4 400 km
GEOL 101 - Physical Geology – SCC Earthquake Magnitude . Each earthquake has a single Magnitude that is determined by knowing the distance from a seismograph to an earthquake and observing the maximum signal amplitude recorded on the seismograph.To

#### You've reached the end of your free preview.

Want to read all 6 pages?

• Fall '17
• Cale Spoon

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern