# 13.10: Student Responses

1. For Carrier, Oklahoma, what is the approximate time of the arrival of the first P-wave?

a. 10 seconds

b. 15 seconds

c. 21 seconds

d. 30 seconds

2. For Marlow, Oklahoma, what is the approximate time of the arrival of the first S-wave?

a. 19 seconds

b. 22 seconds

c. 35 seconds

d. 42 seconds

3. For Bolivar, Missouri, what is the difference between the P and S wave arrival times?

a. 10 seconds

b. 20 seconds

c. 40 seconds

d. 55 seconds

4. What is the approximate distance to the epicenter from Carrier, Oklahoma?

a. 70 km

b. 130 km

c. 240 km

d. 390 km

5. What is the approximate distance to the epicenter from Marlow, Oklahoma?

a. 70 km

b. 130 km

c. 240 km

d. 390 km

6. What is the approximate distance to the epicenter from Bolivar, Missouri?

a. 70 km

b. 130 km

c. 240 km

d. 390 km

7. Look at the location that you determined was the earthquake epicenter. Compare its location to Oklahoma City. Which direction is the epicenter located from Oklahoma City?

a. southeast

b. northwest

c. northeast

d. southwest

8. Examine the before and after image of the National Cathedral. Based on the changes seen within the structure, decide where this earthquake would most likely fall on the Modified Mercalli Intensity Scale. Based on this image, the most likely intensity of this earthquake would be:

a.<IV

b. V-VI

c. VII

d. VIII or greater

9. Residents in Port-au-Prince complained of extreme shaking during the earthquake, while residents of Santo Domingo, the capital of the Dominican Republic that sits 150 miles east of Port-au-Prince, assumed the shaking was caused by the passing of a large truck. Based on the Modified Mercalli Intensity Scale, the residents of Port-au-Prince mostly like experienced an intensity of _____, while the residents of Santo Domingo experienced an intensity of _____.

a. VII, II

b. VIII, III

c. X, III

d. X, IV

10. A significant earthquake hits San Mateo, California while you are there. During the shaking you are caught indoors. Would you rather be at the US Social Security Administration Building (located at South Claremont Street, San Mateo) or with the San Mateo Park Rangers (located at J Hart Clinton Drive, San Mateo)?

a. the US Social Security Administration Building

b. the San Mateo Park Rangers

11. While visiting California, you become violently ill and must visit a hospital. Based off of your fears of a possible earthquake occurring, would you rather go to Highland Hospital in Oakland or Alameda Hospital in Alameda?

a. Highland Hospital, Oakland, CA

b. Alameda Hospital, Alameda, CA

12. After what year does the number of magnitude 3 or greater earthquakes begin to rise significantly?

a. 2007

b. 2009

c. 2011

d. 2015

13. After what year does the number of fracking wells begin to rise significantly?

a. 2007

b. 2009

c. 2011

d. 2015

14. Based on the graph that you constructed, do significant earthquakes and the number of fracking wells appears to be related?

a. Yes

b. No

15. How long was the rupture length (the length of the fault that was affected)?

a. 25 miles

b. 74 miles

c. 198 miles

d. 296 miles

e. 408 miles

16. Locate the epicenter of the 1906 quake. Does the amount of horizontal slip decrease faster along the northern end or the southern end of the rupture?

a. northern end of the rupture

b. southern end of the rupture

17. What was the shaking intensity like in Sacramento?

a. light

b. strong

c. severe

d. violent

e. extreme

18. What was the shaking intensity like in Sebastopol?

a. light

b. strong

c. severe

d. violent

e. extreme

19. Based on the map, would you be more likely to experience an earthquake of magnitude >6.7 by 2031 if living in the northwest Bay Area or southeast Bay Area?

a. northwest

b. southeast

20. Based on the liquefaction map, are areas more dangerous inland or along the coast?

a. inland

b. along the coast