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ID: 286796 • Letter: C
Question
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https://ksugis.maps.arcgis.com/apps/MapSeries/index.html?appid=0448fcf6a56d40188e32eb84cfa5d35a
Earthquakes
23.Where was the magnitude of 7.9 recorded?
A.212 km SE of Inarajan Village, Guam
B.41 km WNW ofPanguna, Papua New Guinea
C.188 km SSE of Tabiauan, Philippines
D.218 km WSW of Port Hardy, Canada
24.How many earthquakes with a magnitude greater than 7 were recorded?
A.1
B.7
C.5
D.2
25.How many earthquakes with a magnitude greater than 7 and
a depth greater than 400 km were recorded?
A.0
B.1
C.2
D.5
26. Based on a visual inspection of the globe, which country among those listed below
experiencedthe most earthquakes(regardless of magnitude)in January 2017? (You might have to zoom in or out).
A. Ethiopia
B.Brazil
C.France
D.Japan
27. With respect to all earthquakes, most of them are located along the perimeter of the Pacific
Ocean. What is this area -with its distinct pattern of earthquakes -known as?
A. Edge of fire
B. Ring of fire
C. Pacific tectonic zone
D. Ring of earthquakes
28. Which of the following describes the spatial relationship between plate boundaries and earthquake epicenters.
A. They are seldom found near each other
B. They appear to be randomly distributed
C.They are often found together
D. There is no apparent spatial relationship
Hotspots
Note:The hotspot video referenced at the beginning of this section is no longer available using the link
in the lab. You may skip this link, read the background information for the section, and answer
questions 29-33, as the content in the video is not needed to complete this part of the lab.
29. Using the ruler tool, what is the distance in miles from Kilauea to the center of Kauai?
A. ~ 235 miles
B. ~ 325 miles
C. ~ 525 miles
D. ~ 352 miles
30. Using the information above, calculate the average rate of speed (in inches per year, or in/yr) of the plate since the creation of Kauai?
(Remember:convert miles to inches. 63,360 inches = 1 mile)
.
A. 235 miles*63360 inches/mile / 5,100,000 years = 2.92 inches/year
B. 352 miles*63360 inches/mile / 5,100,000 years = 4.37 inches/year
C. 525 miles*63360 inches/mile / 5,100,000 years = 6.52 inches/year
D. 325 miles*63360 inches/mile / 5,100,000 years = 4.04 inches/year
31. Using the ruler tool, what is the distance in miles from Kilauea to the center of Maui?
A.~90 miles
B. ~110 miles
C. ~140miles
D. ~170 miles
32. Using the information above, calculate the average rate of speed (in inches per year, or in/yr) of
the plate since the creation of Maui?(Remember: convert miles to inches)
.
A. 90 miles*63360 inches/mile / 1,300,000 years = 4.39 inches/year
B. 170 miles*63360 inches/mile / 1,300,000 years = 8.29 inches/year
C. 140 miles*63360 inches/mile / 1,300,000years = 6.82inches/year
D. 110 miles*63360 inches/mile / 1,300,000 years = 5.36 inches/year
33. Do hotspots occur only in the ocean? Explain why or why not.
Hint:See sections 10.11 and 10.12 in the course text for additional information about hotspots that is relevant to this question
A. Yes, because they form only under oceanic crust
B. Yes, because there is no evidence of them under continental crust
C. No, because, there is evidence of them under continental crust (e.g. Yellowstone)
D. No, because the Andes Mountains in South America are a good example of a hotspot
Fault Types
Note:The final section in the lab covers several topics related to tectonic deformation and stress,
including the main types of faults, main types of folds, and horst-and-graben topography. This lab will his lab will serve as an introduction to these topics, which we will further explore in the next module of the course.
Hint:Forquestion 34, assume the sedimentary rocks beneath feature H have been folded into a convex-
upward structure that resembles an arch.
34. Is Feature H an anticline or syncline?
A. Anticline
B. Syncline
C. Hogback ridge
D. Both a syncline and anticline
Hint:For question 35, use the geologic cross-section of the Boulder area on this website to help you
determine the correct answer:http://bcn.boulder.co.us/basin/watershed/geology/. In particular, note
the landform associated with the outcropping of the Dakota Formation that is given on the cross-section.
35. What is Feature I (linear feature) which is located at the base of the Rocky Mountains?
A. Anticline
B. Syncline
C. Hogback ridge
D. Both a syncline and anticline
Hint:For question 36, note that the feature in question may not be as high as a cliff; it may simply be a short but noticeable vertical face that results in a “step” in the landscape
36. What is the name of the cliff face formed by a normal fault?
A. Scarp
B. Talus
C. Scree
D. Slide
37. What is Feature
J? (Click the downward pointing cones to determine which feature is J and whichis K).
A. Horst
B. Graben
C. Ridge
D. Reverse fault
38. What is Feature K?
A. Horst
B. Graben
C. Ridge
D. Reverse fault
39. What fault is not associated with uplift?
A. Normal
B. Reverse
C. Overthrust
D. No, because the Andes Mountains in South America are a good example of a hotspot
Fault Types
Hint:For question 34, assume the sedimentary rocks beneath feature H have been folded into a convex-
upward structure that resembles an arch.
34. Is Feature H an anticline or syncline?
A. Anticline
B. Syncline
C. Hogback ridge
D. Both a syncline and anticline
Hint:
For question 35, use the geologic cross-section of the Boulder area on this website to help you
determine the correct answer:http://bcn.boulder.co.us/basin/watershed/geology/. In particular, note
the landform associated with the outcropping of the Dakota Formation that is given on the cross-section.
35. What is Feature I (linear feature) which is located at the base of the Rocky Mountains?
A. Anticline
B. Syncline
C. Hogback ridge
D. Both a syncline and anticline
Hint:For question 36 note that the feature in question may not be as high as a cliff; it may simply be a
short but noticeable vertical face that results in a “step” in the landscape
36. What is the name of the cliff face formed by a normal fault?
A. Scarp
B. Talus
C. Scree
D. Slide
37. What is FeatureJ? (Click the downward pointing cones to determine which feature is J and which is K).
A. Horst
B. Graben
C. Ridge
D. Reverse fault
38. What is Feature K?
A. Horst
B. Graben
C. Ridge
D. Reverse fault
39. What fault is not associated with uplift?
A. Normal
B. Reverse
C. Overthrust
D. Strike-slip
40. Are faults limited to land, or can they occur under water as well? Explain why or why not.
A. Limited to land, as there is no evidence of faulting under water
B. Limited to land, as faulting is a continental crust phenomenon
C. Not limited to land, as faulting can occur under water
D. Not limited to land, as faulting requires at least one side to be oceanic
Explanation / Answer
23 B.41 km WNW ofPanguna, Papua New Guinea
24 D.2
25 B.1
188km SSE of Tabiauan, Philippines
26 D.Japan
Please ask the rest of the questions in separate questionnaire.
time January 10, 2017 depth 612.71 Magnitude 7.30 place 188km SSE of Tabiauan, Philippines
26 D.Japan
Please ask the rest of the questions in separate questionnaire.
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