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Concept #1 Quiz

Choose the best possible answer to the following questions about Key Concept 1 "Earthquake basics."

This activity contains 8 questions.

Question 1.
An earthquake’s source of energy is located at the _____________, but the location at the land surface above that point is called the ______________.

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End of Question 1

Question 2.
Identify the indicated earthquake components by selecting the correct response.

The letters A through D appear on an image associated with this question.

This question presents 4 items numbered 2.1 through 2.4. Each item is presented with a pulldown menu containing the letters A through D. For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
End of Question 2

Question 3.
The “focus” and “epicenter” associated with earthquakes are _________ and _________, respectively.

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End of Question 3

Question 4.
Match the following basic earthquake terms with the appropriate description:

A matching question presents 7 answer choices and 7 items. The answer choices are lettered A through G. The items are numbered 4.1 through 4.7. Screen readers will read the answer choices first. Then each item will be presented along with a select menu for choosing an answer choice. Using the pull-down menus, match each item in the left column to the corresponding item in the right column.
A slow and gradual displacement along a fault, usually resulting in little earthquake activity
B the location on the surface of the earth, below which the point of rupture occurred
C a tremor or smaller earthquake that precedes a main larger earthquake
D a tremor or smaller earthquake that precedes a main larger earthquake
E a “snap back” action – the cause of earthquakes
F large fractures in the Earth along which rocks are moved and/or displaced, causing earthquakes
G the source point from which all earthquake energy radiates
End of Question 4

Question 5.
How is a “fault,” a “focus,” and an “epicenter” related to an earthquake?

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End of Question 5

Question 6.
Which of the following best describes “elastic rebound” theory of earthquakes?

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End of Question 6

Question 7.
Why do “main” earthquakes have “foreshocks” and “aftershocks”?

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End of Question 7

Question 8.
Which of the following would NOT be a situation that would produce an earthquake?

End of Question 8

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