8. Which of the following statements refers to the magnitude scale?

D. quantified value of seismic energy produced during an earthquake

D. location where an earthquake’s waves begin

15. Which of the following statements differentiates focus and epicenter?

A. focus is where the rock breaks, epicenter is above it on the surface

4. Which of the following describes an active fault?

C. expected to generate earthquake

13. Which of the following statements is TRUE about the epicenter of an earthquake?

D. point on the Earth’s surface where movement on the fault began

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Questions 15

Answers

1
12. What is centered on the portion of the fault that has the greatest movement?
C. Ground
B. Focus
A. Epicenter
D. Surface
2
6. What scale measures the magnitude or size of an earthquake?
B. Richter scale
A. Mercalli scale
D. Weighing scale
C. Spring scale
3
8. Which of the following statements refers to the magnitude scale?
B. a negative impact of the earthquake on surrounding areas
D. quantified value of seismic energy produced during an earthquake
C. devastation caused by an earthquake varies with location
A. measures the effect of an earthquake on a given area
4
2. What point on Earth's surface is directly above the focus?
A. Epicenter
C. Focus
B. Fault
D. Magnitude
5
3. What is focus?
C. surface of the earth where the wave starts
D. location where an earthquake’s waves begin
B. end of the seismic waves
A. center of the earth
6
15. Which of the following statements differentiates focus and epicenter?
D. epicenter shows wave movement, while focus marks the earthquake's origin
A. focus is where the rock breaks, epicenter is above it on the surface
C. focus shows wave movement, while epicenter marks the earthquake's origin
B. epicenter is where the rock breaks, focus is above it on the surface.
7
10. In which of these places will an intense earthquake likely happen?
D. along inactive fault
C. near coastal area
A. near a mountain
B. along active fault
8
5. Which point is closest to the epicenter?
A. Point A
D. Points B and C
B. Point B
C. Points A and B
9
9. What is the description of a 5.0 – 5.9 magnitude in a Richter scale?
D. strong
B. major
C. moderate
A. light
10
7. What is referred to as a measure of the amount of energy released in an earthquake?
C. Stress
D. Tension
A. Intensity
B. Magnitude
11
14. What factor determines the strength of an earthquake? The depth of its ________.
B. fault
D. ground
A. epicenter
C. focus
12
4. Which of the following describes an active fault?
C. expected to generate earthquake
A. no earthquake occurs
D. generates earthquake once in a million of years
B. no record of earthquake
13
1. Where is the epicenter located in the illustration?
A. 1
D. 2 and 3
B. 2
C. 3
14
13. Which of the following statements is TRUE about the epicenter of an earthquake?
B. epicenter is a place on the fault where it intersects the surface
A. epicenter is where the seismographs are located
D. point on the Earth’s surface where movement on the fault began
C. point on the fault’s surface where the rupture on the fault began
15
11. What is the intensity when a few people indoors feel it and objects swing slightly?
B. slightly felt
D. weak
C. strong
A. moderately strong

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