Question 1

Earthquake waves can be recorded because ground motion causes the seismograph to shake.

Accepted Answer

A) True 
 B)False

Question 2

When an earthquake occurs

Accepted Answer

A)   energy in the form of waves radiates from the point of release
B)   deformed rocks rebound releasing energy
C)   surface waves produce body waves
D)   A and B
E)   B and CF) B) and D)
G) A) and B)

Question 3

According to the elastic rebound theory

Accepted Answer

A)   rocks will bend before they break.
B)   rocks will snap back into their original shape after faulting.
C)   rocks will break when their capacity to store energy of deformation has been exceeded.
D)   A and C
E)   all of the aboveF) C) and D)
G) C) and E)

Question 4

An example of one of the strongest earthquakes of intraplate origin known in North America in historical times is

Accepted Answer

A)   the 1906 San Francisco earthquake.
B)   the 1964 Anchorage, Alaska earthquake.
C)   the 1811 New Madrid, Missouri earthquake.
D)   the 1886 Charleston, Carolina earthquake.
E)   the 1984 Mount St. Helens, Washington earthquake.F) D) and E)
G) B) and E)

Question 5

Seismic waves are like water waves in that they radiate outward across Earth's surface from the point of disturbance.

Accepted Answer

A) True 
 B)False

Question 6

What controls whether an earthquake is shallow-, intermediate-, or deep-focus?

Accepted Answer

Depth or location at which the stress is...

Question 7

P-waves cause most of the structural destructive due to earthquakes.

Accepted Answer

A) True 
 B)False

Question 8

What is paleoseismology?

Accepted Answer

the study of the evi...

Question 9

Why is elasticity of rocks critical to the elastic rebound theory?

Accepted Answer

The energy of the ea...

Question 10

Seismographs record both body and surface waves.

Accepted Answer

A) True 
 B)False

Question 11

Earthquakes generated along divergent plate boundaries are typically shallow focus.

Accepted Answer

A) True 
 B)False

Question 12

What is the epicenter of an earthquake?

Accepted Answer

the point on Earth's...

Question 13

The___________ of an earthquake on the Richter Scale is determined by measuring the ___________ of the largest seismic wave at a standard distance from the epicenter.

Accepted Answer

magnitude,...

Question 14

Why are Benioff zones inclined or dipping?

Accepted Answer

Benioff zones are defined on the basis o...

Question 15

Which type of seismic waves cause particles at or near the surface of Earth to vibrate back and forth in a horizontal plane perpendicular to the direction of wave travel.

Accepted Answer

The answer of Which type of seismic waves cause particles...

Question 16

What is the likelihood of Southern California slipping into the ocean during a giant earthquake in the future?

Accepted Answer

The answer of What is the likelihood of Southern California...

Question 17

What is the hypocenter, or focus, of an earthquake?

Accepted Answer

the location within ...

Question 18

A___________ results from a rapid release of energy in a body of water.

Accepted Answer

The answer of A___________ results from a rapid release of...

Question 19

Seismic waves travel more (slowly, rapidly)___________ through rocks of higher density and more (slowly, rapidly)___________ through rocks of greater elasticity.

Accepted Answer

The answer of Seismic waves travel more (slowly, rapidly)___________ through...

Question 20

Why are earthquakes generated at divergent and transform plate boundaries nearly always shallow-focus?

Accepted Answer

The stresses at these boundaries are gen...

Exam 10: Earthquakes

Why is elasticity of rocks critical to the elastic rebound theory?

Correct AnswerverifiedThe energy of the ea...View AnswerShow Answer

Seismic waves travel more (slowly, rapidly)___________ through rocks of higher density and more (slowly, rapidly)___________ through rocks of greater elasticity.

Correct AnswerverifiedShow Answer

Seismic waves are like water waves in that they radiate outward across Earth's surface from the point of disturbance.

Correct AnswerverifiedShow Answer

What is the epicenter of an earthquake?

Correct Answerverifiedthe point on Earth's...View AnswerShow Answer

When an earthquake occurs

Correct AnswerverifiedShow Answer

P-waves cause most of the structural destructive due to earthquakes.

Correct AnswerverifiedShow Answer

Seismographs record both body and surface waves.

Correct AnswerverifiedShow Answer

An example of one of the strongest earthquakes of intraplate origin known in North America in historical times is

Correct AnswerverifiedShow Answer

What controls whether an earthquake is shallow-, intermediate-, or deep-focus?

Correct AnswerverifiedDepth or location at which the stress is...View AnswerShow Answer

What is the hypocenter, or focus, of an earthquake?

Correct Answerverifiedthe location within ...View AnswerShow Answer

Earthquake waves can be recorded because ground motion causes the seismograph to shake.

Correct AnswerverifiedShow Answer

Earthquakes generated along divergent plate boundaries are typically shallow focus.

Correct AnswerverifiedShow Answer

What is paleoseismology?

Correct Answerverifiedthe study of the evi...View AnswerShow Answer

According to the elastic rebound theory

Correct AnswerverifiedShow Answer

Why are Benioff zones inclined or dipping?

Correct AnswerverifiedBenioff zones are defined on the basis o...View AnswerShow Answer

Which type of seismic waves cause particles at or near the surface of Earth to vibrate back and forth in a horizontal plane perpendicular to the direction of wave travel.

Correct AnswerverifiedShow Answer

What is the likelihood of Southern California slipping into the ocean during a giant earthquake in the future?

Correct AnswerverifiedShow Answer

A___________ results from a rapid release of energy in a body of water.

Correct AnswerverifiedShow Answer

The___________ of an earthquake on the Richter Scale is determined by measuring the ___________ of the largest seismic wave at a standard distance from the epicenter.

Correct Answerverifiedmagnitude,...View AnswerShow Answer

Why are earthquakes generated at divergent and transform plate boundaries nearly always shallow-focus?

Correct AnswerverifiedThe stresses at these boundaries are gen...View AnswerShow Answer

Correct Answer
verified
The energy of the ea...
View Answer

Seismic waves travel more (slowly, rapidly)_ through rocks of higher density and more (slowly, rapidly)_ through rocks of greater elasticity.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
the point on Earth's...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Depth or location at which the stress is...
View Answer

Correct Answer
verified
the location within ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
the study of the evi...
View Answer

Correct Answer
verified

Correct Answer
verified
Benioff zones are defined on the basis o...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The_ of an earthquake on the Richter Scale is determined by measuring the _ of the largest seismic wave at a standard distance from the epicenter.

Correct Answer
verified
magnitude,...
View Answer

Correct Answer
verified
The stresses at these boundaries are gen...
View Answer