Question 1

Two of the largest moment magnitudes measured to date are the 2004 Sumatra event (MS of 8.8;MW of 9.1)and the 1960 Chile earthquake (MS of 8.5;MW of 9.5).

Accepted Answer

A) True 
 B)False  True

Question 2

Other measures of earthquake magnitude may include the two magnitude scales,body wave scale (mb)and surface wave scale (Ms)

Accepted Answer

A) True 
 B)False  True

Question 3

The intensity of an earthquake is influenced by all but which one of the following?

Accepted Answer

A)   earthquake magnitude
B)   distance from the hypocentre/epicentre
C)   type of rock or sediment making up the ground surface
D)   the presence of people to record their innermost feelings
E)   duration of shakingF) None of the above
G) A) and C)

Question 4

Magnitude 2 and less can be compared to _________________ and an acceleration (g) of ___________.

Accepted Answer

A)   I-II Mercalli scale;less than 0.002
B)   IV-V Mercalli scale;of 0.2-0.99
C)   XI-XII Mercalli scale;greater than 1.0
D)   I-II Mercalli scale;of 0.2
E)   I-II Mercalli scale;of 0.1F) A) and D)
G) A) and C)

Question 5

__________ waves move in a side-to-side motion propagating in a horizontal plane parallel to the Earth's surface.

Accepted Answer

A)   P-
B)   Rayleigh
C)   Both Body and Surface Waves
D)   Both Rayleigh and P-
E)   Both Love and S-F) D) and E)
G) C) and E)

Question 6

The shaking produced by Rayleigh waves causes both vertical and horizontal movement.

Accepted Answer

A) True 
 B)False

Question 7

Earthquakes at divergent zones,such as the East African Rift system,are generated at shallow depth (<33km)and with magnitude 6.0 or less.

Accepted Answer

A) True 
 B)False

Question 8

In earthquake prone regions buildings can be reinforced and designed to prevent the likelihood of collapse during an earthquake.Which of the following measures are not designed to prevent building collapse?

Accepted Answer

A)   shear walls
B)   brace walls
C)   base isolation
D)   brick walls
E)   add buttressesF) A) and B)
G) C) and E)

Question 9

The types of rock or sediment on which a structure's foundation sits are of paramount importance with respect to whether the structure will be damaged by shaking from an earthquake.

Accepted Answer

A) True 
 B)False

Question 10

Usually,the biggest concern in designing buildings to withstand large earthquakes is the ____________ components of movement.

Accepted Answer

A)   upward push from the vertical
B)   downward pull from the vertical
C)   sideways push from the horizontalD) A) and B)
E) B) and C)

Question 11

P-waves can travel through __________________.

Accepted Answer

A)   gases
B)   liquids
C)   solids
D)   a vacuum
E)   gases,liquids,and solidsF) B) and D)
G) All of the above

Question 12

The relation between distance and damage from an earthquake seems obvious: the closer to the hypocentre/epicentre,the greater the damage,but this is not always the case.

Accepted Answer

A) True 
 B)False

Question 13

Gail Atkinson's (Canada Research Chair in Earthquake Hazards and Ground Motions) approach to mitigating earthquake risk is ____________________.

Accepted Answer

A)   to predict when and where earthquakes will occur
B)   to organize a large scale evacuation
C)   to replace foundation material (soil material) below buildings with more earthquake resistant material
D)   to destroy all buildings which are not earthquake resistant
E)   to understand the expected ground motions and design buildings to withstand themF) A) and B)
G) B) and D)

Question 14

Earthquakes are most commonly caused by ________________.

Accepted Answer

A)   explosions of nuclear bombs
B)   undersea landslides
C)   meteorite impacts
D)   volcanic activity
E)   sudden Earth movements along faultsF) A) and B)
G) A) and D)

Question 15

Each year the Earth is shaken by millions of quakes most of which are __________.

Accepted Answer

A)   above magnitude 8
B)   between magnitude 5 and 6
C)   below magnitude 2.5
D)   between magnitude 3 and 5
E)   between magnitude 6 and 7F) A) and B)
G) D) and E)

Question 16

The point where a fault first ruptures underground is known as the epicentre.

Accepted Answer

A) True 
 B)False

Question 17

Waves can be described in terms of distance or time.The distance between successive waves is the _____________.

Accepted Answer

A)   waveperiod
B)   wavedisplacement
C)   wavemeter
D)   wavefrequency
E)   wavelengthF) B) and E)
G) B) and D)

Question 18

Using the S-P timing method,epicentres can be located using seismograms from a minimum of ______ recording stations.

Accepted Answer

A)   one
B)   two
C)   three
D)   fourE) A) and C)
F) A) and B) C

Question 19

Earthquake-induced ground motions cause buildings to sway.In general,the taller the structure,the _______ the amplitude of shaking in the upper floor.

Accepted Answer

A)   greater
B)   lesser
C)   amplitude of shaking does not depend on building heightD) All of the above
E) None of the above

Question 20

High-frequency waves _________ over _______ distance while low-frequency waves do the reverse.

Accepted Answer

A)   attenuate;long
B)   intensify;short
C)   attenuate;short
D)   intensify;longE) None of the above
F) A) and C)

Exam 3: Earthquake Geology, Seismology, and Engineering

Two of the largest moment magnitudes measured to date are the 2004 Sumatra event (MS of 8.8;MW of 9.1)and the 1960 Chile earthquake (MS of 8.5;MW of 9.5).

Correct AnswerverifiedTrue

Other measures of earthquake magnitude may include the two magnitude scales,body wave scale (mb)and surface wave scale (Ms)

Correct AnswerverifiedTrue

The intensity of an earthquake is influenced by all but which one of the following?

Correct AnswerverifiedShow Answer

Magnitude 2 and less can be compared to _________________ and an acceleration (g) of ___________.

Correct AnswerverifiedShow Answer

__________ waves move in a side-to-side motion propagating in a horizontal plane parallel to the Earth's surface.

Correct AnswerverifiedShow Answer

The shaking produced by Rayleigh waves causes both vertical and horizontal movement.

Correct AnswerverifiedShow Answer

Earthquakes at divergent zones,such as the East African Rift system,are generated at shallow depth (<33km)and with magnitude 6.0 or less.

Correct AnswerverifiedShow Answer

In earthquake prone regions buildings can be reinforced and designed to prevent the likelihood of collapse during an earthquake.Which of the following measures are not designed to prevent building collapse?

Correct AnswerverifiedShow Answer

The types of rock or sediment on which a structure's foundation sits are of paramount importance with respect to whether the structure will be damaged by shaking from an earthquake.

Correct AnswerverifiedShow Answer

Usually,the biggest concern in designing buildings to withstand large earthquakes is the ____________ components of movement.

Correct AnswerverifiedShow Answer

P-waves can travel through __________________.

Correct AnswerverifiedShow Answer

The relation between distance and damage from an earthquake seems obvious: the closer to the hypocentre/epicentre,the greater the damage,but this is not always the case.

Correct AnswerverifiedShow Answer

Gail Atkinson's (Canada Research Chair in Earthquake Hazards and Ground Motions) approach to mitigating earthquake risk is ____________________.

Correct AnswerverifiedShow Answer

Earthquakes are most commonly caused by ________________.

Correct AnswerverifiedShow Answer

Each year the Earth is shaken by millions of quakes most of which are __________.

Correct AnswerverifiedShow Answer

The point where a fault first ruptures underground is known as the epicentre.

Correct AnswerverifiedShow Answer

Waves can be described in terms of distance or time.The distance between successive waves is the _____________.

Correct AnswerverifiedShow Answer

Using the S-P timing method,epicentres can be located using seismograms from a minimum of ______ recording stations.

Correct AnswerverifiedC

Earthquake-induced ground motions cause buildings to sway.In general,the taller the structure,the _______ the amplitude of shaking in the upper floor.

Correct AnswerverifiedShow Answer

High-frequency waves _________ over _______ distance while low-frequency waves do the reverse.

Correct AnswerverifiedShow Answer

Two of the largest moment magnitudes measured to date are the 2004 Sumatra event (M_S of 8.8;M_W of 9.1)and the 1960 Chile earthquake (M_S of 8.5;M_W of 9.5).

Correct Answer
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True

Other measures of earthquake magnitude may include the two magnitude scales,body wave scale (m_b)and surface wave scale (M_s)

Correct Answer
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True

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Magnitude 2 and less can be compared to _______ and an acceleration (g) of _.

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C

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High-frequency waves ___ over _ distance while low-frequency waves do the reverse.

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