Question 1

P waves can travel through solids and liquids but not through gases.

Accepted Answer

A) True 
 B)False

Question 2

Which is the correct relationship for the relative velocities of the different types of seismic waves?

Accepted Answer

A)  P = 1.7 X S and L = 0.9 X S
B)  L X 0.9 = S = P X 1.7
C)  P X 0.9 = L X 1.7 = S
D)  S = 1.7P and S = 0.9 X LE) None of the above
F) A) and B)

Question 3

________ have the highest velocities.

Accepted Answer

A)  Primary waves
B)  Secondary waves
C)  Surface waves
D)  Diffracted S wavesE) All of the above
F) C) and D)

Question 4

Seismic gaps are ________.

Accepted Answer

A)  unusually quiet zones, which have not produced earthquakes, along known active faults
B)  sweatshirt boutiques located in Vancouver
C)  inactive faults cutting across high ridges and water gaps
D)  segments of active faults with creep rates of up to 2 centimetres/yearE) B) and D)
F) B) and C)

Question 5

Which one of the following best characterizes tsunamis?

Accepted Answer

A)  They cause the land to ripple and oscillate.
B)  They are faster than seismic surface waves.
C)  They have relatively small amplitudes compared to their very long wavelengths.
D)  They are easily seen at sea but are lost in the swell and breaking waves along a coast.E) A) and D)
F) A) and C)

Question 6

The term, tsunami, means "harbour wave" in Japanese.

Accepted Answer

A) True 
 B)False

Question 7

In collecting historic and geologic data on the geographic extent of rupture zones for great earthquakes ________.

Accepted Answer

A)  individual rupture zones tend to occur adjacent to one another, without appreciable overlap, tracing out the plate boundary
B)  a clear pattern is bound to emerge eventually, if only we wait long enough
C)  zones of rupture for a singe great earthquake string out along the fault intermittently with intact regions like tears on a dotted line
D)  zones of rupture tend to be the same size and are sequentially located along the entire length of the fault, clearly indicating exactly which area is the next to breakE) B) and C)
F) A) and B)

Question 8

The energy released by an earthquake is very intense, and felt just as strongly in distant places, in accordance with its magnitude.

Accepted Answer

A) True 
 B)False

Question 9

Briefly relate large earthquakes to pre-existing faults.

Accepted Answer

Large earthquakes require large pre-exis...

Question 10

Currently, the science of short range earthquake prediction is far more reliable than fuzzy long-range forecasts.

Accepted Answer

A) True 
 B)False

Question 11

On earthquake distribution maps, the boundaries of the Earth's tectonic plates are shown as zones of high seismic activity.

Accepted Answer

A) True 
 B)False

Question 12

How does underground nuclear weapons testing help the science of seismology?

Accepted Answer

Precise times and locations fo...

Question 13

How does a seismograph detect vibrations from the passing wave front of an earthquake?

Accepted Answer

A)  The whole instrument moves up and down (or back and forth) on the ground, so that it starts jiggling a little weight inside that trips the detector to record the earthquake.
B)  The instrument is anchored to the ground or buried in a vault so that it is stationary with respect to the earth.When the instrument moves, the suspended mass inside is relatively stationary due to inertia.The relative motion registers the quake.
C)  The instrument vibrates with the ground as it rolls along a track above the hyypocentre.
D)  The wave front seeks out the instrument which stops vibrating when the wave front reaches it.E) B) and C)
F) A) and B)

Question 14

What are the Earth's three most distinctive internal regions (layers)based on composition?

Accepted Answer

crust, man...

Question 15

What is observed in paleoseismology?

Accepted Answer

Geologic sequences of layered ...

Question 16

If the P, S, and surface waves arrive almost simultaneously, the seismic recording station is virtually at the epicentre of the earthquake.

Accepted Answer

A) True 
 B)False

Question 17

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases.
-Choose the option that does not fit the pattern.

Accepted Answer

A)  Modified Mercalli
B)  energy
C)  Richter
D)  amplitudeE) None of the above
F) All of the above

Question 18

What are the smaller magnitude quakes that follow a major earthquake?

Accepted Answer

A)  aftershocks
B)  airshocks
C)  hyposhocks
D)  epishocksE) All of the above
F) C) and D)

Question 19

________ is the Japanese word, commonly used by scientists, to denote seismic sea waves induced by earthquakes or other disturbances that suddenly shift the depth of the seabed.

Accepted Answer

The answer of ________ is the Japanese word, commonly used...

Question 20

If you are on the shoreline, the first warning of an approaching tsunami is the loud, low rumble of the causative earthquake.

Accepted Answer

A) True 
 B)False

Exam 10: Earthquakes and Earth's Interior

The energy released by an earthquake is very intense, and felt just as strongly in distant places, in accordance with its magnitude.

Correct AnswerverifiedShow Answer

What are the smaller magnitude quakes that follow a major earthquake?

Correct AnswerverifiedShow Answer

Currently, the science of short range earthquake prediction is far more reliable than fuzzy long-range forecasts.

Correct AnswerverifiedShow Answer

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

Correct AnswerverifiedShow Answer

How does a seismograph detect vibrations from the passing wave front of an earthquake?

Correct AnswerverifiedShow Answer

On earthquake distribution maps, the boundaries of the Earth's tectonic plates are shown as zones of high seismic activity.

Correct AnswerverifiedShow Answer

Which one of the following best characterizes tsunamis?

Correct AnswerverifiedShow Answer

Seismic gaps are ________.

Correct AnswerverifiedShow Answer

Briefly relate large earthquakes to pre-existing faults.

Correct AnswerverifiedLarge earthquakes require large pre-exis...View AnswerShow Answer

P waves can travel through solids and liquids but not through gases.

Correct AnswerverifiedShow Answer

What are the Earth's three most distinctive internal regions (layers)based on composition?

Correct Answerverifiedcrust, man...View AnswerShow Answer

If you are on the shoreline, the first warning of an approaching tsunami is the loud, low rumble of the causative earthquake.

Correct AnswerverifiedShow Answer

Which is the correct relationship for the relative velocities of the different types of seismic waves?

Correct AnswerverifiedShow Answer

The term, tsunami, means "harbour wave" in Japanese.

Correct AnswerverifiedShow Answer

________ have the highest velocities.

Correct AnswerverifiedShow Answer

How does underground nuclear weapons testing help the science of seismology?

Correct AnswerverifiedPrecise times and locations fo...View AnswerShow Answer

In collecting historic and geologic data on the geographic extent of rupture zones for great earthquakes ________.

Correct AnswerverifiedShow Answer

________ is the Japanese word, commonly used by scientists, to denote seismic sea waves induced by earthquakes or other disturbances that suddenly shift the depth of the seabed.

Correct AnswerverifiedShow Answer

What is observed in paleoseismology?

Correct AnswerverifiedGeologic sequences of layered ...View AnswerShow Answer

If the P, S, and surface waves arrive almost simultaneously, the seismic recording station is virtually at the epicentre of the earthquake.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Large earthquakes require large pre-exis...
View Answer

Correct Answer
verified

Correct Answer
verified
crust, man...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Precise times and locations fo...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Geologic sequences of layered ...
View Answer

Correct Answer
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