Question 1

________ is the maximum possible damage designation on the Mercalli scale.

Accepted Answer

A)  XII
B)  12
C)  X
D)  10E) A) and D)
F) None of the above

Question 2

Where do all large earthquakes occur?

Accepted Answer

On large, pre-existi...

Question 3

________ discovered the crust-mantle seismic discontinuity in ________, proving that the Earth was not internally homogeneous but layered.

Accepted Answer

A)  Beno Gutenberg; 1914
B)  Arne Sachnussen, 1885
C)  Charles Richter; 1935
D)  Andrija Mohorovicic; 1909E) C) and D)
F) B) and C)

Question 4

Tsunami are only serious threats to coastal areas near an earthquake epicentre because the waves have lost most of their energy after moving across 200 kilometres of open water.Is this statement correct? Why or why not?

Accepted Answer

No.While tsunami amplitudes are low in t...

Question 5

How is Moment Magnitude (MW ) calculated?

Accepted Answer

A)  from surface wave magnitude measured one minute after the first P-wave arrival
B)  from the amount of building or other infrastructure damage in large earthquakes with more than one minute of of ground shaking
C)  from average fault displacement, average fault rupture area, and rock shear strength in the fault zone or by measuring very long period waves on special long period seismometers, triggered to record only very large earthquakes
D)  from S-wave magnitude measured one minute before the last P-wave arrivalE) A) and B)
F) All of the above

Question 6

The ________ magnitude scale is a measure of the energy released as judged from the amplitude of the largest seismic wave.It does not directly measure the extent of building damage.

Accepted Answer

A)  modified Mercalli
B)  moment magnitude
C)  open-ended Richter
D)  shaklee naturalE) None of the above
F) A) and C)

Question 7

What causes mud and sand volcanoes or geysers in a modern delta or low tide beach setting?

Accepted Answer

A)  gas venting from underlying hydrocarbon deposits
B)  liquefaction, dewatering, and compaction of water saturated materials at depth often caused by seismic shaking or loading changes
C)  new volcanic activity boiling the water beneath the edge of the sea
D)  meteorite impacts during solar flaresE) B) and C)
F) A) and B)

Question 8

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)  P wave
B)  S wave
C)  surface wave
D)  body waveE) B) and C)
F) C) and D)

Question 9

The top of the ________ is marked by the Moho discontinuity.

Accepted Answer

A)  mantle
B)  inner core
C)  crust
D)  outer coreE) None of the above
F) A) and D)

Question 10

How can the exact distance to an earthquake be determined if you only have a single seismic station to record it?

Accepted Answer

A)  by measuring the P-wave arrival time and its intensity and using a formula
B)  by measuring the duration of the surface wave train
C)  by measuring the difference between the P and S arrival times and using a travel time curve for arrival versus distance
D)  You dig up your seismograph and take it to a destitute seismologist and offer to trade the instrument for the answer to your question!E) A) and D)
F) A) and C)

Question 11

________ are not transmitted through the outer core.

Accepted Answer

The answer of ________ are not transmitted through the outer...

Question 12

Rank these "felt reports" for an earthquake affecting southernmost Vancouver Island, based on their Mercalli intensity value:
A: Everyone in the Happy Valley suburb runs outside, all newer houses survive but one old barn collapsed.
B: People inside the shops along Esquimalt Road felt it but few outside did so.The guy in the dry
cleaners thought a truck had hit the building.
C: One and two storey wooden houses along East Sooke Road are destroyed, the small bridge across 	the head of the inlet collapsed as did rock walls along Gillespie Road.Open cracks are prevalent in unconsolidated sediments around Sooke Inlet and there was a small mud geyser near Whiffen Spit.
D: Tilted telephone poles and scaffolding outside a leaky condo pulled away near 6 mile Pub in Colwood.Many people outside noted tall trees and poles that seemed to sway without the wind blowing.

Accepted Answer

A: VII
B:...

Question 13

Which buildings fare the worst, close to the epicentre of large earthquakes?

Accepted Answer

A)  single storey stick-woodframe houses (like the second Little Pig) 
B)  3-4 storey woodframe "walk-up" apartments
C)  unreinforced masonry buildings (Like the third Little Pig's brick or stone house) 
D)  high rise office towers and many storey apartmentsE) C) and D)
F) None of the above

Question 14

Briefly describe how an earthquake's intensity differs from its magnitude.

Accepted Answer

Intensity measures qualitative...

Question 15

Which of the following foundation materials is most stable during earthquake shaking?

Accepted Answer

A)  bedrock
B)  unconsolidated moist soil
C)  water-saturated sand
D)  sand and mudE) A) and C)
F) None of the above

Question 16

What was the largest Richter magnitude ever recorded for an earthquake?

Accepted Answer

A)  2.0
B)  5.4
C)  8.9
D)  10.0E) A) and D)
F) None of the above

Question 17

The ________ magnitude scale, better for the largest earthquakes, is a measure of the energy released as judged from the displacement on the fault, its surface area and the rock's shear strength.It can also be calculated from very long period seismograms.

Accepted Answer

A)  modified Mercalli
B)  moment magnitude
C)  open ended Richter
D)  PinochetE) A) and D)
F) B) and C)

Question 18

Earthquakes result from the sudden release of elastic strain energy previously stored in rocks surrounding a zone of fault movement.

Accepted Answer

A) True 
 B)False

Question 19

The epicentre of an earthquake is the ________.

Accepted Answer

A)  point where the fault cracking initiates
B)  surface location directly above the point where the fault slip initiates
C)  point where the minimum ground shaking is recorded
D)  point of most costly structural damage associated with ground shakingE) B) and D)
F) A) and C)

Question 20

The ________ core is probably solid.

Accepted Answer

The answer of The ________ core is probably solid....

Exam 10: Earthquakes and Earth's Interior

Tsunami are only serious threats to coastal areas near an earthquake epicentre because the waves have lost most of their energy after moving across 200 kilometres of open water.Is this statement correct? Why or why not?

Correct Answer
verified
No.While tsunami amplitudes are low in t...
View Answer

The epicentre of an earthquake is the ________.

Correct Answer
verified

Which of the following foundation materials is most stable during earthquake shaking?

Correct Answer
verified

What causes mud and sand volcanoes or geysers in a modern delta or low tide beach setting?

Correct Answer
verified

discovered the crust-mantle seismic discontinuity in , proving that the Earth was not internally homogeneous but layered.

Correct Answer
verified

The ________ core is probably solid.

Correct Answer
verified

The ________ magnitude scale is a measure of the energy released as judged from the amplitude of the largest seismic wave.It does not directly measure the extent of building damage.

Correct Answer
verified

Earthquakes result from the sudden release of elastic strain energy previously stored in rocks surrounding a zone of fault movement.

Correct Answer
verified

The top of the ________ is marked by the Moho discontinuity.

Correct Answer
verified

Correct Answer
verified
A: VII
B:...
View Answer

How can the exact distance to an earthquake be determined if you only have a single seismic station to record it?

Correct Answer
verified

The ________ magnitude scale, better for the largest earthquakes, is a measure of the energy released as judged from the displacement on the fault, its surface area and the rock's shear strength.It can also be calculated from very long period seismograms.

Correct Answer
verified

What was the largest Richter magnitude ever recorded for an earthquake?

Correct Answer
verified

Which buildings fare the worst, close to the epicentre of large earthquakes?

Correct Answer
verified

Briefly describe how an earthquake's intensity differs from its magnitude.

Correct Answer
verified
Intensity measures qualitative...
View Answer

________ are not transmitted through the outer core.

Correct Answer
verified

How is Moment Magnitude (MW ) calculated?

Correct Answer
verified

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 Answer
verified

Where do all large earthquakes occur?

Correct Answer
verified
On large, pre-existi...
View Answer

________ is the maximum possible damage designation on the Mercalli scale.

Correct Answer
verified

Exam 10: Earthquakes and Earth's Interior

Tsunami are only serious threats to coastal areas near an earthquake epicentre because the waves have lost most of their energy after moving across 200 kilometres of open water.Is this statement correct? Why or why not?

Correct AnswerverifiedNo.While tsunami amplitudes are low in t...View AnswerShow Answer

The epicentre of an earthquake is the ________.

Correct AnswerverifiedShow Answer

Which of the following foundation materials is most stable during earthquake shaking?

Correct AnswerverifiedShow Answer

What causes mud and sand volcanoes or geysers in a modern delta or low tide beach setting?

Correct AnswerverifiedShow Answer

________ discovered the crust-mantle seismic discontinuity in ________, proving that the Earth was not internally homogeneous but layered.

Correct AnswerverifiedShow Answer

The ________ core is probably solid.

Correct AnswerverifiedShow Answer

The ________ magnitude scale is a measure of the energy released as judged from the amplitude of the largest seismic wave.It does not directly measure the extent of building damage.

Correct AnswerverifiedShow Answer

Earthquakes result from the sudden release of elastic strain energy previously stored in rocks surrounding a zone of fault movement.

Correct AnswerverifiedShow Answer

The top of the ________ is marked by the Moho discontinuity.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedA: VII B:...View AnswerShow Answer

How can the exact distance to an earthquake be determined if you only have a single seismic station to record it?

Correct AnswerverifiedShow Answer

The ________ magnitude scale, better for the largest earthquakes, is a measure of the energy released as judged from the displacement on the fault, its surface area and the rock's shear strength.It can also be calculated from very long period seismograms.

Correct AnswerverifiedShow Answer

What was the largest Richter magnitude ever recorded for an earthquake?

Correct AnswerverifiedShow Answer

Which buildings fare the worst, close to the epicentre of large earthquakes?

Correct AnswerverifiedShow Answer

Briefly describe how an earthquake's intensity differs from its magnitude.

Correct AnswerverifiedIntensity measures qualitative...View AnswerShow Answer

________ are not transmitted through the outer core.

Correct AnswerverifiedShow Answer

How is Moment Magnitude (MW ) calculated?

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

Where do all large earthquakes occur?

Correct AnswerverifiedOn large, pre-existi...View AnswerShow Answer

________ is the maximum possible damage designation on the Mercalli scale.

Correct AnswerverifiedShow Answer

Correct Answer
verified
No.While tsunami amplitudes are low in t...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

discovered the crust-mantle seismic discontinuity in , proving that the Earth was not internally homogeneous but layered.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A: VII
B:...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Intensity measures qualitative...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
On large, pre-existi...
View Answer

Correct Answer
verified