Question 1

The type of fault shown in this figure is a

Accepted Answer

A)  dip-slip fault.
B)  normal fault.
C)  strike-slip fault.
D)  reverse fault.E) A) and B)
F) None of the above

Question 2

The most dangerous type of volcano is a

Accepted Answer

A)  cinder cone.
B)  cinder cone whose magmas are interacting with groundwater.
C)  huge shield volcano.
D)  composite volcano.E) None of the above
F) All of the above

Question 3

Which of the following resulted from the large 2011 Tohuku earthquake in Japan?

Accepted Answer

A)  Severe ground shaking that damaged buildings near the earthquake
B)  A deadly tsunami
C)  Destruction of a nuclear power plant
D)  All of these are correct.E) B) and C)
F) C) and D)

Question 4

Earthquakes at Mount St.Helens prior to the major eruption in 1980 were caused by

Accepted Answer

A)  magma rising in the volcano.
B)  tectonic plate movement.
C)  landslides.D) None of the above
E) A) and C)

Question 5

If an earthquake occurred near the oceanic trench in this figure,which one of the following hazards is likely to threaten the town of Ashton?

Accepted Answer

A)  Destruction by a tsunami
B)  Liquefaction of soils and other weak materials because of shaking
C)  Landslides and other slope failures caused by shaking
D)  All of these are correct.E) A) and D)
F) C) and D)

Question 6

The dark igneous features shown in this photograph are

Accepted Answer

A)  dikes.
B)  sills.
C)  volcanic necks.
D)  batholiths.E) A) and B)
F) None of the above

Question 7

Which of the following are ways that viscosity affects gases in magma?

Accepted Answer

A)  Viscous magma prevents gas from escaping easily.
B)  Abundant silica chains in viscous magma allow gas to pass quickly through the magma.
C)  Less viscous magma allows gas to escape,which can lead to very explosive eruptions.
D)  All of these are correct.E) B) and C)
F) A) and C)

Question 8

Which of the following sites would most likely have composite volcanoes? A is on an island arc,B is in the Andes,C is near Hawaii,D is along a midocean ridge.

Accepted Answer

A)  A and B
B)  B and C
C)  C and D
D)  A and C
E)  B and DF) All of the above
G) A) and E)

Question 9

Which of the following is a location in which flood basalts erupted?

Accepted Answer

A)  Columbia Plateau
B)  Texas Gulf Coast
C)  HawaiiD) All of the above
E) B) and C)

Question 10

Which of the following was common to the eruptions of Vesuvius and Mount St.Helens?

Accepted Answer

A)  Both are composite volcanoes
B)  Earthquakes before the eruption
C)  Small eruptions of tephra
D)  Pyroclastic flows
E)  All of these are correct.F) A) and D)
G) A) and C)

Question 11

Which of the following is not a way in which volcanic domes are commonly destroyed?

Accepted Answer

A)  collapse into emptied magma chambers below
B)  collapse of steep flanks into block and ash flows
C)  internally derived explosions from built-up gas pressureD) A) and B)
E) A) and C)

Question 12

How does the strength of continental crust vary with depth?

Accepted Answer

A)  Rocks become stronger with depth and then get weaker deep in the crust.
B)  Rocks weaken with depth and then get stronger deep in the crust.
C)  Rocks systematically get stronger from the surface to deep in the crust.
D)  Rocks systematically get weaker from the surface to deep in the crust.E) A) and B)
F) A) and C)

Question 13

Which of the following is not a way that volcanoes and magma can cause earthquakes?

Accepted Answer

A)  Volcanic explosions cause seismic waves.
B)  Volcanoes can load the crust,causing faulting and earthquakes.
C)  Many volcanoes have steep,unstable slopes that can cause landslides that shake the ground.
D)  Moving magma within or below the volcano can cause earthquakes.
E)  All of these are ways that volcanoes can cause earthquakes.F) A) and D)
G) D) and E)

Question 14

At what depth do gas bubbles have the most effect on magma?

Accepted Answer

A)  When the magma first forms,before the bubbles can dissolve into the magma
B)  At moderate depths,when the magma is moving rapidly through the conduit
C)  At very shallow levels,such as within the volcano
D)  None of these are correct.E) A) and C)
F) B) and C)

Question 15

A single volcano may produce

Accepted Answer

A)  only explosive eruptions.
B)  only nonexplosive eruptions.
C)  both explosive and nonexplosive eruptions.
D)  either explosive or nonexplosive eruptions,but never both.E) None of the above
F) All of the above

Question 16

Steep-sided hills of viscous lava that pile up over volcanic vents are known as

Accepted Answer

A)  volcanic domes.
B)  cinder cones.
C)  composite volcanoes.D) All of the above
E) A) and B)

Question 17

Which of the following is a major source of earthquakes associated with continental collisions?

Accepted Answer

A)  Thrust faults
B)  Slip along the plate boundary
C)  Faulting in a wide area adjacent to the collision zone
D)  All of these are correct.E) B) and C)
F) A) and D)

Question 18

Shield volcanoes have low slopes primarily because

Accepted Answer

A)  the low viscosity of basaltic magma allows it to flow downhill for long distances.
B)  they never erupt from the same place twice.
C)  their abundant ash layers spread out large distances.D) None of the above
E) All of the above

Question 19

What type of volcanic eruption is probably shown in this photograph?

Accepted Answer

A)  Fire fountain
B)  Basaltic lava flow
C)  Felsic lava flow
D)  Caldera eruptionE) A) and B)
F) A) and D)

Question 20

What type of evidence was used in the Investigation to locate where the earthquake occurred?

Accepted Answer

A)  Photographs showing the amount of damage in different places
B)  Newspaper accounts of where buildings were destroyed
C)  Newspaper accounts recording eyewitness observations
D)  Seismograms from three stations
E)  All of these are correct.F) None of the above
G) A) and D)

Exam 11: Volcanoes,deformation,and Earthquakes

Which of the following resulted from the large 2011 Tohuku earthquake in Japan?

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The type of fault shown in this figure is a

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What type of volcanic eruption is probably shown in this photograph?

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Which of the following is a major source of earthquakes associated with continental collisions?

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Shield volcanoes have low slopes primarily because

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Which of the following is not a way in which volcanic domes are commonly destroyed?

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Which of the following was common to the eruptions of Vesuvius and Mount St.Helens?

Correct AnswerverifiedShow Answer

If an earthquake occurred near the oceanic trench in this figure,which one of the following hazards is likely to threaten the town of Ashton?

Correct AnswerverifiedShow Answer

A single volcano may produce

Correct AnswerverifiedShow Answer

Which of the following is a location in which flood basalts erupted?

Correct AnswerverifiedShow Answer

Which of the following sites would most likely have composite volcanoes? A is on an island arc,B is in the Andes,C is near Hawaii,D is along a midocean ridge.

Correct AnswerverifiedShow Answer

Earthquakes at Mount St.Helens prior to the major eruption in 1980 were caused by

Correct AnswerverifiedShow Answer

What type of evidence was used in the Investigation to locate where the earthquake occurred?

Correct AnswerverifiedShow Answer

At what depth do gas bubbles have the most effect on magma?

Correct AnswerverifiedShow Answer

Steep-sided hills of viscous lava that pile up over volcanic vents are known as

Correct AnswerverifiedShow Answer

How does the strength of continental crust vary with depth?

Correct AnswerverifiedShow Answer

The most dangerous type of volcano is a

Correct AnswerverifiedShow Answer

The dark igneous features shown in this photograph are

Correct AnswerverifiedShow Answer

Which of the following are ways that viscosity affects gases in magma?

Correct AnswerverifiedShow Answer

Which of the following is not a way that volcanoes and magma can cause earthquakes?

Correct AnswerverifiedShow Answer

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