Question 1

Aftershocks,generally,never result in any major destruction.

Accepted Answer

A) True 
 B)False

Question 2

The behavior when the rocks elastically snap back to their previous dimensions with the release of associated stress accompanied with sudden displacement is called

Accepted Answer

A)  Plastic rebound. 
B)  Elastic bounce back. 
C)  Elastic rebound. 
D)  None of the options are correct. 
A)  Plastic rebound. 
B)  Elastic bounce back. 
C)  Elastic rebound. 
D)  None of the options are correct.

Question 3

S-waves

Accepted Answer

A)  Are shear waves that move more slowly than P-waves. 
B)  Are first to arrive at seismic monitoring stations. 
C)  Are more destructive than surface waves. 
D)  Both b and c are correct. 
A)  Are shear waves that move more slowly than P-waves. 
B)  Are first to arrive at seismic monitoring stations. 
C)  Are more destructive than surface waves. 
D)  Both b and c are correct.

Question 4

Liquefaction is

Accepted Answer

A)  Flooding of coastal areas due to tectonic subsidence. 
B)  A quicksand-like condition arising in some wet soils during earthquakes. 
C)  Flooding caused by tsunamis. 
D)  Flooding caused by dam failure resulting from an earthquake. 
A)  Flooding of coastal areas due to tectonic subsidence. 
B)  A quicksand-like condition arising in some wet soils during earthquakes. 
C)  Flooding caused by tsunamis. 
D)  Flooding caused by dam failure resulting from an earthquake.

Question 5

Shallow-focus earthquakes commonly occur

Accepted Answer

A)  In subduction zones. 
B)  Along transform faults, such as the San Andreas fault in California. 
C)  At spreading ridges. 
D)  Within the interior of plates. 
A)  In subduction zones. 
B)  Along transform faults, such as the San Andreas fault in California. 
C)  At spreading ridges. 
D)  Within the interior of plates.

Question 6

Southern Alaska remains an area of great earthquake hazard; it is located above a subduction zone.

Accepted Answer

A) True 
 B)False

Question 7

After an earthquake,rocks snap back elastically to their pre-stress condition.

Accepted Answer

A) True 
 B)False

Question 8

The filling of a reservoir behind a newly completed dam often generates earthquakes of small to moderate size.

Accepted Answer

A) True 
 B)False

Question 9

An old,failed rift under the central United States is believed to represent a zone of weakness in the lithosphere and a possible earthquake hazard zone.

Accepted Answer

A) True 
 B)False

Question 10

A locked section of fault is often identified by

Accepted Answer

A)  Creep. 
B)  Liquefaction. 
C)  Tsunamis. 
D)  A seismic gap. 
A)  Creep. 
B)  Liquefaction. 
C)  Tsunamis. 
D)  A seismic gap.

Question 11

Deep-focus earthquakes occur in subduction zones because

Accepted Answer

A)  Brittle lithosphere is carried to deeper depths in subduction zones. 
B)  Subduction zones represent particularly homogeneous regions of the earth's crust. 
C)  The mantle is less dense under subduction zones. 
D)  Seismic energy propagates toward the center of the earth under subduction zones. 
A)  Brittle lithosphere is carried to deeper depths in subduction zones. 
B)  Subduction zones represent particularly homogeneous regions of the earth's crust. 
C)  The mantle is less dense under subduction zones. 
D)  Seismic energy propagates toward the center of the earth under subduction zones.

Question 12

What resulted in most of the damage during the 1906 San Francisco earthquake?

Accepted Answer

A)  Ground failure 
B)  Tsunami 
C)  Liquefaction 
D)  Fire 
A)  Ground failure 
B)  Tsunami 
C)  Liquefaction 
D)  Fire

Question 13

Aftershocks are

Accepted Answer

A)  Large to small earthquakes that come after a large earthquake. 
B)  Unlikely to cause damage. 
C)  Predictable from the primary earthquake's characteristics. 
D)  Of short duration and occur within a period of a few hours after the major earthquake. 
A)  Large to small earthquakes that come after a large earthquake. 
B)  Unlikely to cause damage. 
C)  Predictable from the primary earthquake's characteristics. 
D)  Of short duration and occur within a period of a few hours after the major earthquake.

Question 14

Compressional seismic body waves are

Accepted Answer

A)  P waves. 
B)  S waves. 
C)  Surface waves. 
D)  Intensity waves. 
A)  P waves. 
B)  S waves. 
C)  Surface waves. 
D)  Intensity waves.

Question 15

Tsunami travel times across a large body of water,such as the Pacific Ocean,are typically of the order of several days.

Accepted Answer

A) True 
 B)False

Question 16

When one speaks of "earthquake-resistant" buildings,this means buildings that will remain fully functional after an earthquake.

Accepted Answer

A) True 
 B)False

Question 17

Tsunamis

Accepted Answer

A)  Are sometimes called "tidal waves" but have nothing to do with tides. 
B)  Travel very slowly and dissipate a few kilometers from their point of origin. 
C)  Cross the open ocean as huge breakers, sweeping ships aside. 
D)  All of the choices are correct. 
A)  Are sometimes called "tidal waves" but have nothing to do with tides. 
B)  Travel very slowly and dissipate a few kilometers from their point of origin. 
C)  Cross the open ocean as huge breakers, sweeping ships aside. 
D)  All of the choices are correct.

Question 18

A locked section of a fault is a very safe place to live because,by definition,it will not slip.

Accepted Answer

A) True 
 B)False

Question 19

Earthquake waves are recorded using an instrument called

Accepted Answer

A)  Seismometer. 
B)  Seismogram. 
C)  Seismograph. 
D)  Seismocolumn. 
A)  Seismometer. 
B)  Seismogram. 
C)  Seismograph. 
D)  Seismocolumn.

Question 20

Following the 1989 Loma Prieta earthquake,the risk of a major earthquake on the peninsular segment of the San Andreas fault

Accepted Answer

A)  Is estimated to have increased; that segment remains locked. 
B)  Has been eliminated because all the built-up stress has been released. 
C)  Has been reduced as a consequence of active earthquake-prevention measures now being undertaken. 
D)  Is no longer a fear, because the Loma Prieta quake confirmed the reliability of earthquake-prediction techniques. 
A)  Is estimated to have increased; that segment remains locked. 
B)  Has been eliminated because all the built-up stress has been released. 
C)  Has been reduced as a consequence of active earthquake-prevention measures now being undertaken. 
D)  Is no longer a fear, because the Loma Prieta quake confirmed the reliability of earthquake-prediction techniques.

Aftershocks,generally,never result in any major destruction.

The behavior when the rocks elastically snap back to their previous dimensions with the release of associated stress accompanied with sudden displacement is called

S-waves

Liquefaction is

Shallow-focus earthquakes commonly occur

Southern Alaska remains an area of great earthquake hazard; it is located above a subduction zone.

After an earthquake,rocks snap back elastically to their pre-stress condition.

The filling of a reservoir behind a newly completed dam often generates earthquakes of small to moderate size.

An old,failed rift under the central United States is believed to represent a zone of weakness in the lithosphere and a possible earthquake hazard zone.

A locked section of fault is often identified by

Deep-focus earthquakes occur in subduction zones because

What resulted in most of the damage during the 1906 San Francisco earthquake?

Aftershocks are

Compressional seismic body waves are

Tsunami travel times across a large body of water,such as the Pacific Ocean,are typically of the order of several days.

When one speaks of "earthquake-resistant" buildings,this means buildings that will remain fully functional after an earthquake.

Tsunamis

A locked section of a fault is a very safe place to live because,by definition,it will not slip.

Earthquake waves are recorded using an instrument called

Following the 1989 Loma Prieta earthquake,the risk of a major earthquake on the peninsular segment of the San Andreas fault

Planet and Population: An Overview

Rocks and Minerals-A First Look

Plate Tectonics

Volcanoes

Streams and Flooding

Coastal Zones and Processes

Mass Movements

Ice and Glaciers,wind and Deserts

Climate-Past, present, and Future

Ground Water and Water Resources

Weathering, erosion, and Soil Resources

Mineral and Rock Resources

Energy Resources-Fossil Fuels

Energy Resources-Alternative Sources

Waste Disposal

Water Pollution

Air Pollution

Environmental Law and Policy

Land-Use Planning and Engineering Geology

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Exam 4: Earthquakes

Aftershocks,generally,never result in any major destruction.

The behavior when the rocks elastically snap back to their previous dimensions with the release of associated stress accompanied with sudden displacement is called

S-waves

Liquefaction is

Shallow-focus earthquakes commonly occur

Southern Alaska remains an area of great earthquake hazard; it is located above a subduction zone.

After an earthquake,rocks snap back elastically to their pre-stress condition.

The filling of a reservoir behind a newly completed dam often generates earthquakes of small to moderate size.

An old,failed rift under the central United States is believed to represent a zone of weakness in the lithosphere and a possible earthquake hazard zone.

A locked section of fault is often identified by

Deep-focus earthquakes occur in subduction zones because

What resulted in most of the damage during the 1906 San Francisco earthquake?

Aftershocks are

Compressional seismic body waves are

Tsunami travel times across a large body of water,such as the Pacific Ocean,are typically of the order of several days.

When one speaks of "earthquake-resistant" buildings,this means buildings that will remain fully functional after an earthquake.

Tsunamis

A locked section of a fault is a very safe place to live because,by definition,it will not slip.

Earthquake waves are recorded using an instrument called

Following the 1989 Loma Prieta earthquake,the risk of a major earthquake on the peninsular segment of the San Andreas fault

Planet and Population: An Overview

Rocks and Minerals-A First Look

Plate Tectonics

Volcanoes

Streams and Flooding

Coastal Zones and Processes

Mass Movements

Ice and Glaciers,wind and Deserts

Climate-Past, present, and Future

Ground Water and Water Resources

Weathering, erosion, and Soil Resources

Mineral and Rock Resources

Energy Resources-Fossil Fuels

Energy Resources-Alternative Sources

Waste Disposal

Water Pollution

Air Pollution

Environmental Law and Policy

Land-Use Planning and Engineering Geology

Filters