Question 1

A great earthquake is one

Accepted Answer

A)  that lasts more than 5 minutes. 
B)  with magnitude 8 and greater. 
C)  that kills more than 100,000 people. 
D)  that causes a tsunami. 
E)  that has many different effects, such as landslides, liquefaction, etc. 
A)  that lasts more than 5 minutes. 
B)  with magnitude 8 and greater. 
C)  that kills more than 100,000 people. 
D)  that causes a tsunami. 
E)  that has many different effects, such as landslides, liquefaction, etc. B

Question 2

What is liquefaction and what causes it?

Accepted Answer

Intense shaking during an earthquake can cause water-saturated sediment to release the water turning the sediment into a soupy mix,which has no mechanical strength.Structures built on water-saturated sediment tend to collapse because their foundations lose cohesion.

Question 3

At present,an earthquake warning system could provide up to a one minute warning to regions far enough away from the epicentre of an earthquake.Such a warning system is based on the difference between

Accepted Answer

A)  P-wave and S-wave velocities. 
B)  P wave and surface wave velocities. 
C)  radio wave and seismic wave velocities. 
D)  sound wave and seismic wave velocities. 
E)  ultrasonic wave and seismic wave velocities. 
A)  P-wave and S-wave velocities. 
B)  P wave and surface wave velocities. 
C)  radio wave and seismic wave velocities. 
D)  sound wave and seismic wave velocities. 
E)  ultrasonic wave and seismic wave velocities. C

Question 4

The most powerful seismic event in recent history was recorded in

Accepted Answer

A)  1960, Chile. 
B)  1985, Mexico City. 
C)  2011, Japan. 
D)  1964, Alaska. 
E)  2004, Indonesia. 
A)  1960, Chile. 
B)  1985, Mexico City. 
C)  2011, Japan. 
D)  1964, Alaska. 
E)  2004, Indonesia.

Question 5

Because intraplate earthquakes occur within lithospheric plates,away from boundaries,their effects are limited and result in lesser damage.

Accepted Answer

A) True 
 B)False

Question 6

List three of the four most important factors that determine the shaking people experience in an earthquake.

Accepted Answer

Distance to the focu

Question 7

Mexico City is particularly susceptible to earthquake damage because

Accepted Answer

A)  most of the buildings do not meet building codes. 
B)  the city is built on ancient lake sediments, which amplify seismic shaking. 
C)  the city is built directly across a major strike-slip fault, like the San Andreas Fault. 
D)  Mexico City is built at a plate tectonic boundary. 
E)  earthquakes typically dislodge massive landslides into Mexico City from the surrounding mountains. 
A)  most of the buildings do not meet building codes. 
B)  the city is built on ancient lake sediments, which amplify seismic shaking. 
C)  the city is built directly across a major strike-slip fault, like the San Andreas Fault. 
D)  Mexico City is built at a plate tectonic boundary. 
E)  earthquakes typically dislodge massive landslides into Mexico City from the surrounding mountains.

Question 8

In earthquake-prone zones like Seattle,Vancouver or Tokyo,satellite/radio earthquake warning systems could provide warnings up to one minute before shaking occurs.What use is such a short warning time?

Accepted Answer

A one minute warning would not allow for

Question 9

On the moment magnitude scale,a magnitude 7 earthquake releases about

Accepted Answer

A)  twice as much energy as a magnitude 6 earthquake. 
B)  10 times as much energy as a magnitude 6 earthquake. 
C)  25 times as much energy as a magnitude 6 earthquake. 
D)  32 times as much energy as a magnitude 6 earthquake. 
E)  100 times as much energy as a magnitude 6 earthquake. 
A)  twice as much energy as a magnitude 6 earthquake. 
B)  10 times as much energy as a magnitude 6 earthquake. 
C)  25 times as much energy as a magnitude 6 earthquake. 
D)  32 times as much energy as a magnitude 6 earthquake. 
E)  100 times as much energy as a magnitude 6 earthquake.

Question 10

Some human activities trigger earthquakes.

Accepted Answer

A) True 
 B)False

Question 11

Typically,earthquake tragedy in one community stimulates other communities to put more resources toward earthquake preparedness.

Accepted Answer

A) True 
 B)False

Question 12

Explain why earthquakes of similar magnitude can lead to large differences in numbers of casualties and damage.

Accepted Answer

There are a number of effects other than

Question 13

If you're indoors and you feel shaking from an earthquake,of the following choices,where is the safest place to be?

Accepted Answer

A)  in an elevator 
B)  next to a window 
C)  in a doorway with a door attached to it 
D)  near a tall cabinet 
E)  under a table 
A)  in an elevator 
B)  next to a window 
C)  in a doorway with a door attached to it 
D)  near a tall cabinet 
E)  under a table

Question 14

The New Madrid Earthquakes are examples of

Accepted Answer

A)  intraplate earthquakes. 
B)  interplate earthquakes. 
C)  subduction zone earthquakes. 
D)  stability earthquakes. 
E)  aftershocks. 
A)  intraplate earthquakes. 
B)  interplate earthquakes. 
C)  subduction zone earthquakes. 
D)  stability earthquakes. 
E)  aftershocks.

Question 15

In the 1906 San Francisco earthquake what percentage of the damage was due to the fires that were a secondary effect of the quake?

Accepted Answer

A)  5% 
B)  10% 
C)  25% 
D)  50% 
E)  80% 
A)  5% 
B)  10% 
C)  25% 
D)  50% 
E)  80%

Question 16

Of the four types of seismic waves produced by earthquakes,these types of waves roll the ground like waves at sea.

Accepted Answer

A)  P waves 
B)  S waves 
C)  Love waves 
D)  body waves 
E)  Rayleigh waves 
A)  P waves 
B)  S waves 
C)  Love waves 
D)  body waves 
E)  Rayleigh waves

Question 17

What are slow earthquakes and how do they differ from other seismic events?

Accepted Answer

they are produced by fault rup

Question 18

When movement occurs along a normal fault,the hanging wall drops down compared to the footwall.

Accepted Answer

A) True 
 B)False

Question 19

Describe the process of liquefaction.

Accepted Answer

Shaking from an earthquake can increase

Question 20

On which tectonic plate is the city of Los Angeles,California located?

Accepted Answer

A)  North American Plate 
B)  Juan de Fuca Plate 
C)  Gorda Plate 
D)  Pacific Plate 
E)  Explorer Plate 
A)  North American Plate 
B)  Juan de Fuca Plate 
C)  Gorda Plate 
D)  Pacific Plate 
E)  Explorer Plate

A great earthquake is one

What is liquefaction and what causes it?

At present,an earthquake warning system could provide up to a one minute warning to regions far enough away from the epicentre of an earthquake.Such a warning system is based on the difference between

The most powerful seismic event in recent history was recorded in

Because intraplate earthquakes occur within lithospheric plates,away from boundaries,their effects are limited and result in lesser damage.

List three of the four most important factors that determine the shaking people experience in an earthquake.

Mexico City is particularly susceptible to earthquake damage because

In earthquake-prone zones like Seattle,Vancouver or Tokyo,satellite/radio earthquake warning systems could provide warnings up to one minute before shaking occurs.What use is such a short warning time?

On the moment magnitude scale,a magnitude 7 earthquake releases about

Some human activities trigger earthquakes.

Typically,earthquake tragedy in one community stimulates other communities to put more resources toward earthquake preparedness.

Explain why earthquakes of similar magnitude can lead to large differences in numbers of casualties and damage.

If you're indoors and you feel shaking from an earthquake,of the following choices,where is the safest place to be?

The New Madrid Earthquakes are examples of

In the 1906 San Francisco earthquake what percentage of the damage was due to the fires that were a secondary effect of the quake?

Of the four types of seismic waves produced by earthquakes,these types of waves roll the ground like waves at sea.

What are slow earthquakes and how do they differ from other seismic events?

When movement occurs along a normal fault,the hanging wall drops down compared to the footwall.

Describe the process of liquefaction.

On which tectonic plate is the city of Los Angeles,California located?

Introduction to Natural Hazards

Internal Structure of Earth and Plate Tectonics

Tsunamis

Volcanoes and Volcanic Eruptions

Landslides

Snow Avalanches

Subsidence and Soil Expansion and Contraction

River Flooding

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Waves, Currents, and Coastlines

Wildfires

Climate Change

Meteorite Impacts and Extinctions

Filters

Exam 3: Earthquakes

A great earthquake is one

What is liquefaction and what causes it?

At present,an earthquake warning system could provide up to a one minute warning to regions far enough away from the epicentre of an earthquake.Such a warning system is based on the difference between

The most powerful seismic event in recent history was recorded in

Because intraplate earthquakes occur within lithospheric plates,away from boundaries,their effects are limited and result in lesser damage.

List three of the four most important factors that determine the shaking people experience in an earthquake.

Mexico City is particularly susceptible to earthquake damage because

In earthquake-prone zones like Seattle,Vancouver or Tokyo,satellite/radio earthquake warning systems could provide warnings up to one minute before shaking occurs.What use is such a short warning time?

On the moment magnitude scale,a magnitude 7 earthquake releases about

Some human activities trigger earthquakes.

Typically,earthquake tragedy in one community stimulates other communities to put more resources toward earthquake preparedness.

Explain why earthquakes of similar magnitude can lead to large differences in numbers of casualties and damage.

If you're indoors and you feel shaking from an earthquake,of the following choices,where is the safest place to be?

The New Madrid Earthquakes are examples of

In the 1906 San Francisco earthquake what percentage of the damage was due to the fires that were a secondary effect of the quake?

Of the four types of seismic waves produced by earthquakes,these types of waves roll the ground like waves at sea.

What are slow earthquakes and how do they differ from other seismic events?

When movement occurs along a normal fault,the hanging wall drops down compared to the footwall.

Describe the process of liquefaction.

On which tectonic plate is the city of Los Angeles,California located?

Introduction to Natural Hazards

Internal Structure of Earth and Plate Tectonics

Tsunamis

Volcanoes and Volcanic Eruptions

Landslides

Snow Avalanches

Subsidence and Soil Expansion and Contraction

River Flooding

Atmosphere and Severe Weather

Hurricanes and Extratropical Cyclones

Waves, Currents, and Coastlines

Wildfires

Climate Change

Meteorite Impacts and Extinctions

Filters