Question 1

The largest earthquakes occur at

Accepted Answer

A) transform boundaries. 
B) intraplate settings. 
C) convergent boundaries. 
D) divergent boundaries. 
A) transform boundaries. 
B) intraplate settings. 
C) convergent boundaries. 
D) divergent boundaries.

Question 2

The modified Mercalli intensity scale measures

Accepted Answer

A) the amount of destruction caused by an earthquake. 
B) the amount of slip on a fault plane caused by an earthquake. 
C) the amplitude of the surface waves. 
D) the type of seismic wave in an earthquake. 
A) the amount of destruction caused by an earthquake. 
B) the amount of slip on a fault plane caused by an earthquake. 
C) the amplitude of the surface waves. 
D) the type of seismic wave in an earthquake.

Question 3

How long was the ground rupture created during the San Francisco earthquake of 1906?

Accepted Answer

A) 4 m 
B) 40 m 
C) 400 m 
D) 4000 m 
A) 4 m 
B) 40 m 
C) 400 m 
D) 4000 m

Question 4

A fault line long-term slip rate of 5 cm/year and slips 2.5 m when it moves.What is the recurrence interval of the fault?

Accepted Answer

A) 10 years 
B) 50 years 
C) 100 years 
D) 1000 years 
A) 10 years 
B) 50 years 
C) 100 years 
D) 1000 years

Question 5

Which of the following events released the most energy?

Accepted Answer

A) the eruption of Mount St.Helens 
B) the explosion of the Hiroshima atomic bomb 
C) the 1964 Alaska earthquake 
D) All of the above released similar amounts of energy. 
A) the eruption of Mount St.Helens 
B) the explosion of the Hiroshima atomic bomb 
C) the 1964 Alaska earthquake 
D) All of the above released similar amounts of energy.

Question 6

Whether a building will withstand ground shaking during an earthquake depends on

Accepted Answer

A) the engineering of the building. 
B) the intensity of the ground shaking. 
C) the material on which the building was built. 
D) the engineering of the building,the intensity of the ground shaking,and the material on which the building was built. 
A) the engineering of the building. 
B) the intensity of the ground shaking. 
C) the material on which the building was built. 
D) the engineering of the building,the intensity of the ground shaking,and the material on which the building was built.

Question 7

Which of the following earthquakes was the largest recorded earthquake?

Accepted Answer

A) 1906 San Francisco,California 
B) 1960 Chile 
C) 1923 Tokyo,Japan 
D) 1976 Tangshan,China 
A) 1906 San Francisco,California 
B) 1960 Chile 
C) 1923 Tokyo,Japan 
D) 1976 Tangshan,China

Question 8

What is the maximum amount of slip on a fault during an earthquake?

Accepted Answer

A) approximately 1 meter 
B) approximately 20 meters 
C) approximately 100 meters 
D) approximately 200 meters 
A) approximately 1 meter 
B) approximately 20 meters 
C) approximately 100 meters 
D) approximately 200 meters

Question 9

Fault mechanisms at subduction zones are called

Accepted Answer

A) megathrusts. 
B) reverse thrusts. 
C) compressional faults. 
D) megafaults. 
A) megathrusts. 
B) reverse thrusts. 
C) compressional faults. 
D) megafaults.

Question 10

Which of the following locations would be most likely to generate an earthquake magnitude 9 or higher?

Accepted Answer

A) Iceland 
B) Hawaii 
C) Sumatra 
D) United States 
A) Iceland 
B) Hawaii 
C) Sumatra 
D) United States

Question 11

Which of the following measurements collected from seismograph stations gives scientists information regarding the type of faulting that occurred during an earthquake?

Accepted Answer

A) the amount of slip 
B) the amplitude of the ground shaking 
C) the first motion of the P waves 
D) the time interval between the arrival of the P and S waves 
A) the amount of slip 
B) the amplitude of the ground shaking 
C) the first motion of the P waves 
D) the time interval between the arrival of the P and S waves

Question 12

Analysis of fault mechanisms indicates ___________ at divergent boundaries and _______ at transform boundaries.

Accepted Answer

A) compression; tension 
B) shear; compression 
C) tension; shear 
D) shear; tension 
A) compression; tension 
B) shear; compression 
C) tension; shear 
D) shear; tension

Question 13

As a rule of thumb aftershocks are typically ____ order(s)of magnitude ____ than the mainshock.

Accepted Answer

A) 1; higher 
B) 1; lower 
C) 2; higher 
D) 2; lower 
A) 1; higher 
B) 1; lower 
C) 2; higher 
D) 2; lower

Question 14

The energy released during a magnitude 8 earthquake is approximately ______ times larger than the energy released during a magnitude 6 earthquake.

Accepted Answer

A) two 
B) 10 
C) 100 
D) 1000 
A) two 
B) 10 
C) 100 
D) 1000

Question 15

Modern seismographs can measure displacements the width of a(n)

Accepted Answer

A) street. 
B) hand. 
C) hair. 
D) atom. 
A) street. 
B) hand. 
C) hair. 
D) atom.

Question 16

The costliest earthquake in recorded history occurred in

Accepted Answer

A) China. 
B) Chile. 
C) California. 
D) Japan. 
A) China. 
B) Chile. 
C) California. 
D) Japan.

Question 17

What type of faulting would be least likely to occur along the mid-Atlantic ridge?

Accepted Answer

A) normal faulting 
B) reverse faulting 
C) strike-slip faulting 
D) Normal,reverse,and strike-slip faulting are all likely to occur. 
A) normal faulting 
B) reverse faulting 
C) strike-slip faulting 
D) Normal,reverse,and strike-slip faulting are all likely to occur.

Question 18

The amount of ground displacement in an earthquake is called the

Accepted Answer

A) dip. 
B) epicenter. 
C) focus. 
D) (fault)slip. 
A) dip. 
B) epicenter. 
C) focus. 
D) (fault)slip.

Question 19

With respect to earthquakes,a building code refers to

Accepted Answer

A) the design of seismographs. 
B) building material. 
C) building design. 
D) building strength. 
A) the design of seismographs. 
B) building material. 
C) building design. 
D) building strength.

Question 20

Which of the following statements best describes the current state of earthquake prediction?

Accepted Answer

A) Scientists can accurately predict the time and location of almost all earthquakes. 
B) Scientists can accurately predict the time and location of approximately 50 percent of all earthquakes. 
C) Scientists can accurately predict when an earthquake will occur,but not where. 
D) Scientists cannot accurately predict most earthquakes. 
A) Scientists can accurately predict the time and location of almost all earthquakes. 
B) Scientists can accurately predict the time and location of approximately 50 percent of all earthquakes. 
C) Scientists can accurately predict when an earthquake will occur,but not where. 
D) Scientists cannot accurately predict most earthquakes.

Exam 13: Earthquakes

The largest earthquakes occur at

The modified Mercalli intensity scale measures

How long was the ground rupture created during the San Francisco earthquake of 1906?

A fault line long-term slip rate of 5 cm/year and slips 2.5 m when it moves.What is the recurrence interval of the fault?

Which of the following events released the most energy?

Whether a building will withstand ground shaking during an earthquake depends on

Which of the following earthquakes was the largest recorded earthquake?

What is the maximum amount of slip on a fault during an earthquake?

Fault mechanisms at subduction zones are called

Which of the following locations would be most likely to generate an earthquake magnitude 9 or higher?

Which of the following measurements collected from seismograph stations gives scientists information regarding the type of faulting that occurred during an earthquake?

Analysis of fault mechanisms indicates ___________ at divergent boundaries and _______ at transform boundaries.

As a rule of thumb aftershocks are typically ____ order(s)of magnitude ____ than the mainshock.

The energy released during a magnitude 8 earthquake is approximately ______ times larger than the energy released during a magnitude 6 earthquake.

Modern seismographs can measure displacements the width of a(n)

The costliest earthquake in recorded history occurred in

What type of faulting would be least likely to occur along the mid-Atlantic ridge?

The amount of ground displacement in an earthquake is called the

With respect to earthquakes,a building code refers to

Which of the following statements best describes the current state of earthquake prediction?

The Earth System

Plate Tectonics: The Unifying Theory

Earth Materials: Minerals and Rocks

Igneous Rocks: Solids From Melts

Sedimentation: Rocks Formed by Surface Processes

Metamorphism: Alteration of Rocks by Temperature and Pressure

Deformation: Modification of Rocks by Folding and Fracturing

Clocks in Rocks: Timing the Geologic Period

Early History of the Terrestrial Planets

History of the Continents

Geobiology: Life Interacts With Earth

Volcanoes

Exploring Earths Interior

The Climate System

Weathering,erosion,and Mass Wasting: Interactions Between the Climate and Plate Tectonic Systems

The Hydrologic Cycle and Groundwater

Stream Transport: From Mountains to Oceans

Winds and Deserts

Coastlines and Ocean Basins

Glaciers: the Work of Ice

Landscapes: Tectonic and Climate Interaction

The Human Impact of Earths Environment

Filters

Analysis of fault mechanisms indicates _____ at divergent boundaries and _ at transform boundaries.

As a rule of thumb aftershocks are typically order(s)of magnitude than the mainshock.