Question 1

The study of ancient earthquakes is known as ____________________.

Accepted Answer

paleoseismology

Question 2

Tsunami are significant sources of danger created by earthquakes.

Accepted Answer

A) True 
 B)False  True

Question 3

Why do structures located on thick,soft sediment,especially water-saturated or artificial fill,suffer much greater damage than structures built on bedrock?

Accepted Answer

Surface waves cause this material to shake,lose its cohesiveness,and collapse.Sometimes they mix with water and move like a fluid,in a process called liquefaction.

Question 4

Explain the differences between the magnitude and the intensity of an earthquake,in terms of how many intensities and magnitudes a single earthquake can have.

Accepted Answer

An earthquake can have only on

Question 5

A seismic risk map can be used to

Accepted Answer

A)  predict when an earthquake will take place in an area. 
B)  choose locations for hospitals and other important buildings. 
C)  determine the most likely location of the epicenter of the next earthquake. 
D)  show seismic gaps. 
A)  predict when an earthquake will take place in an area. 
B)  choose locations for hospitals and other important buildings. 
C)  determine the most likely location of the epicenter of the next earthquake. 
D)  show seismic gaps.

Question 6

Besides the distance to the epicenter of an earthquake,what are two other things that a seismograph can tell us?

Accepted Answer

A seismograph records that the

Question 7

Why do earthquakes of similar size often have such large differences in their destructiveness? Why are they so different in the number of people they kill?

Accepted Answer

Earthquakes do more damage in places whe

Question 8

The major discontinuity that occurs at a depth of 2,900 km below earth's surface is the ____.

Accepted Answer

A)  low velocity zone 
B)  Moho 
C)  inner core outer core transition 
D)  core-mantle boundary 
E)  none of these 
A)  low velocity zone 
B)  Moho 
C)  inner core outer core transition 
D)  core-mantle boundary 
E)  none of these

Question 9

Explain why the portions of the San Andreas fault that are "locked" are or are not safer than the parts where the two plates slide more or less continually.What is the name of the theory that deals with this issue?

Accepted Answer

The locked portions of a fault are proba

Question 10

According to elastic rebound theory,rocks deform and bend.When their internal strength is exceeded they rupture.This energy release is called an earthquake.

Accepted Answer

A) True 
 B)False

Question 11

The ____________________ or focus of an earthquake is the location within the crust where the energy of an earthquake is released.The ____________________ is the point on Earth's surface directly above the focus.

Accepted Answer

hypocenter

Question 12

Seattle's most important buildings--schools,hospitals,etc.--are built to State of California earthquake standards.

Accepted Answer

A) True 
 B)False

Question 13

For what purpose is seismic tomography used?

Accepted Answer

to develop three-dim

Question 14

The odd behavior of many kinds of animals is a scientifically accepted method used to predict earthquakes.

Accepted Answer

A) True 
 B)False

Question 15

What causes tsunami,and why are they so destructive?

Accepted Answer

Many tsunami are caused by the displacem

Question 16

Which of the following is not a factor affecting earthquake intensity?

Accepted Answer

A)  distance from the epicenter 
B)  depth of the hypocenter 
C)  population density 
D)  duration of shaking 
E)  the time elapsed since the last earthquake 
A)  distance from the epicenter 
B)  depth of the hypocenter 
C)  population density 
D)  duration of shaking 
E)  the time elapsed since the last earthquake

Question 17

Almost all intermediate- to deep-focus earthquakes occur along ____________________ plate boundaries.

Accepted Answer

The answer of Almost all intermediate- to deep-focus earthquakes occur...

Question 18

One of the strongest earthquakes ever recorded in North America was the intraplate quake known as the

Accepted Answer

A)  1811 New Madrid, Missouri, earthquake 
B)  1886 Charleston, Carolina, earthquake 
C)  1906 San Francisco earthquake 
D)  1964 Anchorage, Alaska, earthquake 
E)  1984 Mount St. Helens, Washington, earthquake 
A)  1811 New Madrid, Missouri, earthquake 
B)  1886 Charleston, Carolina, earthquake 
C)  1906 San Francisco earthquake 
D)  1964 Anchorage, Alaska, earthquake 
E)  1984 Mount St. Helens, Washington, earthquake

Question 19

Why are earthquakes more likely to occur in Tokyo,Anchorage,and Los Angeles than they are in New York,London,or Paris?

Accepted Answer

The first three cities lie alo

Question 20

The two major types of seismic waves are ____________________ waves and ____________________ waves.

Accepted Answer

The answer of The two major types of seismic waves...

Exam 9: Earthquakes and Earth's Interior

The study of ancient earthquakes is known as ____________________.

Tsunami are significant sources of danger created by earthquakes.

Why do structures located on thick,soft sediment,especially water-saturated or artificial fill,suffer much greater damage than structures built on bedrock?

Explain the differences between the magnitude and the intensity of an earthquake,in terms of how many intensities and magnitudes a single earthquake can have.

A seismic risk map can be used to

Besides the distance to the epicenter of an earthquake,what are two other things that a seismograph can tell us?

Why do earthquakes of similar size often have such large differences in their destructiveness? Why are they so different in the number of people they kill?

The major discontinuity that occurs at a depth of 2,900 km below earth's surface is the ____.

Explain why the portions of the San Andreas fault that are "locked" are or are not safer than the parts where the two plates slide more or less continually.What is the name of the theory that deals with this issue?

According to elastic rebound theory,rocks deform and bend.When their internal strength is exceeded they rupture.This energy release is called an earthquake.

The ____________________ or focus of an earthquake is the location within the crust where the energy of an earthquake is released.The ____________________ is the point on Earth's surface directly above the focus.

Seattle's most important buildings--schools,hospitals,etc.--are built to State of California earthquake standards.

For what purpose is seismic tomography used?

The odd behavior of many kinds of animals is a scientifically accepted method used to predict earthquakes.

What causes tsunami,and why are they so destructive?

Which of the following is not a factor affecting earthquake intensity?

Almost all intermediate- to deep-focus earthquakes occur along ____________________ plate boundaries.

One of the strongest earthquakes ever recorded in North America was the intraplate quake known as the

Why are earthquakes more likely to occur in Tokyo,Anchorage,and Los Angeles than they are in New York,London,or Paris?

The two major types of seismic waves are ____________________ waves and ____________________ waves.

Understanding Earth: A Dynamic and Evolving Planet

Plate Tectonics: A Unifying Theory

Minerals The Building Blocks of Rocks

Igneous Rocks and Plutons

Volcanoes and Volcanism

Weathering, Erosion, and Soil

Sediment and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Deformation,Mountain Building,and Earth's Crust

Mass Wasting

Running Water Streams and Rivers

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Oceans, Shorelines, and Shoreline Processes

Geologic Time: Concepts and Principles

Organic Evolution The Theory and Its Supporting Evidence

Precambrian Earth and Life History

Paleozoic Earth History

Paleozoic Life History

Mesozoic Earth and Life History

Cenozoic Earth and Life History

Geology in Perspective

Filters

The or focus of an earthquake is the location within the crust where the energy of an earthquake is released.The is the point on Earth's surface directly above the focus.

The two major types of seismic waves are waves and waves.