Question 1

What is earthquake intensity, how is it measured, and what factors are involved in the intensity of a quake?

Accepted Answer

Intensity is a subjective measure of the damage done by an earthquake and peoples' reactions to it. It is measured by the Modified Mercalli Intensity Scale with values from I to XII based on damage observed. Although the size of the earthquake affects intensity, so does distance from the epicenter, focal depth of the quake, population density, geology of the area, building construction, and shaking duration.

Question 2

Seismic waves that cause a rolling or swaying motion of the surface of the ground are called ____________________ waves.

Accepted Answer

surface

Question 3

Compare the continental crust with oceanic crust in terms of composition and thickness.

Accepted Answer

Continental crust is complex, consisting of all rock types, but is usually described as granitic. It averages 35 km thick and is less dense than the oceanic crust. Oceanic crust is comparatively simple, consisting of gabbro in its lower part and overlain by basalt and is more dense compared to its continental counterpart. Its thickness ranges from 5 to 10 km.

Question 4

How does elastic rebound theory explain when earthquakes occur?

Accepted Answer

Where the rocks on the opposite side of

Question 5

What are the focal depth ranges for shallow-focus, intermediate-focus, and deep-focus earthquakes?

Accepted Answer

Shallow-focus: less than 70 ki

Question 6

Which type(s) of seismic waves do seismographs record?

Accepted Answer

P-waves; S

Question 7

What happens along an earthquake fault after rupturing begins? How is the length of time of ground shaking related to the length of the fault?

Accepted Answer

Once rupturing begins, it moves along th

Question 8

Monitoring changes in electrical resistance is a scientifically accepted method used to predict earthquakes.

Accepted Answer

A) True 
 B)False

Question 9

Explain the differences between the magnitude and the intensity of an earthquake, in terms of cause and effect.

Accepted Answer

Magnitude is a measure of the

Question 10

The name of the point on Earth's surface vertically above the hypocenter is the ____________________.

Accepted Answer

The answer of The name of the point on Earth's...

Question 11

Describe the three categories of earthquakes based on focal depth and what causes them.

Accepted Answer

Shallow-focus earthquakes have focal dep

Question 12

The fastest seismic waves, which can travel through solids, liquids, and gases, are ____________________ waves.

Accepted Answer

The answer of The fastest seismic waves, which can travel...

Question 13

Aftershocks do not cause much damage.

Accepted Answer

A) True 
 B)False

Question 14

What is the focus and epicenter in reference to earthquakes?

Accepted Answer

Focus is the point of origin o

Question 15

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 affect?

Accepted Answer

Earthquakes do more damage in places whe

Question 16

What causes intraplate earthquakes?

Accepted Answer

Although the causes are not we

Question 17

For every integer increase of magnitude on the Richter Scale, ____________________ times more energy is released by the earthquake.

Accepted Answer

The answer of For every integer increase of magnitude on...

Question 18

The structural layer that comprises the greatest volume of Earth is the ____________________.

Accepted Answer

The answer of The structural layer that comprises the greatest...

Question 19

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

Accepted Answer

The answer of All intermediate- to deep-focus earthquakes occur along...

Question 20

The Modified Mercalli Intensity Scale is a subjective scale to measure the destructive effects of an earthquake.

Accepted Answer

A) True 
 B)False

What is earthquake intensity, how is it measured, and what factors are involved in the intensity of a quake?

Seismic waves that cause a rolling or swaying motion of the surface of the ground are called ____________________ waves.

Compare the continental crust with oceanic crust in terms of composition and thickness.

How does elastic rebound theory explain when earthquakes occur?

What are the focal depth ranges for shallow-focus, intermediate-focus, and deep-focus earthquakes?

Which type(s) of seismic waves do seismographs record?

What happens along an earthquake fault after rupturing begins? How is the length of time of ground shaking related to the length of the fault?

Monitoring changes in electrical resistance is a scientifically accepted method used to predict earthquakes.

Explain the differences between the magnitude and the intensity of an earthquake, in terms of cause and effect.

The name of the point on Earth's surface vertically above the hypocenter is the ____________________.

Describe the three categories of earthquakes based on focal depth and what causes them.

The fastest seismic waves, which can travel through solids, liquids, and gases, are ____________________ waves.

Aftershocks do not cause much damage.

What is the focus and epicenter in reference to earthquakes?

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 affect?

What causes intraplate earthquakes?

For every integer increase of magnitude on the Richter Scale, ____________________ times more energy is released by the earthquake.

The structural layer that comprises the greatest volume of Earth is the ____________________.

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

The Modified Mercalli Intensity Scale is a subjective scale to measure the destructive effects of an earthquake.

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: the Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Shorelines and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Life History

Filters

Exam 8: Earthquakes and Earths Interior

What is earthquake intensity, how is it measured, and what factors are involved in the intensity of a quake?

Seismic waves that cause a rolling or swaying motion of the surface of the ground are called ____________________ waves.

Compare the continental crust with oceanic crust in terms of composition and thickness.

How does elastic rebound theory explain when earthquakes occur?

What are the focal depth ranges for shallow-focus, intermediate-focus, and deep-focus earthquakes?

Which type(s) of seismic waves do seismographs record?

What happens along an earthquake fault after rupturing begins? How is the length of time of ground shaking related to the length of the fault?

Monitoring changes in electrical resistance is a scientifically accepted method used to predict earthquakes.

Explain the differences between the magnitude and the intensity of an earthquake, in terms of cause and effect.

The name of the point on Earth's surface vertically above the hypocenter is the ____________________.

Describe the three categories of earthquakes based on focal depth and what causes them.

The fastest seismic waves, which can travel through solids, liquids, and gases, are ____________________ waves.

Aftershocks do not cause much damage.

What is the focus and epicenter in reference to earthquakes?

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 affect?

What causes intraplate earthquakes?

For every integer increase of magnitude on the Richter Scale, ____________________ times more energy is released by the earthquake.

The structural layer that comprises the greatest volume of Earth is the ____________________.

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

The Modified Mercalli Intensity Scale is a subjective scale to measure the destructive effects of an earthquake.

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: the Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Shorelines and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Life History

Filters