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Exam 8: Earthquakes and Earths Interior

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Question 1

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

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Question 2

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

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P-waves; S...

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Question 3

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

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

Aftershocks do not cause much damage.

What is the focus and epicenter in reference to earthquakes?

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

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?

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

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

How does elastic rebound theory explain when earthquakes occur?

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

What causes intraplate earthquakes?

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

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

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

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

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

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