wb_chap_5__sect_3
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wb chap 5TRANSCRIPT
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Name ____________________________ Date ___________________ Class____________
Pearson Education, Inc. All rights reserved.
101
Monitoring Earthquakes
(pp. 190195)
This section explains how geologists monitor faults to try to predict earthquakes.
Use Target Reading Skills
Review the text in the section Trying to Predict Earthquakes on page 195. Complete the chart below by identifying two details that support the main idea.
The Seismograph
(p. 191)
1.
After an earthquake, in what order are the different types of seismic waves recorded by a seismograph?
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Main Idea
Detail
a. b.
Detail
Even with data from many sources, geologists cannot predict when and
where a quake will strike.
Earthquakes
Reading/Notetaking Guide
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Pearson Education, Inc. All rights reserved.
102
Name ____________________________ Date ___________________ Class____________
Monitoring Earthquakes
(continued)
Instruments That Monitor Faults
(pp. 192193)
2.
List four instruments that geologists use to monitor movements along faults.
a.
___________________________
b.
___________________________
c.
___________________________
d.
___________________________
Match the type of monitoring device with its description.
Monitoring Device Description____ 3.
creep meter
____
4.
laser-ranging device
____
5.
tiltmeter
____
6.
GPS satellite
7.
Label each circle in the Venn diagram with the name of the monitoring device it represents.
Measures horizontal movement
Measures movement
along a fault
Measures vertical
movement
a. b.
Earthquakes
Reading/Notetaking Guide
a.
Uses a network of Earth-orbiting satellites
b.
Detects changes in distance to a reflector
c.
Measures movement along a slip-strike fault
d.
Works like a carpenters level
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Name ____________________________ Date ___________________ Class____________
Pearson Education, Inc. All rights reserved.
103
8.
A device that bounces laser beams off a reflector to detect fault
movements is a(n) ____________________.
9.
A device that can measure tiny vertical or horizontal movements of markers set up on the opposite sides of a fault is a(n) ____________________.
Using Seismographic Data
(pp. 194195)
10.
How do seismic waves behave when they encounter a fault?
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11.
How do the data from the movements of seismic waves help geologistsdetermine the earthquake risk for an area?
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12.
The force that opposes the motion of one surface as it moves across
another surface is referred to as ____________________.
13.
Is the following sentence true or false? Geologists can predict accurately where and when an earthquake will strike.
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Earthquakes
Reading/Notetaking Guide