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2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt 2-1 Forces in the Earth’s Crust 2.3 Monitorint earthquakes 2.4 Earthquake safety 2.4 Earthquake Safety 2.2 Earthquakes & Seismic Waves
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Stress that pushes a mass of rock in two opposite directions is called
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shearing.
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Because stress is a force, it ______ energy to rock.
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adds
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The squeezing together of rocks by stress is called ______.
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compression
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What stress is shown in C?
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Tension
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What stress is shown in D?
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Shearing
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Stress that pushes a mass of rock in two opposite directions is called
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Shearing.
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Because stress is a force it what does it do the energy of rock?
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Adds energy.
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In a normal fault, the part of the fault that lies below the other part is called the ?
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footwall.
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What type of stress force produces Reverse faults?
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compression.
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The land between two normal faults that moves up is called?
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Fault-block mountain
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A device that uses wire stretched across a fault to measure horizontal movement of the ground is called ?
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Creep meter.
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A device that monitors both vertical and horizontal ground movement?
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GPS satellite system
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What happens when friction between the opposite side of a fault is high?
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Which type of fault-monitoring device is most like a carpenter’s level??
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Tiltmeter.
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Geologists cannot yet predict earthquakes because?
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they can’t be sure when and where stress will be release along a fault.
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Laser-ranging devices can detect even tiny movements of the crust along a ___?
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fault
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With the range of data available, geologists ___ predict exactly where and when earthquakes will occur.
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cannot
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What can cause damage days or months after a large earthquake?
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An aftershock.
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What is a building designed to reduce the amount of energy that reaches the building during an earthquake is called a ?
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Base-isolated building.
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If the Coast Guard warns of a giant wave of water approaching the shore as a result of a major earthquake they are warning of?
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tsunami.
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The best way to protect yourself in an earthquake is to ?
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Drop, cover, and hold..
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The risk of earthquakes is high along the Pacific coast of the United States because ?
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That’s where the Pacific and North American plates.
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Most earthquake-related deaths and injuries results from?
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Damage to buildings or other structures
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The process in which the violent shaking of an earthquake turns soft soil into liquid mud is known as ?
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liquefaction.
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Earthquake damage can be reduced by making buildings more ___________ so that they twist and bend without
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flexible
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An earthquake that occurs shortly after a larger earthquake is a(n) ____________________..
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aftershock
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Most active fault in the U.S. currently is?
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San Andreas
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