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Chapter 4 Earthquakes Test Review
Terms in this set (25)
The land between two normal faults moves upward to form a
A large area of flat land elevated high above sea level is called a
An earthquake that occurs shortly after a larger earthquake is a(an) ____________________.
The point beneath Earth's surface where rock breaks under stress and triggers an earthquake is called the
The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion are called
Earthquake waves that vibrate from side to side and up and down only through solids are known as _________________ waves
In what direction do seismic waves carry the energy of an earthquake?
away from the focus
Which scale would most likely be used to tell how much earthquake damage was done to homes and other buildings?
the Mercalli scale
The rating system that estimates the total energy released by an earthquake is called the
moment magnitude scale.
Which of the following is a limitation of the Richter scale?
It does not work well for large or distant earthquakes
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
The seismic waves that travel along Earth's surface and produce the most severe ground movements are called ____________________.
What does a seismograph record?
the ground movements caused by seismic waves
The scale that measures the strengths of earthquake based on seismic waves and movement along a fault is called the _________________ scale.
To tell how far an earthquake's epicenter is from a seismograph, scientists measure the difference between the
arrival times of the P waves and S waves.
If a long period of time passes between the arrival of an earthquake's P waves and S waves, seismologists would infer that the earthquake's
epicenter must be far away
What happens to a tsunami as it approaches shallow water?
Its wave height grows.
The point on the surface directly above the focus is called the ____________________.
The tool used by geologists to determine the location of an earthquake's epicenter is called a(an)
The zigzag pattern of lines that records earthquake vibrations is called a(an)
The type of stress that pulls on of the crust, stretching rock so that it becomes thinner in the middle is called
A force that acts on rocks to change its shape or volume is called
The stress force called ____________________ squeezes rock until it folds or breaks.
The stress force that causes a mass of rock to pull or twist in opposite directions is called
______________________ occurs when an earthquake's violent shaking suddenly turns loose soft soil into liquid mud.
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