Earthquakes Answers
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The diagram shows circles drawn by geologists trying to determine the location of an earthquake’s epicenter.
A
location of an epicenterB
location of a focusC
location of a seismographD
location of a wave2
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Which statement describes a seismograph?
A
It has a flat graphing surface.B
It is used to locate an earthquake’s focus.C
It uses a needle on graph paper to measure seismic wave activity.D
It measures data used to find the difference between the arrival times of surface waves.3
How are S waves and P waves similar?
A
They shake the ground.B
They travel through liquids.C
They arrive at the same time.D
They vibrate from side to side.4
Which statement describes the Mercalli scale?
A
This scale measures seismic waves based on their size.B
This scale rates an earthquake according to how much damage it causes.C
This scale produces a single rating for earthquakes that reach the surface.D
This scale measures the magnitude of an earthquake based on the size of seismic waves.5
What happens when stress builds at faults?
A
Energy is absorbed.B
Rock can bend and break.C
Plates form on the lithosphere.D
Earthquakes develop at Earth’s surface.6
Which phrase describes a feature of an earthquake’s epicenter?
A
starting point of an earthquakeB
place around the center of an earthquakeC
region directly above the focusD
point about 100 kilometers deep in the lithosphere7
Which strategy do geologists use to locate the center of an earthquake?
A
They only analyze local data.B
They collect data from seismographs.C
They measure arrival times of surface waves.D
They draw squares on maps for measurements.8
Which statement describes surface waves?
A
They arrive before S waves.B
They travel faster than P waves.C
They are produced by P and S waves.D
They travel deep below Earth’s surface.9
Which statement describes the moment magnitude scale?
A
It measures only small earthquakes.B
It uses data collected by a seismograph.C
It shows only the strength of seismic waves that were produced.D
It determines the amount of damage caused by an earthquake.10
Which statement describes the Richter scale?
A
It cannot account for fault movement during an earthquake.B
It measures large earthquakes far from the seismograph.C
It estimates the total energy released from an earthquake.D
It measures magnitude based on the size of seismic waves.Did you find these answers helpful?
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