5.3 People and Earthquakes

A scientist who studies earthquakes and seismic waves is called a ________________.

• entomologist

• geologist

• seismologist

• anthropologist

True or False: Seismologists use records from seismographs solely to learn where the epicenter of the earthquake was located.

• True

• False

The measure of the energy that is released from an earthquake is called the _______________.

• magnitude

• liquefaction

• seismic wave

• Mercalli intensity

The ____________ scale is used to describe the strength of an earthquake based on the height of the lines on the seismogram.

• Mercalli

• Richter

• Seismic

• Intensity

For every 1.0 increase in magnitude on the Richter scale, the amount of energy released is ___ times greater

• 50

• 10

• 25

• 32

Look at Table 1 on page 140. The highest magnitude earthquake was in 1960 in Chile, but only had 490-2,290 deaths. Why do you think some of the less magnitude earthquakes resulted in a lot more deaths?

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NGSS.MS-ESS3-2

True or False: Each year, scientists record thousands of earthquakes every day, but the majority are too low in magnitude to feel.

• True

• False

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NGSS.MS-ESS3-2

NGSS.MS-ESS2-2

The _____________ scale is based on the intensity of an earthquake using the amount of structural and geologic damage in a specific location.

• Richter

• Mercalli

• Seismic

• Warner

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NGSS.MS-ESS3-2

What is liquefaction?

• when wet soil acts more like a liquid during an earthquake

• when a property is completely destroyed from an earthquake

• when a tsunami hits a shore and damages buildings

• when a concrete foundation is cracked

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NGSS.MS-ESS3-2

What are tsunamis most often caused by?

• underwater earthquakes

• volcanoes

• hurricanes

• flooding

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NGSS.MS-ESS3-2