Chapter 8 quiz review

In which of the following areas would the damage from a magnitude 6.8 earthquake likely be the greatest?

• lightly populated rural area

• area with modern steel-framed structures

• area with wood-framed structures

• area with older brick structures

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NGSS.MS-ESS3-2

How much of an increase in wave amplitude is seen from an earthquake measuring 5.4 on the Richter scale compared to one measuring 4.4?

• two times

• 20 times

• ten times

• 100 times

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NGSS.MS-PS4-1

The amount of shaking produced by an earthquake at a given location is called the

• intensity.

• magnitude.

• epicenter

• Richter magnitude.

The scale most widely used by scientists for measuring earthquakes is the

• Richter scale.

• moment magnitude scale.

• epicenter magnitude scale.

• seismic scale.

According to Figure 8-1, when will the first P wave be received, if an earthquake epicenter is approximately 1800 kilometers from the seismic station?

• 3.5 minutes after the earthquake

• 6.6 minutes after the earthquake

• 5.5 minutes after the earthquake

• 10.5 minutes after the earthquake

What is the minimum number of seismic stations that is needed to determine the location of an earthquake’s epicenter?

• 7

• 3

• 2

• 9

Overall, which seismic waves are the most destructive?

• P waves

• S waves

• light waves

• surface waves

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NGSS.MS-PS4-2

Which seismic waves compress and expand rocks in the direction the waves travel?

• S waves

• surface waves

• P waves

• transverse waves

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Small foreshocks that precede a major earthquake can occur

• from the day of the major earthquake to days after the earthquake.

• only on the day of the major earthquake.

• only on the day before the major earthquake.

• either days or years or seconds before the major earthquake.

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NGSS.MS-ESS3-2

The adjustments of materials that follow a major earthquake often generate smaller earthquakes called

• foreshocks.

• surface waves.

• body waves.

• aftershocks.

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