Earth Science - Unit 6 - Topic: Earthquakes

What causes most earthquakes?

• Volcanic eruptions

• Movements of tectonic plates

• Ocean currents

• Changes in the weather

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NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

The point beneath Earth's surface where rock breaks under stress and causes an earthquake is called the ________.

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NGSS.MS-ESS3-2

What kind of seismic wave arrives first at a seismograph station?

• Surface wave

• P wave

• S wave

• Rayleigh wave

The scale used to measure the amount of energy released by an earthquake is the ________ magnitude scale.

Why can't S waves travel through Earth’s outer core?

• It's made of solid rock

• It's too hot

• It's liquid

• It reflects all seismic waves

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NGSS.MS-PS4-2

The epicenter is located directly below the focus of an earthquake.

• True

• False

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NGSS.MS-ESS3-2

Which factor increases the amount of shaking and damage caused by an earthquake?

• Depth of the focus is very deep

• Loose soil under buildings

• Epicenter located in the ocean

• Fewer aftershocks

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NGSS.MS-ESS3-2

A ________ is an instrument that records seismic waves.

What do geologists use to determine the location of an earthquake's epicenter?

• Only P waves

• Data from one seismograph

• Arrival times of P and S waves at several stations

• Satellite images

Earthquakes always occur along plate boundaries.

• True

• False

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2