Measuring Earthquakes

The amount of energy released by an earthquake is measured by its

This measurement of an earthquake will change as distance from the epicenter of an earthquake changes

What is the point on the surface of the Earth where an earthquake is felt with the most intensity?

What is the outermost layer of the Earth's lithosphere?

• Inner core

• Stiffer mantle

• Crust

• Outer core

What is the primary cause of earthquakes?

• Volcanic eruptions

• Tectonic plates rubbing against each other

• Changes in atmospheric pressure

• Ocean currents

What is the main purpose of a seismograph?

• To predict future earthquakes

• To measure the depth of the ocean

• To determine the magnitude of an earthquake

• To analyze the composition of the Earth's core

What does the Moment Magnitude scale measure?

• The distance from the epicenter to the seismograph

• The total energy released by an earthquake

• The effects observed from an earthquake

• The type of soil affected by an earthquake

What instrument is typically used to measure seismic waves?

• sonograph

• seismograph

• simograph

• radar

The scale used to measure an earthquake's intensity or destruction, ranging from 1-12, is called the

a.    

b.    

• Richter scale

• Earthquake scale

• Magnitude scale

• Mercalli scale

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