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# Measuring Earthquake Magnitude

## Scientists use seismometers to measure earthquake magnitude.

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Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
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## Measuring Earthquake Magnitude

by CK-12 //basic

Covers the instruments scientists use to measure earthquake magnitude.

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## Measuring Earthquake Magnitude Quiz - MS ES

by CK-12 //basic

Reviews the instruments scientists use to measure earthquake magnitude.

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## Measuring Earthquake Magnitude FourSquare

by CK-12 //basic

Summarize the main idea of a reading, create visual aids, and come up with new questions using a Four Square Concept Matrix.

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• Real World Application

## Tsunami or No Tsunami

by CK-12 //basic

Large subduction zone earthquakes are likely to cause dangerous tsunami.

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• Real World Application

## The Magnitude of Magnitude

by CK-12 //basic

Earthquake magnitude is measured on a logarithmic scale so each whole number releases 33 times more energy than the number below it.

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## Seismograph Demo

by CK-12 //basic

Shows how a seismograph works.

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