Question Video: Measuring Earthquake’s Magnitude | Nagwa Question Video: Measuring Earthquake’s Magnitude | Nagwa

Question Video: Measuring Earthquake’s Magnitude Geology • Third Year of Secondary School

What is an earthquake’s magnitude a measure of?

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Video Transcript

What is an earthquake’s magnitude a measure of? (A) The duration of the earthquake. (B) The surface damage caused by the earthquake. (C) The number of seismic waves produced by the earthquake. (D) The total amount of strain energy released from the earthquake’s source.

The magnitude or size of an earthquake is the measure of the total amount of energy released by an earthquake. The magnitude of an earthquake is quantitatively measured using the Richter scale developed by Charles Richter in 1935. The Richter scale ranges from zero to nine. However, earthquakes have been recorded with a magnitude greater than nine. The Richter scale should not be confused with the Mercalli scale, which measures the surface damage resulting from an earthquake or an earthquake’s intensity.

In conclusion, an earthquake’s magnitude is a measure of the total amount of strain energy released from the earthquake’s source.

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