Question: What does Modified Mercalli scale measure?

The modified Mercalli intensity scale (MM or MMI), developed from Giuseppe Mercallis Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake.

What does the modified scale measure?

Modified Mercalli Intensity Scale This is a semi-quantitative scale used to evaluate ground shaking and damage. This scale is composed of 12 increasing levels of intensity based on observed effects. These range from imperceptible shaking to catastrophic destruction, designated by Roman numerals.

What does the Mercalli scale observe?

The Mercalli Intensity Scale measures the intensity of an earthquake by observing its effect on people, the environment and the earth’s surface.

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