Mercalli intensity

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English

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Noun

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Mercalli intensity (countable and uncountable, plural Mercalli intensities)

  1. A measure of the seismic intensity of an earthquake, according to the scale introduced by Italian volcanologist Giuseppe Mercalli.

Usage notes

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  • Historically, there have been several Mercalli intensity scales. The "modified Mercalli intensity" (which measures the effects of an earthquake at a given location, distinguished from the earthquake's inherent force or strength) is now the most commonly used.