Mercalli scale

[ mer-kah-lee, mer-; Italian mer-kahl-lee ]
/ mərˈkɑ li, mɛr-; Italian mɛrˈkɑl li /

noun Geology.

a measure of earthquake intensity with 12 divisions ranging from I (felt by very few) to XII (total destruction).

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Origin of Mercalli scale

1920–25; named after Giuseppe Mercalli (1850–1914), Italian seismologist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for Mercalli scale

Mercalli scale
/ (mɜːˈkælɪ) /

noun

a 12-point scale for expressing the intensity of an earthquake, ranging from 1 (not felt, except by few under favourable circumstances) to 12 (total destruction)Compare Richter scale See also intensity (def. 4)

Word Origin for Mercalli scale

C20: named after Giuseppe Mercalli (1850–1914), Italian volcanologist and seismologist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for Mercalli scale

Mercalli scale
[ mər-kälē, mĕr- ]

A scale of earthquake intensity based on observed effects and ranging from I (detectable only with instruments) to XII (causing almost total destruction). It is named after the Italian seismologist Giuseppe Mercalli.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.