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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).
Origin of Mercalli scale
1920-25; named after Giuseppe Mercalli (1850-1914), Italian seismologist Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for mercalli-scale

Mercalli scale

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 (sense 4)
Word Origin
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
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mercalli-scale in Science
Mercalli scale
  (mər-kä'lē, měr-)   
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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