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microearthquake

American  
[mahy-kroh-urth-kweyk] / ˌmaɪ kroʊˈɜrθˌkweɪk /

noun

  1. an earthquake of very low intensity (magnitude of 2 or less on the Richter scale).

Etymology

Origin of microearthquake

First recorded in 1965–70; micro- + earthquake

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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