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microearthquake

[mahy-kroh-urth-kweyk] /ˌmaɪ kroʊˈɜrθˌkweɪk/
noun
1.
an earthquake of very low intensity (magnitude of 2 or less on the Richter scale).
Also called microtremor.
Origin
1965-1970
1965-70; micro- + earthquake
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for microearthquake
  • Borehole geophones at reservoir depths provide the high-quality data needed to determine microearthquake location patterns.
  • Fault or joint planes are identified in what superficially appears to be an amorphous microearthquake location set.
  • The hypocenter, or focus of the microearthquake, is the location of the subterranean point of initial rupture of the rocks.

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