seismometer

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• seismometre (nonstandard)

From seismo- +‎ -meter.

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seismometer (plural seismometers)

1. (geology) A device used by seismologists to detect and measure seismic waves and therefore locate earthquakes etc; a seismograph.
   • 2003, Bill Bryson, A Short History of Nearly Everything, BCA, page 205:

     Despite the Hebgen Lake quake and the other known risks, Yellowstone didn't get permanent seismometers until the 1970s.

   • 2025 August 20, Julia Jacobo, “Mile-deep underwater volcano off West Coast could erupt soon, scientists say”, in ABC News‎^[1]:

     Researchers monitor the volcano through instruments and cables that extend from the coast. Among them are seismometers, which provide real-time data on the earthquakes occurring near the volcano, Chadwick said.

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