starquake

[ stahr-kweyk ]
/ ˈstɑrˌkweɪk /

noun Astronomy.

a rapid change in the mass distribution or shape of a pulsar, resulting in a fluctuation of the pulsar's pulse rate or radiation intensity.

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Origin of starquake

First recorded in 1965–70; star + (earth)quake
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020