What does "microtremor" mean?

Any of the continuous background movements of the Earth's surface and interior, having a period of 1 to 9 seconds, not associated with any seismic activity

Microtremor

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
Any of the continuous background movements of the Earth's surface and interior, having a period of 1 to 9 seconds, not associated with any seismic activity

Etymology

From micro- + tremor.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.