# microtremor

> English word · Noun

## Definitions
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.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/microtremor