# megathrust

> English word · Noun

## Definitions
1. A sudden large-scale slip along a fault between a subducting and an overriding plate, resulting in a major earthquake.

## Etymology
From mega- + thrust.

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