# hypocentre

> English word · Noun

## Definitions
1. The focus of an earthquake, directly under the epicentre.
2. The point on the surface below an atmospheric explosion; ground zero

## Etymology
From hypo- + centre; from Ancient Greek ὑπο- (hupo-, “under-, sub-”) and Ancient Greek κέντρον (kéntron, “centre”).

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