QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem913072
USGS iscgem913072

13 Feb 1918, 06:07

7 km S of Huanggang, China

A magnitude 7.4 mw earthquake at 15 km depth.

Depth15 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated25 April 2022Latest timestamp stored in this record

Published location

Where is 7 km S of Huanggang, China?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

23.609000, 117.004000

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Map data © OpenStreetMap contributors

What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

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Nearby events with a similar magnitude

M 6.02

71 km ESE of Ji’an, China

M 6

10 km NNW of Heyuan, China

Catalog fields and provenance
Event ID
iscgem913072
Coordinates
23.609, 117.004
Network
iscgem
Significance
836