QQuakeFacts
USGS iscgemsup16958126

14 Dec 1910, 20:46

280 km WNW of Houma, Tonga

A magnitude 7.2 mB earthquake at 440 km depth.

Depth440 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated4 August 2025Latest timestamp stored in this record

Published location

Where is 280 km WNW of Houma, Tonga?

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

-20.342000, -177.848000

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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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Catalog fields and provenance
Event ID
iscgemsup16958126
Coordinates
-20.342, -177.848
Network
iscgemsup
Significance
798