QQuakeFacts
USGS usp000crjm

3 Apr 2004, 10:00

114 km W of Hihifo, Tonga

A magnitude 5.3 mwc earthquake at 288.3 km depth.

Depth288.3 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 114 km W of Hihifo, 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.

-16.156000, -174.847000

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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
usp000crjm
Coordinates
-16.156, -174.847
Network
us
Significance
432