QQuakeFacts
USGS usp000jjqf

28 Apr 2012, 11:08

76 km W of Neiafu, Tonga

A magnitude 6.6 mww earthquake at 134.7 km depth.

Depth134.7 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated3 May 2022Latest timestamp stored in this record

Published location

Where is 76 km W of Neiafu, 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.

-18.685000, -174.705000

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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
usp000jjqf
Coordinates
-18.685, -174.705
Network
us
Significance
675