QQuakeFacts
USGS us1000ce8z

2 Feb 2018, 10:22

28 km E of Neiafu, Tonga

A magnitude 5 mb earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated7 August 2022Latest timestamp stored in this record

Published location

Where is 28 km E 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.

-18.603700, -173.716900

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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
us1000ce8z
Coordinates
-18.6037, -173.7169
Network
us
Significance
385