QQuakeFacts
USGS us700059ph

23 Aug 2019, 03:03

125 km E of ‘Ohonua, Tonga

A magnitude 5.1 mb earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated8 November 2019Latest timestamp stored in this record

Published location

Where is 125 km E of ‘Ohonua, 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.

-21.479300, -173.749600

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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
us700059ph
Coordinates
-21.4793, -173.7496
Network
us
Significance
400