QQuakeFacts
USGS usp00013ck

12 Oct 1979, 11:25

180 km W of Riverton, New Zealand

A magnitude 7.4 ms earthquake at 33 km depth.

Depth33 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 180 km W of Riverton, New Zealand?

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

-46.675000, 165.707000

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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
usp00013ck
Coordinates
-46.675, 165.707
Network
us
Significance
842