QQuakeFacts
USGS usp00008hm

23 Oct 1974, 07:14

282 km SW of Panguna, Papua New Guinea

A magnitude 7.2 ms earthquake at 48 km depth.

Depth48 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 282 km SW of Panguna, Papua New Guinea?

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

-8.420000, 154.034000

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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
usp00008hm
Coordinates
-8.42, 154.034
Network
us
Significance
798