QQuakeFacts
USGS iscgem781082

9 Aug 1971, 21:01

141 km S of Kokopo, Papua New Guinea

A magnitude 6.3 mw earthquake at 29.5 km depth.

Depth29.5 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 141 km S of Kokopo, 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.

-5.622000, 152.173000

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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
iscgem781082
Coordinates
-5.622, 152.173
Network
iscgem
Significance
605