QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem780674
USGS iscgem780674
27 Sept 1971, 23:20
179 km SE of Lorengau, Papua New Guinea
A magnitude 6.3 mw earthquake at 10 km depth.
Published location
Where is 179 km SE of Lorengau, 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.
-3.250000, 148.340000
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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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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
iscgem780674
Coordinates
-3.25, 148.34
Network
iscgem
Significance
605