QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00038du
USGS usp00038du
15 Sept 1987, 09:50
106 km ESE of Kokopo, Papua New Guinea
A magnitude 6 mw earthquake at 63.1 km depth.
Published location
Where is 106 km ESE 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.
-4.709000, 153.157000
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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
usp00038du
Coordinates
-4.709, 153.157
Network
us
Significance
554