QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgemsup16958209
USGS iscgemsup16958209
1 Sept 1912, 04:10
204 km NNW of Arawa, Papua New Guinea
A magnitude 7 mB earthquake at 425 km depth.
Published location
Where is 204 km NNW of Arawa, 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.
-4.636000, 154.629000
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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
iscgemsup16958209
Coordinates
-4.636, 154.629
Network
iscgemsup
Significance
754