QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgemsup913657
USGS iscgemsup913657
20 Sept 1917, 02:50
257 km E of Isangel, Vanuatu
A magnitude 6.2 mw earthquake at 15 km depth.
Published location
Where is 257 km E of Isangel, Vanuatu?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-19.772000, 171.728000
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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
iscgemsup913657
Coordinates
-19.772, 171.728
Network
iscgemsup
Significance
589