QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00004p9
USGS usp00004p9
28 Dec 1973, 13:41
81 km NW of Port-Olry, Vanuatu
A magnitude 7.5 ms earthquake at 26 km depth.
Published location
Where is 81 km NW of Port-Olry, 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.
-14.464000, 166.601000
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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
usp00004p9
Coordinates
-14.464, 166.601
Network
us
Significance
865