QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00023aj
USGS usp00023aj
7 Apr 1984, 00:08
84 km NNW of Isangel, Vanuatu
A magnitude 6.8 mw earthquake at 182.4 km depth.
Published location
Where is 84 km NNW 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.
-18.903000, 168.850000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
usp00023aj
Coordinates
-18.903, 168.85
Network
us
Significance
711