QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00050a0
USGS usp00050a0
11 Dec 1991, 20:39
southeast of the Loyalty Islands
A magnitude 6.5 mw earthquake at 36.6 km depth.
Published location
Where is southeast of the Loyalty Islands?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-23.368000, 171.044000
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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
usp00050a0
Coordinates
-23.368, 171.044
Network
us
Significance
650