QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0002vg9
USGS usp0002vg9
28 Jun 1986, 06:03
151 km NW of Nuku‘alofa, Tonga
A magnitude 6.5 mw earthquake at 211.2 km depth.
Published location
Where is 151 km NW of Nuku‘alofa, Tonga?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-20.037000, -176.056000
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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
usp0002vg9
Coordinates
-20.037, -176.056
Network
us
Significance
650