QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0003gwh
USGS usp0003gwh
11 Jun 1988, 13:17
111 km NNE of Hihifo, Tonga
A magnitude 6.3 mw earthquake at 35.7 km depth.
Published location
Where is 111 km NNE of Hihifo, 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.
-14.994000, -173.469000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
usp0003gwh
Coordinates
-14.994, -173.469
Network
us
Significance
611