QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem824323
USGS iscgem824323
25 Apr 1968, 22:25
114 km NE of Hihifo, Tonga
A magnitude 6 mw earthquake at 10 km depth.
Published location
Where is 114 km NE 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.
-15.351000, -172.931000
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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
iscgem824323
Coordinates
-15.351, -172.931
Network
iscgem
Significance
559