QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem892515
USGS iscgem892515
25 Feb 1952, 01:17
124 km SSE of Hihifo, Tonga
A magnitude 6.5 mw earthquake at 41.8 km depth.
Published location
Where is 124 km SSE 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.
-17.005000, -173.369000
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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
iscgem892515
Coordinates
-17.005, -173.369
Network
iscgem
Significance
642