QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem850482
USGS iscgem850482
25 Feb 1966, 22:50
115 km NE of Hihifo, Tonga
A magnitude 6 mw earthquake at 21.3 km depth.
Published location
Where is 115 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.
-15.251000, -172.995000
Open the interactive map ↗Map data © OpenStreetMap contributors
What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
Need a current safety answer?
Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
Continue exploring
Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem850482
Coordinates
-15.251, -172.995
Network
iscgem
Significance
561