QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000h260
USGS usp000h260
1 Oct 2009, 14:33
54 km NE of Hihifo, Tonga
A magnitude 5.1 mwc earthquake at 10 km depth.
Published location
Where is 54 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.
-15.595000, -173.447000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
usp000h260
Coordinates
-15.595, -173.447
Network
us
Significance
400