QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us2000ah3f
USGS us2000ah3f
6 Sept 2017, 20:05
61 km NNE of Hihifo, Tonga
A magnitude 5.1 mb earthquake at 71.7 km depth.
Published location
Where is 61 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.
-15.415500, -173.666500
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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
us2000ah3f
Coordinates
-15.4155, -173.6665
Network
us
Significance
400