QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us10007uep
USGS us10007uep
20 Jan 2017, 17:36
145 km SSW of Hihifo, Tonga
A magnitude 5.1 mb earthquake at 109.9 km depth.
Published location
Where is 145 km SSW 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.
-17.241200, -174.068900
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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
us10007uep
Coordinates
-17.2412, -174.0689
Network
us
Significance
400