QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000gtn0
USGS usp000gtn0
11 Feb 2009, 09:31
220 km WNW of Haveluloto, Tonga
A magnitude 5.5 mwb earthquake at 10 km depth.
Published location
Where is 220 km WNW of Haveluloto, 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.
-20.775000, -177.298000
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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
usp000gtn0
Coordinates
-20.775, -177.298
Network
us
Significance
465