QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us6000f7ki
USGS us6000f7ki
17 Aug 2021, 18:24
280 km SW of Vaini, Tonga
A magnitude 5.8 mww earthquake at 157 km depth.
Published location
Where is 280 km SW of Vaini, 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.
-23.036700, -177.039500
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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
us6000f7ki
Coordinates
-23.0367, -177.0395
Network
us
Significance
518