QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usb000h3k3
USGS usb000h3k3
23 May 2013, 18:19
292 km SW of Vaini, Tonga
A magnitude 7.4 mww earthquake at 173.7 km depth.
Published location
Where is 292 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.
-23.009000, -177.232000
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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
usb000h3k3
Coordinates
-23.009, -177.232
Network
us
Significance
842