QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000b5a9
USGS usp000b5a9
31 May 2002, 19:28
78 km E of ‘Ohonua, Tonga
A magnitude 5.2 mb earthquake at 33 km depth.
Published location
Where is 78 km E of ‘Ohonua, 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.
-21.347000, -174.189000
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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
usp000b5a9
Coordinates
-21.347, -174.189
Network
us
Significance
416