QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us600052zu
USGS us600052zu
9 Aug 2019, 18:45
121 km ENE of ‘Ohonua, Tonga
A magnitude 5.3 mww earthquake at 10 km depth.
Published location
Where is 121 km ENE 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.
-21.060500, -173.812100
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
us600052zu
Coordinates
-21.0605, -173.8121
Network
us
Significance
432