QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us200030aa
USGS us200030aa
27 Jul 2015, 03:59
138 km SSE of ‘Ohonua, Tonga
A magnitude 5.1 mb earthquake at 10 km depth.
Published location
Where is 138 km SSE 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.
-22.549700, -174.618300
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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
us200030aa
Coordinates
-22.5497, -174.6183
Network
us
Significance
400