QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000g79c
USGS us1000g79c
12 Aug 2018, 17:43
53 km NE of Kolonga, Tonga
A magnitude 5 mb earthquake at 26.6 km depth.
Published location
Where is 53 km NE of Kolonga, 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.
-20.858800, -174.643900
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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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Catalog fields and provenance
Event ID
us1000g79c
Coordinates
-20.8588, -174.6439
Network
us
Significance
385