QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000jh1y
USGS usp000jh1y
31 Mar 2012, 18:06
90 km N of Nuku‘alofa, Tonga
A magnitude 5.1 mb earthquake at 142.6 km depth.
Published location
Where is 90 km N of Nuku‘alofa, 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.
-20.326000, -175.234000
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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
usp000jh1y
Coordinates
-20.326, -175.234
Network
us
Significance
400