QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hx29
USGS usp000hx29
14 Mar 2011, 03:16
150 km NW of Neiafu, Tonga
A magnitude 5.3 mwc earthquake at 202.9 km depth.
Published location
Where is 150 km NW of Neiafu, 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.
-17.576000, -174.853000
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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
usp000hx29
Coordinates
-17.576, -174.853
Network
us
Significance
432