QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hyyr
USGS usp000hyyr
31 Mar 2011, 01:11
254 km SSE of Alo, Wallis and Futuna
A magnitude 6.3 mww earthquake at 15.5 km depth.
Published location
Where is 254 km SSE of Alo, Wallis and Futuna?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-16.541000, -177.517000
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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
usp000hyyr
Coordinates
-16.541, -177.517
Network
us
Significance
611