QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000jc68
USGS usp000jc68
14 Dec 2011, 11:07
Pacific-Antarctic Ridge
A magnitude 5.5 mwc earthquake at 10 km depth.
Published location
Where is Pacific-Antarctic Ridge?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-56.533000, -143.727000
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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
usp000jc68
Coordinates
-56.533, -143.727
Network
us
Significance
465