QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us7000c6qt
USGS us7000c6qt

28 Oct 2020, 12:25

Pacific-Antarctic Ridge

A magnitude 5.4 mww earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

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.

-63.553600, -156.506700

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Map data © OpenStreetMap contributors

What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

Need a current safety answer?

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
us7000c6qt
Coordinates
-63.5536, -156.5067
Network
us
Significance
449