QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem793157
USGS iscgem793157
24 Aug 1970, 13:30
Pacific-Antarctic Ridge
A magnitude 6.4 mw earthquake at 16.7 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.
-56.412000, -142.635000
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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
iscgem793157
Coordinates
-56.412, -142.635
Network
iscgem
Significance
630