QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem776454
USGS iscgem776454
25 Feb 1972, 01:17
South Sandwich Islands region
A magnitude 6.3 mw earthquake at 29.1 km depth.
Published location
Where is South Sandwich Islands region?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-60.666000, -25.696000
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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
iscgem776454
Coordinates
-60.666, -25.696
Network
iscgem
Significance
611