QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem897597
USGS iscgem897597
15 Oct 1948, 23:43
east of the South Sandwich Islands
A magnitude 6.4 mw earthquake at 15 km depth.
Published location
Where is east of the South Sandwich Islands?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-60.943000, -21.346000
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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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Catalog fields and provenance
Event ID
iscgem897597
Coordinates
-60.943, -21.346
Network
iscgem
Significance
632