QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem16963127
USGS iscgem16963127
22 Aug 1933, 11:57
south of Africa
A magnitude 6.1 mw earthquake at 10 km depth.
Published location
Where is south of Africa?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-49.849000, 30.097000
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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
iscgem16963127
Coordinates
-49.849, 30.097
Network
iscgem
Significance
576