QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem898362
USGS iscgem898362
23 Apr 1946, 05:56
western Indian-Antarctic Ridge
A magnitude 6.5 mw earthquake at 15 km depth.
Published location
Where is western Indian-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.
-50.225000, 139.608000
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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
iscgem898362
Coordinates
-50.225, 139.608
Network
iscgem
Significance
640