QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0000cjx
USGS usp0000cjx
23 Aug 1975, 09:59
Novaya Zemlya, Russia
A magnitude 6.4 mb earthquake at 0 km depth.
Published location
Where is Novaya Zemlya, Russia?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
73.369000, 54.641000
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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
usp0000cjx
Coordinates
73.369, 54.641
Network
us
Significance
630