QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00002tp
USGS usp00002tp
23 Jul 1973, 02:22
88 km SSE of Kurchatov, Kazakhstan
A magnitude 6.3 mb earthquake at 0 km depth.
Published location
Where is 88 km SSE of Kurchatov, Kazakhstan?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
49.986000, 78.853000
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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
usp00002tp
Coordinates
49.986, 78.853
Network
us
Significance
611