QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0000hzv
USGS usp0000hzv
21 Aug 1976, 22:49
99 km NNW of Jiangyou, China
A magnitude 6.4 ms earthquake at 33 km depth.
Published location
Where is 99 km NNW of Jiangyou, China?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
32.571000, 104.249000
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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
usp0000hzv
Coordinates
32.571, 104.249
Network
us
Significance
630