QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem912340
USGS iscgem912340
14 Oct 1921, 16:43
75 km NNW of Dêqên, China
A magnitude 6.2 mw earthquake at 15 km depth.
Published location
Where is 75 km NNW of Dêqên, 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.
30.579000, 90.377000
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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
iscgem912340
Coordinates
30.579, 90.377
Network
iscgem
Significance
582