QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us6000ef4u
USGS us6000ef4u
21 May 2021, 14:21
21 km W of Dali, China
A magnitude 5.1 mb earthquake at 10 km depth.
Published location
Where is 21 km W of Dali, 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.
25.547600, 99.999300
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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
us6000ef4u
Coordinates
25.5476, 99.9993
Network
us
Significance
400