QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us6000ef4i
USGS us6000ef4i
21 May 2021, 19:13
189 km W of Oula Xiuma, China
A magnitude 5.5 mb earthquake at 10 km depth.
Published location
Where is 189 km W of Oula Xiuma, 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.
34.480800, 99.080500
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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
us6000ef4i
Coordinates
34.4808, 99.0805
Network
us
Significance
650