QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000aanb
USGS usp000aanb
1 Mar 2001, 03:12
171 km WSW of Altai, Mongolia
A magnitude 5.1 mwc earthquake at 33 km depth.
Published location
Where is 171 km WSW of Altai, Mongolia?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
46.056000, 94.088000
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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
usp000aanb
Coordinates
46.056, 94.088
Network
us
Significance
400