QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/cent19030201093400000
USGS cent19030201093400000
1 Feb 1903, 09:34
Western Mongolia
A magnitude 7.1 mw earthquake at 0 km depth.
Published location
Where is Western 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.
48.000000, 98.000000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
cent19030201093400000
Coordinates
48, 98
Network
cent
Significance
776