QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem902718
USGS iscgem902718
19 Oct 1938, 04:13
21 km NW of Ölgii, Mongolia
A magnitude 7 mw earthquake at 10 km depth.
Published location
Where is 21 km NW of Ölgii, 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.
49.081000, 89.720000
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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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Catalog fields and provenance
Event ID
iscgem902718
Coordinates
49.081, 89.72
Network
iscgem
Significance
745