QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem887636
USGS iscgem887636
4 Dec 1957, 03:37
1957 Gobi-Altay, Mongolia Earthquake
A magnitude 8.1 mw earthquake at 30 km depth.
Published location
Where is 1957 Gobi-Altay, Mongolia Earthquake?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
45.189000, 99.368000
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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
iscgem887636
Coordinates
45.189, 99.368
Network
iscgem
Significance
1009