Data last collected:
QuakeFactsEvidence report · prepared 25 October 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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem887636
Coordinates
45.189, 99.368
Network
iscgem
Significance
1009
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Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right 1957 Gobi-Altay, Mongolia Earthquake earthquake: magnitude 8.1 and depth | QuakeFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at 1957 Gobi-Altay, Mongolia Earthquake
Depth in another unit
The recorded event depth of 30 km is approximately 18.64 miles below the source reference surface. Depth alone does not describe damage or local hazard.
Interpreting the recorded coordinates
The published position for 1957 Gobi-Altay, Mongolia Earthquake is 45.189° north and 99.368° east. This expresses the source coordinates in hemispheres; it does not establish an entrance, public access or a safe route.