QQuakeFacts
USGS us70008cmt

20 Mar 2020, 03:03

178 km WSW of Altai, Mongolia

A magnitude 5.5 mww earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 178 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.

46.047900, 93.997300

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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
us70008cmt
Coordinates
46.0479, 93.9973
Network
us
Significance
466