QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0004cx1
USGS usp0004cx1

3 Aug 1990, 10:15

55 km N of Zaysan, Kazakhstan

A magnitude 6.2 mw earthquake at 33.4 km depth.

Depth33.4 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated28 April 2022Latest timestamp stored in this record

Published location

Where is 55 km N of Zaysan, Kazakhstan?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

47.963000, 84.961000

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Map data © OpenStreetMap contributors

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

M 6.6

47 km NNE of Zaysan, Kazakhstan

M 5

32 km WSW of Aktash, Russia

M 5

43 km W of Ust’-Ulagan, Russia

Catalog fields and provenance
Event ID
usp0004cx1
Coordinates
47.963, 84.961
Network
us
Significance
591