QQuakeFacts
USGS iscgem794098

29 Jul 1970, 06:50

111 km W of Tumxuk, China

A magnitude 6 mw earthquake at 14.8 km depth.

Depth14.8 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 111 km W of Tumxuk, China?

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

39.872000, 77.754000

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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
iscgem794098
Coordinates
39.872, 77.754
Network
iscgem
Significance
556