QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem849021
USGS iscgem849021
7 Mar 1966, 21:29
40 km W of Nangong, China
A magnitude 6.5 mw earthquake at 23.7 km depth.
Published location
Where is 40 km W of Nangong, 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.
37.308000, 114.919000
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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
iscgem849021
Coordinates
37.308, 114.919
Network
iscgem
Significance
650