QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem897783
USGS iscgem897783
17 Mar 1947, 09:19
Qinghai-Sichuan border region, China
A magnitude 7.6 mw earthquake at 15 km depth.
Published location
Where is Qinghai-Sichuan border region, 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.
33.498000, 99.491000
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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
iscgem897783
Coordinates
33.498, 99.491
Network
iscgem
Significance
884