QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem907119
USGS iscgem907119
5 Nov 1931, 12:19
146 km SE of Altay, China
A magnitude 6.4 mw earthquake at 10 km depth.
Published location
Where is 146 km SE of Altay, 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.
46.940000, 89.530000
Open the interactive map ↗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.
Need a current safety answer?
Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
Continue exploring
Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem907119
Coordinates
46.94, 89.53
Network
iscgem
Significance
636