M6.4 earthquake 146 km SE of Altay, China
A magnitude 6.4 earthquake struck 146 km SE of Altay, China on Thu, Nov 5, 1931, 6:19 PM GMT+6 (12:19 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.4 (mw), strong
- Local time
- UTC
- 1931-11-05 12:19:34 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 46.940° N, 89.530° E
- Region
- China
- Strongest shaking
- VIII, severe shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VIII, severe shaking
- Peak ground acceleration
- 31.8% of gravity
- Peak ground velocity
- 3.6 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.23
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem907119. Read Tue, Sep 22, 2026, 3:14 PM UTC.