M6.2 earthquake 140 km SSW of Bayanhongor, Mongolia
A magnitude 6.2 earthquake struck 140 km SSW of Bayanhongor, Mongolia on Mon, Feb 24, 1958, 7:27 PM GMT+7 (12:27 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M6.9 central Mongolia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.2 (mw), strong
- Local time
- UTC
- 1958-02-24 12:27:10 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 45.141° N, 99.713° E
- Region
- Mongolia
- Strongest shaking
- VII, very strong 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
- VII, very strong shaking
- Peak ground acceleration
- 27.3% of gravity
- Peak ground velocity
- 3.3 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
- ±0.36
- 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: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayMongolia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem883900. Read Tue, Sep 22, 2026, 4:32 AM UTC.