M6.6 earthquake 22 km N of Margherita, Uganda
A magnitude 6.6 earthquake struck 22 km N of Margherita, Uganda on Sun, Mar 20, 1966, 4:42 AM GMT+3 (01:42 UTC), 30 km (19 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.6 (mw), strong
- Local time
- UTC
- 1966-03-20 01:42:53 UTC
- Depth
- 29.9 km (18.6 mi), shallow
- Epicenter
- 0.743° N, 29.840° E
- Region
- Uganda
- 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
- 57.0% of gravity
- Peak ground velocity
- 4.0 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
- ±0.20
- 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: 4 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayUganda earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem849400 (also filed as atlas19660320014251). Read Tue, Sep 22, 2026, 8:26 PM UTC.