South Sudan earthquakes

M4.6 earthquake 99 km N of Torit, South Sudan

A magnitude 4.6 earthquake struck 99 km N of Torit, South Sudan on Thu, Jan 31, 1991, 8:13 AM GMT+2 (06:13 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.4 88 km N of Torit, South Sudan. This one was a foreshock.

Torit forecast More in South Sudan

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 4.6 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Thu, Jan 31, 1991, 8:13 AM GMT+2
UTC: 1991-01-31 06:13:10 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 5.307° N, 32.606° E
Region: South Sudan
Strongest shaking: VI, 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: VI, strong shaking
Peak ground acceleration: 25.0% of gravity
Peak ground velocity: 1.7 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from: OPERATOR_ASSIGNED

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.6 and up: 6 in the 60 days after this one and 3 in the 30 days before it.

After

Before

Earthquakes today South Sudan earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0004mcs (also filed as atlas19910131061310). Read Sat, Oct 3, 2026, 2:20 AM UTC.