Tanzania earthquakes

M5.3 earthquake 115 km ESE of Madimba, Tanzania

A magnitude 5.3 earthquake struck 115 km ESE of Madimba, Tanzania on Thu, May 30, 1985, 10:32 AM GMT+2 (08:32 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.6 101 km ESE of Madimba, Tanzania. This one was a foreshock.

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

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The earthquake

Magnitude: 5.3 (mw), moderate
Local time: Thu, May 30, 1985, 10:32 AM GMT+2
UTC: 1985-05-30 08:32:17 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 10.657° S, 41.355° E
Region: Tanzania
Tsunami flag: No
Status: Reviewed by a seismologist

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 2.3 and up: 21 in the 60 days after this one and 9 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002fay (also filed as gcmtb053085a, gcmt19850530083217, iscgem526363). Read Wed, Sep 30, 2026, 12:03 AM UTC.