29 Sept 2026, 13:06 UTC · Sep 29, 9:06 AM ET · PAGER green

M5.5 earthquake southern Mid-Atlantic Ridge

A magnitude 5.5 earthquake struck southern Mid-Atlantic Ridge at Sep 29, 9:06 AM ET, 10 km deep, moderate – felt widely, some damage to weak buildings.

M4.6 southern Mid-Atlantic RidgeM5.0 southern Mid-Atlantic RidgeM5.3 southern Mid-Atlantic RidgeM5.4 Tristan da Cunha regionM5.5 southern Mid-Atlantic Ridge
under 33–44–55–66+
Magnitude5.5 mww
Time29 Sept 2026, 13:06 UTC
Location-35.276°, -16.077° – southern Mid-Atlantic Ridge
Depth10.0 km
Felt reports0
Max. estimated intensity (MMI)0.0
PAGER alertgreen
USGS eventus6000tyc3
Within 100 km

Other earthquakes nearby this year

Mag.WhereWhen (ET)DepthFelt
5.4Tristan da Cunha region · PAGER greenFeb 10, 8:46 AM
248 d ago
10 km–
5.3southern Mid-Atlantic RidgeNov 20, 9:59 AM
330 d ago
10 km–
5.0southern Mid-Atlantic RidgeJan 25, 9:11 PM
264 d ago
10 km–
4.6southern Mid-Atlantic RidgeOct 10, 3:15 PM
6 d ago
10 km–
FAQ

About this earthquake

How strong was the southern Mid-Atlantic Ridge earthquake?

Magnitude 5.5 (mww), moderate – felt widely, some damage to weak buildings. Depth 10 km.

Was it felt?

No felt reports have been submitted to the USGS so far.

Were there aftershocks?

1 earthquakes within 100 km in the following two weeks are in our records, the strongest M4.6.

Earthquakes

More

Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.

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M5.5 earthquake southern Mid-Atlantic Ridge — 77.today