1 Oct 2026, 07:40 UTC · Oct 1, 3:40 AM ET

M4.6 earthquake northern Mid-Atlantic Ridge

A magnitude 4.6 earthquake struck northern Mid-Atlantic Ridge at Oct 1, 3:40 AM ET, 10 km deep, light – felt by most people nearby, rattling windows, rarely damage.

M4.6 northern Mid-Atlantic RidgeM4.6 northern Mid-Atlantic RidgeM4.7 northern Mid-Atlantic RidgeM4.9 northern Mid-Atlantic RidgeM4.9 northern Mid-Atlantic RidgeM4.9 northern Mid-Atlantic Ridge
under 33–44–55–66+
Magnitude4.6 mb
Time1 Oct 2026, 07:40 UTC
Location31.236°, -41.585° – northern Mid-Atlantic Ridge
Depth10.0 km
Felt reports0
USGS eventus6000tyqx
Within 100 km

Other earthquakes nearby this year

Mag.WhereWhen (ET)DepthFelt
4.9northern Mid-Atlantic RidgeOct 8, 5:34 PM
8 d ago
10 km–
4.9northern Mid-Atlantic RidgeMar 20, 1:00 AM
211 d ago
10 km–
4.9northern Mid-Atlantic RidgeMar 1, 11:41 AM
229 d ago
10 km–
4.7northern Mid-Atlantic RidgeOct 1, 6:03 AM
15 d ago
10 km–
4.6northern Mid-Atlantic RidgeApr 17, 6:08 PM
182 d ago
10 km–
FAQ

About this earthquake

How strong was the northern Mid-Atlantic Ridge earthquake?

Magnitude 4.6 (mb), light – felt by most people nearby, rattling windows, rarely damage. Depth 10 km.

Was it felt?

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

Were there aftershocks?

2 earthquakes within 100 km in the following two weeks are in our records, the strongest M4.9.

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.

Cookies

We measure traffic so we know which stories you care about. You can change your choice at any time.

M4.6 earthquake northern Mid-Atlantic Ridge — 77.today