M4.8 earthquake central Mid-Atlantic Ridge
A magnitude 4.8 earthquake struck in the central Mid-Atlantic Ridge on Thu, Nov 22, 1984, 7:26 AM GMT-3 (10:26 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1984-11-22 10:26:58 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 8.220° N, 39.571° W
- 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
Nearby
Within 100 km, magnitude 1.8 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00029a1. Read Tue, Sep 22, 2026, 9:38 PM UTC.