M7.3 earthquake central Mid-Atlantic Ridge
A magnitude 7.3 earthquake struck in the central Mid-Atlantic Ridge on Mon, May 20, 1918, 12:36 PM GMT-2 (14:36 UTC), 15 km (9 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 7.3 (mw), major
- Local time
- UTC
- 1918-05-20 14:36:06 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 7.409° N, 34.906° 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.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem913146. Read Tue, Sep 22, 2026, 8:44 AM UTC.