M5.9 earthquake 101 km ENE of Massawa, Eritrea
A magnitude 5.9 earthquake struck 101 km ENE of Massawa, Eritrea on Wed, Sep 21, 1921, 1:31 PM GMT+2:30 (11:01 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
- 5.9 (mw), moderate
- Local time
- UTC
- 1921-09-21 11:01:43 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 15.886° N, 40.382° E
- Region
- Eritrea
- 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
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 iscgem912321. Read Wed, Sep 23, 2026, 12:43 AM UTC.