M4.7 earthquake 234 km ENE of Port Mathurin, Mauritius
A magnitude 4.7 earthquake struck 234 km ENE of Port Mathurin, Mauritius on Sat, Aug 20, 1983, 5:44 PM GMT+4 (13:44 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
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1983-08-20 13:44:20 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 18.678° S, 65.376° E
- Region
- Mauritius
- 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 1.7 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 usp0001xte. Read Fri, Oct 2, 2026, 6:06 PM UTC.