M4.6 earthquake 12 km SSW of Sými, Greece
A magnitude 4.6 earthquake struck 12 km SSW of Sými, Greece on Thu, Apr 21, 1983, 8:23 AM GMT+3 (05:23 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1983-04-21 05:23:40 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 36.507° N, 27.789° E
- Region
- Greece
- 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001umh. Read Sun, Oct 4, 2026, 8:44 PM UTC.