M3.9 earthquake 107 km SSW of Koróni, Greece
A magnitude 3.9 earthquake struck 107 km SSW of Koróni, Greece on Sat, Jul 9, 1983, 5:39 PM GMT+3 (14:39 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 104 km WSW of Kýthira, Greece. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb), minor
- Local time
- UTC
- 1983-07-09 14:39:44 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 35.851° N, 21.703° 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 1.5 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 usp0001wpc. Read Sat, Sep 26, 2026, 2:06 PM UTC.