M3.3 earthquake 69 km S of Koróni, Greece
A magnitude 3.3 earthquake struck 69 km S of Koróni, Greece on Wed, Aug 28, 1991, 9:08 AM GMT+3 (06:08 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.4 64 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
- 3.3 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1991-08-28 06:08:25 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 36.173° N, 21.905° 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: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.637 km W of Kýthira, Greece · 12816 days ago · 33 km deep · 61 km away
- 3.676 km SW of Kýthira, Greece · 12805 days ago · 33 km deep · 61 km away
- 3.230 km SW of Kýthira, Greece · 12788 days ago · 5 km deep · 76 km away
- 4.464 km WSW of Kýthira, Greece · 12775 days ago · 56 km deep · 57 km away
- 3.175 km SSW of Kýthira, Greece · 12772 days ago · 33 km deep · 94 km away
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0004vys. Read Sat, Oct 3, 2026, 2:10 PM UTC.