M3.4 earthquake 23 km S of Koróni, Greece
A magnitude 3.4 earthquake struck 23 km S of Koróni, Greece on Mon, Jul 25, 1988, 1:20 AM GMT+3 (22:20 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.1 83 km S of Koróni, Greece. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.4 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1988-07-24 22:20:00 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 36.589° N, 21.918° 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: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.349 km WSW of Gargaliánoi, Greece · 13917 days ago · 10 km deep · 80 km away
- 4.045 km WSW of Kýthira, Greece · 13910 days ago · 62 km deep · 83 km away
- 4.183 km S of Koróni, Greece · 13905 days ago · 56 km deep · 61 km away
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0003j6e. Read Thu, Oct 1, 2026, 12:26 PM UTC.