M3.1 earthquake 85 km S of Koróni, Greece
A magnitude 3.1 earthquake struck 85 km S of Koróni, Greece on Wed, Apr 28, 2004, 4:37 AM GMT+3 (01:37 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.5 8 km NW of Methóni, Greece. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.1 (md), minor
- Local time
- UTC
- 2004-04-28 01:37:35 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 36.030° N, 21.850° 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.
- Station coverage gap
- 258°, poorly surrounded by stations
- Stations used
- 4
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 2 in the 30 days before it.
After
- 3.693 km WSW of Kýthira, Greece · 8191 days ago · 45 km deep · 34 km away
- 3.273 km WSW of Kýthira, Greece · 8190 days ago · 23 km deep · 37 km away
- 3.071 km W of Kýthira, Greece · 8190 days ago · 2 km deep · 32 km away
- 3.886 km WSW of Kýthira, Greece · 8188 days ago · 5 km deep · 20 km away
- 3.573 km SSE of Koróni, Greece · 8186 days ago · 19 km deep · 31 km away
- 4.58 km NW of Methóni, Greece · 8185 days ago · 14 km deep · 94 km away
- 3.063 km S of Koróni, Greece · 8176 days ago · 10 km deep · 22 km away
- 3.378 km S of Koróni, Greece · 8156 days ago · 27 km deep · 9 km away
- 3.329 km SSW of Methóni, Greece · 8155 days ago · 5 km deep · 62 km away
- 3.556 km SSW of Kýthira, Greece · 8153 days ago · 37 km deep · 87 km away
- 4.2102 km SSW of Methóni, Greece · 8133 days ago · 5 km deep · 49 km away
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000ctmc. Read Wed, Sep 30, 2026, 10:18 PM UTC.