M3.1 earthquake 21 km WNW of Palaióchora, Greece
A magnitude 3.1 earthquake struck 21 km WNW of Palaióchora, Greece on Sun, Dec 21, 2003, 1:35 AM GMT+2 (23:35 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M4.1 20 km SSW of Kastrí, 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
- 2003-12-20 23:35:50 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 35.330° N, 23.480° 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
- 205°, poorly surrounded by stations
- Stations used
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 3 in the 30 days before it.
After
- 3.273 km W of Palaióchora, Greece · 8319 days ago · 13 km deep · 57 km away
- 3.062 km W of Kíssamos, Greece · 8311 days ago · 12 km deep · 50 km away
- 3.42 km WSW of Kastrí, Greece · 8302 days ago · 20 km deep · 77 km away
- 4.120 km SSW of Kastrí, Greece · 8300 days ago · 20 km deep · 85 km away
- 3.318 km NNE of Mouzourás, Greece · 8295 days ago · 10 km deep · 77 km away
- 3.589 km SSW of Kýthira, Greece · 8291 days ago · 22 km deep · 89 km away
- 3.533 km W of Palaióchora, Greece · 8287 days ago · 31 km deep · 17 km away
- 3.348 km SW of Kastrí, Greece · 8284 days ago · 19 km deep · 90 km away
- 3.442 km SSW of Kýthira, Greece · 8273 days ago · 19 km deep · 74 km away
- 3.47 km SW of Atsipópoulo, Greece · 8266 days ago · 37 km deep · 81 km away
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000cfpt. Read Wed, Sep 30, 2026, 10:20 PM UTC.