Greece earthquakes

M3.3 earthquake 66 km S of Koróni, Greece

A magnitude 3.3 earthquake struck 66 km S of Koróni, Greece on Sun, Dec 21, 2003, 9:35 AM GMT+2 (07:35 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M4.9 50 km WSW of Kýthira, Greece. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.3 (md), minor
Local time
UTC
2003-12-21 07:35:48 UTC
Depth
25.0 km (15.5 mi), shallow
Epicenter
36.200° N, 21.970° 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
245°, poorly surrounded by stations
Stations used
5

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 3.444 km S of Methóni, Greece · 8318 days ago · 3 km deep · 30 km away
  2. 4.443 km W of Kýthira, Greece · 8313 days ago · 18 km deep · 50 km away
  3. 3.755 km W of Kýthira, Greece · 8312 days ago · 10 km deep · 39 km away
  4. 3.782 km S of Koróni, Greece · 8311 days ago · 5 km deep · 17 km away
  5. 3.369 km S of Koróni, Greece · 8308 days ago · 10 km deep · 6 km away
  6. 3.7153 km S of Methóni, Greece · 8305 days ago · 28 km deep · 95 km away
  7. 3.34 km WSW of Kýthira, Greece · 8304 days ago · 23 km deep · 88 km away
  8. 3.558 km SSE of Koróni, Greece · 8302 days ago · 5 km deep · 16 km away
  9. 3.559 km S of Koróni, Greece · 8297 days ago · 24 km deep · 7 km away
  10. 3.589 km SSW of Kýthira, Greece · 8291 days ago · 22 km deep · 98 km away
  11. 3.218 km W of Pýlos, Greece · 8285 days ago · 5 km deep · 93 km away
  12. 3.136 km SSE of Koróni, Greece · 8282 days ago · 54 km deep · 37 km away
  13. 3.30 km NW of Pýlos, Greece · 8277 days ago · 5 km deep · 84 km away
  14. 3.442 km SSW of Kýthira, Greece · 8273 days ago · 19 km deep · 93 km away
  15. 3.261 km S of Koróni, Greece · 8273 days ago · 6 km deep · 6 km away
  16. 3.316 km WSW of Kýthira, Greece · 8272 days ago · 45 km deep · 77 km away
  17. 3.050 km S of Koróni, Greece · 8270 days ago · 5 km deep · 16 km away
  18. 4.950 km WSW of Kýthira, Greece · 8270 days ago · 16 km deep · 48 km away
  19. 3.738 km S of Methóni, Greece · 8264 days ago · 30 km deep · 36 km away

Before

  1. 3.585 km S of Koróni, Greece · 8321 days ago · 7 km deep · 21 km away
  2. 4.4southern Greece · 8322 days ago · 11 km deep · 25 km away
  3. 3.376 km W of Kýthira, Greece · 8322 days ago · 5 km deep · 20 km away
  4. 3.5133 km WSW of Kýthira, Greece · 8326 days ago · 59 km deep · 77 km away
  5. 3.348 km S of Koróni, Greece · 8326 days ago · 3 km deep · 18 km away
  6. 4.0118 km WSW of Kýthira, Greece · 8328 days ago · 21 km deep · 56 km away
  7. 3.330 km SW of Methóni, Greece · 8337 days ago · 10 km deep · 60 km away
  8. 3.245 km SSE of Koróni, Greece · 8340 days ago · 5 km deep · 25 km away
  9. 3.747 km SSW of Methóni, Greece · 8341 days ago · 28 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000cfqh. Read Wed, Sep 30, 2026, 9:28 PM UTC.