Greece earthquakes

M3.3 earthquake 45 km SE of Ýdra, Greece

A magnitude 3.3 earthquake struck 45 km SE of Ýdra, Greece on Sat, Oct 21, 2006, 1:23 PM GMT+3 (10:23 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.8 24 km SSE of Spétses, 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 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2006-10-21 10:23:18 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
37.100° N, 23.870° E
Region
Greece
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

no people dead or missing; no people injured; no buildings damaged or destroyed

From the USGS event page for usp000evpu. U.S. Geological Survey text and figures are in the public domain.

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
Station coverage gap
190°, 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: 16 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 2.63 km SSE of Galatás, Greece · 7286 days ago · 28 km deep · 54 km away
  2. 3.052 km SE of Ýdra, Greece · 7286 days ago · 17 km deep · 14 km away
  3. 2.78 km SW of Galatás, Greece · 7284 days ago · 27 km deep · 58 km away
  4. 2.97 km NNE of Ligourión, Greece · 7282 days ago · 22 km deep · 94 km away
  5. 2.611 km ESE of Vathý, Greece · 7282 days ago · 10 km deep · 72 km away
  6. 3.22 km ENE of Sykiá, Greece · 7272 days ago · 21 km deep · 88 km away
  7. 3.07 km NE of Sykiá, Greece · 7269 days ago · 20 km deep · 84 km away
  8. 2.923 km SSE of Spétses, Greece · 7264 days ago · 31 km deep · 57 km away
  9. 3.727 km NNE of Sykiá, Greece · 7260 days ago · 25 km deep · 69 km away
  10. 3.225 km E of Géfyra, Greece · 7259 days ago · 24 km deep · 67 km away
  11. 3.213 km E of Sofikón, Greece · 7248 days ago · 15 km deep · 99 km away
  12. 3.035 km NE of Sykiá, Greece · 7246 days ago · 26 km deep · 56 km away
  13. 3.146 km S of Ýdra, Greece · 7241 days ago · 44 km deep · 37 km away
  14. 3.038 km NE of Géfyra, Greece · 7239 days ago · 20 km deep · 50 km away
  15. 2.59 km NNW of Palaiá Epídavros, Greece · 7234 days ago · 26 km deep · 96 km away
  16. 3.824 km SSE of Spétses, Greece · 7228 days ago · 10 km deep · 52 km away

Before

  1. 3.35 km W of Glyfáda, Greece · 7288 days ago · 16 km deep · 86 km away
  2. 3.2southern Greece · 7290 days ago · 2 km deep · 40 km away
  3. 3.059 km W of Mílos, Greece · 7291 days ago · 10 km deep · 48 km away
  4. 2.82 km E of Spáta, Greece · 7291 days ago · 17 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000evpu. Read Fri, Oct 2, 2026, 9:45 AM UTC.