Turkey earthquakes

M2.6 earthquake 8 km NNW of Marmara, Turkey

A magnitude 2.6 earthquake struck 8 km NNW of Marmara, Turkey on Fri, May 21, 2004, 3:01 AM GMT+3 (00:01 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M3.6 28 km ENE of Gelibolu, Turkey. 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
2.6 (md), micro
Local time
UTC
2004-05-21 00:01:33 UTC
Depth
15.0 km (9.3 mi), shallow
Epicenter
40.650° N, 27.503° E
Region
Turkey
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
117°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 2.84 km W of Çorlu, Turkey · 8168 days ago · 10 km deep · 60 km away
  2. 2.721 km W of Mudanya, Turkey · 8165 days ago · 10 km deep · 100 km away
  3. 2.814 km SSW of Kumba?, Turkey · 8164 days ago · 17 km deep · 16 km away
  4. 2.810 km WSW of Manyas, Turkey · 8163 days ago · 10 km deep · 77 km away
  5. 2.117 km W of Erdek, Turkey · 8162 days ago · 28 km deep · 27 km away
  6. 2.79 km S of Kumba?, Turkey · 8161 days ago · 7 km deep · 16 km away
  7. 3.112 km SW of Band?rma, Turkey · 8160 days ago · 10 km deep · 51 km away
  8. 2.712 km NE of Biga, Turkey · 8159 days ago · 2 km deep · 41 km away
  9. 2.814 km W of Erdek, Turkey · 8158 days ago · 16 km deep · 28 km away
  10. 2.722 km SW of Marmara Ere?lisi, Turkey · 8158 days ago · 5 km deep · 30 km away
  11. 2.722 km SW of Marmara Ere?lisi, Turkey · 8158 days ago · 5 km deep · 30 km away
  12. 2.56 km NNW of Kumba?, Turkey · 8157 days ago · 28 km deep · 32 km away
  13. 2.612 km S of Kumba?, Turkey · 8152 days ago · 13 km deep · 13 km away
  14. 3.628 km ENE of Gelibolu, Turkey · 8138 days ago · 20 km deep · 47 km away

Before

  1. 2.48 km NNE of Marmara, Turkey · 8169 days ago · 2 km deep · 9 km away
  2. 2.613 km SSE of Kumba?, Turkey · 8169 days ago · 6 km deep · 15 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000cvqm. Read Wed, Sep 30, 2026, 11:51 PM UTC.