Turkey earthquakes

M3.7 earthquake 13 km NNE of Marmara, Turkey

A magnitude 3.7 earthquake struck 13 km NNE of Marmara, Turkey on Tue, Sep 21, 1999, 12:44 AM GMT+3 (21:44 UTC), 8 km (5 mi) below the surface.

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

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The earthquake

Magnitude
3.7 (Md, duration), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1999-09-20 21:44:31 UTC
Depth
7.9 km (4.9 mi), shallow
Epicenter
40.707° N, 27.591° 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.

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 3.214 km NNE of Marmara, Turkey · 9877 days ago · 6 km deep · 1 km away
  2. 2.8Western Turkey · 9876 days ago · 9 km deep · 9 km away
  3. 3.318 km SE of Kumba?, Turkey · 9876 days ago · 19 km deep · 8 km away
  4. 2.811 km ESE of Kumba?, Turkey · 9857 days ago · 6 km deep · 13 km away
  5. 2.78 km SW of Manyas, Turkey · 9853 days ago · 0 km deep · 83 km away
  6. 3.531 km NNW of Biga, Turkey · 9847 days ago · 11 km deep · 46 km away
  7. 3.017 km SSE of Kumba?, Turkey · 9841 days ago · 5 km deep · 5 km away
  8. 2.814 km SSE of Kumba?, Turkey · 9836 days ago · 4 km deep · 8 km away
  9. 2.914 km SSE of Beylikdüzü, Turkey · 9824 days ago · 5 km deep · 94 km away

Before

  1. 4.87 km NNE of Marmara, Turkey · 9877 days ago · 10 km deep · 7 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0009ere. Read Mon, Oct 5, 2026, 9:56 AM UTC.