Turkey earthquakes

M3.4 earthquake 2 km W of Foça, Turkey

A magnitude 3.4 earthquake struck 2 km W of Foça, Turkey on Wed, Jul 31, 1991, 11:01 PM GMT+3 (20:01 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.5 7 km SSW of Urla, Turkey. This one was a foreshock.

Foça forecastMore in Turkey

Map

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

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The earthquake

Magnitude
3.4 (Md, duration), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1991-07-31 20:01:59 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
38.669° N, 26.731° 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.

Depth from
OPERATOR_ASSIGNED

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 32 in the 30 days before it.

After

  1. 3.127 km N of Psará, Greece · 12816 days ago · 10 km deep · 100 km away
  2. 3.57 km SSW of Urla, Turkey · 12802 days ago · 10 km deep · 45 km away

Before

  1. 3.412 km SSE of Karaburun, Turkey · 12847 days ago · 10 km deep · 23 km away
  2. 2.87 km SW of Soma, Turkey · 12848 days ago · 10 km deep · 88 km away
  3. 2.92 km NE of K?rka?aç, Turkey · 12849 days ago · 10 km deep · 98 km away
  4. 3.04 km N of K?rka?aç, Turkey · 12850 days ago · 10 km deep · 98 km away
  5. 3.413 km SSE of Karaburun, Turkey · 12851 days ago · 10 km deep · 22 km away
  6. 3.47 km SSW of Foça, Turkey · 12851 days ago · 10 km deep · 7 km away
  7. 4.08 km SW of Foça, Turkey · 12851 days ago · 10 km deep · 7 km away
  8. 2.80 km SSE of K?rka?aç, Turkey · 12851 days ago · 10 km deep · 95 km away
  9. 3.311 km WNW of Zeytinliova, Turkey · 12857 days ago · 10 km deep · 82 km away
  10. 2.72 km N of K?rka?aç, Turkey · 12862 days ago · 10 km deep · 96 km away
  11. 2.94 km SSE of Soma, Turkey · 12863 days ago · 10 km deep · 95 km away
  12. 3.37 km SW of Foça, Turkey · 12863 days ago · 10 km deep · 6 km away
  13. 2.911 km ENE of Saruhanl?, Turkey · 12863 days ago · 10 km deep · 85 km away
  14. 2.88 km ENE of Zeytinda?, Turkey · 12864 days ago · 10 km deep · 51 km away
  15. 2.95 km E of Zeytinda?, Turkey · 12864 days ago · 10 km deep · 48 km away
  16. 2.75 km S of Soma, Turkey · 12865 days ago · 10 km deep · 93 km away
  17. 2.85 km WNW of K?rka?aç, Turkey · 12866 days ago · 10 km deep · 92 km away
  18. 2.75 km WNW of K?rka?aç, Turkey · 12866 days ago · 10 km deep · 92 km away
  19. 2.52 km NNE of K?rka?aç, Turkey · 12866 days ago · 10 km deep · 96 km away
  20. 2.55 km W of K?rka?aç, Turkey · 12866 days ago · 10 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0004uun. Read Sat, Oct 3, 2026, 12:07 AM UTC.