Turkey earthquakes

M3.4 earthquake 12 km SSE of Karaburun, Turkey

A magnitude 3.4 earthquake struck 12 km SSE of Karaburun, Turkey on Wed, Jul 31, 1991, 9:41 PM GMT+3 (18:41 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.7 7 km SSW of Marathókampos, Greece. 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 18:41:14 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
38.528° N, 26.545° 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: 4 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 3.42 km W of Foça, Turkey · 12848 days ago · 10 km deep · 23 km away
  2. 3.127 km N of Psará, Greece · 12817 days ago · 10 km deep · 88 km away
  3. 3.77 km SSW of Marathókampos, Greece · 12806 days ago · 19 km deep · 97 km away
  4. 3.57 km SSW of Urla, Turkey · 12803 days ago · 10 km deep · 33 km away

Before

  1. 3.413 km SSE of Karaburun, Turkey · 12851 days ago · 10 km deep · 1 km away
  2. 3.47 km SSW of Foça, Turkey · 12851 days ago · 10 km deep · 18 km away
  3. 4.08 km SW of Foça, Turkey · 12851 days ago · 10 km deep · 15 km away
  4. 3.37 km SW of Foça, Turkey · 12863 days ago · 10 km deep · 17 km away
  5. 2.88 km ENE of Zeytinda?, Turkey · 12864 days ago · 10 km deep · 74 km away
  6. 2.95 km E of Zeytinda?, Turkey · 12864 days ago · 10 km deep · 71 km away
  7. 3.617 km ESE of Alaçat?, Turkey · 12871 days ago · 14 km deep · 32 km away
  8. 3.47 km WNW of ?zmir, Turkey · 12874 days ago · 10 km deep · 46 km away
  9. 3.13 km WNW of Yeni?akran, Turkey · 12875 days ago · 10 km deep · 59 km away
  10. 3.112 km NE of Bergama, Turkey · 12876 days ago · 10 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0004uuj. Read Sat, Oct 3, 2026, 10:44 AM UTC.