Turkey earthquakes

M2.8 earthquake 20 km NNW of Biga, Turkey

A magnitude 2.8 earthquake struck 20 km NNW of Biga, Turkey on Sat, Jul 13, 1991, 1:12 AM GMT+3 (22:12 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.4 23 km NW of Eceabat, Turkey. This one was a foreshock.

Biga 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
2.8 (Md, duration), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1991-07-12 22:12:20 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
40.396° N, 27.148° 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: 7 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 3.025 km S of Enez, Turkey · 12865 days ago · 10 km deep · 88 km away
  2. 3.29 km NW of Bal?kesir, Turkey · 12863 days ago · 10 km deep · 95 km away
  3. 3.322 km WNW of Gelibolu, Turkey · 12860 days ago · 10 km deep · 61 km away
  4. 3.222 km WNW of Gelibolu, Turkey · 12860 days ago · 10 km deep · 62 km away
  5. 3.423 km NW of Eceabat, Turkey · 12859 days ago · 10 km deep · 80 km away
  6. 3.221 km SSE of Biga, Turkey · 12854 days ago · 10 km deep · 41 km away
  7. 2.518 km E of Kumba?, Turkey · 12853 days ago · 10 km deep · 67 km away

Before

  1. 2.918 km NE of Hamdibey, Turkey · 12871 days ago · 10 km deep · 53 km away
  2. 2.49 km SSW of Erdek, Turkey · 12877 days ago · 10 km deep · 53 km away
  3. 2.510 km N of Gönen, Turkey · 12879 days ago · 10 km deep · 47 km away
  4. 2.824 km NNW of Eceabat, Turkey · 12881 days ago · 10 km deep · 72 km away
  5. 2.732 km SSE of Marmara Ere?lisi, Turkey · 12883 days ago · 10 km deep · 88 km away
  6. 2.727 km S of Marmara Ere?lisi, Turkey · 12883 days ago · 10 km deep · 74 km away
  7. 3.018 km SE of Biga, Turkey · 12888 days ago · 10 km deep · 38 km away
  8. 3.217 km NNE of Marmara, Turkey · 12889 days ago · 10 km deep · 56 km away
  9. 2.611 km N of Marmara, Turkey · 12889 days ago · 10 km deep · 46 km away
  10. 3.210 km NE of Bozcaada, Turkey · 12890 days ago · 10 km deep · 100 km away
  11. 2.723 km SSE of Marmara Ere?lisi, Turkey · 12892 days ago · 10 km deep · 91 km away
  12. 3.34 km WNW of Manyas, Turkey · 12893 days ago · 13 km deep · 75 km away
  13. 3.111 km SSW of Kumba?, Turkey · 12896 days ago · 10 km deep · 49 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0004u2t. Read Sat, Oct 3, 2026, 2:35 AM UTC.