M2.3 earthquake 12 km NW of Ar?köy, Turkey

Magnitude

2.3 (Md, duration), micro

Magnitude from

USGS National Earthquake Information Center

Local time

Sat, May 11, 1991, 5:42 AM GMT+3

UTC

1991-05-11 02:42:02 UTC

Depth

10.0 km (6.2 mi), shallow

Epicenter

41.311° N, 28.894° E

Region

Turkey

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

OPERATOR_ASSIGNED

• Zekeriya, TurkeyPopulation 22,558. Forecast17 kmNW
• Arnavutköy, TurkeyPopulation 198,165. Forecast19 kmNE
• Istanbul, TurkeyPopulation 15,701,602. Forecast33 kmN

After

1. 2.41 km ESE of Çatalca, TurkeySat, May 11, 5:25 PM GMT+3 · 12931 days ago · 10 km deep · 40 km away
2. 2.60 km SE of Çatalca, TurkeySun, May 12, 4:02 PM GMT+3 · 12930 days ago · 10 km deep · 41 km away
3. 2.86 km NNE of Esenyurt, TurkeyMon, May 13, 1:31 PM GMT+3 · 12929 days ago · 10 km deep · 30 km away
4. 3.13 km NNE of Ula?l?, TurkeyTue, May 14, 4:35 PM GMT+3 · 12928 days ago · 10 km deep · 94 km away
5. 2.47 km NNW of Balç?k, TurkeyWed, May 15, 4:34 PM GMT+3 · 12927 days ago · 5 km deep · 59 km away
6. 2.52 km ENE of Tav?anl?, TurkeyWed, May 15, 6:23 PM GMT+3 · 12927 days ago · 10 km deep · 76 km away
7. 2.68 km NE of Tav?anc?l, TurkeyThu, May 16, 12:42 PM GMT+3 · 12926 days ago · 10 km deep · 84 km away
8. 3.022 km N of A?va, TurkeyMon, May 20, 3:32 PM GMT+3 · 12922 days ago · 10 km deep · 81 km away
9. 2.66 km E of Çatalca, TurkeyTue, May 21, 4:45 PM GMT+3 · 12921 days ago · 10 km deep · 34 km away
10. 2.56 km NNE of ?i?li, TurkeyWed, May 22, 4:04 PM GMT+3 · 12920 days ago · 10 km deep · 23 km away
11. 2.62 km WNW of Kocadere, TurkeyFri, May 24, 2:29 AM GMT+3 · 12918 days ago · 10 km deep · 75 km away
12. 2.85 km NNE of Koruköy, TurkeyFri, May 24, 3:54 PM GMT+3 · 12918 days ago · 10 km deep · 72 km away
13. 2.72 km SSE of Çatalca, TurkeySun, May 26, 6:10 PM GMT+3 · 12916 days ago · 10 km deep · 41 km away
14. 2.61 km E of Çatalca, TurkeyTue, May 28, 4:18 PM GMT+3 · 12914 days ago · 10 km deep · 39 km away
15. 2.61 km SSE of Çatalca, TurkeyWed, May 29, 4:22 PM GMT+3 · 12913 days ago · 10 km deep · 41 km away
16. 2.56 km NNW of Ula?l?, TurkeySat, Jun 1, 4:02 PM GMT+3 · 12910 days ago · 10 km deep · 89 km away
17. 2.53 km W of Ar?köy, TurkeySat, Jun 1, 7:09 PM GMT+3 · 12910 days ago · 10 km deep · 11 km away
18. 2.55 km ENE of Çatalca, TurkeySun, Jun 2, 11:56 AM GMT+3 · 12909 days ago · 10 km deep · 35 km away
19. 2.815 km NNE of Vize, TurkeyMon, Jun 3, 1:01 PM GMT+3 · 12908 days ago · 10 km deep · 96 km away
20. 2.35 km E of Arnavutköy, TurkeyMon, Jun 3, 5:35 PM GMT+3 · 12908 days ago · 10 km deep · 17 km away
21. 2.46 km SW of Arnavutköy, TurkeyWed, Jun 5, 1:18 PM GMT+3 · 12906 days ago · 10 km deep · 25 km away
22. 2.412 km SW of Kocadere, TurkeySat, Jun 8, 5:32 PM GMT+3 · 12903 days ago · 10 km deep · 85 km away
23. 3.019 km WNW of Mudanya, TurkeyThu, Jun 13, 3:40 PM GMT+3 · 12898 days ago · 10 km deep · 98 km away
24. 3.03 km SSW of Ar?köy, TurkeySat, Jun 15, 3:55 PM GMT+3 · 12896 days ago · 10 km deep · 14 km away
25. 2.723 km SSE of Marmara Ere?lisi, TurkeyMon, Jun 17, 10:46 AM GMT+3 · 12894 days ago · 10 km deep · 89 km away
26. 3.14 km W of Ata?ehir, TurkeyTue, Jun 18, 11:14 AM GMT+3 · 12893 days ago · 10 km deep · 40 km away
27. 2.78 km N of Esenyurt, TurkeyTue, Jun 18, 1:28 PM GMT+3 · 12893 days ago · 10 km deep · 30 km away
28. 2.73 km ESE of Çatalca, TurkeyTue, Jun 18, 6:33 PM GMT+3 · 12893 days ago · 10 km deep · 38 km away
29. 2.77 km S of Adalar, TurkeyWed, Jun 19, 6:42 AM GMT+3 · 12892 days ago · 10 km deep · 60 km away
30. 2.55 km N of Çatalca, TurkeyThu, Jun 20, 5:22 PM GMT+3 · 12891 days ago · 10 km deep · 38 km away
31. 2.82 km WNW of Ç?narc?k, TurkeyFri, Jun 21, 11:35 AM GMT+3 · 12890 days ago · 10 km deep · 74 km away
32. 2.913 km NNW of Kavakl?, TurkeyFri, Jun 21, 7:50 PM GMT+3 · 12890 days ago · 10 km deep · 52 km away
33. 3.141 km SSW of Beylikdüzü, TurkeyMon, Jun 24, 12:42 PM GMT+3 · 12887 days ago · 10 km deep · 84 km away
34. 2.732 km SSE of Marmara Ere?lisi, TurkeyTue, Jun 25, 9:33 PM GMT+3 · 12885 days ago · 10 km deep · 95 km away
35. 2.87 km NNW of Körfez, TurkeyThu, Jun 27, 1:50 AM GMT+3 · 12884 days ago · 10 km deep · 89 km away
36. 2.926 km ENE of Ar?köy, TurkeyFri, Jun 28, 11:05 AM GMT+3 · 12883 days ago · 10 km deep · 32 km away
37. 3.037 km NE of Ar?köy, TurkeyFri, Jun 28, 11:09 AM GMT+3 · 12883 days ago · 10 km deep · 39 km away
38. 3.02 km SE of Ç?narc?k, TurkeySun, Jun 30, 2:21 AM GMT+3 · 12881 days ago · 10 km deep · 78 km away
39. 2.49 km NNW of Koruköy, TurkeySun, Jun 30, 11:12 PM GMT+3 · 12880 days ago · 10 km deep · 67 km away
40. 2.47 km NNW of Ç?narc?k, TurkeySun, Jun 30, 11:14 PM GMT+3 · 12880 days ago · 10 km deep · 69 km away
41. 2.610 km NNW of Koruköy, TurkeySun, Jun 30, 11:26 PM GMT+3 · 12880 days ago · 10 km deep · 66 km away
42. 2.82 km NE of Çatalca, TurkeyThu, Jul 4, 5:39 PM GMT+3 · 12877 days ago · 10 km deep · 39 km away
43. 2.88 km NNW of Ç?narc?k, TurkeyFri, Jul 5, 6:04 AM GMT+3 · 12876 days ago · 10 km deep · 68 km away

Before

1. 2.71 km WNW of Muratbey, TurkeyThu, May 9, 6:26 PM GMT+3 · 12933 days ago · 10 km deep · 42 km away
2. 2.66 km SSE of Yalova, TurkeyWed, May 8, 7:03 AM GMT+3 · 12934 days ago · 10 km deep · 87 km away
3. 2.724 km E of Ar?köy, TurkeyTue, May 7, 9:35 AM GMT+3 · 12935 days ago · 10 km deep · 35 km away
4. 2.66 km WNW of Yeniköy, TurkeyTue, May 7, 5:13 AM GMT+3 · 12935 days ago · 10 km deep · 89 km away
5. 2.96 km ENE of Çatalca, TurkeySat, May 4, 6:38 PM GMT+3 · 12938 days ago · 10 km deep · 35 km away
6. 3.17 km NNE of Ar?köy, TurkeyFri, May 3, 6:22 PM GMT+3 · 12939 days ago · 10 km deep · 13 km away
7. 2.63 km ESE of Gebze, TurkeyThu, May 2, 5:56 PM GMT+3 · 12940 days ago · 10 km deep · 75 km away
8. 2.51 km W of Çatalca, TurkeyThu, May 2, 2:52 PM GMT+3 · 12940 days ago · 10 km deep · 42 km away
9. 2.711 km NNE of Koruköy, TurkeyWed, May 1, 4:17 PM GMT+3 · 12941 days ago · 10 km deep · 68 km away
10. 2.6Western TurkeyWed, May 1, 3:51 PM GMT+3 · 12941 days ago · 10 km deep · 69 km away
11. 2.812 km SW of ?çmeler, TurkeyWed, May 1, 2:44 PM GMT+3 · 12941 days ago · 10 km deep · 66 km away
12. 3.212 km SW of ?çmeler, TurkeyWed, May 1, 2:36 PM GMT+3 · 12941 days ago · 10 km deep · 66 km away
13. 2.94 km SW of Ç?narc?k, TurkeyWed, May 1, 12:30 PM GMT+3 · 12941 days ago · 10 km deep · 78 km away
14. 2.833 km NE of Ar?köy, TurkeyWed, May 1, 12:11 PM GMT+3 · 12941 days ago · 10 km deep · 36 km away
15. 2.6Western TurkeyWed, May 1, 12:09 PM GMT+3 · 12941 days ago · 10 km deep · 39 km away
16. 3.411 km N of Koruköy, TurkeyWed, May 1, 2:38 AM GMT+3 · 12941 days ago · 9 km deep · 67 km away
17. 2.58 km N of ?i?li, TurkeySat, Apr 27, 6:15 PM GMT+3 · 12945 days ago · 11 km deep · 21 km away
18. 2.81 km ESE of Çatalca, TurkeySat, Apr 27, 3:42 PM GMT+3 · 12945 days ago · 10 km deep · 39 km away
19. 3.02 km WNW of Ç?narc?k, TurkeyFri, Apr 26, 7:28 PM GMT+3 · 12946 days ago · 10 km deep · 75 km away
20. 2.55 km NNE of Tav?anc?l, TurkeyFri, Apr 26, 12:19 PM GMT+3 · 12946 days ago · 7 km deep · 80 km away

From the USGS Earthquake Hazards Program and its partner networks, event usp0004rg3. Read Mon, Oct 5, 2026, 4:46 AM UTC.