M2.5 earthquake 5 km N of Çatalca, Turkey

Magnitude

2.5 (Md, duration), micro

Magnitude from

USGS National Earthquake Information Center

Local time

Thu, Jun 20, 1991, 5:22 PM GMT+3

UTC

1991-06-20 14:22:23 UTC

Depth

10.0 km (6.2 mi), shallow

Epicenter

41.191° N, 28.466° E

Region

Turkey

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

OPERATOR_ASSIGNED

• Çatalca, TurkeyPopulation 39,678. Forecast6 kmN
• Büyükçekmece, TurkeyPopulation 163,140. Forecast21 kmNNW
• Istanbul, TurkeyPopulation 15,701,602. Forecast45 kmWNW

After

1. 2.82 km WNW of Ç?narc?k, TurkeyFri, Jun 21, 11:35 AM GMT+3 · 12888 days ago · 10 km deep · 79 km away
2. 2.913 km NNW of Kavakl?, TurkeyFri, Jun 21, 7:50 PM GMT+3 · 12887 days ago · 10 km deep · 15 km away
3. 3.141 km SSW of Beylikdüzü, TurkeyMon, Jun 24, 12:42 PM GMT+3 · 12885 days ago · 10 km deep · 63 km away
4. 3.020 km WNW of Mudanya, TurkeyTue, Jun 25, 5:53 AM GMT+3 · 12884 days ago · 10 km deep · 86 km away
5. 2.727 km S of Marmara Ere?lisi, TurkeyTue, Jun 25, 9:03 PM GMT+3 · 12883 days ago · 10 km deep · 70 km away
6. 2.732 km SSE of Marmara Ere?lisi, TurkeyTue, Jun 25, 9:33 PM GMT+3 · 12883 days ago · 10 km deep · 62 km away
7. 2.926 km ENE of Ar?köy, TurkeyFri, Jun 28, 11:05 AM GMT+3 · 12881 days ago · 10 km deep · 70 km away
8. 3.037 km NE of Ar?köy, TurkeyFri, Jun 28, 11:09 AM GMT+3 · 12881 days ago · 10 km deep · 77 km away
9. 3.02 km SE of Ç?narc?k, TurkeySun, Jun 30, 2:21 AM GMT+3 · 12879 days ago · 10 km deep · 84 km away
10. 2.49 km NNW of Koruköy, TurkeySun, Jun 30, 11:12 PM GMT+3 · 12878 days ago · 10 km deep · 75 km away
11. 2.47 km NNW of Ç?narc?k, TurkeySun, Jun 30, 11:14 PM GMT+3 · 12878 days ago · 10 km deep · 75 km away
12. 2.610 km NNW of Koruköy, TurkeySun, Jun 30, 11:26 PM GMT+3 · 12878 days ago · 10 km deep · 75 km away
13. 2.82 km NE of Çatalca, TurkeyThu, Jul 4, 5:39 PM GMT+3 · 12875 days ago · 10 km deep · 4 km away
14. 2.88 km NNW of Ç?narc?k, TurkeyFri, Jul 5, 6:04 AM GMT+3 · 12874 days ago · 10 km deep · 74 km away
15. 2.69 km NE of Çatalca, TurkeyThu, Jul 11, 5:36 PM GMT+3 · 12868 days ago · 10 km deep · 6 km away
16. 2.62 km ENE of Çatalca, TurkeyThu, Jul 11, 5:55 PM GMT+3 · 12868 days ago · 10 km deep · 5 km away
17. 2.80 km E of Çatalca, TurkeyFri, Jul 12, 5:53 PM GMT+3 · 12867 days ago · 10 km deep · 5 km away
18. 2.98 km SW of Arnavutköy, TurkeyFri, Jul 12, 7:23 PM GMT+3 · 12867 days ago · 10 km deep · 20 km away
19. 2.90 km SW of Çatalca, TurkeyTue, Jul 16, 5:12 PM GMT+3 · 12863 days ago · 10 km deep · 6 km away
20. 2.31 km NW of Balç?k, TurkeyWed, Jul 17, 3:25 PM GMT+3 · 12862 days ago · 10 km deep · 87 km away
21. 2.514 km NE of Sancaktepe, TurkeySun, Jul 21, 8:51 PM GMT+3 · 12857 days ago · 10 km deep · 77 km away
22. 2.47 km N of Küçükkumla, TurkeyMon, Jul 22, 1:48 PM GMT+3 · 12857 days ago · 10 km deep · 90 km away
23. 2.712 km NNE of Tav?anl?, TurkeyTue, Jul 23, 4:33 PM GMT+3 · 12856 days ago · 10 km deep · 98 km away
24. 2.518 km E of Kumba?, TurkeyFri, Jul 26, 2:36 AM GMT+3 · 12853 days ago · 10 km deep · 76 km away
25. 2.62 km NNW of Tav?anl?, TurkeyFri, Jul 26, 12:47 PM GMT+3 · 12853 days ago · 10 km deep · 95 km away
26. 2.88 km N of Esenyurt, TurkeySun, Jul 28, 12:59 PM GMT+3 · 12851 days ago · 10 km deep · 19 km away
27. 2.411 km NNW of Yalova, TurkeyMon, Jul 29, 1:47 AM GMT+3 · 12850 days ago · 10 km deep · 80 km away

Before

1. 3.217 km NNE of Marmara, TurkeyThu, Jun 20, 11:01 AM GMT+3 · 12889 days ago · 10 km deep · 86 km away
2. 2.611 km N of Marmara, TurkeyWed, Jun 19, 6:27 PM GMT+3 · 12890 days ago · 10 km deep · 96 km away
3. 2.77 km S of Adalar, TurkeyWed, Jun 19, 6:42 AM GMT+3 · 12890 days ago · 10 km deep · 71 km away
4. 2.73 km ESE of Çatalca, TurkeyTue, Jun 18, 6:33 PM GMT+3 · 12891 days ago · 10 km deep · 7 km away
5. 2.78 km N of Esenyurt, TurkeyTue, Jun 18, 1:28 PM GMT+3 · 12891 days ago · 10 km deep · 20 km away
6. 3.14 km W of Ata?ehir, TurkeyTue, Jun 18, 11:14 AM GMT+3 · 12891 days ago · 10 km deep · 55 km away
7. 2.723 km SSE of Marmara Ere?lisi, TurkeyMon, Jun 17, 10:46 AM GMT+3 · 12892 days ago · 10 km deep · 55 km away
8. 3.03 km SSW of Ar?köy, TurkeySat, Jun 15, 3:55 PM GMT+3 · 12894 days ago · 10 km deep · 43 km away
9. 3.111 km SSW of Kumba?, TurkeyThu, Jun 13, 5:58 PM GMT+3 · 12896 days ago · 10 km deep · 100 km away
10. 3.019 km WNW of Mudanya, TurkeyThu, Jun 13, 3:40 PM GMT+3 · 12896 days ago · 10 km deep · 85 km away
11. 2.412 km SW of Kocadere, TurkeySat, Jun 8, 5:32 PM GMT+3 · 12901 days ago · 10 km deep · 81 km away
12. 2.46 km SW of Arnavutköy, TurkeyWed, Jun 5, 1:18 PM GMT+3 · 12904 days ago · 10 km deep · 20 km away
13. 2.624 km ESE of Kumba?, TurkeyTue, Jun 4, 1:45 AM GMT+3 · 12905 days ago · 10 km deep · 75 km away
14. 2.35 km E of Arnavutköy, TurkeyMon, Jun 3, 5:35 PM GMT+3 · 12906 days ago · 10 km deep · 28 km away
15. 2.815 km NNE of Vize, TurkeyMon, Jun 3, 1:01 PM GMT+3 · 12906 days ago · 10 km deep · 75 km away
16. 2.55 km ENE of Çatalca, TurkeySun, Jun 2, 11:56 AM GMT+3 · 12907 days ago · 10 km deep · 6 km away
17. 2.53 km W of Ar?köy, TurkeySat, Jun 1, 7:09 PM GMT+3 · 12908 days ago · 10 km deep · 41 km away
18. 2.69 km N of Band?rma, TurkeyThu, May 30, 6:40 PM GMT+3 · 12910 days ago · 10 km deep · 94 km away
19. 2.61 km SSE of Çatalca, TurkeyWed, May 29, 4:22 PM GMT+3 · 12911 days ago · 10 km deep · 7 km away
20. 2.61 km E of Çatalca, TurkeyTue, May 28, 4:18 PM GMT+3 · 12912 days ago · 10 km deep · 5 km away

From the USGS Earthquake Hazards Program and its partner networks, event usp0004t75. Read Sat, Oct 3, 2026, 3:57 AM UTC.