M3.2 earthquake 17 km NNE of Marmara, Turkey

Magnitude

3.2 (Md, duration), minor

Magnitude from

USGS National Earthquake Information Center

Local time

Thu, Jun 20, 1991, 11:01 AM GMT+3

UTC

1991-06-20 08:01:13 UTC

Depth

10.0 km (6.2 mi), shallow

Epicenter

40.720° N, 27.657° E

Region

Turkey

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

OPERATOR_ASSIGNED

• Tekirdağ, TurkeyPopulation 122,287. Forecast31 kmSSE
• Istanbul, TurkeyPopulation 15,701,602. Forecast114 kmWSW

After

1. 2.55 km N of Çatalca, TurkeyThu, Jun 20, 5:22 PM GMT+3 · 12890 days ago · 10 km deep · 86 km away
2. 3.018 km SE of Biga, TurkeyFri, Jun 21, 12:10 AM GMT+3 · 12890 days ago · 10 km deep · 73 km away
3. 2.913 km NNW of Kavakl?, TurkeyFri, Jun 21, 7:50 PM GMT+3 · 12889 days ago · 10 km deep · 76 km away
4. 3.141 km SSW of Beylikdüzü, TurkeyMon, Jun 24, 12:42 PM GMT+3 · 12886 days ago · 10 km deep · 70 km away
5. 3.020 km WNW of Mudanya, TurkeyTue, Jun 25, 5:53 AM GMT+3 · 12885 days ago · 10 km deep · 90 km away
6. 2.727 km S of Marmara Ere?lisi, TurkeyTue, Jun 25, 9:03 PM GMT+3 · 12885 days ago · 10 km deep · 21 km away
7. 2.732 km SSE of Marmara Ere?lisi, TurkeyTue, Jun 25, 9:33 PM GMT+3 · 12885 days ago · 10 km deep · 38 km away
8. 2.510 km N of Gönen, TurkeySat, Jun 29, 7:53 PM GMT+3 · 12881 days ago · 10 km deep · 59 km away
9. 2.49 km SSW of Erdek, TurkeyMon, Jul 1, 9:36 PM GMT+3 · 12879 days ago · 10 km deep · 46 km away
10. 2.82 km NE of Çatalca, TurkeyThu, Jul 4, 5:39 PM GMT+3 · 12876 days ago · 10 km deep · 84 km away
11. 2.918 km NE of Hamdibey, TurkeyMon, Jul 8, 2:53 AM GMT+3 · 12872 days ago · 10 km deep · 87 km away
12. 2.69 km NE of Çatalca, TurkeyThu, Jul 11, 5:36 PM GMT+3 · 12869 days ago · 10 km deep · 92 km away
13. 2.62 km ENE of Çatalca, TurkeyThu, Jul 11, 5:55 PM GMT+3 · 12869 days ago · 10 km deep · 85 km away
14. 2.80 km E of Çatalca, TurkeyFri, Jul 12, 5:53 PM GMT+3 · 12868 days ago · 10 km deep · 83 km away
15. 2.98 km SW of Arnavutköy, TurkeyFri, Jul 12, 7:23 PM GMT+3 · 12868 days ago · 10 km deep · 97 km away
16. 2.820 km NNW of Biga, TurkeySat, Jul 13, 1:12 AM GMT+3 · 12867 days ago · 10 km deep · 56 km away
17. 2.90 km SW of Çatalca, TurkeyTue, Jul 16, 5:12 PM GMT+3 · 12864 days ago · 10 km deep · 82 km away
18. 3.221 km SSE of Biga, TurkeyThu, Jul 25, 12:11 PM GMT+3 · 12855 days ago · 10 km deep · 77 km away
19. 2.518 km E of Kumba?, TurkeyFri, Jul 26, 2:36 AM GMT+3 · 12854 days ago · 10 km deep · 15 km away
20. 2.88 km N of Esenyurt, TurkeySun, Jul 28, 12:59 PM GMT+3 · 12852 days ago · 10 km deep · 94 km away

Before

1. 2.611 km N of Marmara, TurkeyWed, Jun 19, 6:27 PM GMT+3 · 12891 days ago · 10 km deep · 11 km away
2. 2.73 km ESE of Çatalca, TurkeyTue, Jun 18, 6:33 PM GMT+3 · 12892 days ago · 10 km deep · 84 km away
3. 2.78 km N of Esenyurt, TurkeyTue, Jun 18, 1:28 PM GMT+3 · 12892 days ago · 10 km deep · 95 km away
4. 2.723 km SSE of Marmara Ere?lisi, TurkeyMon, Jun 17, 10:46 AM GMT+3 · 12893 days ago · 10 km deep · 37 km away
5. 3.34 km WNW of Manyas, TurkeySun, Jun 16, 4:11 AM GMT+3 · 12894 days ago · 13 km deep · 76 km away
6. 3.111 km SSW of Kumba?, TurkeyThu, Jun 13, 5:58 PM GMT+3 · 12897 days ago · 10 km deep · 23 km away
7. 3.019 km WNW of Mudanya, TurkeyThu, Jun 13, 3:40 PM GMT+3 · 12897 days ago · 10 km deep · 91 km away
8. 2.46 km SW of Arnavutköy, TurkeyWed, Jun 5, 1:18 PM GMT+3 · 12905 days ago · 10 km deep · 99 km away
9. 2.416 km SSW of Kumba?, TurkeyTue, Jun 4, 12:12 PM GMT+3 · 12906 days ago · 10 km deep · 24 km away
10. 2.624 km ESE of Kumba?, TurkeyTue, Jun 4, 1:45 AM GMT+3 · 12906 days ago · 10 km deep · 12 km away
11. 3.219 km SSW of Ke?an, TurkeyMon, Jun 3, 2:26 PM GMT+3 · 12907 days ago · 10 km deep · 92 km away
12. 2.55 km ENE of Çatalca, TurkeySun, Jun 2, 11:56 AM GMT+3 · 12908 days ago · 10 km deep · 88 km away
13. 2.69 km N of Band?rma, TurkeyThu, May 30, 6:40 PM GMT+3 · 12911 days ago · 10 km deep · 41 km away
14. 2.61 km SSE of Çatalca, TurkeyWed, May 29, 4:22 PM GMT+3 · 12912 days ago · 10 km deep · 82 km away
15. 2.61 km E of Çatalca, TurkeyTue, May 28, 4:18 PM GMT+3 · 12913 days ago · 10 km deep · 84 km away
16. 2.72 km SSE of Çatalca, TurkeySun, May 26, 6:10 PM GMT+3 · 12915 days ago · 10 km deep · 82 km away
17. 2.524 km ENE of Biga, TurkeySat, May 25, 7:03 PM GMT+3 · 12916 days ago · 10 km deep · 48 km away
18. 2.89 km SSE of Manyas, TurkeySat, May 25, 3:55 PM GMT+3 · 12916 days ago · 10 km deep · 89 km away
19. 2.48 km WNW of Band?rma, TurkeyFri, May 24, 10:55 PM GMT+3 · 12917 days ago · 10 km deep · 43 km away
20. 2.78 km SW of Gönen, TurkeyFri, May 24, 12:04 PM GMT+3 · 12917 days ago · 10 km deep · 74 km away

From the USGS Earthquake Hazards Program and its partner networks, event usp0004t6r. Read Sun, Oct 4, 2026, 9:23 AM UTC.