M3.4 earthquake 9 km SSW of Mesolóngi, Greece

Magnitude

3.4 (Md, duration), minor

Magnitude from

USGS National Earthquake Information Center

Local time

Tue, Apr 20, 2004, 8:34 AM GMT+3

UTC

2004-04-20 05:34:56 UTC

Depth

7.0 km (4.3 mi), shallow

Epicenter

38.290° N, 21.410° E

Region

Greece

Tsunami flag

No

Status

Reviewed by a seismologist

From the USGS event page for usp000csyy. U.S. Geological Survey text and figures are in the public domain.

Station coverage gap

126°

Stations used

5

• Pátra, GreecePopulation 168,034. Forecast29 kmW
• İzmir, TurkeyPopulation 2,938,292. Forecast500 kmW

After

1. 3.38 km NW of Kamárai, GreeceWed, Apr 21, 11:25 AM GMT+3 · 8202 days ago · 10 km deep · 47 km away
2. 3.78 km S of Mataránga, GreeceWed, Apr 21, 1:38 PM GMT+3 · 8202 days ago · 14 km deep · 19 km away
3. 3.34 km WSW of Panaitólion, GreeceWed, Apr 21, 7:16 PM GMT+3 · 8201 days ago · 25 km deep · 30 km away
4. 3.44 km SW of Vartholomió, GreeceSat, Apr 24, 9:27 AM GMT+3 · 8199 days ago · 24 km deep · 55 km away
5. 3.111 km SSE of Galaxídhion, GreeceSun, Apr 25, 5:54 AM GMT+3 · 8198 days ago · 27 km deep · 88 km away
6. 4.22 km NE of Aktaío, GreeceWed, Apr 28, 10:26 AM GMT+3 · 8195 days ago · 15 km deep · 36 km away
7. 3.00 km W of Antirrio, GreeceWed, Apr 28, 10:38 AM GMT+3 · 8195 days ago · 5 km deep · 31 km away
8. 2.94 km SW of Kréstena, GreeceWed, Apr 28, 4:25 PM GMT+3 · 8195 days ago · 21 km deep · 83 km away
9. 3.25 km ESE of Spercheiáda, GreeceWed, Apr 28, 5:51 PM GMT+3 · 8195 days ago · 14 km deep · 95 km away
10. 3.324 km SW of Epitálio, GreeceWed, Apr 28, 9:07 PM GMT+3 · 8194 days ago · 16 km deep · 93 km away
11. 3.13 km N of Pelópi, GreeceThu, Apr 29, 12:13 AM GMT+3 · 8194 days ago · 27 km deep · 67 km away
12. 2.77 km W of Galaxídhion, GreeceFri, Apr 30, 4:28 AM GMT+3 · 8193 days ago · 45 km deep · 77 km away
13. 3.316 km NW of Manoláda, GreeceSat, May 1, 8:48 AM GMT+3 · 8192 days ago · 18 km deep · 25 km away
14. 2.92 km WSW of Náfpaktos, GreeceSun, May 2, 12:50 AM GMT+3 · 8191 days ago · 25 km deep · 35 km away
15. 3.27 km SW of Póros, GreeceSun, May 2, 9:12 PM GMT+3 · 8190 days ago · 5 km deep · 64 km away
16. 3.12 km SSW of Amfilochía, GreeceMon, May 3, 7:11 AM GMT+3 · 8190 days ago · 5 km deep · 65 km away
17. 3.410 km S of Valsamáta, GreeceFri, May 7, 4:55 AM GMT+3 · 8186 days ago · 5 km deep · 78 km away
18. 3.12 km NNE of Sardínia, GreeceTue, May 11, 6:42 AM GMT+3 · 8182 days ago · 4 km deep · 71 km away
19. 3.42 km S of Vónitsa, GreeceTue, May 11, 7:06 AM GMT+3 · 8182 days ago · 10 km deep · 81 km away
20. 3.53 km WNW of Sardínia, GreeceTue, May 11, 7:22 AM GMT+3 · 8182 days ago · 19 km deep · 71 km away
21. 3.622 km NW of Itháki, GreeceTue, May 11, 10:40 AM GMT+3 · 8182 days ago · 5 km deep · 80 km away
22. 3.84 km SW of Póros, GreeceWed, May 12, 11:34 PM GMT+3 · 8180 days ago · 14 km deep · 62 km away
23. 3.319 km SSW of Lefkáda, GreeceThu, May 13, 4:10 PM GMT+3 · 8180 days ago · 5 km deep · 82 km away
24. 3.36 km S of Argostólion, GreeceFri, May 14, 4:43 PM GMT+3 · 8179 days ago · 5 km deep · 83 km away
25. 3.14 km NE of Aígio, GreeceMon, May 17, 12:27 PM GMT+3 · 8176 days ago · 14 km deep · 61 km away
26. 3.210 km N of Kamárai, GreeceTue, May 18, 4:21 AM GMT+3 · 8175 days ago · 13 km deep · 53 km away
27. 3.716 km WNW of Katastárion, GreeceThu, May 20, 8:59 AM GMT+3 · 8173 days ago · 14 km deep · 86 km away
28. 3.410 km W of Katastárion, GreeceThu, May 20, 12:11 PM GMT+3 · 8173 days ago · 2 km deep · 85 km away
29. 3.39 km SE of Spercheiáda, GreeceThu, May 20, 2:36 PM GMT+3 · 8173 days ago · 3 km deep · 91 km away
30. 3.515 km NW of Katastárion, GreeceFri, May 21, 3:55 AM GMT+3 · 8172 days ago · 5 km deep · 80 km away
31. 3.413 km W of Katastárion, GreeceFri, May 21, 5:24 AM GMT+3 · 8172 days ago · 5 km deep · 87 km away
32. 4.37 km NNW of Katastárion, GreeceFri, May 21, 5:26 AM GMT+3 · 8172 days ago · 7 km deep · 73 km away
33. 3.213 km NNW of Katastárion, GreeceFri, May 21, 8:31 AM GMT+3 · 8172 days ago · 22 km deep · 74 km away
34. 3.56 km NNW of Katastárion, GreeceFri, May 21, 8:57 AM GMT+3 · 8172 days ago · 5 km deep · 76 km away
35. 3.18 km NW of Katastárion, GreeceFri, May 21, 12:09 PM GMT+3 · 8172 days ago · 13 km deep · 77 km away
36. 3.57 km WNW of Katastárion, GreeceFri, May 21, 9:20 PM GMT+3 · 8171 days ago · 15 km deep · 80 km away
37. 3.02 km S of Stános, GreeceSat, May 22, 4:01 AM GMT+3 · 8171 days ago · 18 km deep · 58 km away
38. 3.211 km NW of Katastárion, GreeceSat, May 22, 4:51 AM GMT+3 · 8171 days ago · 25 km deep · 77 km away
39. 3.14 km SE of Pálairos, GreeceSat, May 22, 7:53 AM GMT+3 · 8171 days ago · 24 km deep · 67 km away
40. 3.214 km NW of Itháki, GreeceSat, May 22, 10:03 PM GMT+3 · 8170 days ago · 21 km deep · 73 km away
41. 3.512 km N of Katastárion, GreeceSun, May 23, 7:22 PM GMT+3 · 8169 days ago · 14 km deep · 69 km away
42. 3.37 km NNW of Katastárion, GreeceSun, May 23, 7:25 PM GMT+3 · 8169 days ago · 15 km deep · 76 km away
43. 3.812 km WSW of Galaxídhion, GreeceMon, May 24, 3:03 AM GMT+3 · 8169 days ago · 24 km deep · 73 km away
44. 3.07 km ENE of Spercheiáda, GreeceWed, May 26, 3:43 PM GMT+3 · 8167 days ago · 4 km deep · 100 km away
45. 3.513 km SSW of Kardamás, GreeceFri, May 28, 7:30 PM GMT+3 · 8164 days ago · 5 km deep · 71 km away
46. 3.37 km ENE of Thérmo, GreeceSat, May 29, 7:04 AM GMT+3 · 8164 days ago · 19 km deep · 45 km away
47. 3.210 km SSW of Póros, GreeceSat, May 29, 10:05 PM GMT+3 · 8163 days ago · 5 km deep · 64 km away
48. 3.69 km NE of Katastárion, GreeceSun, May 30, 5:03 AM GMT+3 · 8163 days ago · 5 km deep · 67 km away
49. 3.114 km NW of Makrakómi, GreeceSun, May 30, 6:26 AM GMT+3 · 8163 days ago · 9 km deep · 98 km away
50. 3.45 km WNW of Katastárion, GreeceSun, May 30, 1:53 PM GMT+3 · 8163 days ago · 9 km deep · 79 km away
51. 3.626 km SSE of Lithakiá, GreeceSun, May 30, 5:32 PM GMT+3 · 8163 days ago · 18 km deep · 97 km away
52. 4.511 km NNW of Katastárion, GreeceMon, May 31, 12:23 AM GMT+3 · 8162 days ago · 18 km deep · 72 km away
53. 3.89 km NNW of Katastárion, GreeceMon, May 31, 12:35 AM GMT+3 · 8162 days ago · 12 km deep · 73 km away
54. 4.48 km NW of Katastárion, GreeceMon, May 31, 12:44 AM GMT+3 · 8162 days ago · 16 km deep · 77 km away
55. 3.27 km NNW of Katastárion, GreeceMon, May 31, 4:30 AM GMT+3 · 8162 days ago · 4 km deep · 75 km away
56. 3.37 km W of Katastárion, GreeceMon, May 31, 6:06 AM GMT+3 · 8162 days ago · 4 km deep · 83 km away
57. 3.56 km WSW of Katastárion, GreeceMon, May 31, 9:18 AM GMT+3 · 8162 days ago · 5 km deep · 83 km away
58. 3.421 km WNW of Katastárion, GreeceMon, May 31, 1:03 PM GMT+3 · 8162 days ago · 5 km deep · 90 km away
59. 3.210 km WNW of Itháki, GreeceTue, Jun 1, 12:00 AM GMT+3 · 8161 days ago · 16 km deep · 72 km away
60. 3.39 km WSW of Kardamás, GreeceTue, Jun 1, 12:46 AM GMT+3 · 8161 days ago · 16 km deep · 65 km away

The first 60 of 82.

Before

1. 3.23 km NNW of Lepenoú, GreeceMon, Apr 19, 10:19 PM GMT+3 · 8203 days ago · 13 km deep · 51 km away
2. 3.520 km SW of Lefkáda, GreeceSat, Apr 17, 12:30 PM GMT+3 · 8206 days ago · 15 km deep · 86 km away
3. 3.28 km E of Náfpaktos, GreeceThu, Apr 15, 3:17 AM GMT+3 · 8208 days ago · 16 km deep · 46 km away
4. 3.522 km SSW of Lefkáda, GreeceWed, Apr 14, 11:08 PM GMT+3 · 8208 days ago · 5 km deep · 85 km away
5. 3.08 km SSW of Rododáfni, GreeceMon, Apr 12, 4:04 PM GMT+3 · 8211 days ago · 12 km deep · 52 km away
6. 3.729 km NW of Itháki, GreeceFri, Apr 9, 12:35 PM GMT+3 · 8214 days ago · 5 km deep · 84 km away
7. 3.20 km ENE of Lepenoú, GreeceWed, Mar 31, 2:23 PM GMT+3 · 8223 days ago · 5 km deep · 48 km away
8. 3.219 km SE of Lithakiá, GreeceMon, Mar 29, 12:37 PM GMT+3 · 8225 days ago · 5 km deep · 85 km away
9. 3.320 km SW of Lefkáda, GreeceMon, Mar 22, 3:10 PM GMT+2 · 8232 days ago · 23 km deep · 85 km away
10. 3.18 km NNE of Témeni, GreeceMon, Mar 22, 5:09 AM GMT+2 · 8232 days ago · 5 km deep · 65 km away
11. 3.02 km ENE of Káto Acha?a, GreeceMon, Mar 22, 12:40 AM GMT+2 · 8232 days ago · 5 km deep · 21 km away

From the USGS Earthquake Hazards Program and its partner networks, event usp000csyy. Read Mon, Oct 5, 2026, 3:10 AM UTC.