M1.9 earthquake 139 km SSE of Atka, Alaska

Magnitude

1.9 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Mon, Jul 28, 2025, 1:02 AM HADT

UTC

2025-07-28 10:02:23 UTC

Depth

11.8 km (7.3 mi), shallow

Epicenter

51.040° N, 173.413° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

18

After

1. 3.089 km SE of Atka, AlaskaMon, Jul 28, 1:12 AM HADT · 433 days ago · 32 km deep · 81 km away
2. 1.767 km SE of Atka, AlaskaTue, Jul 29, 4:14 AM HADT · 432 days ago · 15 km deep · 75 km away
3. 2.959 km SSE of Atka, AlaskaSat, Aug 2, 12:48 PM HADT · 428 days ago · 50 km deep · 81 km away
4. 3.788 km SSE of Atka, AlaskaSun, Aug 3, 9:18 AM HADT · 427 days ago · 35 km deep · 55 km away
5. 2.4142 km S of Atka, AlaskaSun, Aug 3, 4:16 PM HADT · 427 days ago · 15 km deep · 41 km away
6. 4.277 km SE of Atka, AlaskaSun, Aug 3, 8:47 PM HADT · 426 days ago · 35 km deep · 68 km away
7. 2.994 km SSE of Atka, AlaskaSun, Aug 3, 10:17 PM HADT · 426 days ago · 35 km deep · 50 km away
8. 2.9189 km SSE of Atka, AlaskaMon, Aug 4, 8:14 AM HADT · 426 days ago · 10 km deep · 51 km away
9. 2.1126 km S of Atka, AlaskaMon, Aug 4, 10:57 PM HADT · 425 days ago · 20 km deep · 37 km away
10. 2.9159 km SSE of Atka, AlaskaTue, Aug 5, 4:15 AM HADT · 425 days ago · 10 km deep · 24 km away
11. 2.7126 km SSE of Atka, AlaskaTue, Aug 5, 9:50 AM HADT · 425 days ago · 16 km deep · 15 km away
12. 1.788 km S of Atka, AlaskaTue, Aug 5, 3:01 PM HADT · 425 days ago · 20 km deep · 76 km away
13. 2.167 km SSE of Atka, AlaskaThu, Aug 7, 12:44 PM HADT · 423 days ago · 19 km deep · 73 km away
14. 2.8177 km SSE of Atka, AlaskaSat, Aug 9, 10:36 AM HADT · 421 days ago · 10 km deep · 38 km away
15. 3.867 km ESE of Atka, AlaskaMon, Aug 11, 1:01 AM HADT · 419 days ago · 35 km deep · 97 km away
16. 1.877 km ESE of Atka, AlaskaThu, Aug 14, 2:50 PM HADT · 416 days ago · 46 km deep · 98 km away
17. 2.5174 km S of Atka, AlaskaFri, Aug 15, 9:56 PM HADT · 414 days ago · 25 km deep · 69 km away
18. 3.871 km SE of Atka, AlaskaSun, Aug 17, 2:26 AM HADT · 413 days ago · 56 km deep · 74 km away
19. 3.267 km SE of Atka, AlaskaSun, Aug 17, 5:30 AM HADT · 413 days ago · 35 km deep · 75 km away
20. 2.962 km SSE of Atka, AlaskaSun, Aug 17, 5:42 AM HADT · 413 days ago · 35 km deep · 79 km away
21. 3.976 km SE of Atka, AlaskaSun, Aug 17, 5:46 AM HADT · 413 days ago · 35 km deep · 72 km away
22. 1.770 km SSE of Atka, AlaskaSun, Aug 17, 12:49 PM HADT · 413 days ago · 3 km deep · 70 km away
23. 2.5164 km SSE of Atka, AlaskaSun, Aug 17, 2:43 PM HADT · 413 days ago · 4 km deep · 29 km away
24. 1.749 km SE of Atka, AlaskaSun, Aug 17, 3:52 PM HADT · 413 days ago · 69 km deep · 98 km away
25. 2.2152 km SSE of Atka, AlaskaSun, Aug 17, 5:10 PM HADT · 413 days ago · 19 km deep · 14 km away
26. 1.8134 km S of Atka, AlaskaSun, Aug 17, 5:35 PM HADT · 413 days ago · 10 km deep · 47 km away
27. 1.873 km SE of Atka, AlaskaSun, Aug 17, 10:34 PM HADT · 412 days ago · 41 km deep · 69 km away
28. 1.888 km SSE of Atka, AlaskaSun, Aug 17, 11:42 PM HADT · 412 days ago · 39 km deep · 55 km away
29. 2.993 km ESE of Atka, AlaskaMon, Aug 18, 3:32 AM HADT · 412 days ago · 10 km deep · 98 km away
30. 2.845 km SSE of Atka, AlaskaMon, Aug 18, 9:28 AM HADT · 412 days ago · 77 km deep · 94 km away
31. 2.4155 km SSE of Atka, AlaskaMon, Aug 18, 7:46 PM HADT · 412 days ago · 5 km deep · 18 km away
32. 3.0228 km SSE of Atka, AlaskaTue, Aug 19, 7:21 AM HADT · 411 days ago · 10 km deep · 91 km away
33. 2.281 km SSE of Atka, AlaskaTue, Aug 19, 5:06 PM HADT · 411 days ago · 17 km deep · 59 km away
34. 1.968 km SSW of Atka, AlaskaFri, Aug 22, 11:56 PM HADT · 407 days ago · 16 km deep · 97 km away
35. 3.865 km SE of Atka, AlaskaSat, Aug 23, 11:15 PM HADT · 406 days ago · 15 km deep · 83 km away
36. 3.788 km S of Atka, AlaskaSat, Aug 30, 1:53 PM HADT · 400 days ago · 35 km deep · 64 km away
37. 4.080 km SSE of Atka, AlaskaSun, Aug 31, 6:47 AM HADT · 399 days ago · 35 km deep · 63 km away
38. 3.066 km S of Atka, AlaskaSun, Aug 31, 6:51 AM HADT · 399 days ago · 24 km deep · 85 km away
39. 4.598 km S of Atka, AlaskaSun, Aug 31, 12:19 PM HADT · 399 days ago · 10 km deep · 48 km away
40. 3.7176 km SSE of Atka, AlaskaSun, Aug 31, 5:25 PM HADT · 399 days ago · 10 km deep · 41 km away
41. 3.1202 km SSE of Atka, AlaskaSun, Aug 31, 5:30 PM HADT · 399 days ago · 10 km deep · 70 km away
42. 3.4108 km SSE of Atka, AlaskaMon, Sep 1, 9:17 AM HADT · 398 days ago · 35 km deep · 40 km away
43. 3.7111 km S of Atka, AlaskaMon, Sep 1, 12:14 PM HADT · 398 days ago · 10 km deep · 45 km away
44. 4.7107 km S of Atka, AlaskaMon, Sep 1, 6:37 PM HADT · 398 days ago · 13 km deep · 44 km away
45. 2.7102 km SSE of Atka, AlaskaTue, Sep 2, 2:51 AM HADT · 397 days ago · 35 km deep · 41 km away
46. 2.5167 km S of Atka, AlaskaTue, Sep 2, 3:56 AM HADT · 397 days ago · 10 km deep · 68 km away
47. 2.7136 km SSE of Atka, AlaskaWed, Sep 3, 6:16 AM HADT · 396 days ago · 20 km deep · 4 km away
48. 4.586 km S of Atka, AlaskaThu, Sep 25, 2:40 AM HADT · 374 days ago · 16 km deep · 80 km away

Before

1. 1.8136 km S of Atka, AlaskaSun, Jul 27, 11:02 PM HADT · 433 days ago · 11 km deep · 32 km away
2. 1.8102 km SSE of Atka, AlaskaSat, Jul 26, 11:03 PM HADT · 434 days ago · 10 km deep · 41 km away
3. 4.273 km SSE of Atka, AlaskaSat, Jul 26, 9:07 PM HADT · 434 days ago · 40 km deep · 67 km away
4. 1.9143 km SSE of Atka, AlaskaFri, Jul 25, 11:16 PM HADT · 435 days ago · 7 km deep · 26 km away
5. 2.569 km SSE of Atka, AlaskaFri, Jul 25, 10:11 PM HADT · 435 days ago · 35 km deep · 71 km away
6. 2.0130 km S of Atka, AlaskaFri, Jul 25, 3:06 AM HADT · 436 days ago · 15 km deep · 52 km away
7. 2.559 km SE of Atka, AlaskaThu, Jul 24, 2:34 PM HADT · 437 days ago · 10 km deep · 89 km away
8. 2.066 km SE of Atka, AlaskaMon, Jul 21, 9:26 PM HADT · 439 days ago · 20 km deep · 90 km away
9. 3.069 km SE of Atka, AlaskaFri, Jul 18, 3:14 AM HADT · 443 days ago · 60 km deep · 85 km away
10. 2.668 km ESE of Atka, AlaskaWed, Jul 16, 2:30 PM HADT · 445 days ago · 35 km deep · 98 km away
11. 2.265 km SE of Atka, AlaskaWed, Jul 16, 8:02 AM HADT · 445 days ago · 16 km deep · 83 km away
12. 1.9104 km SSW of Atka, AlaskaMon, Jul 14, 6:14 AM HADT · 447 days ago · 21 km deep · 96 km away
13. 3.088 km SSE of Atka, AlaskaSun, Jul 13, 9:33 AM HADT · 448 days ago · 35 km deep · 54 km away
14. 2.055 km SE of Atka, AlaskaSat, Jul 12, 3:33 PM HADT · 449 days ago · 57 km deep · 86 km away
15. 2.6126 km S of Atka, AlaskaSat, Jul 12, 2:59 PM HADT · 449 days ago · 10 km deep · 41 km away
16. 3.5206 km SSE of Atka, AlaskaSat, Jul 12, 7:29 AM HADT · 449 days ago · 10 km deep · 66 km away
17. 1.966 km SSE of Atka, AlaskaSat, Jul 12, 1:59 AM HADT · 449 days ago · 1 km deep · 74 km away
18. 2.853 km SE of Atka, AlaskaFri, Jul 11, 8:04 PM HADT · 450 days ago · 9 km deep · 97 km away
19. 2.0162 km S of Atka, AlaskaThu, Jul 10, 8:45 AM HADT · 451 days ago · 23 km deep · 50 km away
20. 2.743 km SSE of Atka, AlaskaThu, Jul 10, 5:24 AM HADT · 451 days ago · 188 km deep · 97 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0259ltachf. Read Sun, Oct 4, 2026, 4:56 PM UTC.