M4.2 earthquake 75 km S of Adak, Alaska

Magnitude

4.2 (mb), light

Local time

Thu, Jun 20, 1996, 1:48 AM HADT

UTC

1996-06-20 10:48:46 UTC

Depth

33.0 km (20.5 mi), shallow

Epicenter

51.204° N, 176.842° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

OPERATOR_ASSIGNED

After

1. 4.276 km SSE of Adak, AlaskaThu, Jun 20, 5:41 AM HADT · 11051 days ago · 33 km deep · 30 km away
2. 3.980 km SSE of Adak, AlaskaThu, Jun 20, 5:47 AM HADT · 11051 days ago · 33 km deep · 32 km away
3. 4.1104 km S of Adak, AlaskaThu, Jun 20, 4:09 PM HADT · 11051 days ago · 33 km deep · 39 km away
4. 4.2107 km SW of Adak, AlaskaFri, Jun 21, 12:35 AM HADT · 11051 days ago · 33 km deep · 62 km away
5. 4.0132 km SW of Adak, AlaskaFri, Jun 21, 7:37 AM HADT · 11050 days ago · 33 km deep · 82 km away
6. 4.359 km SW of Adak, AlaskaFri, Jun 21, 9:00 AM HADT · 11050 days ago · 45 km deep · 42 km away
7. 3.956 km S of Adak, AlaskaFri, Jun 21, 11:05 AM HADT · 11050 days ago · 33 km deep · 19 km away
8. 3.690 km SE of Adak, AlaskaFri, Jun 21, 2:28 PM HADT · 11050 days ago · 33 km deep · 68 km away
9. 4.589 km WSW of Adak, AlaskaSat, Jun 22, 12:31 AM HADT · 11050 days ago · 33 km deep · 69 km away
10. 4.3101 km S of Adak, AlaskaSun, Jun 23, 7:09 PM HADT · 11048 days ago · 33 km deep · 42 km away
11. 4.288 km SSW of Adak, AlaskaTue, Jun 25, 2:30 AM HADT · 11046 days ago · 33 km deep · 19 km away
12. 4.644 km SSW of Adak, AlaskaThu, Jun 27, 8:43 AM HADT · 11044 days ago · 33 km deep · 36 km away
13. 4.652 km WSW of Adak, AlaskaFri, Jun 28, 12:27 AM HADT · 11044 days ago · 33 km deep · 58 km away
14. 5.047 km W of Adak, AlaskaSat, Jun 29, 3:52 PM HADT · 11042 days ago · 33 km deep · 80 km away
15. 4.0105 km SW of Adak, AlaskaSun, Jun 30, 2:49 AM HADT · 11041 days ago · 33 km deep · 63 km away
16. 3.992 km S of Adak, AlaskaSun, Jun 30, 5:22 AM HADT · 11041 days ago · 33 km deep · 35 km away
17. 4.0101 km SSW of Adak, AlaskaTue, Jul 2, 3:13 AM HADT · 11039 days ago · 33 km deep · 40 km away
18. 4.549 km SSW of Adak, AlaskaThu, Jul 4, 8:15 PM HADT · 11037 days ago · 33 km deep · 31 km away
19. 4.096 km SW of Adak, AlaskaSun, Jul 7, 4:23 PM HADT · 11034 days ago · 33 km deep · 44 km away
20. 3.9117 km SW of Adak, AlaskaSun, Jul 7, 9:18 PM HADT · 11034 days ago · 33 km deep · 61 km away
21. 3.997 km S of Adak, AlaskaMon, Jul 8, 1:03 PM HADT · 11033 days ago · 33 km deep · 22 km away
22. 4.092 km S of Adak, AlaskaTue, Jul 9, 3:29 AM HADT · 11032 days ago · 33 km deep · 18 km away
23. 3.8101 km S of Adak, AlaskaTue, Jul 9, 3:57 AM HADT · 11032 days ago · 33 km deep · 28 km away
24. 3.690 km SSW of Adak, AlaskaTue, Jul 9, 11:10 AM HADT · 11032 days ago · 33 km deep · 33 km away
25. 4.281 km SSW of Adak, AlaskaTue, Jul 9, 3:04 PM HADT · 11032 days ago · 33 km deep · 14 km away
26. 4.762 km WSW of Adak, AlaskaTue, Jul 9, 6:12 PM HADT · 11032 days ago · 33 km deep · 66 km away
27. 4.290 km WSW of Adak, AlaskaThu, Jul 11, 9:03 PM HADT · 11030 days ago · 33 km deep · 72 km away
28. 4.089 km SW of Adak, AlaskaFri, Jul 12, 5:06 PM HADT · 11029 days ago · 33 km deep · 64 km away
29. 5.2101 km SW of Adak, AlaskaSat, Jul 13, 6:10 AM HADT · 11028 days ago · 33 km deep · 72 km away
30. 3.8101 km S of Adak, AlaskaSun, Jul 14, 8:02 AM HADT · 11027 days ago · 33 km deep · 35 km away
31. 5.187 km S of Adak, AlaskaSun, Jul 14, 8:07 AM HADT · 11027 days ago · 33 km deep · 24 km away
32. 3.995 km S of Adak, AlaskaSun, Jul 14, 10:07 AM HADT · 11027 days ago · 33 km deep · 24 km away
33. 4.074 km SW of Adak, AlaskaMon, Jul 15, 7:36 PM HADT · 11026 days ago · 33 km deep · 55 km away
34. 4.496 km SSW of Adak, AlaskaTue, Jul 16, 5:31 PM HADT · 11025 days ago · 33 km deep · 30 km away
35. 4.382 km S of Adak, AlaskaWed, Jul 17, 11:55 PM HADT · 11024 days ago · 33 km deep · 26 km away
36. 5.181 km WSW of Adak, AlaskaThu, Jul 18, 11:28 PM HADT · 11023 days ago · 33 km deep · 67 km away
37. 4.5121 km SW of Adak, AlaskaTue, Jul 23, 9:11 PM HADT · 11018 days ago · 33 km deep · 84 km away
38. 5.138 km WSW of Adak, AlaskaWed, Jul 24, 2:53 PM HADT · 11017 days ago · 55 km deep · 59 km away
39. 4.157 km SSE of Adak, AlaskaFri, Jul 26, 11:27 AM HADT · 11015 days ago · 33 km deep · 42 km away
40. 4.2Andreanof Islands, Aleutian Islands, AlaskaFri, Jul 26, 1:46 PM HADT · 11015 days ago · 33 km deep · 48 km away
41. 4.1134 km SW of Adak, AlaskaFri, Aug 9, 6:59 PM HADT · 11001 days ago · 33 km deep · 93 km away
42. 4.064 km SSE of Adak, AlaskaSun, Aug 11, 7:40 PM HADT · 10999 days ago · 33 km deep · 37 km away
43. 4.364 km S of Adak, AlaskaFri, Aug 16, 7:51 PM HADT · 10994 days ago · 33 km deep · 19 km away

Before

1. 3.799 km SSW of Adak, AlaskaThu, Jun 20, 12:13 AM HADT · 11052 days ago · 33 km deep · 32 km away
2. 4.883 km WSW of Adak, AlaskaWed, Jun 19, 6:29 AM HADT · 11052 days ago · 33 km deep · 72 km away
3. 4.163 km SSW of Adak, AlaskaWed, Jun 19, 5:30 AM HADT · 11052 days ago · 33 km deep · 12 km away
4. 4.2100 km WSW of Adak, AlaskaWed, Jun 19, 12:23 AM HADT · 11053 days ago · 33 km deep · 76 km away
5. 4.595 km WSW of Adak, AlaskaTue, Jun 18, 11:33 PM HADT · 11053 days ago · 33 km deep · 72 km away
6. 4.191 km WSW of Adak, AlaskaTue, Jun 18, 10:03 AM HADT · 11053 days ago · 33 km deep · 72 km away
7. 3.9131 km SSW of Adak, AlaskaTue, Jun 18, 9:19 AM HADT · 11053 days ago · 33 km deep · 64 km away
8. 4.564 km SW of Adak, AlaskaTue, Jun 18, 7:06 AM HADT · 11053 days ago · 33 km deep · 38 km away
9. 4.292 km S of Adak, AlaskaMon, Jun 17, 10:12 AM HADT · 11054 days ago · 33 km deep · 36 km away
10. 5.1126 km WSW of Adak, AlaskaMon, Jun 17, 7:00 AM HADT · 11054 days ago · 33 km deep · 98 km away
11. 3.8Andreanof Islands, Aleutian Islands, AlaskaSun, Jun 16, 12:15 PM HADT · 11055 days ago · 33 km deep · 32 km away
12. 3.7118 km SSW of Adak, AlaskaSun, Jun 16, 7:37 AM HADT · 11055 days ago · 33 km deep · 47 km away
13. 5.055 km SSW of Adak, AlaskaSun, Jun 16, 6:01 AM HADT · 11055 days ago · 33 km deep · 20 km away
14. 3.772 km SSE of Adak, AlaskaSun, Jun 16, 5:21 AM HADT · 11055 days ago · 33 km deep · 38 km away
15. 4.266 km SSE of Adak, AlaskaSun, Jun 16, 3:46 AM HADT · 11055 days ago · 33 km deep · 39 km away
16. 4.1Andreanof Islands, Aleutian Islands, AlaskaSat, Jun 15, 1:36 PM HADT · 11056 days ago · 33 km deep · 8 km away
17. 3.870 km SSE of Adak, AlaskaSat, Jun 15, 10:31 AM HADT · 11056 days ago · 33 km deep · 37 km away
18. 3.979 km S of Adak, AlaskaSat, Jun 15, 8:15 AM HADT · 11056 days ago · 33 km deep · 25 km away
19. 4.274 km SSE of Adak, AlaskaSat, Jun 15, 6:28 AM HADT · 11056 days ago · 33 km deep · 40 km away
20. 3.873 km SE of Adak, AlaskaSat, Jun 15, 5:52 AM HADT · 11056 days ago · 33 km deep · 58 km away

From the USGS Earthquake Hazards Program and its partner networks, event usp0007k0v. Read Tue, Sep 22, 2026, 10:25 PM UTC.