M4.0 earthquake 147 km WSW of Adak, Alaska

Magnitude

4.0 (mb), light

Local time

Thu, Jun 20, 1996, 11:14 AM HADT

UTC

1996-06-20 20:14:14 UTC

Depth

33.0 km (20.5 mi), shallow

Epicenter

51.502° N, 178.688° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

OPERATOR_ASSIGNED

After

1. 4.2107 km SW of Adak, AlaskaFri, Jun 21, 12:35 AM HADT · 11051 days ago · 33 km deep · 74 km away
2. 4.0132 km SW of Adak, AlaskaFri, Jun 21, 7:37 AM HADT · 11050 days ago · 33 km deep · 71 km away
3. 4.589 km WSW of Adak, AlaskaSat, Jun 22, 12:31 AM HADT · 11050 days ago · 33 km deep · 65 km away
4. 4.3147 km WSW of Adak, AlaskaSun, Jun 23, 10:26 PM HADT · 11048 days ago · 33 km deep · 18 km away
5. 3.9139 km WSW of Adak, AlaskaWed, Jun 26, 4:37 AM HADT · 11045 days ago · 33 km deep · 9 km away
6. 4.652 km WSW of Adak, AlaskaFri, Jun 28, 12:27 AM HADT · 11044 days ago · 33 km deep · 97 km away
7. 4.0105 km SW of Adak, AlaskaSun, Jun 30, 2:49 AM HADT · 11041 days ago · 33 km deep · 73 km away
8. 4.096 km SW of Adak, AlaskaSun, Jul 7, 4:23 PM HADT · 11034 days ago · 33 km deep · 92 km away
9. 4.0202 km SW of Adak, AlaskaSun, Jul 7, 5:32 PM HADT · 11034 days ago · 33 km deep · 80 km away
10. 3.9117 km SW of Adak, AlaskaSun, Jul 7, 9:18 PM HADT · 11034 days ago · 33 km deep · 86 km away
11. 4.762 km WSW of Adak, AlaskaTue, Jul 9, 6:12 PM HADT · 11032 days ago · 33 km deep · 86 km away
12. 4.290 km WSW of Adak, AlaskaThu, Jul 11, 9:03 PM HADT · 11030 days ago · 33 km deep · 63 km away
13. 4.089 km SW of Adak, AlaskaFri, Jul 12, 5:06 PM HADT · 11029 days ago · 33 km deep · 70 km away
14. 5.2101 km SW of Adak, AlaskaSat, Jul 13, 6:10 AM HADT · 11028 days ago · 33 km deep · 60 km away
15. 4.3171 km WSW of Adak, AlaskaMon, Jul 15, 5:10 AM HADT · 11026 days ago · 33 km deep · 37 km away
16. 4.074 km SW of Adak, AlaskaMon, Jul 15, 7:36 PM HADT · 11026 days ago · 33 km deep · 82 km away
17. 5.181 km WSW of Adak, AlaskaThu, Jul 18, 11:28 PM HADT · 11023 days ago · 33 km deep · 71 km away
18. 4.7133 km WSW of Adak, AlaskaSat, Jul 20, 9:02 PM HADT · 11021 days ago · 33 km deep · 37 km away
19. 3.8182 km W of Adak, AlaskaSun, Jul 21, 8:31 PM HADT · 11020 days ago · 33 km deep · 49 km away
20. 4.291 km W of Adak, AlaskaSun, Jul 21, 8:38 PM HADT · 11020 days ago · 33 km deep · 61 km away
21. 3.7206 km WSW of Adak, AlaskaSun, Jul 21, 9:41 PM HADT · 11020 days ago · 33 km deep · 58 km away
22. 4.5121 km SW of Adak, AlaskaTue, Jul 23, 9:11 PM HADT · 11018 days ago · 33 km deep · 53 km away
23. 4.5197 km WSW of Adak, AlaskaFri, Jul 26, 9:15 AM HADT · 11015 days ago · 33 km deep · 56 km away
24. 3.7145 km WSW of Adak, AlaskaFri, Aug 9, 2:24 AM HADT · 11001 days ago · 33 km deep · 5 km away
25. 4.0145 km WSW of Adak, AlaskaFri, Aug 9, 4:12 AM HADT · 11001 days ago · 33 km deep · 6 km away
26. 4.1134 km SW of Adak, AlaskaFri, Aug 9, 6:59 PM HADT · 11001 days ago · 33 km deep · 53 km away
27. 4.2138 km WSW of Adak, AlaskaMon, Aug 12, 10:13 AM HADT · 10998 days ago · 33 km deep · 37 km away
28. 6.0Andreanof Islands, Aleutian Islands, AlaskaSun, Aug 18, 7:19 PM HADT · 10992 days ago · 33 km deep · 23 km away

Before

1. 4.2173 km W of Adak, AlaskaThu, Jun 20, 5:41 AM HADT · 11051 days ago · 33 km deep · 62 km away
2. 4.883 km WSW of Adak, AlaskaWed, Jun 19, 6:29 AM HADT · 11052 days ago · 33 km deep · 67 km away
3. 4.4135 km WSW of Adak, AlaskaWed, Jun 19, 5:20 AM HADT · 11052 days ago · 33 km deep · 43 km away
4. 4.2100 km WSW of Adak, AlaskaWed, Jun 19, 12:23 AM HADT · 11053 days ago · 33 km deep · 57 km away
5. 4.595 km WSW of Adak, AlaskaTue, Jun 18, 11:33 PM HADT · 11053 days ago · 33 km deep · 61 km away
6. 4.191 km WSW of Adak, AlaskaTue, Jun 18, 10:03 AM HADT · 11053 days ago · 33 km deep · 63 km away
7. 5.1126 km WSW of Adak, AlaskaMon, Jun 17, 7:00 AM HADT · 11054 days ago · 33 km deep · 37 km away
8. 3.7157 km WSW of Adak, AlaskaSun, Jun 16, 4:19 PM HADT · 11055 days ago · 10 km deep · 9 km away
9. 5.3131 km WSW of Adak, AlaskaSun, Jun 16, 10:31 AM HADT · 11055 days ago · 30 km deep · 17 km away
10. 3.9118 km WSW of Adak, AlaskaSun, Jun 16, 3:11 AM HADT · 11055 days ago · 33 km deep · 32 km away
11. 3.899 km W of Adak, AlaskaSun, Jun 16, 1:34 AM HADT · 11055 days ago · 33 km deep · 51 km away
12. 4.4155 km WSW of Adak, AlaskaSat, Jun 15, 6:00 AM HADT · 11056 days ago · 33 km deep · 22 km away
13. 4.276 km SW of Adak, AlaskaSat, Jun 15, 5:44 AM HADT · 11056 days ago · 33 km deep · 91 km away
14. 3.9203 km SW of Adak, AlaskaSat, Jun 15, 3:42 AM HADT · 11056 days ago · 33 km deep · 91 km away
15. 4.7120 km WSW of Adak, AlaskaThu, Jun 13, 11:18 PM HADT · 11058 days ago · 34 km deep · 27 km away
16. 3.983 km SW of Adak, AlaskaThu, Jun 13, 10:28 PM HADT · 11058 days ago · 33 km deep · 74 km away
17. 4.1138 km WSW of Adak, AlaskaThu, Jun 13, 2:34 PM HADT · 11058 days ago · 33 km deep · 10 km away
18. 4.5104 km WSW of Adak, AlaskaThu, Jun 13, 10:49 AM HADT · 11058 days ago · 33 km deep · 52 km away
19. 4.2103 km SW of Adak, AlaskaThu, Jun 13, 9:35 AM HADT · 11058 days ago · 33 km deep · 84 km away
20. 3.8107 km WSW of Adak, AlaskaThu, Jun 13, 8:57 AM HADT · 11058 days ago · 33 km deep · 45 km away

From the USGS Earthquake Hazards Program and its partner networks, event usp0007k1f. Read Tue, Sep 22, 2026, 9:40 PM UTC.