M1.8 earthquake 80 km E of Adak, Alaska

Magnitude

1.8 (ml), micro

Local time

Tue, Aug 16, 2022, 3:43 PM HADT

UTC

2022-08-17 00:43:54 UTC

Depth

20.9 km (13.0 mi), shallow

Epicenter

52.008° N, 175.486° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.5 km horizontally, 4.8 km in depth

Magnitude uncertainty

±0.25

Depth from

From location

Station coverage gap

342°, poorly surrounded by stations

Stations used

5

After

1. 3.174 km ENE of Adak, AlaskaWed, Aug 17, 12:41 AM HADT · 1505 days ago · 188 km deep · 22 km away
2. 1.779 km SE of Adak, AlaskaWed, Aug 17, 4:45 AM HADT · 1504 days ago · 75 km deep · 71 km away
3. 1.563 km SSE of Adak, AlaskaWed, Aug 17, 7:19 AM HADT · 1504 days ago · 23 km deep · 84 km away
4. 1.529 km SSW of Adak, AlaskaWed, Aug 17, 3:25 PM HADT · 1504 days ago · 64 km deep · 100 km away
5. 1.686 km SW of Atka, AlaskaWed, Aug 17, 4:25 PM HADT · 1504 days ago · 50 km deep · 50 km away
6. 2.661 km ESE of Adak, AlaskaThu, Aug 18, 12:18 AM HADT · 1504 days ago · 61 km deep · 42 km away
7. 2.847 km SSW of Atka, AlaskaThu, Aug 18, 7:13 AM HADT · 1503 days ago · 39 km deep · 69 km away
8. 2.054 km ESE of Adak, AlaskaFri, Aug 19, 8:17 AM HADT · 1502 days ago · 68 km deep · 37 km away
9. 3.249 km S of Atka, AlaskaFri, Aug 19, 6:34 PM HADT · 1502 days ago · 72 km deep · 87 km away
10. 1.644 km SSE of Adak, AlaskaSat, Aug 20, 12:47 PM HADT · 1501 days ago · 27 km deep · 81 km away
11. 2.815 km WSW of Atka, AlaskaSat, Aug 20, 12:50 PM HADT · 1501 days ago · 172 km deep · 75 km away
12. 1.668 km SE of Adak, AlaskaSun, Aug 21, 7:44 AM HADT · 1500 days ago · 19 km deep · 76 km away
13. 1.880 km ENE of Adak, AlaskaSun, Aug 21, 4:04 PM HADT · 1500 days ago · 8 km deep · 5 km away
14. 4.081 km NE of Adak, AlaskaSun, Aug 21, 4:26 PM HADT · 1500 days ago · 218 km deep · 45 km away
15. 1.565 km SE of Adak, AlaskaSun, Aug 21, 6:06 PM HADT · 1500 days ago · 26 km deep · 65 km away
16. 2.537 km NW of Atka, AlaskaSun, Aug 21, 11:40 PM HADT · 1500 days ago · 205 km deep · 81 km away
17. 2.047 km NE of Adak, AlaskaMon, Aug 22, 9:09 AM HADT · 1499 days ago · 136 km deep · 45 km away
18. 3.173 km NE of Adak, AlaskaMon, Aug 22, 10:49 AM HADT · 1499 days ago · 253 km deep · 34 km away
19. 1.830 km SW of Atka, AlaskaMon, Aug 22, 11:15 AM HADT · 1499 days ago · 52 km deep · 69 km away
20. 1.767 km ENE of Adak, AlaskaMon, Aug 22, 3:08 PM HADT · 1499 days ago · 95 km deep · 32 km away
21. 2.050 km E of Adak, AlaskaMon, Aug 22, 7:25 PM HADT · 1499 days ago · 122 km deep · 30 km away
22. 2.346 km NE of Adak, AlaskaTue, Aug 23, 9:34 AM HADT · 1498 days ago · 214 km deep · 42 km away
23. 1.679 km SE of Adak, AlaskaWed, Aug 24, 2:43 AM HADT · 1498 days ago · 19 km deep · 64 km away
24. 1.875 km SW of Atka, AlaskaWed, Aug 24, 6:17 AM HADT · 1497 days ago · 21 km deep · 49 km away
25. 1.655 km SSE of Adak, AlaskaWed, Aug 24, 12:19 PM HADT · 1497 days ago · 24 km deep · 89 km away
26. 1.765 km SE of Adak, AlaskaWed, Aug 24, 4:25 PM HADT · 1497 days ago · 31 km deep · 68 km away
27. 1.573 km SW of Atka, AlaskaWed, Aug 24, 10:39 PM HADT · 1497 days ago · 26 km deep · 46 km away
28. 2.061 km SE of Adak, AlaskaThu, Aug 25, 4:12 AM HADT · 1496 days ago · 23 km deep · 69 km away
29. 2.8Andreanof Islands, Aleutian Islands, AlaskaThu, Aug 25, 4:54 PM HADT · 1496 days ago · 214 km deep · 47 km away
30. 1.541 km SSE of Adak, AlaskaFri, Aug 26, 12:53 AM HADT · 1496 days ago · 31 km deep · 79 km away
31. 1.556 km SE of Adak, AlaskaFri, Aug 26, 6:17 PM HADT · 1495 days ago · 58 km deep · 60 km away
32. 1.652 km S of Adak, AlaskaFri, Aug 26, 7:26 PM HADT · 1495 days ago · 26 km deep · 98 km away
33. 2.824 km SSW of Atka, AlaskaSat, Aug 27, 12:01 AM HADT · 1495 days ago · 110 km deep · 76 km away
34. 1.643 km W of Atka, AlaskaSat, Aug 27, 7:59 AM HADT · 1494 days ago · 18 km deep · 48 km away
35. 1.680 km SW of Atka, AlaskaSat, Aug 27, 9:00 AM HADT · 1494 days ago · 25 km deep · 56 km away
36. 1.787 km SW of Atka, AlaskaSat, Aug 27, 3:28 PM HADT · 1494 days ago · 26 km deep · 54 km away
37. 1.755 km SSW of Atka, AlaskaSat, Aug 27, 6:38 PM HADT · 1494 days ago · 14 km deep · 65 km away
38. 3.044 km SSE of Adak, AlaskaSun, Aug 28, 2:46 AM HADT · 1493 days ago · 39 km deep · 79 km away
39. 1.978 km WNW of Atka, AlaskaSun, Aug 28, 6:26 AM HADT · 1493 days ago · 144 km deep · 46 km away
40. 1.657 km SSE of Adak, AlaskaSun, Aug 28, 7:47 AM HADT · 1493 days ago · 21 km deep · 90 km away
41. 1.760 km SSE of Adak, AlaskaSun, Aug 28, 4:33 PM HADT · 1493 days ago · 5 km deep · 98 km away
42. 1.921 km S of Adak, AlaskaSun, Aug 28, 10:25 PM HADT · 1493 days ago · 61 km deep · 88 km away
43. 1.5Andreanof Islands, Aleutian Islands, AlaskaTue, Aug 30, 7:00 AM HADT · 1491 days ago · 29 km deep · 79 km away
44. 1.654 km SE of Adak, AlaskaTue, Aug 30, 3:29 PM HADT · 1491 days ago · 24 km deep · 70 km away
45. 2.771 km SSE of Adak, AlaskaWed, Aug 31, 5:32 AM HADT · 1490 days ago · 35 km deep · 85 km away
46. 1.8112 km SW of Atka, AlaskaThu, Sep 1, 12:43 AM HADT · 1490 days ago · 26 km deep · 71 km away
47. 4.721 km SSW of Adak, AlaskaThu, Sep 1, 5:45 PM HADT · 1489 days ago · 58 km deep · 95 km away · felt by 3
48. 1.539 km S of Adak, AlaskaThu, Sep 1, 6:07 PM HADT · 1489 days ago · 37 km deep · 95 km away
49. 1.639 km S of Adak, AlaskaThu, Sep 1, 6:25 PM HADT · 1489 days ago · 33 km deep · 97 km away
50. 3.944 km S of Adak, AlaskaThu, Sep 1, 7:52 PM HADT · 1489 days ago · 37 km deep · 99 km away
51. 2.539 km NNE of Adak, AlaskaFri, Sep 2, 11:47 AM HADT · 1488 days ago · 200 km deep · 63 km away
52. 2.150 km S of Atka, AlaskaFri, Sep 2, 6:37 PM HADT · 1488 days ago · 45 km deep · 100 km away
53. 1.7128 km SSW of Atka, AlaskaFri, Sep 2, 11:13 PM HADT · 1488 days ago · 26 km deep · 95 km away
54. 1.662 km SSE of Adak, AlaskaSat, Sep 3, 12:21 AM HADT · 1488 days ago · 17 km deep · 96 km away
55. 1.760 km SE of Adak, AlaskaSat, Sep 3, 7:23 PM HADT · 1487 days ago · 24 km deep · 68 km away
56. 2.968 km SE of Adak, AlaskaSun, Sep 4, 2:39 AM HADT · 1487 days ago · 35 km deep · 78 km away
57. 1.962 km SE of Adak, AlaskaSun, Sep 4, 4:56 AM HADT · 1486 days ago · 22 km deep · 78 km away
58. 1.667 km ESE of Adak, AlaskaSun, Sep 4, 5:40 AM HADT · 1486 days ago · 26 km deep · 48 km away
59. 1.86 km SE of Adak, AlaskaSun, Sep 4, 8:41 PM HADT · 1486 days ago · 91 km deep · 77 km away
60. 1.837 km ENE of Adak, AlaskaMon, Sep 5, 4:20 AM HADT · 1485 days ago · 120 km deep · 44 km away

The first 60 of 159.

Before

1. 2.650 km E of Adak, AlaskaTue, Aug 16, 5:14 AM HADT · 1505 days ago · 133 km deep · 30 km away
2. 2.048 km SSW of Atka, AlaskaTue, Aug 16, 2:03 AM HADT · 1506 days ago · 67 km deep · 67 km away
3. 2.717 km S of Atka, AlaskaTue, Aug 16, 1:10 AM HADT · 1506 days ago · 87 km deep · 89 km away
4. 2.220 km N of Atka, AlaskaMon, Aug 15, 11:51 PM HADT · 1506 days ago · 171 km deep · 97 km away
5. 1.643 km SE of Adak, AlaskaMon, Aug 15, 6:18 PM HADT · 1506 days ago · 52 km deep · 58 km away
6. 1.765 km SSE of Adak, AlaskaMon, Aug 15, 5:59 PM HADT · 1506 days ago · 26 km deep · 82 km away
7. 1.513 km NNW of Adak, AlaskaMon, Aug 15, 9:46 AM HADT · 1506 days ago · 173 km deep · 85 km away
8. 2.9Andreanof Islands, Aleutian Islands, AlaskaSun, Aug 14, 7:11 PM HADT · 1507 days ago · 159 km deep · 33 km away
9. 1.785 km SE of Adak, AlaskaSun, Aug 14, 1:55 PM HADT · 1507 days ago · 25 km deep · 68 km away
10. 1.744 km ENE of Adak, AlaskaSun, Aug 14, 6:01 AM HADT · 1507 days ago · 147 km deep · 37 km away
11. 1.639 km S of Atka, AlaskaSat, Aug 13, 11:08 AM HADT · 1508 days ago · 81 km deep · 86 km away
12. 3.263 km WNW of Atka, AlaskaSat, Aug 13, 8:38 AM HADT · 1508 days ago · 259 km deep · 62 km away
13. 1.544 km W of Atka, AlaskaSat, Aug 13, 2:41 AM HADT · 1509 days ago · 24 km deep · 48 km away
14. 1.593 km SSE of Adak, AlaskaFri, Aug 12, 11:21 PM HADT · 1509 days ago · 16 km deep · 100 km away
15. 1.864 km SE of Adak, AlaskaFri, Aug 12, 7:52 PM HADT · 1509 days ago · 27 km deep · 76 km away
16. 3.168 km SW of Atka, AlaskaFri, Aug 12, 10:54 AM HADT · 1509 days ago · 43 km deep · 51 km away
17. 1.560 km SE of Adak, AlaskaFri, Aug 12, 3:39 AM HADT · 1509 days ago · 26 km deep · 75 km away
18. 2.069 km NE of Adak, AlaskaThu, Aug 11, 7:30 PM HADT · 1510 days ago · 202 km deep · 47 km away
19. 1.639 km E of Adak, AlaskaThu, Aug 11, 7:01 PM HADT · 1510 days ago · 72 km deep · 44 km away
20. 1.912 km WSW of Atka, AlaskaThu, Aug 11, 9:06 AM HADT · 1510 days ago · 153 km deep · 78 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91663721. Read Tue, Sep 29, 2026, 11:14 PM UTC.