M1.8 earthquake 85 km W of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Fri, Jan 31, 2020, 2:13 AM HAST

UTC

2020-01-31 12:13:57 UTC

Depth

0.3 km (0.2 mi), shallow

Epicenter

51.883° N, 177.881° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.2 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.34

Depth from

Operator assigned

Station coverage gap

168°

Stations used

6

After

1. 3.890 km W of Adak, AlaskaFri, Jan 31, 3:32 AM HAST · 2436 days ago · 10 km deep · 8 km away
2. 1.786 km W of Adak, AlaskaFri, Jan 31, 3:50 AM HAST · 2436 days ago · 5 km deep · 5 km away
3. 1.5Andreanof Islands, Aleutian Islands, AlaskaFri, Jan 31, 4:18 AM HAST · 2436 days ago · 3 km deep · 4 km away
4. 1.788 km W of Adak, AlaskaFri, Jan 31, 4:30 AM HAST · 2436 days ago · 5 km deep · 5 km away
5. 1.879 km W of Adak, AlaskaFri, Jan 31, 5:08 AM HAST · 2436 days ago · 5 km deep · 9 km away
6. 1.679 km W of Adak, AlaskaFri, Jan 31, 10:51 AM HAST · 2435 days ago · 8 km deep · 8 km away
7. 2.377 km W of Adak, AlaskaFri, Jan 31, 11:45 AM HAST · 2435 days ago · 5 km deep · 10 km away
8. 1.978 km W of Adak, AlaskaFri, Jan 31, 12:15 PM HAST · 2435 days ago · 9 km deep · 9 km away
9. 1.7128 km WSW of Adak, AlaskaFri, Jan 31, 12:54 PM HAST · 2435 days ago · 13 km deep · 48 km away
10. 1.978 km W of Adak, AlaskaFri, Jan 31, 1:01 PM HAST · 2435 days ago · 4 km deep · 10 km away
11. 1.943 km S of Adak, AlaskaFri, Jan 31, 1:37 PM HAST · 2435 days ago · 25 km deep · 93 km away
12. 1.689 km W of Adak, AlaskaFri, Jan 31, 2:21 PM HAST · 2435 days ago · 4 km deep · 5 km away
13. 1.773 km W of Adak, AlaskaFri, Jan 31, 3:29 PM HAST · 2435 days ago · 3 km deep · 13 km away
14. 1.684 km W of Adak, AlaskaFri, Jan 31, 8:27 PM HAST · 2435 days ago · 5 km deep · 4 km away
15. 1.879 km W of Adak, AlaskaFri, Jan 31, 10:30 PM HAST · 2435 days ago · 10 km deep · 10 km away
16. 1.5Andreanof Islands, Aleutian Islands, AlaskaFri, Jan 31, 11:19 PM HAST · 2435 days ago · 4 km deep · 11 km away
17. 2.3137 km WSW of Adak, AlaskaSat, Feb 1, 12:20 AM HAST · 2435 days ago · 7 km deep · 56 km away
18. 2.094 km W of Adak, AlaskaSat, Feb 1, 12:41 AM HAST · 2435 days ago · 3 km deep · 9 km away
19. 2.3Andreanof Islands, Aleutian Islands, AlaskaSat, Feb 1, 11:38 AM HAST · 2434 days ago · 3 km deep · 9 km away
20. 2.183 km W of Adak, AlaskaSat, Feb 1, 6:00 PM HAST · 2434 days ago · 5 km deep · 4 km away
21. 2.2126 km WSW of Adak, AlaskaSat, Feb 1, 11:02 PM HAST · 2434 days ago · 25 km deep · 65 km away
22. 2.6163 km WSW of Adak, AKSat, Feb 1, 11:50 PM HAST · 2434 days ago · 35 km deep · 86 km away
23. 2.423 km S of Adak, AlaskaSun, Feb 2, 2:09 AM HAST · 2434 days ago · 60 km deep · 92 km away
24. 1.981 km W of Adak, AlaskaSun, Feb 2, 4:07 PM HAST · 2433 days ago · 5 km deep · 9 km away
25. 2.7133 km WSW of Adak, AlaskaSun, Feb 2, 6:21 PM HAST · 2433 days ago · 28 km deep · 75 km away
26. 2.079 km W of Adak, AlaskaSun, Feb 2, 8:54 PM HAST · 2433 days ago · 8 km deep · 7 km away
27. 2.1128 km SW of Adak, AlaskaSun, Feb 2, 11:52 PM HAST · 2433 days ago · 26 km deep · 77 km away
28. 2.0128 km WSW of Adak, AlaskaMon, Feb 3, 5:11 AM HAST · 2433 days ago · 7 km deep · 49 km away
29. 2.079 km W of Adak, AlaskaMon, Feb 3, 5:29 AM HAST · 2433 days ago · 7 km deep · 6 km away
30. 2.184 km W of Adak, AlaskaMon, Feb 3, 2:04 PM HAST · 2432 days ago · 4 km deep · 3 km away
31. 1.687 km W of Adak, AlaskaMon, Feb 3, 5:21 PM HAST · 2432 days ago · 10 km deep · 4 km away
32. 2.184 km W of Adak, AlaskaMon, Feb 3, 6:03 PM HAST · 2432 days ago · 5 km deep · 5 km away
33. 1.576 km W of Adak, AlaskaMon, Feb 3, 7:11 PM HAST · 2432 days ago · 5 km deep · 11 km away
34. 1.9136 km WSW of Adak, AlaskaMon, Feb 3, 9:15 PM HAST · 2432 days ago · 7 km deep · 56 km away
35. 2.6149 km SW of Adak, AlaskaMon, Feb 3, 10:02 PM HAST · 2432 days ago · 10 km deep · 98 km away
36. 1.988 km W of Adak, AlaskaTue, Feb 4, 10:56 AM HAST · 2431 days ago · 5 km deep · 5 km away
37. 2.389 km W of Adak, AlaskaTue, Feb 4, 11:35 AM HAST · 2431 days ago · 6 km deep · 5 km away
38. 2.0118 km WSW of Adak, AlaskaTue, Feb 4, 8:26 PM HAST · 2431 days ago · 33 km deep · 61 km away
39. 2.080 km W of Adak, AlaskaTue, Feb 4, 9:26 PM HAST · 2431 days ago · 12 km deep · 9 km away
40. 1.982 km W of Adak, AlaskaTue, Feb 4, 11:57 PM HAST · 2431 days ago · 11 km deep · 6 km away
41. 1.578 km W of Adak, AlaskaWed, Feb 5, 1:26 AM HAST · 2431 days ago · 9 km deep · 11 km away
42. 2.0118 km WSW of Adak, AlaskaWed, Feb 5, 5:19 AM HAST · 2431 days ago · 13 km deep · 50 km away
43. 1.878 km W of Adak, AlaskaWed, Feb 5, 6:05 AM HAST · 2431 days ago · 9 km deep · 9 km away
44. 2.379 km W of Adak, AlaskaWed, Feb 5, 7:12 AM HAST · 2431 days ago · 2 km deep · 8 km away
45. 1.680 km W of Adak, AlaskaWed, Feb 5, 1:27 PM HAST · 2430 days ago · 13 km deep · 8 km away
46. 1.777 km W of Adak, AlaskaWed, Feb 5, 1:32 PM HAST · 2430 days ago · 7 km deep · 10 km away
47. 3.0126 km WSW of Adak, AlaskaWed, Feb 5, 2:02 PM HAST · 2430 days ago · 10 km deep · 54 km away
48. 1.879 km W of Adak, AlaskaWed, Feb 5, 6:36 PM HAST · 2430 days ago · 10 km deep · 8 km away
49. 2.774 km W of Adak, AlaskaWed, Feb 5, 10:03 PM HAST · 2430 days ago · 10 km deep · 13 km away
50. 3.078 km W of Adak, AlaskaWed, Feb 5, 10:06 PM HAST · 2430 days ago · 8 km deep · 8 km away
51. 2.091 km W of Adak, AlaskaWed, Feb 5, 11:50 PM HAST · 2430 days ago · 5 km deep · 7 km away
52. 1.884 km W of Adak, AlaskaThu, Feb 6, 7:39 AM HAST · 2430 days ago · 6 km deep · 3 km away
53. 1.743 km S of Adak, AlaskaThu, Feb 6, 11:04 AM HAST · 2429 days ago · 28 km deep · 99 km away
54. 1.790 km WSW of Adak, AlaskaThu, Feb 6, 2:51 PM HAST · 2429 days ago · 23 km deep · 47 km away
55. 2.1134 km SW of Adak, AlaskaThu, Feb 6, 6:15 PM HAST · 2429 days ago · 16 km deep · 87 km away
56. 1.680 km W of Adak, AlaskaThu, Feb 6, 7:24 PM HAST · 2429 days ago · 13 km deep · 6 km away
57. 2.389 km W of Adak, AlaskaFri, Feb 7, 4:29 AM HAST · 2429 days ago · 7 km deep · 4 km away
58. 3.159 km S of Adak, AlaskaFri, Feb 7, 4:36 AM HAST · 2429 days ago · 35 km deep · 97 km away
59. 2.0125 km WSW of Adak, AlaskaFri, Feb 7, 10:59 AM HAST · 2428 days ago · 7 km deep · 48 km away
60. 1.981 km W of Adak, AlaskaFri, Feb 7, 1:10 PM HAST · 2428 days ago · 7 km deep · 5 km away

The first 60 of at least 200.

Before

1. 2.189 km W of Adak, AlaskaFri, Jan 31, 2:13 AM HAST · 2436 days ago · 4 km deep · 5 km away
2. 1.689 km W of Adak, AlaskaFri, Jan 31, 2:10 AM HAST · 2436 days ago · 3 km deep · 5 km away
3. 1.689 km W of Adak, AlaskaFri, Jan 31, 1:07 AM HAST · 2436 days ago · 4 km deep · 6 km away
4. 2.390 km W of Adak, AlaskaFri, Jan 31, 12:56 AM HAST · 2436 days ago · 4 km deep · 6 km away
5. 2.389 km W of Adak, AlaskaFri, Jan 31, 12:54 AM HAST · 2436 days ago · 4 km deep · 6 km away
6. 2.890 km W of Adak, AlaskaFri, Jan 31, 12:51 AM HAST · 2436 days ago · 10 km deep · 6 km away
7. 1.789 km W of Adak, AlaskaFri, Jan 31, 12:45 AM HAST · 2436 days ago · 7 km deep · 6 km away
8. 1.679 km W of Adak, AlaskaFri, Jan 31, 12:22 AM HAST · 2436 days ago · 5 km deep · 6 km away
9. 1.990 km W of Adak, AlaskaThu, Jan 30, 11:00 PM HAST · 2436 days ago · 5 km deep · 6 km away
10. 1.589 km W of Adak, AlaskaThu, Jan 30, 10:49 PM HAST · 2436 days ago · 0 km deep · 4 km away
11. 1.689 km W of Adak, AlaskaThu, Jan 30, 10:40 PM HAST · 2436 days ago · 4 km deep · 5 km away
12. 3.189 km W of Adak, AlaskaThu, Jan 30, 10:35 PM HAST · 2436 days ago · 6 km deep · 4 km away
13. 2.188 km W of Adak, AlaskaThu, Jan 30, 10:30 PM HAST · 2436 days ago · 3 km deep · 5 km away
14. 2.189 km W of Adak, AlaskaThu, Jan 30, 9:51 PM HAST · 2436 days ago · 5 km deep · 6 km away
15. 1.879 km W of Adak, AlaskaThu, Jan 30, 8:58 PM HAST · 2436 days ago · 8 km deep · 8 km away
16. 2.887 km W of Adak, AlaskaThu, Jan 30, 6:33 PM HAST · 2436 days ago · 10 km deep · 7 km away
17. 1.786 km W of Adak, AlaskaThu, Jan 30, 6:23 PM HAST · 2436 days ago · 5 km deep · 4 km away
18. 1.681 km W of Adak, AlaskaThu, Jan 30, 6:14 PM HAST · 2436 days ago · 9 km deep · 10 km away
19. 1.878 km W of Adak, AlaskaThu, Jan 30, 1:22 PM HAST · 2436 days ago · 4 km deep · 9 km away
20. 1.785 km W of Adak, AlaskaThu, Jan 30, 12:34 PM HAST · 2436 days ago · 5 km deep · 3 km away

From the USGS Earthquake Hazards Program and its partner networks, event av62131261. Read Fri, Oct 2, 2026, 6:08 AM UTC.