M1.9 earthquake 92 km W of Nikolski, Alaska

Magnitude

1.9 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Sat, Oct 7, 2023, 7:46 AM AKDT

UTC

2023-10-07 15:46:41 UTC

Depth

10.9 km (6.8 mi), shallow

Epicenter

52.946° N, 170.239° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.4 km horizontally, 3.8 km in depth

Magnitude uncertainty

±0.31

Depth from

From location

Station coverage gap

327°, poorly surrounded by stations

Stations used

4

• Unalaska, AlaskaPopulation 4,491. Forecast266 kmWSW

After

1. 2.148 km WSW of Nikolski, AlaskaSat, Oct 7, 2:49 PM AKDT · 1090 days ago · 10 km deep · 47 km away
2. 2.025 km WSW of Nikolski, AlaskaMon, Oct 9, 11:13 PM AKDT · 1088 days ago · 13 km deep · 69 km away
3. 2.7131 km WSW of Nikolski, AlaskaMon, Oct 9, 11:47 PM HADT · 1088 days ago · 31 km deep · 74 km away
4. 2.7130 km NW of Nikolski, AlaskaTue, Oct 10, 8:36 AM AKDT · 1088 days ago · 10 km deep · 80 km away
5. 2.1116 km NW of Nikolski, AlaskaTue, Oct 10, 8:41 AM AKDT · 1088 days ago · 16 km deep · 72 km away
6. 5.6164 km W of Nikolski, AlaskaWed, Oct 11, 5:41 PM HADT · 1086 days ago · 120 km deep · 72 km away · felt by 3 · tsunami flag
7. 4.3162 km W of Nikolski, AlaskaWed, Oct 11, 6:17 PM HADT · 1086 days ago · 117 km deep · 70 km away
8. 2.554 km SW of Nikolski, AlaskaSat, Oct 14, 2:07 PM AKDT · 1084 days ago · 24 km deep · 65 km away
9. 2.175 km WSW of Nikolski, AlaskaSat, Oct 14, 11:52 PM AKDT · 1083 days ago · 3 km deep · 32 km away
10. 1.7Fox Islands, Aleutian Islands, AlaskaSat, Oct 14, 11:58 PM AKDT · 1083 days ago · 1 km deep · 30 km away
11. 3.7127 km WSW of Nikolski, AlaskaTue, Oct 17, 7:02 PM HADT · 1080 days ago · 35 km deep · 67 km away
12. 4.587 km SSW of Nikolski, AlaskaFri, Oct 20, 11:39 AM AKDT · 1078 days ago · 21 km deep · 96 km away
13. 2.256 km SW of Nikolski, AlaskaFri, Oct 20, 2:05 PM AKDT · 1078 days ago · 30 km deep · 60 km away
14. 3.4127 km WSW of Nikolski, AlaskaSat, Oct 21, 10:46 PM HADT · 1076 days ago · 51 km deep · 60 km away
15. 4.182 km SSW of Nikolski, AlaskaWed, Oct 25, 5:35 AM AKDT · 1073 days ago · 35 km deep · 87 km away
16. 3.0124 km SW of Nikolski, AlaskaSat, Oct 28, 5:32 AM HADT · 1070 days ago · 35 km deep · 83 km away
17. 1.643 km WSW of Nikolski, AlaskaSat, Oct 28, 8:55 AM AKDT · 1070 days ago · 7 km deep · 54 km away
18. 3.5110 km W of Nikolski, AlaskaSat, Oct 28, 9:43 AM HADT · 1070 days ago · 98 km deep · 26 km away
19. 2.997 km SW of Nikolski, AlaskaSun, Oct 29, 10:11 PM AKDT · 1068 days ago · 35 km deep · 87 km away
20. 3.097 km WSW of Nikolski, AlaskaTue, Oct 31, 7:11 AM HADT · 1067 days ago · 146 km deep · 30 km away
21. 2.376 km SW of Nikolski, AlaskaTue, Oct 31, 2:13 PM AKDT · 1067 days ago · 37 km deep · 78 km away
22. 2.782 km SSW of Nikolski, AlaskaWed, Nov 1, 1:43 AM AKDT · 1066 days ago · 35 km deep · 99 km away
23. 1.864 km WSW of Nikolski, AlaskaThu, Nov 2, 1:28 AM AKDT · 1065 days ago · 13 km deep · 41 km away
24. 2.2Fox Islands, Aleutian Islands, AlaskaThu, Nov 2, 11:53 AM AKDT · 1065 days ago · 18 km deep · 93 km away
25. 2.172 km SSW of Nikolski, AlaskaFri, Nov 3, 6:26 AM AKDT · 1064 days ago · 4 km deep · 97 km away
26. 3.923 km WSW of Nikolski, AlaskaThu, Nov 9, 10:02 PM AKST · 1057 days ago · 83 km deep · 71 km away
27. 3.297 km SW of Nikolski, AlaskaFri, Nov 10, 3:07 PM AKST · 1056 days ago · 35 km deep · 90 km away
28. 2.9104 km W of Nikolski, AlaskaSat, Nov 11, 11:34 PM HAST · 1055 days ago · 146 km deep · 15 km away
29. 2.850 km SW of Nikolski, AlaskaThu, Nov 16, 7:21 AM AKST · 1051 days ago · 27 km deep · 62 km away
30. 2.371 km SW of Nikolski, AlaskaThu, Nov 16, 10:03 AM AKST · 1051 days ago · 24 km deep · 73 km away
31. 2.293 km SW of Nikolski, AlaskaSat, Nov 18, 4:17 PM AKST · 1048 days ago · 15 km deep · 77 km away
32. 1.920 km SW of Nikolski, AlaskaSat, Nov 18, 8:01 PM AKST · 1048 days ago · 38 km deep · 83 km away
33. 1.843 km WSW of Nikolski, AlaskaSat, Nov 18, 9:07 PM AKST · 1048 days ago · 13 km deep · 51 km away
34. 2.737 km S of Nikolski, AlaskaThu, Nov 23, 1:29 PM AKST · 1044 days ago · 46 km deep · 100 km away
35. 2.867 km SSW of Nikolski, AlaskaFri, Nov 24, 2:07 AM AKST · 1043 days ago · 35 km deep · 86 km away
36. 3.0172 km W of Nikolski, AlaskaMon, Nov 27, 2:03 AM HAST · 1040 days ago · 35 km deep · 80 km away
37. 3.8141 km SW of Nikolski, AlaskaTue, Nov 28, 1:48 AM HAST · 1039 days ago · 10 km deep · 100 km away
38. 3.673 km W of Nikolski, AlaskaThu, Nov 30, 10:25 PM AKST · 1036 days ago · 221 km deep · 19 km away
39. 3.4165 km W of Nikolski, AlaskaTue, Dec 5, 10:12 AM HAST · 1032 days ago · 11 km deep · 73 km away
40. 3.3158 km WSW of Nikolski, AlaskaTue, Dec 5, 1:01 PM HAST · 1031 days ago · 95 km deep · 74 km away
41. 2.9163 km WSW of Nikolski, AlaskaTue, Dec 5, 1:26 PM HAST · 1031 days ago · 96 km deep · 76 km away

Before

1. 2.048 km SW of Nikolski, AlaskaFri, Oct 6, 8:52 PM AKDT · 1091 days ago · 24 km deep · 67 km away
2. 2.862 km SSW of Nikolski, AlaskaFri, Oct 6, 5:52 AM AKDT · 1092 days ago · 35 km deep · 87 km away
3. 4.572 km SSW of Nikolski, AlaskaFri, Oct 6, 3:34 AM AKDT · 1092 days ago · 34 km deep · 94 km away · felt by 3
4. 2.258 km SW of Nikolski, AlaskaThu, Oct 5, 6:48 AM AKDT · 1093 days ago · 21 km deep · 65 km away
5. 2.6139 km SW of Nikolski, AlaskaTue, Oct 3, 11:03 AM HADT · 1095 days ago · 35 km deep · 90 km away
6. 2.2103 km SW of Nikolski, AlaskaTue, Oct 3, 8:34 AM AKDT · 1095 days ago · 40 km deep · 85 km away
7. 2.745 km N of Nikolski, AlaskaThu, Sep 28, 9:20 PM AKDT · 1099 days ago · 98 km deep · 95 km away
8. 2.769 km NNW of Nikolski, AlaskaThu, Sep 28, 6:04 AM AKDT · 1100 days ago · 35 km deep · 82 km away
9. 2.3100 km WSW of Nikolski, AlaskaTue, Sep 26, 7:26 AM HADT · 1102 days ago · 62 km deep · 46 km away
10. 2.751 km SSW of Nikolski, AlaskaTue, Sep 26, 7:42 AM AKDT · 1102 days ago · 10 km deep · 91 km away
11. 2.8132 km WSW of Nikolski, AlaskaMon, Sep 25, 4:10 AM HADT · 1103 days ago · 30 km deep · 74 km away
12. 2.3129 km SW of Nikolski, AlaskaMon, Sep 25, 1:01 AM HADT · 1103 days ago · 46 km deep · 84 km away
13. 2.8104 km SW of Nikolski, AlaskaFri, Sep 22, 8:10 PM HADT · 1105 days ago · 9 km deep · 59 km away
14. 2.799 km WSW of Nikolski, AlaskaFri, Sep 22, 7:52 PM HADT · 1105 days ago · 16 km deep · 40 km away
15. 1.747 km WSW of Nikolski, AlaskaFri, Sep 22, 4:50 PM AKDT · 1105 days ago · 7 km deep · 51 km away
16. 3.3157 km SW of Nikolski, AlaskaWed, Sep 20, 8:23 PM HADT · 1107 days ago · 35 km deep · 96 km away
17. 3.7131 km SW of Nikolski, AlaskaMon, Sep 18, 3:57 AM HADT · 1110 days ago · 35 km deep · 79 km away
18. 1.853 km SW of Nikolski, AlaskaSun, Sep 17, 9:01 AM AKDT · 1111 days ago · 8 km deep · 70 km away
19. 2.478 km WSW of Nikolski, AlaskaSat, Sep 16, 10:31 PM AKDT · 1111 days ago · 3 km deep · 22 km away
20. 4.170 km SW of Nikolski, AlaskaSat, Sep 16, 3:59 PM AKDT · 1111 days ago · 35 km deep · 77 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91117708. Read Fri, Oct 2, 2026, 9:59 AM UTC.