M1.5 earthquake 42 km NE of Adak, Alaska

Magnitude

1.5 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Mon, Feb 23, 2026, 5:34 AM HAST

UTC

2026-02-23 15:34:28 UTC

Depth

3.5 km (2.2 mi), shallow

Epicenter

52.100° N, 176.136° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.0 km horizontally, 1.1 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

200°, poorly surrounded by stations

Stations used

7

After

1. 2.568 km SE of Adak, AlaskaMon, Feb 23, 8:55 PM HAST · 222 days ago · 35 km deep · 77 km away
2. 3.061 km ESE of Adak, AlaskaThu, Feb 26, 9:32 AM HAST · 220 days ago · 35 km deep · 58 km away
3. 3.052 km S of Adak, AlaskaFri, Feb 27, 4:44 PM HAST · 219 days ago · 35 km deep · 84 km away
4. 3.032 km SSW of Adak, AlaskaSun, Mar 1, 10:45 PM HAST · 216 days ago · 35 km deep · 72 km away
5. 2.976 km SW of Atka, AlaskaWed, Mar 4, 3:26 AM HAST · 214 days ago · 35 km deep · 100 km away
6. 2.383 km E of Adak, AlaskaSat, Mar 7, 3:14 PM HAST · 211 days ago · 10 km deep · 51 km away
7. 2.5102 km ESE of Adak, AlaskaSun, Mar 8, 4:50 PM HADT · 210 days ago · 32 km deep · 87 km away
8. 2.053 km SSE of Adak, AlaskaMon, Mar 9, 4:45 AM HADT · 209 days ago · 28 km deep · 75 km away
9. 2.379 km ESE of Adak, AlaskaMon, Mar 9, 9:49 AM HADT · 209 days ago · 44 km deep · 63 km away
10. 1.829 km SE of Adak, AlaskaMon, Mar 9, 9:53 AM HADT · 209 days ago · 74 km deep · 48 km away
11. 2.494 km ESE of Adak, AlaskaTue, Mar 10, 9:08 PM HADT · 207 days ago · 31 km deep · 85 km away
12. 3.952 km ESE of Adak, AlaskaWed, Mar 11, 3:31 AM HADT · 207 days ago · 58 km deep · 48 km away
13. 2.160 km SE of Adak, AlaskaWed, Mar 11, 9:42 AM HADT · 207 days ago · 50 km deep · 64 km away
14. 1.732 km SW of Adak, AlaskaThu, Mar 12, 1:42 AM HADT · 206 days ago · 74 km deep · 75 km away
15. 2.361 km S of Adak, AlaskaFri, Mar 13, 12:19 AM HADT · 205 days ago · 29 km deep · 91 km away
16. 2.153 km S of Adak, AlaskaSat, Mar 14, 4:04 PM HADT · 204 days ago · 50 km deep · 88 km away
17. 2.481 km SE of Adak, AlaskaSat, Mar 14, 6:59 PM HADT · 204 days ago · 19 km deep · 85 km away
18. 1.958 km W of Adak, AlaskaSat, Mar 14, 8:13 PM HADT · 204 days ago · 121 km deep · 92 km away
19. 3.444 km E of Adak, AlaskaSat, Mar 14, 9:37 PM HADT · 203 days ago · 78 km deep · 34 km away
20. 2.357 km SSW of Adak, AlaskaSun, Mar 15, 10:47 AM HADT · 203 days ago · 50 km deep · 97 km away
21. 2.467 km SE of Adak, AlaskaSun, Mar 15, 4:53 PM HADT · 203 days ago · 35 km deep · 71 km away
22. 2.350 km SSW of Adak, AlaskaMon, Mar 16, 6:51 AM HADT · 202 days ago · 27 km deep · 87 km away
23. 2.771 km SE of Adak, AlaskaMon, Mar 16, 11:50 AM HADT · 202 days ago · 35 km deep · 83 km away
24. 2.278 km SE of Adak, AlaskaWed, Mar 18, 10:44 AM HADT · 200 days ago · 7 km deep · 90 km away
25. 2.273 km SSE of Adak, AlaskaThu, Mar 19, 5:30 AM HADT · 199 days ago · 12 km deep · 87 km away
26. 1.739 km SSW of Adak, AlaskaThu, Mar 19, 9:42 PM HADT · 198 days ago · 20 km deep · 80 km away
27. 2.350 km SSW of Adak, AlaskaFri, Mar 20, 2:25 AM HADT · 198 days ago · 21 km deep · 89 km away
28. 2.985 km SW of Atka, AlaskaFri, Mar 20, 2:50 PM HADT · 198 days ago · 35 km deep · 91 km away
29. 2.573 km SSE of Adak, AlaskaSun, Mar 22, 4:02 AM HADT · 196 days ago · 35 km deep · 99 km away
30. 2.358 km S of Adak, AlaskaSun, Mar 22, 6:25 AM HADT · 196 days ago · 39 km deep · 92 km away
31. 2.532 km SSW of Adak, AlaskaMon, Mar 23, 2:38 PM HADT · 195 days ago · 35 km deep · 72 km away
32. 2.472 km SE of Adak, AlaskaTue, Mar 24, 2:01 AM HADT · 194 days ago · 21 km deep · 82 km away
33. 4.527 km S of Adak, AlaskaTue, Mar 24, 7:43 AM HADT · 194 days ago · 54 km deep · 65 km away · felt by 1
34. 2.045 km SSW of Adak, AlaskaTue, Mar 24, 4:59 PM HADT · 194 days ago · 19 km deep · 83 km away
35. 2.573 km SSE of Adak, AlaskaTue, Mar 24, 5:49 PM HADT · 194 days ago · 35 km deep · 93 km away
36. 2.270 km SSE of Adak, AlaskaTue, Mar 24, 7:40 PM HADT · 194 days ago · 25 km deep · 86 km away
37. 1.922 km S of Adak, AlaskaWed, Mar 25, 7:24 AM HADT · 193 days ago · 75 km deep · 59 km away
38. 2.466 km SE of Adak, AlaskaThu, Mar 26, 1:18 PM HADT · 192 days ago · 35 km deep · 74 km away
39. 3.759 km S of Adak, AlaskaFri, Mar 27, 9:58 AM HADT · 191 days ago · 35 km deep · 95 km away
40. 2.468 km SE of Adak, AlaskaFri, Mar 27, 11:13 AM HADT · 191 days ago · 22 km deep · 79 km away
41. 2.560 km SE of Adak, AlaskaSat, Mar 28, 3:01 AM HADT · 190 days ago · 36 km deep · 64 km away
42. 2.371 km SE of Adak, AlaskaSat, Mar 28, 10:25 PM HADT · 189 days ago · 19 km deep · 80 km away
43. 2.272 km SSE of Adak, AlaskaSun, Mar 29, 4:19 AM HADT · 189 days ago · 19 km deep · 92 km away
44. 2.460 km ESE of Adak, AlaskaSun, Mar 29, 7:45 PM HADT · 189 days ago · 60 km deep · 56 km away
45. 1.973 km SSE of Adak, AlaskaMon, Mar 30, 3:15 AM HADT · 188 days ago · 14 km deep · 86 km away
46. 2.261 km S of Adak, AlaskaMon, Mar 30, 6:20 AM HADT · 188 days ago · 27 km deep · 94 km away
47. 2.872 km ESE of Adak, AlaskaMon, Mar 30, 3:04 PM HADT · 188 days ago · 53 km deep · 58 km away
48. 2.264 km S of Adak, AlaskaMon, Mar 30, 7:26 PM HADT · 188 days ago · 28 km deep · 91 km away
49. 2.674 km SSE of Adak, AlaskaTue, Mar 31, 7:48 AM HADT · 187 days ago · 35 km deep · 87 km away
50. 2.348 km SSW of Adak, AlaskaWed, Apr 1, 10:24 AM HADT · 186 days ago · 35 km deep · 86 km away
51. 2.676 km SE of Adak, AlaskaWed, Apr 1, 7:47 PM HADT · 186 days ago · 35 km deep · 82 km away
52. 2.461 km SSE of Adak, AlaskaThu, Apr 2, 1:21 PM HADT · 185 days ago · 26 km deep · 77 km away
53. 2.539 km SSW of Adak, AlaskaThu, Apr 2, 2:01 PM HADT · 185 days ago · 10 km deep · 80 km away
54. 2.120 km SSW of Adak, AlaskaFri, Apr 3, 7:39 PM HADT · 184 days ago · 72 km deep · 61 km away
55. 1.841 km NE of Adak, AlaskaSat, Apr 4, 1:23 AM HADT · 183 days ago · 4 km deep · 1 km away
56. 2.043 km SW of Adak, AlaskaSat, Apr 4, 2:55 AM HADT · 183 days ago · 20 km deep · 86 km away
57. 2.267 km SSE of Adak, AlaskaSat, Apr 4, 4:06 AM HADT · 183 days ago · 17 km deep · 84 km away
58. 2.691 km SW of Atka, AlaskaSun, Apr 5, 2:45 AM HADT · 182 days ago · 35 km deep · 96 km away
59. 3.589 km ESE of Adak, AlaskaSun, Apr 5, 2:17 PM HADT · 182 days ago · 48 km deep · 74 km away
60. 2.674 km SE of Adak, AlaskaMon, Apr 6, 10:00 AM HADT · 181 days ago · 18 km deep · 84 km away

The first 60 of 85.

Before

1. 2.532 km S of Adak, AlaskaSun, Feb 22, 10:13 PM HAST · 223 days ago · 68 km deep · 69 km away
2. 2.02 km WNW of Adak, AlaskaSat, Feb 21, 6:52 PM HAST · 225 days ago · -2 km deep · 44 km away
3. 2.947 km WSW of Atka, AlaskaSat, Feb 21, 6:52 PM HAST · 225 days ago · 10 km deep · 87 km away
4. 2.745 km S of Adak, AlaskaThu, Feb 19, 7:30 PM HAST · 226 days ago · 33 km deep · 80 km away
5. 2.695 km SE of Adak, AlaskaThu, Feb 19, 4:50 PM HAST · 227 days ago · 4 km deep · 96 km away
6. 1.821 km E of Adak, AlaskaThu, Feb 19, 7:14 AM HAST · 227 days ago · 92 km deep · 28 km away
7. 1.86 km SW of Adak, AlaskaThu, Feb 19, 2:35 AM HAST · 227 days ago · 89 km deep · 49 km away
8. 2.371 km SSE of Adak, AlaskaWed, Feb 18, 11:34 PM HAST · 227 days ago · 28 km deep · 86 km away
9. 4.047 km ESE of Adak, AlaskaTue, Feb 17, 1:17 PM HAST · 229 days ago · 60 km deep · 37 km away
10. 3.173 km ESE of Adak, AlaskaTue, Feb 17, 12:32 PM HAST · 229 days ago · 35 km deep · 68 km away
11. 3.737 km ENE of Adak, AlaskaTue, Feb 17, 6:35 AM HAST · 229 days ago · 145 km deep · 13 km away
12. 2.647 km WSW of Atka, AlaskaMon, Feb 16, 8:59 PM HAST · 229 days ago · 105 km deep · 89 km away
13. 2.463 km ESE of Adak, AlaskaSat, Feb 14, 7:49 AM HAST · 232 days ago · 35 km deep · 63 km away
14. 2.564 km SSE of Adak, AlaskaFri, Feb 13, 11:57 PM HAST · 232 days ago · 25 km deep · 86 km away
15. 2.478 km ESE of Adak, AlaskaFri, Feb 13, 8:34 PM HAST · 232 days ago · 35 km deep · 74 km away
16. 2.781 km ESE of Adak, AlaskaFri, Feb 13, 5:37 PM HAST · 233 days ago · 55 km deep · 64 km away
17. 2.972 km SSE of Adak, AlaskaFri, Feb 13, 10:51 AM HAST · 233 days ago · 35 km deep · 86 km away
18. 3.944 km E of Adak, AlaskaThu, Feb 12, 5:19 PM HAST · 234 days ago · 62 km deep · 32 km away
19. 3.894 km SW of Atka, AlaskaThu, Feb 12, 1:28 PM HAST · 234 days ago · 41 km deep · 84 km away
20. 3.789 km SW of Atka, AlaskaWed, Feb 11, 11:12 PM HAST · 234 days ago · 35 km deep · 81 km away

From the USGS Earthquake Hazards Program and its partner networks, event av94051638. Read Sun, Oct 4, 2026, 5:00 PM UTC.