M1.8 earthquake 261 km W of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Mon, Dec 8, 2025, 3:59 PM GMT+12

UTC

2025-12-08 03:59:17 UTC

Depth

3.5 km (2.2 mi), shallow

Epicenter

51.901° N, 179.563° E

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.9 km horizontally, 1.4 km in depth

Magnitude uncertainty

±0.25

Depth from

From location

Station coverage gap

148°

Stations used

5

After

1. 2.1252 km W of Adak, AlaskaMon, Dec 8, 11:37 PM GMT+12 · 300 days ago · 4 km deep · 9 km away
2. 1.5261 km W of Adak, AlaskaTue, Dec 9, 7:37 PM GMT+12 · 300 days ago · 16 km deep · 0 km away
3. 1.6263 km W of Adak, AlaskaWed, Dec 10, 8:52 PM GMT+12 · 299 days ago · 3 km deep · 11 km away
4. 2.4166 km W of Adak, AlaskaWed, Dec 10, 3:19 AM HAST · 298 days ago · 5 km deep · 99 km away
5. 2.1263 km W of Adak, AlaskaThu, Dec 11, 6:55 PM GMT+12 · 298 days ago · 11 km deep · 8 km away
6. 1.9269 km W of Adak, AlaskaFri, Dec 12, 11:39 AM GMT+12 · 297 days ago · 8 km deep · 11 km away
7. 5.5Rat Islands, Aleutian Islands, AlaskaSat, Dec 13, 10:51 PM GMT+12 · 295 days ago · 108 km deep · 87 km away
8. 3.4Rat Islands, Aleutian Islands, AlaskaSat, Dec 13, 10:59 PM GMT+12 · 295 days ago · 116 km deep · 91 km away
9. 2.6Rat Islands, Aleutian Islands, AlaskaTue, Dec 16, 9:56 AM GMT+12 · 293 days ago · 112 km deep · 81 km away
10. 2.5228 km WSW of Adak, AlaskaTue, Dec 16, 10:49 AM HAST · 292 days ago · 66 km deep · 63 km away
11. 2.4172 km W of Adak, AlaskaTue, Dec 16, 3:05 PM HAST · 292 days ago · 130 km deep · 91 km away
12. 2.0Rat Islands, Aleutian Islands, AlaskaThu, Dec 18, 2:35 PM GMT+12 · 291 days ago · 3 km deep · 82 km away
13. 2.6252 km WSW of Adak, AlaskaFri, Dec 19, 3:03 AM GMT+12 · 290 days ago · 35 km deep · 89 km away
14. 2.6261 km W of Adak, AlaskaFri, Dec 19, 4:27 PM GMT+12 · 290 days ago · 92 km deep · 15 km away
15. 3.3220 km W of Adak, AlaskaFri, Dec 19, 2:50 AM HAST · 289 days ago · 106 km deep · 46 km away
16. 3.3263 km W of Adak, AlaskaSun, Dec 21, 2:45 AM GMT+12 · 288 days ago · 193 km deep · 6 km away
17. 1.6255 km W of Adak, AlaskaSun, Dec 21, 10:22 PM GMT+12 · 287 days ago · 4 km deep · 14 km away
18. 2.8181 km WSW of Adak, AlaskaMon, Dec 22, 11:06 PM HAST · 286 days ago · 76 km deep · 98 km away
19. 3.2262 km W of Adak, AlaskaThu, Dec 25, 2:58 PM GMT+12 · 284 days ago · 77 km deep · 27 km away
20. 1.6168 km W of Adak, AlaskaWed, Dec 24, 8:32 PM HAST · 284 days ago · 14 km deep · 96 km away
21. 2.8277 km W of Adak, AlaskaFri, Dec 26, 12:05 AM GMT+12 · 283 days ago · 67 km deep · 43 km away
22. 3.5Rat Islands, Aleutian Islands, AlaskaSun, Dec 28, 11:30 AM GMT+12 · 281 days ago · 125 km deep · 85 km away
23. 3.4Rat Islands, Aleutian Islands, AlaskaTue, Dec 30, 4:06 AM GMT+12 · 279 days ago · 122 km deep · 93 km away
24. 3.7Rat Islands, Aleutian Islands, AlaskaTue, Dec 30, 8:08 PM GMT+12 · 279 days ago · 98 km deep · 68 km away
25. 3.1291 km WSW of Adak, AlaskaTue, Dec 30, 9:46 PM GMT+12 · 278 days ago · 41 km deep · 68 km away
26. 3.4Rat Islands, Aleutian Islands, AlaskaFri, Jan 2, 1:01 AM GMT+12 · 276 days ago · 98 km deep · 74 km away
27. 1.5250 km W of Adak, AlaskaSun, Jan 4, 7:38 PM GMT+12 · 274 days ago · 5 km deep · 16 km away
28. 3.3233 km WSW of Adak, AlaskaMon, Jan 12, 12:37 PM HAST · 265 days ago · 35 km deep · 96 km away
29. 2.9233 km W of Adak, AlaskaMon, Jan 12, 9:04 PM HAST · 265 days ago · 95 km deep · 39 km away
30. 2.7Rat Islands, Aleutian Islands, AlaskaSun, Jan 18, 12:55 AM GMT+12 · 260 days ago · 48 km deep · 81 km away
31. 2.8233 km WSW of Adak, AlaskaWed, Jan 21, 1:21 AM HAST · 256 days ago · 18 km deep · 72 km away
32. 2.3Rat Islands, Aleutian Islands, AlaskaFri, Jan 23, 10:11 AM GMT+12 · 255 days ago · 5 km deep · 85 km away
33. 3.5299 km WSW of Adak, AlaskaSun, Jan 25, 8:40 PM GMT+12 · 253 days ago · 26 km deep · 64 km away
34. 3.2Rat Islands, Aleutian Islands, AlaskaMon, Jan 26, 4:29 AM GMT+12 · 252 days ago · 35 km deep · 87 km away
35. 3.4205 km W of Adak, AlaskaMon, Jan 26, 6:21 PM HAST · 251 days ago · 94 km deep · 62 km away
36. 3.6265 km W of Adak, AlaskaSun, Feb 1, 6:28 AM GMT+12 · 246 days ago · 80 km deep · 32 km away
37. 3.9295 km W of Adak, AlaskaMon, Feb 2, 1:13 AM GMT+12 · 245 days ago · 176 km deep · 57 km away
38. 3.3283 km WSW of Adak, AlaskaMon, Feb 2, 12:54 PM GMT+12 · 245 days ago · 35 km deep · 61 km away
39. 3.0283 km WSW of Adak, AlaskaWed, Feb 4, 1:19 PM GMT+12 · 243 days ago · 35 km deep · 87 km away
40. 4.1Rat Islands, Aleutian Islands, AlaskaWed, Feb 4, 6:06 PM GMT+12 · 243 days ago · 69 km deep · 88 km away
41. 2.9269 km W of Adak, AlaskaWed, Feb 4, 8:21 PM GMT+12 · 243 days ago · 108 km deep · 15 km away

Before

1. 4.3266 km W of Adak, AlaskaMon, Dec 8, 3:58 AM GMT+12 · 301 days ago · 171 km deep · 30 km away
2. 3.2269 km WSW of Adak, AlaskaSun, Dec 7, 8:01 PM GMT+12 · 302 days ago · 52 km deep · 65 km away
3. 2.1273 km W of Adak, AlaskaSun, Dec 7, 4:44 PM GMT+12 · 302 days ago · 12 km deep · 13 km away
4. 3.7256 km W of Adak, AlaskaTue, Dec 2, 1:32 AM GMT+12 · 307 days ago · 133 km deep · 18 km away
5. 3.7259 km WSW of Adak, AlaskaSat, Nov 29, 12:43 PM GMT+12 · 310 days ago · 54 km deep · 74 km away
6. 2.9223 km WSW of Adak, AlaskaThu, Nov 27, 3:57 AM HAST · 311 days ago · 10 km deep · 96 km away
7. 2.9Rat Islands, Aleutian Islands, AlaskaThu, Nov 27, 8:59 PM GMT+12 · 312 days ago · 92 km deep · 64 km away
8. 2.7276 km W of Adak, AlaskaWed, Nov 26, 6:38 PM GMT+12 · 313 days ago · 63 km deep · 45 km away
9. 2.5256 km WSW of Adak, AlaskaWed, Nov 26, 3:44 PM GMT+12 · 313 days ago · 67 km deep · 51 km away
10. 2.9185 km WSW of Adak, AlaskaTue, Nov 25, 4:37 PM HAST · 313 days ago · 77 km deep · 98 km away
11. 2.3Rat Islands, Aleutian Islands, AlaskaWed, Nov 26, 1:02 PM GMT+12 · 313 days ago · 13 km deep · 78 km away
12. 3.4246 km WSW of Adak, AlaskaMon, Nov 24, 4:25 AM GMT+12 · 315 days ago · 47 km deep · 62 km away
13. 2.6177 km W of Adak, AlaskaFri, Nov 21, 11:58 PM HAST · 316 days ago · 239 km deep · 85 km away
14. 3.1285 km W of Adak, AlaskaSat, Nov 22, 9:33 PM GMT+12 · 316 days ago · 120 km deep · 24 km away
15. 2.8Rat Islands, Aleutian Islands, AlaskaFri, Nov 21, 2:05 AM GMT+12 · 318 days ago · 12 km deep · 77 km away
16. 3.3Rat Islands, Aleutian Islands, AlaskaFri, Nov 21, 1:09 AM GMT+12 · 318 days ago · 106 km deep · 83 km away
17. 2.6231 km WSW of Adak, AlaskaWed, Nov 19, 7:53 PM HAST · 319 days ago · 14 km deep · 99 km away
18. 4.3Rat Islands, Aleutian Islands, AlaskaMon, Nov 17, 9:01 AM GMT+12 · 322 days ago · 97 km deep · 70 km away
19. 4.3299 km W of Adak, AlaskaSat, Nov 15, 1:20 PM GMT+12 · 324 days ago · 200 km deep · 53 km away

From the USGS Earthquake Hazards Program and its partner networks, event av93932156. Read Sun, Oct 4, 2026, 8:55 PM UTC.