M1.8 earthquake 261 km W of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Sat, Dec 21, 2024, 1:15 AM GMT+12

UTC

2024-12-20 13:15:59 UTC

Depth

10.4 km (6.5 mi), shallow

Epicenter

51.908° N, 179.565° E

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.3 km horizontally, 1.7 km in depth

Magnitude uncertainty

±0.18

Depth from

From location

Station coverage gap

124°

Stations used

6

After

1. 2.0204 km WSW of Adak, AlaskaFri, Dec 20, 9:48 AM HAST · 653 days ago · 15 km deep · 88 km away
2. 2.7Rat Islands, Aleutian Islands, AlaskaSun, Dec 22, 3:25 PM GMT+12 · 652 days ago · 102 km deep · 71 km away
3. 2.2206 km W of Adak, AlaskaSat, Dec 21, 7:08 PM HAST · 652 days ago · 84 km deep · 60 km away
4. 2.4296 km WSW of Adak, AlaskaMon, Dec 23, 5:48 AM GMT+12 · 651 days ago · 12 km deep · 95 km away
5. 4.1Rat Islands, Aleutian Islands, AlaskaTue, Dec 24, 6:36 PM GMT+12 · 650 days ago · 47 km deep · 82 km away
6. 3.1Rat Islands, Aleutian Islands, AlaskaTue, Dec 24, 8:18 PM GMT+12 · 650 days ago · 44 km deep · 80 km away
7. 2.5192 km W of Adak, AlaskaSat, Dec 28, 9:01 PM HAST · 645 days ago · 72 km deep · 78 km away
8. 2.1222 km W of Adak, AlaskaSun, Dec 29, 1:41 AM HAST · 644 days ago · 13 km deep · 48 km away
9. 2.2208 km WSW of Adak, AlaskaSun, Dec 29, 2:09 PM HAST · 644 days ago · 13 km deep · 92 km away
10. 2.7249 km WSW of Adak, AlaskaTue, Dec 31, 2:59 AM GMT+12 · 643 days ago · 31 km deep · 69 km away
11. 2.9Rat Islands, Aleutian Islands, AlaskaTue, Dec 31, 5:31 AM GMT+12 · 643 days ago · 77 km deep · 88 km away
12. 3.9Rat Islands, Aleutian Islands, AlaskaTue, Dec 31, 2:33 PM GMT+12 · 643 days ago · 170 km deep · 65 km away
13. 2.2180 km WSW of Adak, AlaskaTue, Dec 31, 1:31 AM HAST · 642 days ago · 10 km deep · 96 km away
14. 2.7264 km WSW of Adak, AlaskaWed, Jan 1, 7:29 AM GMT+12 · 642 days ago · 69 km deep · 49 km away
15. 1.9297 km W of Adak, AlaskaThu, Jan 2, 9:06 PM GMT+12 · 641 days ago · 7 km deep · 38 km away
16. 2.9Rat Islands, Aleutian Islands, AlaskaThu, Jan 2, 10:18 PM GMT+12 · 640 days ago · 35 km deep · 97 km away
17. 3.0257 km W of Adak, AlaskaSun, Jan 5, 2:14 AM GMT+12 · 638 days ago · 99 km deep · 15 km away
18. 2.8215 km W of Adak, AlaskaSat, Jan 4, 4:59 AM HAST · 638 days ago · 93 km deep · 51 km away
19. 3.1277 km WSW of Adak, AlaskaSun, Jan 5, 10:47 AM GMT+12 · 638 days ago · 35 km deep · 94 km away
20. 3.2269 km WSW of Adak, AlaskaSun, Jan 5, 4:23 PM GMT+12 · 638 days ago · 10 km deep · 100 km away
21. 3.2281 km WSW of Adak, AlaskaMon, Jan 6, 7:56 PM GMT+12 · 637 days ago · 35 km deep · 90 km away
22. 2.7213 km W of Adak, AlaskaMon, Jan 6, 6:00 AM HAST · 636 days ago · 117 km deep · 49 km away
23. 3.3Rat Islands, Aleutian Islands, AlaskaTue, Jan 7, 8:52 AM GMT+12 · 636 days ago · 105 km deep · 91 km away
24. 2.1237 km W of Adak, AlaskaTue, Jan 7, 4:41 PM HAST · 635 days ago · 24 km deep · 30 km away
25. 2.9275 km WSW of Adak, AlaskaThu, Jan 9, 10:32 AM GMT+12 · 634 days ago · 10 km deep · 54 km away
26. 2.7Rat Islands, Aleutian Islands, AlaskaThu, Jan 9, 1:02 PM GMT+12 · 634 days ago · 117 km deep · 77 km away
27. 1.7271 km W of Adak, AlaskaThu, Jan 9, 1:20 PM GMT+12 · 634 days ago · 8 km deep · 11 km away
28. 2.6204 km WSW of Adak, AlaskaFri, Jan 10, 7:06 AM HAST · 632 days ago · 16 km deep · 96 km away
29. 2.8179 km WSW of Adak, AlaskaFri, Jan 10, 10:22 AM HAST · 632 days ago · 68 km deep · 100 km away
30. 2.9203 km W of Adak, AlaskaFri, Jan 10, 1:37 PM HAST · 632 days ago · 140 km deep · 58 km away
31. 2.0224 km WSW of Adak, AlaskaSat, Jan 11, 1:17 AM HAST · 631 days ago · 51 km deep · 67 km away
32. 2.3195 km W of Adak, AlaskaSat, Jan 11, 8:54 AM HAST · 631 days ago · 81 km deep · 71 km away
33. 1.6Rat Islands, Aleutian Islands, AlaskaSun, Jan 12, 4:37 PM GMT+12 · 631 days ago · 3 km deep · 79 km away
34. 1.9Rat Islands, Aleutian Islands, AlaskaSun, Jan 12, 4:40 PM GMT+12 · 631 days ago · 3 km deep · 79 km away
35. 2.1257 km WSW of Adak, AlaskaSun, Jan 12, 9:18 PM GMT+12 · 631 days ago · 55 km deep · 54 km away
36. 2.6Rat Islands, Aleutian Islands, AlaskaSun, Jan 12, 9:57 PM GMT+12 · 630 days ago · 49 km deep · 69 km away
37. 2.7212 km W of Adak, AlaskaSun, Jan 12, 3:14 AM HAST · 630 days ago · 121 km deep · 49 km away
38. 2.1260 km WSW of Adak, AlaskaTue, Jan 14, 2:21 AM GMT+12 · 629 days ago · 50 km deep · 63 km away
39. 2.0Rat Islands, Aleutian Islands, AlaskaWed, Jan 15, 8:11 AM GMT+12 · 628 days ago · 20 km deep · 86 km away
40. 3.8263 km WSW of Adak, AlaskaThu, Jan 16, 12:27 PM GMT+12 · 627 days ago · 27 km deep · 87 km away
41. 2.3Rat Islands, Aleutian Islands, AlaskaSat, Jan 18, 7:53 PM GMT+12 · 625 days ago · 24 km deep · 94 km away
42. 2.6284 km WSW of Adak, AlaskaSun, Jan 19, 9:50 AM GMT+12 · 624 days ago · 55 km deep · 57 km away
43. 2.9Rat Islands, Aleutian Islands, AlaskaSun, Jan 19, 10:55 PM GMT+12 · 623 days ago · 119 km deep · 82 km away
44. 2.4225 km WSW of Adak, AlaskaSun, Jan 19, 8:52 AM HAST · 623 days ago · 56 km deep · 84 km away
45. 2.1275 km WSW of Adak, AlaskaTue, Jan 21, 2:58 PM GMT+12 · 622 days ago · 23 km deep · 74 km away
46. 2.8Rat Islands, Aleutian Islands, AlaskaTue, Jan 21, 3:29 PM GMT+12 · 622 days ago · 24 km deep · 87 km away
47. 2.7Rat Islands, Aleutian Islands, AlaskaTue, Jan 21, 10:38 PM GMT+12 · 621 days ago · 121 km deep · 64 km away
48. 2.2239 km W of Adak, AlaskaWed, Jan 22, 1:01 AM GMT+12 · 621 days ago · 23 km deep · 28 km away
49. 2.0268 km W of Adak, AlaskaThu, Jan 23, 5:30 PM GMT+12 · 620 days ago · 9 km deep · 44 km away
50. 3.1255 km W of Adak, AlaskaFri, Jan 24, 10:50 AM GMT+12 · 619 days ago · 93 km deep · 48 km away
51. 1.9264 km W of Adak, AlaskaSat, Jan 25, 9:27 PM GMT+12 · 618 days ago · 9 km deep · 31 km away
52. 2.2Rat Islands, Aleutian Islands, AlaskaTue, Jan 28, 1:57 AM GMT+12 · 615 days ago · 17 km deep · 90 km away
53. 2.3Rat Islands, Aleutian Islands, AlaskaTue, Jan 28, 2:03 AM GMT+12 · 615 days ago · 70 km deep · 67 km away
54. 3.3256 km W of Adak, AlaskaTue, Jan 28, 4:29 AM GMT+12 · 615 days ago · 115 km deep · 20 km away
55. 2.9292 km W of Adak, AlaskaTue, Jan 28, 11:52 AM GMT+12 · 615 days ago · 71 km deep · 43 km away
56. 1.7Rat Islands, Aleutian Islands, AlaskaTue, Jan 28, 5:10 PM GMT+12 · 615 days ago · 13 km deep · 64 km away
57. 1.9Rat Islands, Aleutian Islands, AlaskaTue, Jan 28, 5:21 PM GMT+12 · 615 days ago · 22 km deep · 93 km away
58. 2.1Rat Islands, Aleutian Islands, AlaskaTue, Jan 28, 5:26 PM GMT+12 · 615 days ago · 95 km deep · 66 km away
59. 3.2204 km W of Adak, AlaskaWed, Jan 29, 12:21 AM HAST · 613 days ago · 172 km deep · 66 km away
60. 4.4Rat Islands, Aleutian Islands, AlaskaThu, Jan 30, 4:53 PM GMT+12 · 613 days ago · 125 km deep · 89 km away · tsunami flag

The first 60 of 92.

Before

1. 2.7Rat Islands, Aleutian Islands, AlaskaSat, Dec 21, 12:26 AM GMT+12 · 653 days ago · 35 km deep · 93 km away
2. 2.5246 km WSW of Adak, AlaskaThu, Dec 19, 12:33 AM GMT+12 · 655 days ago · 62 km deep · 72 km away
3. 3.3195 km W of Adak, AlaskaTue, Dec 17, 7:44 PM HAST · 656 days ago · 97 km deep · 71 km away
4. 2.0200 km WSW of Adak, AlaskaTue, Dec 17, 2:55 AM HAST · 656 days ago · 13 km deep · 78 km away
5. 3.0248 km W of Adak, AlaskaTue, Dec 17, 12:35 PM GMT+12 · 657 days ago · 175 km deep · 15 km away
6. 2.9253 km WSW of Adak, AlaskaSun, Dec 15, 1:39 AM GMT+12 · 659 days ago · 63 km deep · 53 km away
7. 2.0Rat Islands, Aleutian Islands, AlaskaThu, Dec 12, 2:46 PM GMT+12 · 662 days ago · 18 km deep · 95 km away
8. 2.1Rat Islands, Aleutian Islands, AlaskaThu, Dec 12, 12:06 AM GMT+12 · 662 days ago · 20 km deep · 98 km away
9. 3.1239 km W of Adak, AlaskaTue, Dec 10, 9:37 PM HAST · 663 days ago · 170 km deep · 27 km away
10. 2.1256 km W of Adak, AlaskaTue, Dec 10, 2:23 AM GMT+12 · 664 days ago · 77 km deep · 26 km away
11. 2.4Rat Islands, Aleutian Islands, AlaskaMon, Dec 9, 3:25 PM GMT+12 · 665 days ago · 127 km deep · 88 km away
12. 2.0Rat Islands, Aleutian Islands, AlaskaMon, Dec 9, 8:22 AM GMT+12 · 665 days ago · 13 km deep · 78 km away
13. 1.9Rat Islands, Aleutian Islands, AlaskaMon, Dec 9, 2:31 AM GMT+12 · 665 days ago · 26 km deep · 90 km away
14. 1.8261 km W of Adak, AlaskaSun, Dec 8, 3:24 PM GMT+12 · 666 days ago · 8 km deep · 1 km away
15. 2.8237 km W of Adak, AlaskaSat, Dec 7, 8:37 AM HAST · 666 days ago · 94 km deep · 35 km away
16. 2.3228 km WSW of Adak, AlaskaFri, Dec 6, 7:23 PM HAST · 667 days ago · 13 km deep · 82 km away
17. 2.2224 km W of Adak, AlaskaThu, Dec 5, 6:24 PM HAST · 668 days ago · 74 km deep · 51 km away
18. 2.0250 km WSW of Adak, AlaskaFri, Dec 6, 5:42 AM GMT+12 · 668 days ago · 58 km deep · 52 km away
19. 2.9245 km W of Adak, AlaskaFri, Dec 6, 5:39 AM GMT+12 · 668 days ago · 157 km deep · 20 km away
20. 3.1278 km W of Adak, AlaskaFri, Dec 6, 4:22 AM GMT+12 · 668 days ago · 61 km deep · 52 km away

From the USGS Earthquake Hazards Program and its partner networks, event av93419796. Read Sun, Oct 4, 2026, 9:01 PM UTC.