M3.9 earthquake 85 km SSW of Adak, Alaska

Magnitude

3.9 (mb, body-wave), minor

Magnitude from

USGS National Earthquake Information Center

Local time

Tue, Dec 25, 2018, 10:07 AM HAST

UTC

2018-12-25 20:07:23 UTC

Depth

10.0 km (6.2 mi), shallow

Epicenter

51.124° N, 176.915° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 16.9 km horizontally, 2.0 km in depth

Magnitude uncertainty

±0.07

Depth from

Operator assigned

Station coverage gap

324°, poorly surrounded by stations

Stations used

65

After

1. 2.1100 km WSW of Adak, AlaskaTue, Dec 25, 1:23 PM HAST · 2838 days ago · 25 km deep · 74 km away
2. 2.660 km SE of Adak, AlaskaWed, Dec 26, 12:20 PM HAST · 2837 days ago · 48 km deep · 69 km away
3. 2.160 km ESE of Adak, AlaskaWed, Dec 26, 9:20 PM HAST · 2836 days ago · 48 km deep · 99 km away
4. 2.1114 km WSW of Adak, AlaskaThu, Dec 27, 1:16 AM HAST · 2836 days ago · 67 km deep · 99 km away
5. 3.9118 km WSW of Adak, AlaskaThu, Dec 27, 4:43 AM HAST · 2836 days ago · 35 km deep · 87 km away
6. 2.0127 km SW of Adak, AlaskaThu, Dec 27, 2:14 PM HAST · 2835 days ago · 33 km deep · 86 km away
7. 1.665 km WSW of Adak, AlaskaThu, Dec 27, 10:19 PM HAST · 2835 days ago · 23 km deep · 65 km away
8. 2.6182 km S of Adak, AlaskaFri, Dec 28, 2:05 AM HAST · 2835 days ago · 33 km deep · 97 km away
9. 2.556 km SE of Adak, AlaskaFri, Dec 28, 2:57 PM HAST · 2834 days ago · 31 km deep · 68 km away
10. 2.2Andreanof Islands, Aleutian Islands, AlaskaFri, Dec 28, 11:47 PM HAST · 2834 days ago · 25 km deep · 60 km away
11. 2.964 km SW of Adak, AlaskaSat, Dec 29, 8:11 PM HAST · 2833 days ago · 49 km deep · 58 km away
12. 2.520 km SSE of Adak, AlaskaSat, Dec 29, 11:29 PM HAST · 2833 days ago · 53 km deep · 72 km away
13. 1.959 km SSE of Adak, AlaskaSun, Dec 30, 6:53 AM HAST · 2833 days ago · 13 km deep · 63 km away
14. 2.581 km SW of Adak, AlaskaMon, Dec 31, 2:18 AM HAST · 2832 days ago · 42 km deep · 56 km away
15. 3.762 km SE of Adak, AlaskaMon, Dec 31, 3:59 AM HAST · 2832 days ago · 35 km deep · 73 km away
16. 3.078 km SE of Adak, AlaskaMon, Dec 31, 4:01 AM HAST · 2832 days ago · 35 km deep · 67 km away
17. 2.573 km SSE of Adak, AlaskaMon, Dec 31, 4:53 AM HAST · 2832 days ago · 35 km deep · 64 km away
18. 3.069 km SSE of Adak, AlaskaMon, Dec 31, 12:00 PM HAST · 2832 days ago · 35 km deep · 62 km away
19. 2.7109 km SW of Adak, AlaskaTue, Jan 1, 5:36 AM HAST · 2831 days ago · 35 km deep · 70 km away
20. 2.1102 km WSW of Adak, AlaskaTue, Jan 1, 6:46 AM HAST · 2831 days ago · 55 km deep · 72 km away
21. 1.658 km WSW of Adak, AlaskaWed, Jan 2, 4:15 AM HAST · 2830 days ago · 48 km deep · 65 km away
22. 1.8136 km SW of Adak, AlaskaWed, Jan 2, 8:44 AM HAST · 2830 days ago · 18 km deep · 90 km away
23. 1.831 km S of Adak, AlaskaWed, Jan 2, 10:06 AM HAST · 2830 days ago · 45 km deep · 56 km away
24. 2.554 km S of Adak, AlaskaWed, Jan 2, 6:01 PM HAST · 2829 days ago · 35 km deep · 34 km away
25. 1.992 km SW of Adak, AlaskaThu, Jan 3, 12:44 PM HAST · 2829 days ago · 44 km deep · 59 km away
26. 2.060 km SE of Adak, AlaskaThu, Jan 3, 5:11 PM HAST · 2828 days ago · 21 km deep · 63 km away
27. 2.154 km SE of Adak, AlaskaFri, Jan 4, 3:49 AM HAST · 2828 days ago · 23 km deep · 65 km away
28. 5.9Andreanof Islands, Aleutian Islands, AlaskaSat, Jan 5, 8:47 AM HAST · 2827 days ago · 30 km deep · 87 km away · felt by 4 · tsunami flag
29. 3.8124 km SW of Adak, AlaskaSat, Jan 5, 8:50 AM HAST · 2827 days ago · 45 km deep · 85 km away
30. 2.7Andreanof Islands, Aleutian Islands, AlaskaSat, Jan 5, 8:51 AM HAST · 2827 days ago · 35 km deep · 87 km away
31. 2.6130 km SW of Adak, AlaskaSat, Jan 5, 8:54 AM HAST · 2827 days ago · 35 km deep · 86 km away
32. 3.2127 km SW of Adak, AlaskaSat, Jan 5, 8:55 AM HAST · 2827 days ago · 32 km deep · 86 km away
33. 4.3128 km WSW of Adak, AlaskaSat, Jan 5, 8:58 AM HAST · 2827 days ago · 45 km deep · 91 km away
34. 2.9130 km SW of Adak, AlaskaSat, Jan 5, 9:00 AM HAST · 2827 days ago · 26 km deep · 90 km away
35. 2.4121 km WSW of Adak, AlaskaSat, Jan 5, 9:02 AM HAST · 2827 days ago · 69 km deep · 85 km away
36. 4.0134 km SW of Adak, AlaskaSat, Jan 5, 9:03 AM HAST · 2827 days ago · 42 km deep · 90 km away
37. 2.4124 km SW of Adak, AlaskaSat, Jan 5, 9:08 AM HAST · 2827 days ago · 13 km deep · 81 km away
38. 2.5133 km SW of Adak, AlaskaSat, Jan 5, 9:10 AM HAST · 2827 days ago · 28 km deep · 88 km away
39. 2.7131 km SW of Adak, AlaskaSat, Jan 5, 9:13 AM HAST · 2827 days ago · 35 km deep · 87 km away
40. 2.4127 km WSW of Adak, AlaskaSat, Jan 5, 9:13 AM HAST · 2827 days ago · 54 km deep · 90 km away
41. 2.5132 km SW of Adak, AlaskaSat, Jan 5, 9:17 AM HAST · 2827 days ago · 35 km deep · 88 km away
42. 2.8137 km SW of Adak, AlaskaSat, Jan 5, 9:20 AM HAST · 2827 days ago · 33 km deep · 93 km away
43. 2.6132 km SW of Adak, AlaskaSat, Jan 5, 9:27 AM HAST · 2827 days ago · 26 km deep · 89 km away
44. 2.6131 km SW of Adak, AlaskaSat, Jan 5, 9:51 AM HAST · 2827 days ago · 35 km deep · 85 km away
45. 2.4123 km SW of Adak, AlaskaSat, Jan 5, 9:57 AM HAST · 2827 days ago · 49 km deep · 84 km away
46. 2.7127 km SW of Adak, AlaskaSat, Jan 5, 10:36 AM HAST · 2827 days ago · 29 km deep · 82 km away
47. 2.5135 km SW of Adak, AlaskaSat, Jan 5, 10:49 AM HAST · 2827 days ago · 35 km deep · 90 km away
48. 2.254 km ESE of Adak, AlaskaSat, Jan 5, 11:23 AM HAST · 2827 days ago · 61 km deep · 95 km away
49. 2.4122 km WSW of Adak, AlaskaSat, Jan 5, 11:23 AM HAST · 2827 days ago · 46 km deep · 88 km away
50. 2.4123 km SW of Adak, AlaskaSat, Jan 5, 11:45 AM HAST · 2827 days ago · 28 km deep · 84 km away
51. 4.0122 km WSW of Adak, AlaskaSat, Jan 5, 3:26 PM HAST · 2826 days ago · 48 km deep · 93 km away
52. 1.8125 km SW of Adak, AlaskaSat, Jan 5, 3:38 PM HAST · 2826 days ago · 50 km deep · 86 km away
53. 3.9131 km SW of Adak, AlaskaSat, Jan 5, 4:03 PM HAST · 2826 days ago · 35 km deep · 87 km away
54. 2.3125 km WSW of Adak, AlaskaSat, Jan 5, 4:57 PM HAST · 2826 days ago · 59 km deep · 91 km away
55. 2.3129 km SW of Adak, AlaskaSat, Jan 5, 8:00 PM HAST · 2826 days ago · 26 km deep · 84 km away
56. 2.1131 km SW of Adak, AlaskaSat, Jan 5, 9:22 PM HAST · 2826 days ago · 46 km deep · 91 km away
57. 5.1124 km WSW of Adak, AlaskaSat, Jan 5, 9:25 PM HAST · 2826 days ago · 35 km deep · 87 km away
58. 2.5138 km SW of Adak, AlaskaSat, Jan 5, 11:14 PM HAST · 2826 days ago · 28 km deep · 88 km away
59. 2.394 km WSW of Adak, AlaskaSun, Jan 6, 9:15 AM HAST · 2826 days ago · 45 km deep · 92 km away
60. 2.3130 km SW of Adak, AlaskaSun, Jan 6, 1:43 PM HAST · 2826 days ago · 35 km deep · 89 km away

The first 60 of 176.

Before

1. 2.4120 km WSW of Adak, AlaskaMon, Dec 24, 3:09 PM HAST · 2838 days ago · 51 km deep · 94 km away
2. 2.063 km SE of Adak, AlaskaSun, Dec 23, 6:49 AM HAST · 2840 days ago · 30 km deep · 66 km away
3. 1.757 km SW of Adak, AlaskaSat, Dec 22, 7:16 PM HAST · 2840 days ago · 22 km deep · 46 km away
4. 1.761 km WSW of Adak, AlaskaSat, Dec 22, 5:38 AM HAST · 2841 days ago · 65 km deep · 71 km away
5. 1.9Andreanof Islands, Aleutian Islands, AlaskaFri, Dec 21, 2:02 AM HAST · 2842 days ago · 34 km deep · 62 km away
6. 1.837 km SSW of Adak, AlaskaFri, Dec 21, 1:24 AM HAST · 2842 days ago · 45 km deep · 51 km away
7. 1.937 km SSW of Adak, AlaskaThu, Dec 20, 7:28 PM HAST · 2842 days ago · 21 km deep · 52 km away
8. 2.156 km SSE of Adak, AlaskaThu, Dec 20, 3:09 PM HAST · 2842 days ago · 23 km deep · 56 km away
9. 2.9134 km SW of Adak, AlaskaThu, Dec 20, 2:19 AM HAST · 2843 days ago · 34 km deep · 92 km away
10. 1.9111 km WSW of Adak, AlaskaWed, Dec 19, 4:06 PM HAST · 2843 days ago · 46 km deep · 96 km away
11. 1.561 km SW of Adak, AlaskaTue, Dec 18, 9:00 PM HAST · 2844 days ago · 16 km deep · 57 km away
12. 3.244 km SSE of Adak, AlaskaTue, Dec 18, 2:36 PM HAST · 2844 days ago · 28 km deep · 58 km away
13. 1.797 km S of Adak, AlaskaMon, Dec 17, 11:37 PM HAST · 2845 days ago · 16 km deep · 16 km away
14. 1.899 km S of Adak, AlaskaMon, Dec 17, 11:22 PM HAST · 2845 days ago · 16 km deep · 18 km away
15. 2.0110 km WSW of Adak, AlaskaMon, Dec 17, 10:51 PM HAST · 2845 days ago · 53 km deep · 84 km away
16. 1.688 km WSW of Adak, AlaskaMon, Dec 17, 6:16 PM HAST · 2845 days ago · 30 km deep · 70 km away
17. 1.690 km WSW of Adak, AlaskaSat, Dec 15, 8:42 AM HAST · 2848 days ago · 42 km deep · 76 km away
18. 1.632 km SSW of Adak, AlaskaSat, Dec 15, 8:31 AM HAST · 2848 days ago · 38 km deep · 54 km away
19. 1.9106 km WSW of Adak, AlaskaSat, Dec 15, 4:07 AM HAST · 2848 days ago · 61 km deep · 83 km away
20. 1.736 km SSE of Adak, AlaskaFri, Dec 14, 11:11 PM HAST · 2848 days ago · 46 km deep · 57 km away

From the USGS Earthquake Hazards Program and its partner networks, event us2000jiht. Read Fri, Oct 2, 2026, 11:32 AM UTC.