M2.4 earthquake 110 km SW of Adak, Alaska

Magnitude

2.4 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Wed, Feb 21, 2018, 12:55 AM HAST

UTC

2018-02-21 10:55:10 UTC

Depth

51.6 km (32.1 mi), shallow

Epicenter

51.277° N, 177.913° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

10

After

1. 2.1122 km WSW of Adak, AlaskaWed, Feb 21, 10:30 PM HAST · 3144 days ago · 38 km deep · 16 km away
2. 2.343 km S of Adak, AlaskaFri, Feb 23, 3:21 AM HAST · 3143 days ago · 40 km deep · 87 km away
3. 2.2120 km WSW of Adak, AlaskaFri, Feb 23, 8:54 PM HAST · 3142 days ago · 13 km deep · 22 km away
4. 3.7111 km SW of Adak, AlaskaFri, Feb 23, 10:54 PM HAST · 3142 days ago · 40 km deep · 1 km away
5. 2.2122 km W of Adak, AlaskaSat, Feb 24, 9:01 AM HAST · 3142 days ago · 12 km deep · 58 km away
6. 2.5128 km WSW of Adak, AlaskaSat, Feb 24, 9:25 AM HAST · 3142 days ago · 21 km deep · 44 km away
7. 2.674 km WSW of Adak, AlaskaSun, Feb 25, 11:11 AM HAST · 3141 days ago · 45 km deep · 38 km away
8. 2.7102 km SW of Adak, AlaskaSun, Feb 25, 11:43 AM HAST · 3140 days ago · 26 km deep · 11 km away
9. 2.894 km W of Adak, AlaskaSun, Feb 25, 1:45 PM HAST · 3140 days ago · 112 km deep · 72 km away
10. 2.239 km WSW of Adak, AlaskaSun, Feb 25, 11:32 PM HAST · 3140 days ago · 79 km deep · 76 km away
11. 2.261 km W of Adak, AlaskaMon, Feb 26, 1:42 AM HAST · 3140 days ago · 84 km deep · 82 km away
12. 1.9133 km WSW of Adak, AlaskaMon, Feb 26, 7:11 AM HAST · 3140 days ago · 21 km deep · 27 km away
13. 1.661 km W of Adak, AlaskaMon, Feb 26, 9:22 AM HAST · 3140 days ago · 9 km deep · 63 km away
14. 2.1119 km SW of Adak, AlaskaMon, Feb 26, 12:00 PM HAST · 3139 days ago · 3 km deep · 10 km away
15. 2.7151 km WSW of Adak, AlaskaTue, Feb 27, 9:12 AM HAST · 3139 days ago · 35 km deep · 45 km away
16. 3.7131 km WSW of Adak, AlaskaTue, Feb 27, 8:43 PM HAST · 3138 days ago · 16 km deep · 39 km away
17. 1.934 km SSW of Adak, AlaskaThu, Mar 1, 1:12 AM HAST · 3137 days ago · 13 km deep · 80 km away
18. 2.022 km WSW of Adak, AlaskaThu, Mar 1, 11:01 PM HAST · 3136 days ago · 69 km deep · 89 km away
19. 1.866 km SSW of Adak, AlaskaFri, Mar 2, 2:24 AM HAST · 3136 days ago · 21 km deep · 69 km away
20. 1.8126 km WSW of Adak, AlaskaFri, Mar 2, 2:36 AM HAST · 3136 days ago · 13 km deep · 54 km away
21. 1.9128 km W of Adak, AlaskaFri, Mar 2, 7:21 AM HAST · 3136 days ago · 16 km deep · 61 km away
22. 1.8127 km W of Adak, AlaskaFri, Mar 2, 7:22 AM HAST · 3136 days ago · 22 km deep · 70 km away
23. 2.9168 km WSW of Adak, AlaskaFri, Mar 2, 8:53 AM HAST · 3136 days ago · 40 km deep · 59 km away
24. 1.857 km S of Adak, AlaskaSat, Mar 3, 2:06 AM HAST · 3135 days ago · 23 km deep · 98 km away
25. 2.083 km WSW of Adak, AlaskaSat, Mar 3, 3:19 AM HAST · 3135 days ago · 44 km deep · 42 km away
26. 3.0117 km WSW of Adak, AlaskaSat, Mar 3, 6:18 AM HAST · 3135 days ago · 19 km deep · 40 km away
27. 2.1136 km WSW of Adak, AlaskaSat, Mar 3, 2:51 PM HAST · 3134 days ago · 26 km deep · 35 km away
28. 2.7127 km WSW of Adak, AlaskaSat, Mar 3, 11:03 PM HAST · 3134 days ago · 16 km deep · 43 km away
29. 2.3123 km WSW of Adak, AlaskaSun, Mar 4, 1:32 AM HAST · 3134 days ago · 9 km deep · 54 km away
30. 2.255 km S of Adak, AlaskaSun, Mar 4, 2:58 AM HAST · 3134 days ago · 24 km deep · 91 km away
31. 2.1156 km WSW of Adak, AlaskaSun, Mar 4, 4:29 AM HAST · 3134 days ago · 53 km deep · 53 km away
32. 2.1131 km W of Adak, AlaskaSun, Mar 4, 9:01 AM HAST · 3134 days ago · 13 km deep · 68 km away
33. 1.7122 km WSW of Adak, AlaskaSun, Mar 4, 9:11 PM HAST · 3133 days ago · 13 km deep · 51 km away
34. 1.9129 km WSW of Adak, AlaskaMon, Mar 5, 1:54 PM HAST · 3132 days ago · 43 km deep · 39 km away
35. 4.3148 km WSW of Adak, AlaskaTue, Mar 6, 1:17 PM HAST · 3131 days ago · 35 km deep · 40 km away
36. 2.4136 km WSW of Adak, AlaskaTue, Mar 6, 5:59 PM HAST · 3131 days ago · 6 km deep · 45 km away
37. 2.0127 km W of Adak, AlaskaWed, Mar 7, 3:36 AM HAST · 3131 days ago · 1 km deep · 61 km away
38. 2.6128 km WSW of Adak, AlaskaWed, Mar 7, 4:06 AM HAST · 3131 days ago · 21 km deep · 51 km away
39. 2.4131 km WSW of Adak, AlaskaWed, Mar 7, 7:30 AM HAST · 3131 days ago · 16 km deep · 35 km away
40. 4.6111 km SW of Adak, AlaskaWed, Mar 7, 5:10 PM HAST · 3130 days ago · 48 km deep · 12 km away
41. 2.4130 km W of Adak, AlaskaThu, Mar 8, 2:35 AM HAST · 3130 days ago · 15 km deep · 67 km away
42. 3.3142 km WSW of Adak, AlaskaFri, Mar 9, 6:25 AM HAST · 3129 days ago · 35 km deep · 39 km away
43. 2.8108 km SW of Adak, AlaskaSat, Mar 10, 1:31 AM HAST · 3128 days ago · 53 km deep · 4 km away
44. 2.536 km S of Adak, AlaskaSat, Mar 10, 2:08 AM HAST · 3128 days ago · 56 km deep · 99 km away
45. 2.2128 km WSW of Adak, AlaskaSat, Mar 10, 2:47 AM HAST · 3128 days ago · 37 km deep · 27 km away
46. 1.9113 km WSW of Adak, AlaskaSat, Mar 10, 5:16 AM HAST · 3128 days ago · 13 km deep · 27 km away
47. 2.136 km S of Adak, AlaskaSat, Mar 10, 8:39 AM HAST · 3128 days ago · 40 km deep · 96 km away
48. 1.6130 km W of Adak, AlaskaMon, Mar 12, 2:20 AM HADT · 3126 days ago · 5 km deep · 65 km away
49. 3.938 km SSW of Adak, AlaskaMon, Mar 12, 1:38 PM HADT · 3125 days ago · 34 km deep · 79 km away
50. 2.1127 km WSW of Adak, AlaskaMon, Mar 12, 5:51 PM HADT · 3125 days ago · 12 km deep · 56 km away
51. 1.749 km SW of Adak, AlaskaTue, Mar 13, 1:11 AM HADT · 3125 days ago · 45 km deep · 64 km away
52. 1.9122 km WSW of Adak, AlaskaTue, Mar 13, 2:47 AM HADT · 3125 days ago · 54 km deep · 50 km away
53. 2.7195 km WSW of Adak, AlaskaTue, Mar 13, 3:05 AM HADT · 3125 days ago · 22 km deep · 88 km away
54. 2.7116 km SW of Adak, AlaskaTue, Mar 13, 9:26 AM HADT · 3125 days ago · 38 km deep · 18 km away
55. 1.5126 km WSW of Adak, AlaskaTue, Mar 13, 1:42 PM HADT · 3124 days ago · 22 km deep · 56 km away
56. 1.764 km SSW of Adak, AlaskaTue, Mar 13, 1:49 PM HADT · 3124 days ago · 47 km deep · 72 km away
57. 2.0127 km W of Adak, AlaskaTue, Mar 13, 6:23 PM HADT · 3124 days ago · 14 km deep · 59 km away
58. 1.839 km SSW of Adak, AlaskaTue, Mar 13, 8:40 PM HADT · 3124 days ago · 45 km deep · 80 km away
59. 1.873 km WSW of Adak, AlaskaTue, Mar 13, 10:52 PM HADT · 3124 days ago · 43 km deep · 43 km away
60. 1.8125 km W of Adak, AlaskaWed, Mar 14, 12:43 AM HADT · 3124 days ago · 15 km deep · 60 km away

The first 60 of 141.

Before

1. 1.988 km WSW of Adak, AlaskaTue, Feb 20, 12:20 PM HAST · 3145 days ago · 13 km deep · 26 km away
2. 2.1128 km W of Adak, AlaskaMon, Feb 19, 2:36 PM HAST · 3146 days ago · 18 km deep · 62 km away
3. 1.8112 km SW of Adak, AlaskaSun, Feb 18, 2:05 AM HAST · 3148 days ago · 33 km deep · 3 km away
4. 2.0125 km W of Adak, AlaskaSat, Feb 17, 4:28 AM HAST · 3149 days ago · 16 km deep · 62 km away
5. 2.5124 km SW of Adak, AlaskaSat, Feb 17, 2:12 AM HAST · 3149 days ago · 31 km deep · 19 km away
6. 1.8124 km W of Adak, AlaskaFri, Feb 16, 3:26 AM HAST · 3150 days ago · 7 km deep · 61 km away
7. 2.8118 km SW of Adak, AlaskaThu, Feb 15, 11:52 PM HAST · 3150 days ago · 35 km deep · 10 km away
8. 2.0110 km WSW of Adak, AlaskaThu, Feb 15, 9:53 PM HAST · 3150 days ago · 13 km deep · 31 km away
9. 5.222 km SSW of Adak, AlaskaThu, Feb 15, 2:00 PM HAST · 3150 days ago · 51 km deep · 91 km away · felt by 1 · tsunami flag
10. 2.472 km W of Adak, AlaskaWed, Feb 14, 8:33 PM HAST · 3151 days ago · 73 km deep · 63 km away
11. 2.6129 km WSW of Adak, AlaskaWed, Feb 14, 8:25 AM HAST · 3152 days ago · 35 km deep · 26 km away
12. 2.263 km SSW of Adak, AlaskaTue, Feb 13, 11:19 PM HAST · 3152 days ago · 36 km deep · 62 km away
13. 2.285 km SW of Adak, AlaskaTue, Feb 13, 2:38 AM HAST · 3153 days ago · 35 km deep · 25 km away
14. 3.2187 km WSW of Adak, AlaskaMon, Feb 12, 6:46 PM HAST · 3153 days ago · 18 km deep · 85 km away
15. 2.653 km SSW of Adak, AlaskaMon, Feb 12, 2:29 AM HAST · 3154 days ago · 45 km deep · 63 km away
16. 2.368 km SSW of Adak, AlaskaMon, Feb 12, 12:30 AM HAST · 3154 days ago · 44 km deep · 56 km away
17. 2.3126 km WSW of Adak, AlaskaSun, Feb 11, 7:57 PM HAST · 3154 days ago · 31 km deep · 33 km away
18. 1.985 km SSW of Adak, AlaskaSun, Feb 11, 4:54 PM HAST · 3154 days ago · 45 km deep · 58 km away
19. 1.9128 km W of Adak, AlaskaSun, Feb 11, 7:38 AM HAST · 3155 days ago · 13 km deep · 59 km away
20. 1.8129 km WSW of Adak, AlaskaSat, Feb 10, 4:24 PM HAST · 3155 days ago · 14 km deep · 56 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0182e686xe (also filed as ak18476848). Read Fri, Oct 2, 2026, 8:55 AM UTC.