M1.8 earthquake 242 km WSW of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Thu, Jul 27, 2023, 11:40 PM GMT-12

UTC

2023-07-28 11:40:07 UTC

Depth

12.9 km (8.0 mi), shallow

Epicenter

51.080° N, 179.888° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

18

After

1. 1.5163 km WSW of Adak, AlaskaFri, Jul 28, 3:36 AM HADT · 1161 days ago · 13 km deep · 82 km away
2. 1.9148 km WSW of Adak, AlaskaFri, Jul 28, 9:07 AM HADT · 1161 days ago · 28 km deep · 100 km away
3. 1.8179 km W of Adak, AlaskaFri, Jul 28, 12:53 PM HADT · 1161 days ago · 85 km deep · 95 km away
4. 1.9211 km WSW of Adak, AlaskaSat, Jul 29, 10:21 PM HADT · 1160 days ago · 26 km deep · 33 km away
5. 2.8183 km WSW of Adak, AlaskaSun, Jul 30, 4:34 AM HADT · 1159 days ago · 31 km deep · 63 km away
6. 1.8Rat Islands, Aleutian Islands, AlaskaMon, Jul 31, 2:36 AM GMT+12 · 1159 days ago · 39 km deep · 86 km away
7. 1.7Rat Islands, Aleutian Islands, AlaskaMon, Jul 31, 4:40 AM GMT+12 · 1159 days ago · 66 km deep · 90 km away
8. 1.7265 km W of Adak, AlaskaMon, Jul 31, 5:47 AM GMT+12 · 1159 days ago · 82 km deep · 93 km away
9. 2.2224 km W of Adak, AlaskaSun, Jul 30, 1:41 PM HADT · 1159 days ago · 14 km deep · 88 km away
10. 1.8194 km WSW of Adak, AlaskaSun, Jul 30, 3:39 PM HADT · 1159 days ago · 22 km deep · 48 km away
11. 1.9246 km WSW of Adak, AlaskaTue, Aug 1, 12:47 PM GMT+12 · 1158 days ago · 21 km deep · 32 km away
12. 1.9238 km WSW of Adak, AlaskaTue, Aug 1, 3:10 PM GMT-12 · 1157 days ago · 21 km deep · 36 km away
13. 3.3155 km WSW of Adak, AlaskaWed, Aug 2, 8:54 AM HADT · 1156 days ago · 31 km deep · 93 km away
14. 2.6247 km SW of Adak, AlaskaWed, Aug 2, 11:12 PM GMT-12 · 1155 days ago · 39 km deep · 83 km away
15. 2.7192 km W of Adak, AlaskaThu, Aug 3, 4:14 AM HADT · 1155 days ago · 105 km deep · 89 km away
16. 3.6182 km WSW of Adak, AlaskaSat, Aug 5, 6:56 AM HADT · 1153 days ago · 35 km deep · 60 km away
17. 2.1184 km WSW of Adak, AlaskaSat, Aug 5, 7:53 AM HADT · 1153 days ago · 22 km deep · 58 km away
18. 2.9Rat Islands, Aleutian Islands, AlaskaSun, Aug 6, 3:21 PM GMT+12 · 1153 days ago · 63 km deep · 95 km away
19. 2.2Andreanof Islands, Aleutian Islands, AlaskaSun, Aug 6, 2:17 PM GMT-12 · 1152 days ago · 13 km deep · 10 km away
20. 2.0211 km WSW of Adak, AlaskaSun, Aug 6, 7:35 PM HADT · 1152 days ago · 42 km deep · 39 km away
21. 1.9254 km WSW of Adak, AlaskaTue, Aug 8, 10:04 AM GMT+12 · 1151 days ago · 14 km deep · 12 km away
22. 1.6259 km W of Adak, AlaskaTue, Aug 8, 12:26 PM GMT+12 · 1151 days ago · 60 km deep · 54 km away
23. 1.8240 km WSW of Adak, AlaskaWed, Aug 9, 4:03 AM GMT+12 · 1150 days ago · 66 km deep · 47 km away
24. 1.9Rat Islands, Aleutian Islands, AlaskaWed, Aug 9, 5:38 AM GMT+12 · 1150 days ago · 57 km deep · 87 km away
25. 2.7Rat Islands, Aleutian Islands, AlaskaWed, Aug 9, 1:08 PM GMT+12 · 1150 days ago · 20 km deep · 100 km away
26. 1.8Rat Islands, Aleutian Islands, AlaskaWed, Aug 9, 1:11 PM GMT+12 · 1150 days ago · 13 km deep · 100 km away
27. 1.9164 km WSW of Adak, AlaskaWed, Aug 9, 4:41 PM HADT · 1149 days ago · 17 km deep · 78 km away
28. 2.1192 km WSW of Adak, AlaskaWed, Aug 9, 7:54 PM HADT · 1149 days ago · 68 km deep · 63 km away
29. 1.5178 km W of Adak, AlaskaThu, Aug 10, 8:06 AM HADT · 1148 days ago · 9 km deep · 78 km away
30. 1.9233 km WSW of Adak, AlaskaThu, Aug 10, 9:54 AM HADT · 1148 days ago · 16 km deep · 9 km away
31. 1.8161 km W of Adak, AlaskaThu, Aug 10, 2:37 PM HADT · 1148 days ago · 111 km deep · 100 km away
32. 2.3244 km WSW of Adak, AlaskaFri, Aug 11, 3:40 AM GMT-12 · 1147 days ago · 26 km deep · 6 km away
33. 1.8187 km WSW of Adak, AlaskaFri, Aug 11, 7:18 AM HADT · 1147 days ago · 24 km deep · 56 km away
34. 1.7166 km W of Adak, AlaskaFri, Aug 11, 7:07 PM HADT · 1147 days ago · 8 km deep · 95 km away
35. 2.0258 km WSW of Adak, AlaskaSat, Aug 12, 11:43 PM GMT+12 · 1146 days ago · 5 km deep · 44 km away
36. 1.8Rat Islands, Aleutian Islands, AlaskaSun, Aug 13, 2:44 AM GMT+12 · 1146 days ago · 51 km deep · 89 km away
37. 2.9Rat Islands, Aleutian Islands, AlaskaSun, Aug 13, 7:11 AM GMT+12 · 1146 days ago · 28 km deep · 80 km away
38. 1.6Rat Islands, Aleutian Islands, AlaskaSun, Aug 13, 8:26 AM GMT+12 · 1146 days ago · 20 km deep · 80 km away
39. 1.6241 km WSW of Adak, AlaskaSat, Aug 12, 10:00 AM GMT-12 · 1146 days ago · 13 km deep · 25 km away
40. 2.1211 km W of Adak, AlaskaSat, Aug 12, 1:08 PM HADT · 1146 days ago · 143 km deep · 98 km away
41. 1.8196 km WSW of Adak, AlaskaSun, Aug 13, 12:34 AM HADT · 1145 days ago · 39 km deep · 47 km away
42. 1.5197 km W of Adak, AlaskaSun, Aug 13, 2:07 AM HADT · 1145 days ago · 13 km deep · 80 km away
43. 1.9202 km W of Adak, AlaskaSun, Aug 13, 2:48 AM HADT · 1145 days ago · 78 km deep · 66 km away
44. 2.2212 km WSW of Adak, AlaskaSun, Aug 13, 5:31 AM HADT · 1145 days ago · 55 km deep · 43 km away
45. 1.6150 km WSW of Adak, AlaskaSun, Aug 13, 6:39 AM HADT · 1145 days ago · 25 km deep · 92 km away
46. 2.7Rat Islands, Aleutian Islands, AlaskaMon, Aug 14, 7:33 AM GMT+12 · 1145 days ago · 5 km deep · 95 km away
47. 3.1291 km W of Adak, AlaskaMon, Aug 14, 11:51 AM GMT+12 · 1145 days ago · 86 km deep · 98 km away
48. 1.9159 km SW of Adak, AlaskaMon, Aug 14, 5:39 AM HADT · 1144 days ago · 18 km deep · 93 km away
49. 2.1242 km W of Adak, AlaskaTue, Aug 15, 3:11 AM GMT+12 · 1144 days ago · 156 km deep · 89 km away
50. 1.9Andreanof Islands, Aleutian Islands, AlaskaMon, Aug 14, 2:30 PM HADT · 1144 days ago · 14 km deep · 48 km away
51. 3.0261 km WSW of Adak, AlaskaTue, Aug 15, 3:09 PM GMT+12 · 1144 days ago · 28 km deep · 31 km away
52. 2.0230 km W of Adak, AlaskaTue, Aug 15, 2:26 AM HADT · 1143 days ago · 102 km deep · 83 km away
53. 1.9230 km WSW of Adak, AlaskaTue, Aug 15, 10:07 AM HADT · 1143 days ago · 13 km deep · 30 km away
54. 1.6Rat Islands, Aleutian Islands, AlaskaWed, Aug 16, 8:59 AM GMT+12 · 1143 days ago · 25 km deep · 99 km away
55. 1.8287 km WSW of Adak, AlaskaWed, Aug 16, 4:38 PM GMT+12 · 1143 days ago · 6 km deep · 49 km away
56. 1.6189 km WSW of Adak, AlaskaTue, Aug 15, 10:50 PM HADT · 1142 days ago · 64 km deep · 61 km away
57. 1.7186 km WSW of Adak, AlaskaWed, Aug 16, 11:30 AM HADT · 1142 days ago · 25 km deep · 59 km away
58. 1.9275 km WSW of Adak, AlaskaFri, Aug 18, 1:23 AM GMT+12 · 1141 days ago · 20 km deep · 34 km away
59. 2.8264 km W of Adak, AlaskaFri, Aug 18, 2:00 AM GMT+12 · 1141 days ago · 154 km deep · 100 km away
60. 2.6296 km W of Adak, AlaskaFri, Aug 18, 3:01 AM GMT+12 · 1141 days ago · 59 km deep · 85 km away

The first 60 of 187.

Before

1. 2.0235 km WSW of Adak, AlaskaThu, Jul 27, 7:42 PM HADT · 1162 days ago · 13 km deep · 38 km away
2. 2.6252 km WSW of Adak, AlaskaFri, Jul 28, 4:27 PM GMT+12 · 1162 days ago · 10 km deep · 29 km away
3. 2.2241 km WSW of Adak, AlaskaThu, Jul 27, 12:01 PM GMT-12 · 1162 days ago · 8 km deep · 8 km away
4. 1.5238 km WSW of Adak, AlaskaThu, Jul 27, 9:34 AM GMT-12 · 1162 days ago · 13 km deep · 36 km away
5. 1.5235 km WSW of Adak, AlaskaThu, Jul 27, 11:11 AM HADT · 1162 days ago · 13 km deep · 37 km away
6. 1.8208 km W of Adak, AlaskaThu, Jul 27, 9:52 AM HADT · 1162 days ago · 88 km deep · 80 km away
7. 1.7186 km WSW of Adak, AlaskaWed, Jul 26, 9:03 PM HADT · 1163 days ago · 23 km deep · 58 km away
8. 2.7220 km WSW of Adak, AlaskaWed, Jul 26, 8:15 AM HADT · 1163 days ago · 35 km deep · 25 km away
9. 1.7178 km W of Adak, AlaskaWed, Jul 26, 7:05 AM HADT · 1163 days ago · 7 km deep · 87 km away
10. 2.1Andreanof Islands, Aleutian Islands, AlaskaTue, Jul 25, 7:28 AM HADT · 1164 days ago · 86 km deep · 75 km away
11. 3.0Rat Islands, Aleutian Islands, AlaskaTue, Jul 25, 10:40 PM GMT+12 · 1164 days ago · 35 km deep · 85 km away
12. 3.6191 km WSW of Adak, AlaskaMon, Jul 24, 10:17 PM HADT · 1165 days ago · 27 km deep · 52 km away
13. 2.8198 km WSW of Adak, AlaskaMon, Jul 24, 9:22 AM HADT · 1165 days ago · 35 km deep · 49 km away
14. 2.0210 km W of Adak, AlaskaSun, Jul 23, 7:11 PM HADT · 1166 days ago · 83 km deep · 62 km away
15. 2.7243 km WSW of Adak, AlaskaMon, Jul 24, 7:35 AM GMT+12 · 1166 days ago · 65 km deep · 28 km away
16. 2.0291 km WSW of Adak, AlaskaMon, Jul 24, 7:09 AM GMT+12 · 1166 days ago · 17 km deep · 51 km away
17. 2.9Rat Islands, Aleutian Islands, AlaskaMon, Jul 24, 4:17 AM GMT+12 · 1166 days ago · 27 km deep · 62 km away
18. 2.5157 km WSW of Adak, AlaskaSat, Jul 22, 11:44 PM HADT · 1166 days ago · 35 km deep · 92 km away
19. 3.8Rat Islands, Aleutian Islands, AlaskaSun, Jul 23, 5:10 PM GMT+12 · 1167 days ago · 48 km deep · 100 km away
20. 2.0Rat Islands, Aleutian Islands, AlaskaSun, Jul 23, 10:42 AM GMT+12 · 1167 days ago · 9 km deep · 75 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0239lu3w2b. Read Thu, Oct 1, 2026, 6:51 PM UTC.