M1.7 earthquake 255 km W of Adak, Alaska

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Mon, Sep 28, 2020, 4:26 PM GMT+12

UTC

2020-09-28 04:26:36 UTC

Depth

86.5 km (53.7 mi), intermediate-depth

Epicenter

51.749° N, 179.660° E

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

12

After

1. 2.0225 km W of Adak, AlaskaSun, Sep 27, 7:48 PM HADT · 2195 days ago · 90 km deep · 30 km away
2. 1.8191 km WSW of Adak, AlaskaMon, Sep 28, 6:04 AM HADT · 2194 days ago · 79 km deep · 72 km away
3. 2.5Rat Islands, Aleutian Islands, AlaskaWed, Sep 30, 11:15 AM GMT+12 · 2193 days ago · 126 km deep · 94 km away
4. 1.9212 km WSW of Adak, AlaskaWed, Sep 30, 9:03 AM HADT · 2192 days ago · 13 km deep · 83 km away
5. 2.0207 km WSW of Adak, AlaskaWed, Sep 30, 11:53 PM HADT · 2191 days ago · 25 km deep · 72 km away
6. 1.8Rat Islands, Aleutian Islands, AlaskaThu, Oct 1, 9:28 PM GMT+12 · 2191 days ago · 42 km deep · 68 km away
7. 1.8293 km WSW of Adak, AlaskaFri, Oct 2, 2:24 AM GMT+12 · 2191 days ago · 53 km deep · 48 km away
8. 2.2Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 12:48 PM GMT+12 · 2191 days ago · 65 km deep · 69 km away
9. 4.2Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 5:29 PM GMT+12 · 2191 days ago · 26 km deep · 80 km away
10. 1.7Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 5:38 PM GMT+12 · 2191 days ago · 23 km deep · 76 km away
11. 3.1Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 5:53 PM GMT+12 · 2191 days ago · 27 km deep · 80 km away
12. 1.6Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 9:36 PM GMT+12 · 2190 days ago · 21 km deep · 74 km away
13. 3.4Rat Islands, Aleutian Islands, AlaskaSat, Oct 3, 3:30 AM GMT+12 · 2190 days ago · 27 km deep · 74 km away
14. 2.6202 km WSW of Adak, AlaskaFri, Oct 2, 9:47 AM HADT · 2190 days ago · 57 km deep · 80 km away
15. 3.0Rat Islands, Aleutian Islands, AlaskaSat, Oct 3, 5:22 PM GMT+12 · 2190 days ago · 129 km deep · 87 km away
16. 4.8193 km WSW of Adak, AlaskaSat, Oct 3, 10:11 PM HADT · 2188 days ago · 40 km deep · 95 km away
17. 2.8251 km W of Adak, AlaskaSun, Oct 4, 7:47 PM GMT+12 · 2188 days ago · 110 km deep · 7 km away
18. 2.5253 km W of Adak, AlaskaSun, Oct 4, 8:27 PM GMT+12 · 2188 days ago · 110 km deep · 3 km away
19. 2.8Rat Islands, Aleutian Islands, AlaskaMon, Oct 5, 1:09 PM GMT+12 · 2188 days ago · 99 km deep · 80 km away
20. 2.1205 km W of Adak, AlaskaSun, Oct 4, 8:22 PM HADT · 2188 days ago · 71 km deep · 55 km away
21. 2.8Rat Islands, Aleutian Islands, AlaskaTue, Oct 6, 5:03 AM GMT+12 · 2187 days ago · 27 km deep · 77 km away
22. 1.6268 km W of Adak, AlaskaTue, Oct 6, 9:12 AM GMT+12 · 2187 days ago · 79 km deep · 14 km away
23. 2.5Rat Islands, Aleutian Islands, AlaskaTue, Oct 6, 4:47 PM GMT+12 · 2187 days ago · 35 km deep · 64 km away
24. 2.8Rat Islands, Aleutian Islands, AlaskaThu, Oct 8, 2:31 AM GMT+12 · 2185 days ago · 35 km deep · 93 km away
25. 2.3177 km WSW of Adak, AlaskaWed, Oct 7, 7:47 AM HADT · 2185 days ago · 63 km deep · 86 km away
26. 2.0285 km WSW of Adak, AlaskaThu, Oct 8, 4:32 PM GMT+12 · 2185 days ago · 19 km deep · 75 km away
27. 3.2218 km W of Adak, AlaskaFri, Oct 9, 7:36 PM HADT · 2183 days ago · 221 km deep · 58 km away
28. 2.1178 km WSW of Adak, AlaskaSun, Oct 11, 5:53 AM HADT · 2181 days ago · 70 km deep · 83 km away
29. 2.7237 km WSW of Adak, AlaskaSun, Oct 11, 3:07 PM HADT · 2181 days ago · 14 km deep · 84 km away
30. 2.0Rat Islands, Aleutian Islands, AlaskaTue, Oct 13, 1:51 AM GMT+12 · 2180 days ago · 93 km deep · 78 km away
31. 1.7265 km W of Adak, AlaskaWed, Oct 14, 4:34 AM GMT+12 · 2179 days ago · 63 km deep · 30 km away
32. 1.8252 km WSW of Adak, AlaskaWed, Oct 14, 12:43 PM GMT+12 · 2179 days ago · 13 km deep · 33 km away
33. 2.8282 km W of Adak, AlaskaWed, Oct 14, 5:40 PM GMT+12 · 2179 days ago · 68 km deep · 39 km away
34. 1.9Rat Islands, Aleutian Islands, AlaskaWed, Oct 14, 9:54 PM GMT+12 · 2178 days ago · 89 km deep · 70 km away
35. 1.8283 km W of Adak, AlaskaThu, Oct 15, 6:13 AM GMT+12 · 2178 days ago · 64 km deep · 37 km away
36. 2.0225 km W of Adak, AlaskaWed, Oct 14, 10:00 PM HADT · 2177 days ago · 100 km deep · 30 km away
37. 2.6Rat Islands, Aleutian Islands, AlaskaSat, Oct 17, 2:10 AM GMT+12 · 2176 days ago · 114 km deep · 95 km away
38. 2.4178 km W of Adak, AlaskaFri, Oct 16, 3:44 PM HADT · 2176 days ago · 93 km deep · 78 km away
39. 2.3Rat Islands, Aleutian Islands, AlaskaSun, Oct 18, 8:15 PM GMT+12 · 2174 days ago · 72 km deep · 67 km away
40. 1.9Rat Islands, Aleutian Islands, AlaskaMon, Oct 19, 12:43 AM GMT+12 · 2174 days ago · 78 km deep · 52 km away
41. 2.2Rat Islands, Aleutian Islands, AlaskaMon, Oct 19, 4:21 PM GMT+12 · 2174 days ago · 102 km deep · 78 km away
42. 1.8196 km WSW of Adak, AlaskaMon, Oct 19, 1:14 AM HADT · 2173 days ago · 20 km deep · 79 km away
43. 2.0Rat Islands, Aleutian Islands, AlaskaMon, Oct 19, 10:57 PM GMT+12 · 2173 days ago · 92 km deep · 63 km away
44. 3.1Rat Islands, Aleutian Islands, AlaskaSat, Oct 24, 2:08 PM GMT+12 · 2169 days ago · 126 km deep · 80 km away
45. 2.7189 km W of Adak, AlaskaFri, Oct 23, 8:27 PM HADT · 2169 days ago · 96 km deep · 71 km away
46. 2.5Rat Islands, Aleutian Islands, AlaskaSun, Oct 25, 9:59 PM GMT+12 · 2167 days ago · 127 km deep · 25 km away
47. 1.9Rat Islands, Aleutian Islands, AlaskaMon, Oct 26, 2:05 PM GMT+12 · 2167 days ago · 46 km deep · 82 km away
48. 1.8234 km WSW of Adak, AlaskaSun, Oct 25, 6:02 PM HADT · 2167 days ago · 15 km deep · 78 km away
49. 2.0218 km W of Adak, AlaskaSun, Oct 25, 11:44 PM HADT · 2166 days ago · 172 km deep · 44 km away
50. 2.5244 km WSW of Adak, AlaskaSun, Oct 25, 11:36 PM GMT-12 · 2166 days ago · 22 km deep · 78 km away
51. 2.0208 km WSW of Adak, AlaskaMon, Oct 26, 2:13 PM HADT · 2166 days ago · 13 km deep · 78 km away
52. 2.2Rat Islands, Aleutian Islands, AlaskaTue, Oct 27, 7:04 PM GMT+12 · 2165 days ago · 81 km deep · 97 km away
53. 1.5Rat Islands, Aleutian Islands, AlaskaWed, Oct 28, 3:53 AM GMT+12 · 2165 days ago · 16 km deep · 87 km away
54. 2.6265 km W of Adak, AlaskaWed, Oct 28, 4:05 AM GMT+12 · 2165 days ago · 81 km deep · 13 km away
55. 2.9240 km WSW of Adak, AlaskaTue, Oct 27, 7:51 AM GMT-12 · 2165 days ago · 18 km deep · 68 km away
56. 1.9269 km WSW of Adak, AlaskaWed, Oct 28, 12:49 PM GMT+12 · 2165 days ago · 9 km deep · 87 km away
57. 2.9202 km W of Adak, AlaskaTue, Oct 27, 5:23 PM HADT · 2165 days ago · 107 km deep · 54 km away
58. 3.1Rat Islands, Aleutian Islands, AlaskaWed, Oct 28, 7:54 PM GMT+12 · 2164 days ago · 152 km deep · 81 km away
59. 2.1202 km W of Adak, AlaskaWed, Oct 28, 4:06 PM HADT · 2164 days ago · 146 km deep · 68 km away
60. 1.8240 km W of Adak, AlaskaThu, Oct 29, 3:10 PM GMT+12 · 2164 days ago · 64 km deep · 33 km away

The first 60 of 79.

Before

1. 2.0191 km W of Adak, AlaskaSun, Sep 27, 6:09 PM HADT · 2195 days ago · 80 km deep · 65 km away
2. 2.1Andreanof Islands, Aleutian Islands, AlaskaSun, Sep 27, 12:06 AM GMT-12 · 2195 days ago · 9 km deep · 85 km away
3. 2.2Rat Islands, Aleutian Islands, AlaskaSun, Sep 27, 2:41 PM GMT+12 · 2196 days ago · 107 km deep · 75 km away
4. 2.1179 km W of Adak, AlaskaSat, Sep 26, 5:02 PM HADT · 2196 days ago · 96 km deep · 77 km away
5. 2.0231 km W of Adak, AlaskaSat, Sep 26, 3:33 PM HADT · 2196 days ago · 168 km deep · 31 km away
6. 1.8Rat Islands, Aleutian Islands, AlaskaSat, Sep 26, 7:18 PM GMT+12 · 2196 days ago · 23 km deep · 89 km away
7. 1.6297 km WSW of Adak, AlaskaSat, Sep 26, 6:26 PM GMT+12 · 2196 days ago · 19 km deep · 79 km away
8. 4.0291 km WSW of Adak, AlaskaSat, Sep 26, 3:16 PM GMT+12 · 2197 days ago · 35 km deep · 69 km away
9. 1.8298 km WSW of Adak, AlaskaSat, Sep 26, 3:11 PM GMT+12 · 2197 days ago · 18 km deep · 79 km away
10. 1.7295 km WSW of Adak, AlaskaSat, Sep 26, 2:39 PM GMT+12 · 2197 days ago · 18 km deep · 76 km away
11. 2.8Rat Islands, Aleutian Islands, AlaskaSat, Sep 26, 1:47 PM GMT+12 · 2197 days ago · 10 km deep · 95 km away
12. 1.7Rat Islands, Aleutian Islands, AlaskaSat, Sep 26, 1:45 PM GMT+12 · 2197 days ago · 28 km deep · 79 km away
13. 1.7295 km WSW of Adak, AlaskaSat, Sep 26, 12:59 PM GMT+12 · 2197 days ago · 17 km deep · 77 km away
14. 2.0299 km WSW of Adak, AlaskaSat, Sep 26, 9:58 AM GMT+12 · 2197 days ago · 19 km deep · 82 km away
15. 2.1266 km W of Adak, AlaskaFri, Sep 25, 8:30 PM GMT+12 · 2197 days ago · 163 km deep · 40 km away
16. 3.0252 km W of Adak, AlaskaFri, Sep 25, 11:48 AM GMT+12 · 2198 days ago · 177 km deep · 23 km away
17. 1.8246 km WSW of Adak, AlaskaFri, Sep 25, 5:51 AM GMT+12 · 2198 days ago · 26 km deep · 41 km away
18. 2.0213 km W of Adak, AlaskaThu, Sep 24, 7:52 AM HADT · 2198 days ago · 144 km deep · 43 km away
19. 2.0265 km W of Adak, AlaskaFri, Sep 25, 12:48 AM GMT+12 · 2198 days ago · 91 km deep · 10 km away
20. 1.8193 km WSW of Adak, AlaskaThu, Sep 24, 1:44 AM HADT · 2198 days ago · 68 km deep · 77 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak020chwps69. Read Thu, Oct 1, 2026, 5:37 PM UTC.