M1.7 earthquake 265 km W of Adak, Alaska

Magnitude

1.7 (ml), micro

Local time

Sat, Sep 12, 2020, 6:12 AM GMT+12

UTC

2020-09-11 18:12:58 UTC

Depth

9.9 km (6.2 mi), shallow

Epicenter

51.884° N, 179.511° E

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.1 km horizontally, 1.4 km in depth

Magnitude uncertainty

±0.24

Depth from

From location

Station coverage gap

289°, poorly surrounded by stations

Stations used

5

After

1. 3.0Rat Islands, Aleutian Islands, AlaskaSat, Sep 12, 6:42 PM GMT+12 · 2207 days ago · 144 km deep · 98 km away
2. 3.1Rat Islands, Aleutian Islands, AlaskaSun, Sep 13, 12:06 AM GMT+12 · 2207 days ago · 85 km deep · 64 km away
3. 2.5268 km W of Adak, AlaskaMon, Sep 14, 9:16 PM GMT+12 · 2205 days ago · 110 km deep · 8 km away
4. 3.0260 km W of Adak, AlaskaTue, Sep 15, 1:29 PM GMT+12 · 2204 days ago · 123 km deep · 15 km away
5. 1.7269 km W of Adak, AlaskaWed, Sep 16, 4:16 AM GMT+12 · 2203 days ago · 64 km deep · 44 km away
6. 2.9259 km W of Adak, AlaskaWed, Sep 16, 11:12 AM GMT+12 · 2203 days ago · 189 km deep · 8 km away
7. 2.0Rat Islands, Aleutian Islands, AlaskaThu, Sep 17, 7:55 AM GMT+12 · 2202 days ago · 59 km deep · 57 km away
8. 2.1Rat Islands, Aleutian Islands, AlaskaFri, Sep 18, 6:22 AM GMT+12 · 2201 days ago · 79 km deep · 58 km away
9. 2.6Rat Islands, Aleutian Islands, AlaskaFri, Sep 18, 2:44 PM GMT+12 · 2201 days ago · 159 km deep · 89 km away
10. 1.8206 km W of Adak, AlaskaFri, Sep 18, 6:37 AM HADT · 2200 days ago · 85 km deep · 66 km away
11. 1.8246 km WSW of Adak, AlaskaSat, Sep 19, 1:46 PM GMT+12 · 2200 days ago · 45 km deep · 80 km away
12. 2.0Rat Islands, Aleutian Islands, AlaskaSat, Sep 19, 5:08 PM GMT+12 · 2200 days ago · 97 km deep · 59 km away
13. 2.1Rat Islands, Aleutian Islands, AlaskaSat, Sep 19, 9:37 PM GMT+12 · 2200 days ago · 49 km deep · 86 km away
14. 1.7213 km WSW of Adak, AlaskaSat, Sep 19, 1:51 AM HADT · 2200 days ago · 52 km deep · 71 km away
15. 3.4217 km WSW of Adak, AlaskaSat, Sep 19, 4:07 PM HADT · 2199 days ago · 10 km deep · 85 km away
16. 2.9201 km WSW of Adak, AlaskaTue, Sep 22, 12:11 AM HADT · 2197 days ago · 74 km deep · 79 km away
17. 1.9295 km WSW of Adak, AlaskaWed, Sep 23, 4:40 AM GMT+12 · 2196 days ago · 50 km deep · 59 km away
18. 2.0Rat Islands, Aleutian Islands, AlaskaWed, Sep 23, 2:30 PM GMT+12 · 2196 days ago · 25 km deep · 93 km away
19. 2.6203 km W of Adak, AlaskaWed, Sep 23, 4:38 AM HADT · 2195 days ago · 228 km deep · 73 km away
20. 3.7240 km WSW of Adak, AlaskaThu, Sep 24, 7:58 AM GMT+12 · 2195 days ago · 19 km deep · 55 km away
21. 1.8244 km WSW of Adak, AlaskaThu, Sep 24, 8:20 AM GMT+12 · 2195 days ago · 26 km deep · 52 km away
22. 1.6241 km WSW of Adak, AlaskaThu, Sep 24, 8:56 AM GMT+12 · 2195 days ago · 13 km deep · 54 km away
23. 1.6Rat Islands, Aleutian Islands, AlaskaThu, Sep 24, 1:18 PM GMT+12 · 2195 days ago · 40 km deep · 68 km away
24. 1.8193 km WSW of Adak, AlaskaThu, Sep 24, 1:44 AM HADT · 2195 days ago · 68 km deep · 93 km away
25. 2.0265 km W of Adak, AlaskaFri, Sep 25, 12:48 AM GMT+12 · 2195 days ago · 91 km deep · 11 km away
26. 2.0213 km W of Adak, AlaskaThu, Sep 24, 7:52 AM HADT · 2194 days ago · 144 km deep · 52 km away
27. 1.8246 km WSW of Adak, AlaskaFri, Sep 25, 5:51 AM GMT+12 · 2194 days ago · 26 km deep · 59 km away
28. 3.0252 km W of Adak, AlaskaFri, Sep 25, 11:48 AM GMT+12 · 2194 days ago · 177 km deep · 15 km away
29. 2.1266 km W of Adak, AlaskaFri, Sep 25, 8:30 PM GMT+12 · 2194 days ago · 163 km deep · 24 km away
30. 2.0299 km WSW of Adak, AlaskaSat, Sep 26, 9:58 AM GMT+12 · 2193 days ago · 19 km deep · 94 km away
31. 1.7295 km WSW of Adak, AlaskaSat, Sep 26, 12:59 PM GMT+12 · 2193 days ago · 17 km deep · 89 km away
32. 1.7Rat Islands, Aleutian Islands, AlaskaSat, Sep 26, 1:45 PM GMT+12 · 2193 days ago · 28 km deep · 85 km away
33. 1.7295 km WSW of Adak, AlaskaSat, Sep 26, 2:39 PM GMT+12 · 2193 days ago · 18 km deep · 87 km away
34. 1.8298 km WSW of Adak, AlaskaSat, Sep 26, 3:11 PM GMT+12 · 2193 days ago · 18 km deep · 90 km away
35. 4.0291 km WSW of Adak, AlaskaSat, Sep 26, 3:16 PM GMT+12 · 2193 days ago · 35 km deep · 81 km away
36. 1.6297 km WSW of Adak, AlaskaSat, Sep 26, 6:26 PM GMT+12 · 2193 days ago · 19 km deep · 91 km away
37. 1.8Rat Islands, Aleutian Islands, AlaskaSat, Sep 26, 7:18 PM GMT+12 · 2193 days ago · 23 km deep · 92 km away
38. 2.0231 km W of Adak, AlaskaSat, Sep 26, 3:33 PM HADT · 2192 days ago · 168 km deep · 34 km away
39. 2.1179 km W of Adak, AlaskaSat, Sep 26, 5:02 PM HADT · 2192 days ago · 96 km deep · 89 km away
40. 2.2Rat Islands, Aleutian Islands, AlaskaSun, Sep 27, 2:41 PM GMT+12 · 2192 days ago · 107 km deep · 67 km away
41. 2.0191 km W of Adak, AlaskaSun, Sep 27, 6:09 PM HADT · 2191 days ago · 80 km deep · 78 km away
42. 1.7255 km W of Adak, AlaskaMon, Sep 28, 4:26 PM GMT+12 · 2191 days ago · 87 km deep · 18 km away
43. 2.0225 km W of Adak, AlaskaSun, Sep 27, 7:48 PM HADT · 2191 days ago · 90 km deep · 43 km away
44. 1.8191 km WSW of Adak, AlaskaMon, Sep 28, 6:04 AM HADT · 2190 days ago · 79 km deep · 87 km away
45. 2.6Rat Islands, Aleutian Islands, AlaskaTue, Sep 29, 4:51 PM GMT+12 · 2190 days ago · 146 km deep · 91 km away
46. 2.5Rat Islands, Aleutian Islands, AlaskaWed, Sep 30, 11:15 AM GMT+12 · 2189 days ago · 126 km deep · 87 km away
47. 2.0207 km WSW of Adak, AlaskaWed, Sep 30, 11:53 PM HADT · 2188 days ago · 25 km deep · 89 km away
48. 1.8Rat Islands, Aleutian Islands, AlaskaThu, Oct 1, 9:28 PM GMT+12 · 2188 days ago · 42 km deep · 70 km away
49. 1.8293 km WSW of Adak, AlaskaFri, Oct 2, 2:24 AM GMT+12 · 2187 days ago · 53 km deep · 55 km away
50. 2.2Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 12:48 PM GMT+12 · 2187 days ago · 65 km deep · 62 km away
51. 4.2Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 5:29 PM GMT+12 · 2187 days ago · 26 km deep · 87 km away
52. 1.7Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 5:38 PM GMT+12 · 2187 days ago · 23 km deep · 85 km away
53. 3.1Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 5:53 PM GMT+12 · 2187 days ago · 27 km deep · 88 km away
54. 1.6Rat Islands, Aleutian Islands, AlaskaFri, Oct 2, 9:36 PM GMT+12 · 2187 days ago · 21 km deep · 83 km away
55. 3.4Rat Islands, Aleutian Islands, AlaskaSat, Oct 3, 3:30 AM GMT+12 · 2186 days ago · 27 km deep · 81 km away
56. 2.6202 km WSW of Adak, AlaskaFri, Oct 2, 9:47 AM HADT · 2186 days ago · 57 km deep · 97 km away
57. 3.0Rat Islands, Aleutian Islands, AlaskaSat, Oct 3, 5:22 PM GMT+12 · 2186 days ago · 129 km deep · 77 km away
58. 2.8251 km W of Adak, AlaskaSun, Oct 4, 7:47 PM GMT+12 · 2185 days ago · 110 km deep · 16 km away
59. 2.5253 km W of Adak, AlaskaSun, Oct 4, 8:27 PM GMT+12 · 2185 days ago · 110 km deep · 21 km away
60. 2.8Rat Islands, Aleutian Islands, AlaskaMon, Oct 5, 1:09 PM GMT+12 · 2184 days ago · 99 km deep · 70 km away

The first 60 of 106.

Before

1. 3.0Rat Islands, Aleutian Islands, AlaskaFri, Sep 11, 4:48 PM GMT+12 · 2208 days ago · 146 km deep · 96 km away
2. 2.2216 km W of Adak, AlaskaThu, Sep 10, 5:23 PM HADT · 2208 days ago · 99 km deep · 50 km away
3. 3.0259 km W of Adak, AlaskaThu, Sep 10, 4:19 PM GMT+12 · 2209 days ago · 146 km deep · 6 km away
4. 2.9Rat Islands, Aleutian Islands, AlaskaThu, Sep 10, 8:41 AM GMT+12 · 2209 days ago · 137 km deep · 91 km away
5. 2.5Rat Islands, Aleutian Islands, AlaskaWed, Sep 9, 9:52 PM GMT+12 · 2210 days ago · 111 km deep · 69 km away
6. 2.0251 km WSW of Adak, AlaskaWed, Sep 9, 8:03 PM GMT+12 · 2210 days ago · 58 km deep · 54 km away
7. 2.1Rat Islands, Aleutian Islands, AlaskaWed, Sep 9, 11:28 AM GMT+12 · 2210 days ago · 66 km deep · 55 km away
8. 2.6277 km WSW of Adak, AlaskaWed, Sep 9, 6:09 AM GMT+12 · 2210 days ago · 31 km deep · 84 km away
9. 2.2206 km W of Adak, AlaskaTue, Sep 8, 7:47 AM HADT · 2210 days ago · 162 km deep · 64 km away
10. 1.7239 km WSW of Adak, AlaskaTue, Sep 8, 12:54 AM GMT-12 · 2211 days ago · 18 km deep · 90 km away
11. 1.7250 km WSW of Adak, AlaskaTue, Sep 8, 5:51 AM GMT+12 · 2211 days ago · 70 km deep · 49 km away
12. 2.7261 km W of Adak, AlaskaMon, Sep 7, 2:56 PM GMT+12 · 2212 days ago · 156 km deep · 4 km away
13. 1.7277 km W of Adak, AlaskaMon, Sep 7, 8:45 AM GMT+12 · 2212 days ago · 79 km deep · 31 km away
14. 2.2238 km WSW of Adak, AlaskaSun, Sep 6, 6:54 AM GMT-12 · 2212 days ago · 15 km deep · 92 km away
15. 2.2262 km W of Adak, AlaskaSat, Sep 5, 9:12 PM GMT+12 · 2214 days ago · 82 km deep · 15 km away
16. 3.4Rat Islands, Aleutian Islands, AlaskaSat, Sep 5, 9:07 AM GMT+12 · 2214 days ago · 97 km deep · 73 km away
17. 2.1Rat Islands, Aleutian Islands, AlaskaThu, Sep 3, 10:46 PM GMT+12 · 2216 days ago · 116 km deep · 61 km away
18. 3.2232 km WSW of Adak, AlaskaTue, Sep 1, 9:43 PM HADT · 2217 days ago · 15 km deep · 76 km away
19. 4.0235 km WSW of Adak, AlaskaTue, Sep 1, 6:00 PM HADT · 2217 days ago · 19 km deep · 78 km away
20. 2.4238 km WSW of Adak, AlaskaMon, Aug 31, 11:59 PM GMT-12 · 2218 days ago · 11 km deep · 99 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91123421. Read Mon, Sep 28, 2026, 12:54 AM UTC.