M2.5 earthquake 16 km NNE of Atka, Alaska

Magnitude

2.5 (ml), micro

Local time

Thu, Oct 29, 2020, 3:10 PM HADT

UTC

2020-10-30 00:10:30 UTC

Depth

3.5 km (2.2 mi), shallow

Epicenter

52.336° N, 174.145° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.7 km in depth

Magnitude uncertainty

±0.25

Depth from

From location

Station coverage gap

74°

Stations used

8

After

1. 2.013 km SE of Atka, AlaskaSat, Oct 31, 5:42 PM HADT · 2159 days ago · 98 km deep · 25 km away
2. 2.043 km W of Atka, AlaskaTue, Nov 3, 1:28 AM HAST · 2157 days ago · 95 km deep · 51 km away
3. 1.660.7 km NE of Atka, AKTue, Nov 3, 9:55 PM HAST · 2156 days ago · 47 km deep · 74 km away
4. 2.352 km SE of Atka, AlaskaWed, Nov 4, 11:54 AM HAST · 2155 days ago · 115 km deep · 62 km away
5. 2.49 km ESE of Atka, AlaskaSat, Nov 7, 11:37 AM HAST · 2152 days ago · 158 km deep · 20 km away
6. 2.933 km NNE of Atka, AlaskaWed, Nov 11, 2:49 PM HAST · 2148 days ago · 218 km deep · 17 km away
7. 2.943 km WSW of Atka, AlaskaWed, Nov 11, 4:40 PM HAST · 2148 days ago · 247 km deep · 54 km away
8. 3.520 km ENE of Atka, AlaskaWed, Nov 11, 5:39 PM HAST · 2148 days ago · 159 km deep · 17 km away
9. 2.230 km SSW of Atka, AlaskaThu, Nov 12, 3:58 AM HAST · 2148 days ago · 61 km deep · 47 km away
10. 3.272 km ESE of Atka, AlaskaFri, Nov 13, 11:38 AM HAST · 2146 days ago · 100 km deep · 75 km away
11. 3.669 km SSW of Atka, AlaskaSun, Nov 15, 6:44 AM HAST · 2145 days ago · 25 km deep · 85 km away
12. 2.883 km SSW of Atka, AlaskaMon, Nov 16, 11:14 PM HAST · 2143 days ago · 28 km deep · 99 km away
13. 1.974 km SW of Atka, AlaskaThu, Nov 19, 2:17 PM HAST · 2140 days ago · 22 km deep · 88 km away
14. 1.667 km WSW of Atka, AlaskaSat, Nov 21, 3:30 PM HAST · 2138 days ago · 69 km deep · 77 km away
15. 2.056 km SSW of Atka, AlaskaMon, Nov 23, 5:18 AM HAST · 2137 days ago · 23 km deep · 71 km away
16. 2.563 km WSW of Atka, AlaskaTue, Nov 24, 10:52 PM HAST · 2135 days ago · 57 km deep · 76 km away
17. 2.079 km E of Adak, AlaskaSat, Nov 28, 3:17 PM HAST · 2131 days ago · 81 km deep · 100 km away
18. 3.056 km SSW of Atka, AlaskaMon, Nov 30, 2:37 PM HAST · 2129 days ago · 33 km deep · 72 km away
19. 3.373 km SE of Atka, AlaskaMon, Nov 30, 2:40 PM HAST · 2129 days ago · 14 km deep · 84 km away
20. 1.783 km SW of Atka, AlaskaWed, Dec 2, 9:14 PM HAST · 2127 days ago · 38 km deep · 97 km away
21. 2.974 km SW of Atka, AlaskaThu, Dec 3, 6:40 PM HAST · 2126 days ago · 63 km deep · 87 km away
22. 2.631 km N of Atka, AlaskaFri, Dec 4, 8:31 AM HAST · 2126 days ago · 170 km deep · 16 km away
23. 2.862 km S of Atka, AlaskaFri, Dec 4, 9:58 AM HAST · 2126 days ago · 35 km deep · 78 km away
24. 3.0Andreanof Islands, Aleutian Islands, AlaskaSun, Dec 6, 3:38 PM HAST · 2123 days ago · 12 km deep · 100 km away
25. 2.786 km E of Atka, AlaskaFri, Dec 11, 6:59 AM HAST · 2119 days ago · 112 km deep · 86 km away
26. 4.562 km N of Atka, AlaskaSun, Dec 13, 9:06 AM HAST · 2117 days ago · 182 km deep · 47 km away
27. 1.944 km SSE of Atka, AlaskaMon, Dec 14, 1:15 AM HAST · 2116 days ago · 25 km deep · 59 km away
28. 1.784 km SW of Atka, AlaskaMon, Dec 14, 7:33 AM HAST · 2116 days ago · 27 km deep · 97 km away
29. 3.048 km SSW of Atka, AlaskaMon, Dec 14, 10:06 AM HAST · 2116 days ago · 49 km deep · 64 km away
30. 1.643 km SSE of Atka, AlaskaMon, Dec 14, 10:13 AM HAST · 2116 days ago · 25 km deep · 58 km away
31. 1.931 km SSE of Atka, AlaskaTue, Dec 15, 10:27 AM HAST · 2115 days ago · 17 km deep · 44 km away
32. 2.735 km S of Atka, AlaskaTue, Dec 15, 9:42 PM HAST · 2114 days ago · 192 km deep · 51 km away
33. 4.647 km WSW of Atka, AlaskaThu, Dec 17, 6:32 AM HAST · 2113 days ago · 81 km deep · 59 km away · felt by 1
34. 2.874 km SSW of Atka, AlaskaThu, Dec 17, 6:43 AM HAST · 2113 days ago · 35 km deep · 90 km away
35. 2.722 km WSW of Atka, AlaskaThu, Dec 17, 11:12 AM HAST · 2113 days ago · 214 km deep · 34 km away
36. 2.866 km SSW of Atka, AlaskaFri, Dec 18, 4:05 AM HAST · 2112 days ago · 24 km deep · 82 km away
37. 1.925 km SSE of Atka, AlaskaFri, Dec 18, 6:53 PM HAST · 2111 days ago · 71 km deep · 40 km away
38. 3.137 km ESE of Atka, AlaskaFri, Dec 18, 9:39 PM HAST · 2111 days ago · 128 km deep · 43 km away
39. 2.056 km S of Atka, AlaskaSat, Dec 19, 2:26 AM HAST · 2111 days ago · 24 km deep · 71 km away
40. 3.1Andreanof Islands, Aleutian Islands, AlaskaSat, Dec 19, 8:40 AM HAST · 2111 days ago · 128 km deep · 76 km away
41. 3.666 km E of Atka, AlaskaTue, Dec 22, 4:56 PM HAST · 2107 days ago · 102 km deep · 64 km away
42. 2.181 km SW of Atka, AlaskaSat, Dec 26, 1:44 PM HAST · 2103 days ago · 26 km deep · 95 km away
43. 2.9Andreanof Islands, Aleutian Islands, AlaskaMon, Dec 28, 4:40 AM HAST · 2102 days ago · 175 km deep · 25 km away

Before

1. 2.755 km NNW of Atka, AlaskaWed, Oct 28, 9:47 PM HADT · 2162 days ago · 183 km deep · 42 km away
2. 1.640 km ESE of Atka, AlaskaWed, Oct 28, 7:32 PM HADT · 2162 days ago · 78 km deep · 43 km away
3. 1.534 km SE of Atka, AlaskaTue, Oct 27, 4:09 PM HADT · 2163 days ago · 12 km deep · 46 km away
4. 3.057 km ESE of Atka, AlaskaMon, Oct 26, 3:52 PM HADT · 2164 days ago · 76 km deep · 61 km away
5. 2.373 km W of Atka, AlaskaMon, Oct 26, 2:24 PM HADT · 2164 days ago · 239 km deep · 80 km away
6. 1.930 km W of Atka, AlaskaMon, Oct 26, 12:37 PM HADT · 2164 days ago · 199 km deep · 36 km away
7. 1.819 km NW of Atka, AlaskaMon, Oct 26, 7:01 AM HADT · 2165 days ago · 188 km deep · 18 km away
8. 1.723 km WNW of Atka, AlaskaMon, Oct 26, 3:16 AM HADT · 2165 days ago · 148 km deep · 24 km away
9. 2.934 km N of Atka, AlaskaSat, Oct 24, 8:23 AM HADT · 2167 days ago · 193 km deep · 20 km away
10. 2.841 km ENE of Atka, AlaskaSat, Oct 24, 2:19 AM HADT · 2167 days ago · 166 km deep · 33 km away
11. 3.071 km ESE of Atka, AlaskaWed, Oct 21, 1:26 AM HADT · 2170 days ago · 15 km deep · 76 km away
12. 1.615 km NW of Atka, AlaskaTue, Oct 20, 12:14 PM HADT · 2171 days ago · 180 km deep · 14 km away
13. 2.921 km S of Atka, AlaskaSat, Oct 17, 4:03 PM HADT · 2173 days ago · 195 km deep · 37 km away
14. 1.826 km SW of Atka, AlaskaSat, Oct 17, 3:27 AM HADT · 2174 days ago · 72 km deep · 42 km away
15. 1.986 km ENE of Adak, AlaskaSat, Oct 17, 12:03 AM HADT · 2174 days ago · 113 km deep · 92 km away
16. 1.737 km SW of Atka, AlaskaMon, Oct 12, 10:43 PM HADT · 2178 days ago · 64 km deep · 52 km away
17. 2.926 km WNW of Atka, AlaskaMon, Oct 12, 12:57 AM HADT · 2179 days ago · 195 km deep · 26 km away
18. 3.945 km SE of Atka, AlaskaSun, Oct 11, 11:05 PM HADT · 2179 days ago · 20 km deep · 55 km away
19. 2.588 km NE of Adak, AlaskaSun, Oct 11, 2:00 PM HADT · 2179 days ago · 167 km deep · 100 km away
20. 1.851 km SSE of Atka, AlaskaSun, Oct 11, 7:34 AM HADT · 2180 days ago · 25 km deep · 66 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91011018. Read Wed, Sep 30, 2026, 9:03 AM UTC.