M1.8 earthquake 69 km SE of Atka, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Tue, Aug 18, 2020, 4:34 PM HADT

UTC

2020-08-19 01:34:58 UTC

Depth

22.5 km (14.0 mi), shallow

Epicenter

51.783° N, 173.438° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

14

After

1. 1.9129 km SE of Atka, AlaskaWed, Aug 19, 6:24 PM HADT · 2234 days ago · 21 km deep · 60 km away
2. 3.48 km ESE of Atka, AlaskaThu, Aug 20, 10:12 AM HADT · 2233 days ago · 184 km deep · 62 km away
3. 1.6116 km ESE of Atka, AlaskaThu, Aug 20, 12:20 PM HADT · 2233 days ago · 49 km deep · 60 km away
4. 1.824 km SSW of Atka, AlaskaThu, Aug 20, 6:20 PM HADT · 2233 days ago · 171 km deep · 67 km away
5. 2.5147 km ESE of Atka, AlaskaThu, Aug 20, 7:54 PM HADT · 2233 days ago · 35 km deep · 89 km away
6. 1.564 km SSE of Atka, AlaskaThu, Aug 20, 8:40 PM HADT · 2233 days ago · 3 km deep · 33 km away
7. 2.99 km WSW of Atka, AlaskaFri, Aug 21, 4:09 PM HADT · 2232 days ago · 222 km deep · 75 km away
8. 2.8Andreanof Islands, Aleutian Islands, AlaskaSat, Aug 22, 1:49 AM HADT · 2232 days ago · 205 km deep · 89 km away
9. 1.885 km SE of Atka, AlaskaSat, Aug 22, 3:56 PM HADT · 2231 days ago · 13 km deep · 18 km away
10. 2.668 km SSE of Atka, AlaskaSun, Aug 23, 2:29 AM HADT · 2231 days ago · 28 km deep · 28 km away
11. 2.214 km ENE of Atka, AlaskaSun, Aug 23, 1:15 PM HADT · 2230 days ago · 101 km deep · 64 km away
12. 1.850 km S of Atka, AlaskaMon, Aug 24, 5:06 AM HADT · 2230 days ago · 26 km deep · 62 km away
13. 3.054 km SW of Atka, AlaskaMon, Aug 24, 7:09 AM HADT · 2229 days ago · 75 km deep · 93 km away
14. 2.119 km WSW of Atka, AlaskaTue, Aug 25, 2:20 PM HADT · 2228 days ago · 5 km deep · 79 km away
15. 1.817 km W of Atka, AlaskaWed, Aug 26, 6:09 AM HADT · 2227 days ago · 99 km deep · 84 km away
16. 1.540 km SSE of Atka, AlaskaWed, Aug 26, 10:04 PM HADT · 2227 days ago · 50 km deep · 42 km away
17. 2.223 km W of Atka, AlaskaSat, Aug 29, 3:45 AM HADT · 2225 days ago · 162 km deep · 86 km away
18. 3.28 km WNW of Atka, AlaskaMon, Aug 31, 3:28 AM HADT · 2223 days ago · 195 km deep · 77 km away
19. 2.660 km S of Atka, AlaskaThu, Sep 3, 8:48 PM HADT · 2219 days ago · 35 km deep · 60 km away
20. 2.655 km SE of Atka, AlaskaThu, Sep 3, 11:10 PM HADT · 2219 days ago · 74 km deep · 15 km away
21. 1.766 km SW of Atka, AlaskaSat, Sep 5, 8:20 PM HADT · 2217 days ago · 9 km deep · 98 km away
22. 1.849 km SE of Atka, AlaskaWed, Sep 9, 3:13 AM HADT · 2214 days ago · 82 km deep · 21 km away
23. 3.721 km S of Atka, AlaskaThu, Sep 10, 6:59 AM HADT · 2212 days ago · 71 km deep · 60 km away
24. 1.979 km SSW of Atka, AlaskaSat, Sep 12, 9:56 PM HADT · 2210 days ago · 13 km deep · 88 km away
25. 2.64 km SSW of Atka, AlaskaSun, Sep 13, 6:16 AM HADT · 2209 days ago · 162 km deep · 68 km away
26. 2.942 km SE of Atka, AlaskaSun, Sep 13, 1:19 PM HADT · 2209 days ago · 98 km deep · 29 km away
27. 1.955 km ESE of Atka, AlaskaSun, Sep 13, 6:52 PM HADT · 2209 days ago · 69 km deep · 30 km away
28. 1.739 km SW of Atka, AlaskaMon, Sep 14, 1:04 PM HADT · 2208 days ago · 75 km deep · 82 km away
29. 2.940 km ESE of Atka, AlaskaMon, Sep 14, 1:05 PM HADT · 2208 days ago · 10 km deep · 36 km away
30. 1.942 km ENE of Atka, AlaskaMon, Sep 14, 8:42 PM HADT · 2208 days ago · 10 km deep · 65 km away
31. 2.2Andreanof Islands, Aleutian Islands, AlaskaFri, Sep 18, 4:21 AM HADT · 2205 days ago · 31 km deep · 10 km away
32. 2.335 km ENE of Atka, AlaskaSat, Sep 19, 1:39 AM HADT · 2204 days ago · 188 km deep · 58 km away
33. 2.660 km SSW of Atka, AlaskaSat, Sep 19, 5:02 AM HADT · 2204 days ago · 30 km deep · 80 km away
34. 1.756 km SE of Atka, AlaskaSat, Sep 19, 7:12 AM HADT · 2203 days ago · 43 km deep · 14 km away
35. 2.9116 km ESE of Atka, AlaskaSat, Sep 19, 1:02 PM HADT · 2203 days ago · 35 km deep · 49 km away
36. 3.385 km SE of Atka, AlaskaTue, Sep 22, 4:47 AM HADT · 2201 days ago · 35 km deep · 18 km away
37. 4.026 km NNW of Atka, AlaskaTue, Sep 22, 4:17 PM HADT · 2200 days ago · 122 km deep · 95 km away
38. 2.07 km NW of Atka, AlaskaWed, Sep 23, 9:36 PM HADT · 2199 days ago · 140 km deep · 77 km away
39. 2.967 km ESE of Atka, AlaskaWed, Sep 23, 10:11 PM HADT · 2199 days ago · 71 km deep · 23 km away
40. 1.583 km SSE of Atka, AlaskaFri, Sep 25, 8:26 AM HADT · 2197 days ago · 8 km deep · 47 km away
41. 1.787 km SSE of Atka, AKFri, Sep 25, 9:13 AM HADT · 2197 days ago · 39 km deep · 36 km away
42. 1.915 km WSW of Atka, AlaskaFri, Sep 25, 3:24 PM HADT · 2197 days ago · 170 km deep · 79 km away
43. 1.775 km SE of Atka, AlaskaFri, Sep 25, 4:07 PM HADT · 2197 days ago · 1 km deep · 11 km away
44. 1.95 km NW of Atka, AlaskaSat, Sep 26, 1:51 AM HADT · 2197 days ago · 152 km deep · 75 km away
45. 1.735 km SSE of Atka, AlaskaSat, Sep 26, 9:17 PM HADT · 2196 days ago · 55 km deep · 37 km away
46. 2.840 km SSW of Atka, AlaskaSun, Sep 27, 1:57 PM HADT · 2195 days ago · 76 km deep · 70 km away
47. 2.325 km S of Atka, AlaskaMon, Sep 28, 8:15 PM HADT · 2194 days ago · 145 km deep · 56 km away
48. 2.147 km ESE of Atka, AlaskaTue, Sep 29, 1:50 PM HADT · 2193 days ago · 85 km deep · 37 km away
49. 3.6100 km E of Atka, AlaskaWed, Sep 30, 10:22 PM HADT · 2192 days ago · 151 km deep · 79 km away
50. 1.7Andreanof Islands, Aleutian Islands, AlaskaFri, Oct 2, 7:12 PM HADT · 2190 days ago · 7 km deep · 83 km away
51. 1.576 km S of Atka, AlaskaFri, Oct 2, 11:19 PM HADT · 2190 days ago · 22 km deep · 67 km away
52. 2.336 km W of Atka, AlaskaSat, Oct 3, 4:23 AM HADT · 2190 days ago · 200 km deep · 100 km away
53. 1.749 km S of Atka, AlaskaSat, Oct 3, 11:05 AM HADT · 2189 days ago · 23 km deep · 46 km away
54. 2.325 km NE of Atka, AlaskaSun, Oct 4, 7:04 AM HADT · 2188 days ago · 172 km deep · 69 km away
55. 1.962 km ESE of Atka, AlaskaMon, Oct 5, 11:49 AM HADT · 2187 days ago · 53 km deep · 15 km away
56. 3.539 km ESE of Atka, AlaskaWed, Oct 7, 5:57 PM HADT · 2185 days ago · 14 km deep · 38 km away
57. 2.218 km SE of Atka, AlaskaFri, Oct 9, 7:46 AM HADT · 2183 days ago · 71 km deep · 51 km away
58. 2.154 km ESE of Atka, AlaskaSat, Oct 10, 1:18 AM HADT · 2183 days ago · 53 km deep · 20 km away
59. 1.932 km E of Atka, AlaskaSat, Oct 10, 7:22 PM HADT · 2182 days ago · 14 km deep · 53 km away
60. 1.851 km SSE of Atka, AlaskaSun, Oct 11, 7:34 AM HADT · 2181 days ago · 25 km deep · 43 km away

The first 60 of 65.

Before

1. 1.658 km SW of Atka, AlaskaMon, Aug 17, 11:03 PM HADT · 2236 days ago · 58 km deep · 97 km away
2. 2.9135 km ESE of Atka, AlaskaMon, Aug 17, 2:35 PM HADT · 2236 days ago · 140 km deep · 70 km away
3. 3.1132 km E of Atka, AlaskaMon, Aug 17, 2:05 AM HADT · 2237 days ago · 99 km deep · 89 km away
4. 2.868 km ENE of Atka, AlaskaSun, Aug 16, 5:17 PM HADT · 2237 days ago · 194 km deep · 78 km away
5. 3.0153 km SSE of Atka, AlaskaSun, Aug 16, 1:24 AM HADT · 2238 days ago · 10 km deep · 96 km away
6. 1.770 km SSW of Atka, AlaskaSat, Aug 15, 8:37 AM HADT · 2238 days ago · 26 km deep · 87 km away
7. 1.8140 km ESE of Atka, AlaskaFri, Aug 14, 12:34 PM HADT · 2239 days ago · 56 km deep · 78 km away
8. 3.128 km NW of Atka, AlaskaThu, Aug 13, 11:08 AM HADT · 2240 days ago · 230 km deep · 98 km away
9. 1.721 km ENE of Atka, AlaskaThu, Aug 13, 10:46 AM HADT · 2240 days ago · 143 km deep · 64 km away
10. 1.921 km E of Atka, AlaskaThu, Aug 13, 5:06 AM HADT · 2241 days ago · 143 km deep · 52 km away
11. 2.339 km E of Atka, AlaskaWed, Aug 12, 3:29 PM HADT · 2241 days ago · 119 km deep · 55 km away
12. 1.920 km WSW of Atka, AlaskaWed, Aug 12, 9:09 AM HADT · 2241 days ago · 164 km deep · 78 km away
13. 1.783 km SSW of Atka, AlaskaTue, Aug 11, 12:36 PM HADT · 2242 days ago · 15 km deep · 78 km away
14. 1.954 km ESE of Atka, AlaskaTue, Aug 11, 11:47 AM HADT · 2242 days ago · 73 km deep · 25 km away
15. 1.965 km SE of Atka, AlaskaTue, Aug 11, 6:33 AM HADT · 2242 days ago · 30 km deep · 4 km away
16. 2.0134 km S of Atka, AlaskaTue, Aug 11, 5:58 AM HADT · 2242 days ago · 7 km deep · 95 km away
17. 2.6105 km S of Atka, AlaskaTue, Aug 11, 2:29 AM HADT · 2243 days ago · 35 km deep · 92 km away
18. 2.352 km NE of Atka, AlaskaMon, Aug 10, 9:37 PM HADT · 2243 days ago · 157 km deep · 79 km away
19. 2.631 km W of Atka, AlaskaMon, Aug 10, 8:04 AM HADT · 2243 days ago · 35 km deep · 96 km away
20. 1.926 km SW of Atka, AlaskaMon, Aug 10, 4:13 AM HADT · 2244 days ago · 74 km deep · 72 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak020anphd1a. Read Fri, Oct 2, 2026, 1:52 AM UTC.