M2.3 earthquake 69 km E of Atka, Alaska

Magnitude

2.3 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Thu, Feb 20, 2020, 11:01 PM HAST

UTC

2020-02-21 09:01:05 UTC

Depth

100.1 km (62.2 mi), intermediate-depth

Epicenter

52.281° N, 173.200° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

18

After

1. 3.253 km S of Atka, AlaskaSat, Feb 22, 2:32 PM HAST · 2414 days ago · 35 km deep · 92 km away
2. 3.571 km E of Atka, AlaskaSat, Feb 22, 10:30 PM HAST · 2414 days ago · 10 km deep · 13 km away
3. 1.718 km SW of Atka, AlaskaThu, Feb 27, 8:55 AM HAST · 2409 days ago · 71 km deep · 86 km away
4. 2.842 km SSE of Atka, AlaskaFri, Feb 28, 8:58 PM HAST · 2408 days ago · 59 km deep · 64 km away
5. 2.496 km SSE of Atka, AlaskaMon, Mar 2, 10:03 PM HAST · 2405 days ago · 25 km deep · 99 km away
6. 3.4110 km ENE of Atka, AlaskaSun, Mar 8, 3:41 AM HADT · 2399 days ago · 223 km deep · 43 km away
7. 2.677 km NE of Atka, AlaskaWed, Mar 11, 1:32 PM HADT · 2396 days ago · 10 km deep · 55 km away
8. 3.367 km E of Atka, AlaskaFri, Mar 13, 3:26 PM HADT · 2394 days ago · 195 km deep · 19 km away
9. 1.924 km WNW of Atka, AlaskaFri, Mar 13, 7:30 PM HADT · 2394 days ago · 76 km deep · 91 km away
10. 3.023 km WSW of Atka, AlaskaMon, Mar 16, 11:09 AM HADT · 2391 days ago · 184 km deep · 91 km away
11. 1.718 km ESE of Atka, AlaskaMon, Mar 16, 9:13 PM HADT · 2391 days ago · 73 km deep · 53 km away
12. 1.811 km N of Atka, AlaskaFri, Mar 20, 6:20 PM HADT · 2387 days ago · 4 km deep · 68 km away
13. 3.038 km NNW of Atka, AlaskaSat, Mar 21, 12:10 AM HADT · 2387 days ago · 227 km deep · 86 km away
14. 2.976 km SSE of Atka, AlaskaMon, Mar 23, 6:25 PM HADT · 2384 days ago · 35 km deep · 77 km away
15. 2.245 km NNW of Atka, AlaskaWed, Mar 25, 2:11 PM HADT · 2382 days ago · 190 km deep · 91 km away
16. 1.936 km SSE of Atka, AlaskaThu, Mar 26, 8:27 PM HADT · 2381 days ago · 7 km deep · 67 km away
17. 2.633 km S of Atka, AlaskaFri, Mar 27, 7:27 PM HADT · 2380 days ago · 84 km deep · 82 km away
18. 4.253 km NNW of Atka, AlaskaSat, Mar 28, 1:34 AM HADT · 2380 days ago · 203 km deep · 89 km away
19. 2.122 km N of Atka, AlaskaSat, Mar 28, 5:05 AM HADT · 2379 days ago · 162 km deep · 66 km away
20. 2.322 km NNW of Atka, AlaskaSun, Mar 29, 1:22 PM HADT · 2378 days ago · 98 km deep · 80 km away
21. 2.8130 km ESE of Atka, AlaskaMon, Mar 30, 4:49 PM HADT · 2377 days ago · 35 km deep · 74 km away
22. 3.766 km SE of Atka, AlaskaTue, Mar 31, 1:33 PM HADT · 2376 days ago · 36 km deep · 63 km away
23. 2.377 km N of Atka, AlaskaWed, Apr 1, 4:28 PM HADT · 2375 days ago · 166 km deep · 87 km away
24. 3.824 km SE of Atka, AlaskaWed, Apr 1, 10:05 PM HADT · 2375 days ago · 191 km deep · 62 km away
25. 1.731 km SW of Atka, AlaskaThu, Apr 2, 2:19 PM HADT · 2374 days ago · 68 km deep · 96 km away
26. 2.832 km ESE of Atka, AlaskaSun, Apr 5, 6:34 AM HADT · 2371 days ago · 189 km deep · 40 km away
27. 3.130 km W of Atka, AlaskaMon, Apr 6, 12:34 AM HADT · 2371 days ago · 218 km deep · 99 km away
28. 2.973 km SE of Atka, AlaskaTue, Apr 7, 1:50 AM HADT · 2370 days ago · 35 km deep · 51 km away
29. 3.987 km SSE of Atka, AlaskaTue, Apr 7, 1:48 PM HADT · 2369 days ago · 27 km deep · 95 km away
30. 3.181 km E of Atka, AlaskaSun, Apr 12, 10:14 AM HADT · 2364 days ago · 106 km deep · 13 km away
31. 1.817 km NW of Atka, AlaskaMon, Apr 13, 4:46 PM HADT · 2363 days ago · 9 km deep · 82 km away
32. 2.965 km ESE of Atka, AlaskaTue, Apr 14, 5:48 AM HADT · 2362 days ago · 60 km deep · 24 km away
33. 2.013 km N of Atka, AlaskaWed, Apr 15, 11:35 AM HADT · 2361 days ago · 4 km deep · 70 km away
34. 2.334 km NNE of Atka, AlaskaThu, Apr 16, 5:40 PM HADT · 2360 days ago · 118 km deep · 57 km away
35. 2.424 km NW of Atka, AlaskaFri, Apr 17, 8:20 AM HADT · 2359 days ago · 171 km deep · 84 km away
36. 2.655 km S of Atka, AlaskaFri, Apr 17, 3:30 PM HADT · 2359 days ago · 35 km deep · 90 km away

Before

1. 2.031 km S of Atka, AlaskaThu, Feb 20, 6:50 PM HAST · 2416 days ago · 61 km deep · 81 km away
2. 1.840 km SSW of Atka, AlaskaSun, Feb 16, 10:24 PM HAST · 2420 days ago · 66 km deep · 99 km away
3. 2.7103 km ENE of Atka, AlaskaSat, Feb 15, 10:28 PM HAST · 2421 days ago · 117 km deep · 37 km away
4. 2.422 km ESE of Atka, AlaskaSat, Feb 15, 9:38 PM HAST · 2421 days ago · 170 km deep · 49 km away
5. 3.094 km E of Atka, AlaskaThu, Feb 13, 9:34 PM HAST · 2423 days ago · 112 km deep · 33 km away
6. 2.338 km ESE of Atka, AlaskaThu, Feb 13, 4:17 PM HAST · 2423 days ago · 6 km deep · 43 km away
7. 2.335 km ESE of Atka, AlaskaThu, Feb 13, 4:09 PM HAST · 2423 days ago · 6 km deep · 46 km away
8. 1.838 km SSW of Atka, AlaskaTue, Feb 11, 1:22 PM HAST · 2425 days ago · 26 km deep · 96 km away
9. 2.031 km ESE of Atka, AlaskaSun, Feb 9, 5:30 PM HAST · 2427 days ago · 15 km deep · 48 km away
10. 2.886 km SE of Atka, AlaskaThu, Feb 6, 5:17 PM HAST · 2430 days ago · 20 km deep · 75 km away
11. 2.036 km SSE of Atka, AlaskaWed, Feb 5, 6:13 PM HAST · 2431 days ago · 21 km deep · 69 km away
12. 2.389 km ESE of Atka, AlaskaMon, Feb 3, 6:04 PM HAST · 2433 days ago · 41 km deep · 48 km away
13. 3.225 km WNW of Atka, AlaskaThu, Jan 30, 2:57 AM HAST · 2437 days ago · 226 km deep · 92 km away
14. 2.284 km SE of Atka, AKTue, Jan 28, 3:57 PM HAST · 2439 days ago · 12 km deep · 81 km away
15. 3.744 km ENE of Atka, AlaskaFri, Jan 24, 12:48 PM HAST · 2443 days ago · 179 km deep · 27 km away
16. 2.571 km NNE of Atka, AlaskaWed, Jan 22, 12:21 AM HAST · 2446 days ago · 165 km deep · 81 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0202e5b6as. Read Fri, Oct 2, 2026, 11:55 PM UTC.