M5.1 earthquake 114 km SE of Perryville, Alaska

Magnitude

5.1 (ml), moderate

Local time

Wed, Jul 28, 2021, 10:20 PM AKDT

UTC

2021-07-29 06:20:44 UTC

Depth

35.0 km (21.7 mi), shallow

Epicenter

55.222° N, 157.795° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 5.1 km horizontally, 2.0 km in depth

Magnitude uncertainty

±0.12

Depth from

Operator assigned

Station coverage gap

162°

Stations used

18

• Sand Point, AlaskaPopulation 1,064. Forecast172 kmE

After

1. 5.799 km ESE of Chignik, AlaskaWed, Jul 28, 10:23 PM AKDT · 1883 days ago · 35 km deep · 89 km away
2. 5.9127 km SE of Chignik, AlaskaWed, Jul 28, 10:23 PM AKDT · 1883 days ago · 1 km deep · 41 km away · felt by 14
3. 4.2159 km SE of Chignik, AlaskaWed, Jul 28, 10:27 PM AKDT · 1883 days ago · 20 km deep · 70 km away
4. 4.5106 km SSE of Chignik, AlaskaWed, Jul 28, 10:28 PM AKDT · 1883 days ago · 9 km deep · 29 km away
5. 5.3128 km SE of Perryville, AlaskaWed, Jul 28, 10:28 PM AKDT · 1883 days ago · 35 km deep · 14 km away
6. 3.9118 km SE of Perryville, AlaskaWed, Jul 28, 10:31 PM AKDT · 1883 days ago · 7 km deep · 12 km away
7. 5.4154 km SE of Chignik, AlaskaWed, Jul 28, 10:32 PM AKDT · 1883 days ago · 3 km deep · 65 km away · felt by 5
8. 4.291 km SSE of Chignik, AlaskaWed, Jul 28, 10:35 PM AKDT · 1883 days ago · 7 km deep · 35 km away
9. 4.5136 km SE of Perryville, AlaskaWed, Jul 28, 10:36 PM AKDT · 1883 days ago · 25 km deep · 28 km away
10. 4.1113 km ESE of Chignik, AlaskaWed, Jul 28, 10:37 PM AKDT · 1883 days ago · 46 km deep · 81 km away
11. 4.3147 km SE of Chignik, AlaskaWed, Jul 28, 10:38 PM AKDT · 1883 days ago · 38 km deep · 55 km away
12. 4.8158 km SE of Perryville, AlaskaWed, Jul 28, 10:39 PM AKDT · 1883 days ago · 34 km deep · 46 km away
13. 3.4131 km SE of Chignik, AlaskaWed, Jul 28, 10:40 PM AKDT · 1883 days ago · 10 km deep · 51 km away
14. 3.7126 km SE of Chignik, AlaskaWed, Jul 28, 10:43 PM AKDT · 1883 days ago · 24 km deep · 56 km away
15. 4.5142 km SE of Perryville, AlaskaWed, Jul 28, 10:45 PM AKDT · 1883 days ago · 25 km deep · 29 km away
16. 4.8135 km SE of Perryville, AlaskaWed, Jul 28, 10:47 PM AKDT · 1883 days ago · 26 km deep · 23 km away · felt by 7
17. 3.7172 km SE of Chignik, AlaskaWed, Jul 28, 10:50 PM AKDT · 1883 days ago · 11 km deep · 90 km away
18. 2.562 km SE of Perryville, AlaskaWed, Jul 28, 10:52 PM AKDT · 1883 days ago · 11 km deep · 52 km away
19. 4.2142 km SE of Chignik, AlaskaWed, Jul 28, 10:53 PM AKDT · 1883 days ago · 42 km deep · 73 km away
20. 3.7113 km SSE of Perryville, AlaskaWed, Jul 28, 10:54 PM AKDT · 1883 days ago · 40 km deep · 39 km away
21. 4.3157 km SE of Chignik, AlaskaWed, Jul 28, 10:57 PM AKDT · 1883 days ago · 25 km deep · 53 km away
22. 3.8156 km SE of Chignik, AlaskaWed, Jul 28, 10:58 PM AKDT · 1883 days ago · 27 km deep · 96 km away
23. 3.1131 km ESE of Chignik, AlaskaWed, Jul 28, 11:01 PM AKDT · 1883 days ago · 21 km deep · 96 km away
24. 3.4126 km SE of Chignik, AlaskaWed, Jul 28, 11:03 PM AKDT · 1883 days ago · 43 km deep · 37 km away
25. 3.094 km SSE of Perryville, AlaskaWed, Jul 28, 11:09 PM AKDT · 1883 days ago · 9 km deep · 43 km away
26. 3.9105 km SSE of Perryville, AlaskaWed, Jul 28, 11:11 PM AKDT · 1883 days ago · 19 km deep · 49 km away · felt by 1
27. 3.3154 km SE of Chignik, AlaskaWed, Jul 28, 11:13 PM AKDT · 1883 days ago · 4 km deep · 68 km away
28. 3.5167 km SE of Chignik, AlaskaWed, Jul 28, 11:15 PM AKDT · 1883 days ago · 14 km deep · 91 km away
29. 3.294 km SSE of Perryville, AlaskaWed, Jul 28, 11:18 PM AKDT · 1883 days ago · 7 km deep · 40 km away
30. 3.4116 km SSE of Perryville, AlaskaWed, Jul 28, 11:20 PM AKDT · 1883 days ago · 16 km deep · 28 km away
31. 3.9141 km SE of Chignik, AlaskaWed, Jul 28, 11:21 PM AKDT · 1883 days ago · 25 km deep · 79 km away
32. 4.1131 km SE of Chignik, AlaskaWed, Jul 28, 11:22 PM AKDT · 1883 days ago · 34 km deep · 56 km away · felt by 1
33. 3.2106 km SSE of Perryville, AlaskaWed, Jul 28, 11:27 PM AKDT · 1883 days ago · 8 km deep · 34 km away
34. 4.3164 km SE of Chignik, AlaskaWed, Jul 28, 11:31 PM AKDT · 1883 days ago · 20 km deep · 69 km away
35. 4.5154 km SE of Perryville, AlaskaWed, Jul 28, 11:32 PM AKDT · 1883 days ago · 12 km deep · 40 km away · felt by 1
36. 3.9160 km SE of Chignik, AlaskaWed, Jul 28, 11:33 PM AKDT · 1883 days ago · 20 km deep · 93 km away
37. 3.1165 km SE of Chignik, AlaskaWed, Jul 28, 11:38 PM AKDT · 1883 days ago · 7 km deep · 67 km away
38. 2.668 km S of Ivanof Bay, AlaskaWed, Jul 28, 11:41 PM AKDT · 1883 days ago · 35 km deep · 97 km away
39. 3.0119 km SSE of Perryville, AlaskaWed, Jul 28, 11:41 PM AKDT · 1883 days ago · 14 km deep · 43 km away
40. 2.8157 km SE of Perryville, AlaskaWed, Jul 28, 11:44 PM AKDT · 1883 days ago · 40 km deep · 47 km away
41. 3.8122 km SSE of Perryville, AlaskaWed, Jul 28, 11:46 PM AKDT · 1883 days ago · 10 km deep · 51 km away
42. 3.2Alaska PeninsulaWed, Jul 28, 11:47 PM AKDT · 1883 days ago · 5 km deep · 27 km away
43. 4.4134 km SSE of Chignik, AlaskaWed, Jul 28, 11:50 PM AKDT · 1883 days ago · 27 km deep · 29 km away
44. 3.6131 km SE of Perryville, AlaskaWed, Jul 28, 11:51 PM AKDT · 1883 days ago · 69 km deep · 18 km away
45. 3.7137 km SE of Chignik, AlaskaWed, Jul 28, 11:54 PM AKDT · 1883 days ago · 25 km deep · 89 km away
46. 3.9135 km SE of Perryville, AlaskaWed, Jul 28, 11:58 PM AKDT · 1883 days ago · 26 km deep · 21 km away
47. 4.1107 km SE of Perryville, AlaskaWed, Jul 28, 11:58 PM AKDT · 1883 days ago · 36 km deep · 9 km away
48. 3.9142 km SE of Perryville, AlaskaThu, Jul 29, 12:02 AM AKDT · 1883 days ago · 23 km deep · 28 km away
49. 2.7104 km SSE of Perryville, AlaskaThu, Jul 29, 12:05 AM AKDT · 1883 days ago · 10 km deep · 44 km away
50. 3.0147 km SE of Chignik, AlaskaThu, Jul 29, 12:06 AM AKDT · 1883 days ago · 24 km deep · 61 km away
51. 4.1135 km SE of Chignik, AlaskaThu, Jul 29, 12:08 AM AKDT · 1883 days ago · 27 km deep · 49 km away
52. 4.6155 km SSE of Chignik, AlaskaThu, Jul 29, 12:09 AM AKDT · 1883 days ago · 19 km deep · 50 km away
53. 3.0106 km SE of Chignik, AlaskaThu, Jul 29, 12:12 AM AKDT · 1883 days ago · 6 km deep · 63 km away
54. 3.2100 km SE of Perryville, AlaskaThu, Jul 29, 12:12 AM AKDT · 1883 days ago · 10 km deep · 15 km away
55. 3.5199 km SE of Chignik, AlaskaThu, Jul 29, 12:13 AM AKDT · 1883 days ago · 10 km deep · 89 km away
56. 3.2Alaska PeninsulaThu, Jul 29, 12:13 AM AKDT · 1883 days ago · 3 km deep · 41 km away
57. 4.2145 km SE of Chignik, AlaskaThu, Jul 29, 12:15 AM AKDT · 1883 days ago · 18 km deep · 60 km away
58. 4.2149 km SE of Chignik, AlaskaThu, Jul 29, 12:15 AM AKDT · 1883 days ago · 28 km deep · 63 km away
59. 3.4147 km SE of Perryville, AlaskaThu, Jul 29, 12:17 AM AKDT · 1883 days ago · 3 km deep · 43 km away
60. 3.3122 km SE of Chignik, AlaskaThu, Jul 29, 12:24 AM AKDT · 1883 days ago · 28 km deep · 39 km away

The first 60 of at least 200.

Before

1. 5.5106 km SSE of Perryville, AlaskaWed, Jul 28, 10:19 PM AKDT · 1883 days ago · 18 km deep · 31 km away · felt by 3
2. 8.22021 Chignik, Alaska EarthquakeWed, Jul 28, 10:15 PM AKDT · 1883 days ago · 35 km deep · 17 km away · felt by 512 · PAGER yellow · tsunami flag
3. 2.487 km SE of Perryville, AlaskaWed, Jul 21, 9:09 PM AKDT · 1890 days ago · 15 km deep · 28 km away
4. 2.243 km S of Chignik, AlaskaTue, Jul 20, 11:01 AM AKDT · 1892 days ago · 48 km deep · 83 km away
5. 2.1151 km SSE of Perryville, AlaskaMon, Jul 19, 2:37 PM AKDT · 1893 days ago · 34 km deep · 68 km away
6. 2.8139 km SSE of Perryville, AlaskaSun, Jul 18, 7:58 AM AKDT · 1894 days ago · 7 km deep · 48 km away
7. 2.188 km ESE of Chignik, AlaskaSat, Jul 17, 5:56 PM AKDT · 1894 days ago · 25 km deep · 97 km away
8. 2.1117 km SSE of Perryville, AlaskaSat, Jul 17, 12:16 AM AKDT · 1895 days ago · 33 km deep · 55 km away
9. 2.575 km SSE of Perryville, AlaskaFri, Jul 16, 5:01 PM AKDT · 1896 days ago · 32 km deep · 47 km away
10. 3.467 km SE of Perryville, AlaskaThu, Jul 15, 9:48 PM AKDT · 1896 days ago · 5 km deep · 48 km away
11. 2.6119 km SSE of Perryville, AlaskaWed, Jul 14, 5:02 PM AKDT · 1898 days ago · 21 km deep · 55 km away
12. 2.8135 km SE of Chignik, AlaskaWed, Jul 14, 10:15 AM AKDT · 1898 days ago · 28 km deep · 40 km away
13. 2.1196 km SE of Perryville, AlaskaTue, Jul 13, 6:11 AM AKDT · 1899 days ago · 27 km deep · 82 km away
14. 2.4150 km SE of Perryville, AlaskaThu, Jul 8, 4:31 PM AKDT · 1904 days ago · 20 km deep · 42 km away
15. 2.8125 km SE of Perryville, AlaskaTue, Jul 6, 10:43 AM AKDT · 1906 days ago · 35 km deep · 12 km away
16. 3.3141 km SE of Perryville, AlaskaMon, Jul 5, 11:30 PM AKDT · 1906 days ago · 1 km deep · 29 km away
17. 2.272 km SE of Perryville, AlaskaMon, Jul 5, 3:34 PM AKDT · 1907 days ago · 4 km deep · 42 km away

From the USGS Earthquake Hazards Program and its partner networks, event us6000f03q. Read Thu, Sep 24, 2026, 1:23 PM UTC.