M1.7 earthquake 123 km E of McCarthy, Alaska

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Thu, Aug 20, 2026, 10:40 AM AKDT

UTC

2026-08-20 18:40:47 UTC

Depth

0.4 km (0.2 mi), shallow

Epicenter

61.549° N, 140.608° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.8 km horizontally, 4.4 km in depth

Magnitude uncertainty

±0.10

Station coverage gap

85°

Stations used

12

• Yakutat, AlaskaPopulation 662. Forecast228 kmNNW
• Whitehorse, CanadaPopulation 28,201. Forecast312 kmWNW
• Anchorage, AlaskaPopulation 289,600. Forecast496 kmE

After

1. 2.0100 km E of McCarthy, AlaskaSat, Aug 22, 10:33 PM AKDT · 40 days ago · 6 km deep · 24 km away
2. 1.6158 km ESE of McCarthy, AlaskaSun, Aug 23, 1:16 AM AKDT · 40 days ago · 3 km deep · 53 km away
3. 1.6152 km SSE of Alcan Border, AlaskaSun, Aug 23, 7:53 AM AKDT · 39 days ago · 6 km deep · 33 km away
4. 1.6159 km ESE of McCarthy, AlaskaThu, Aug 27, 12:18 PM AKDT · 35 days ago · 8 km deep · 67 km away
5. 1.6152 km E of McCarthy, AlaskaFri, Aug 28, 3:56 AM AKDT · 35 days ago · 7 km deep · 38 km away
6. 2.097 km ESE of McCarthy, AlaskaFri, Aug 28, 11:43 PM AKDT · 34 days ago · 1 km deep · 55 km away
7. 1.698 km ESE of McCarthy, AlaskaSat, Aug 29, 1:32 AM AKDT · 34 days ago · 14 km deep · 57 km away
8. 1.996 km E of McCarthy, AlaskaSat, Aug 29, 11:32 PM AKDT · 33 days ago · 11 km deep · 32 km away
9. 1.8146 km NNW of Yakutat, AlaskaSun, Aug 30, 2:24 AM AKDT · 33 days ago · 3 km deep · 82 km away
10. 1.8160 km E of McCarthy, AlaskaMon, Aug 31, 12:26 PM AKDT · 31 days ago · 2 km deep · 44 km away
11. 2.6157 km ESE of McCarthy, AlaskaTue, Sep 1, 12:24 PM AKDT · 30 days ago · 5 km deep · 67 km away
12. 1.9156 km N of Yakutat, AlaskaTue, Sep 1, 1:53 PM AKDT · 30 days ago · 4 km deep · 73 km away
13. 1.8153 km E of McCarthy, AlaskaTue, Sep 1, 7:38 PM AKDT · 30 days ago · 1 km deep · 35 km away
14. 1.670 km E of McCarthy, AlaskaWed, Sep 2, 6:29 PM AKDT · 29 days ago · 3 km deep · 53 km away
15. 1.8141 km ESE of McCarthy, AlaskaSun, Sep 6, 11:01 PM AKDT · 25 days ago · 1 km deep · 43 km away
16. 1.8140 km NNW of Yakutat, AlaskaMon, Sep 7, 7:33 AM AKDT · 24 days ago · 20 km deep · 89 km away
17. 1.8152 km E of McCarthy, AlaskaTue, Sep 8, 10:07 PM AKDT · 23 days ago · 0 km deep · 38 km away
18. 1.782 km ENE of McCarthy, AlaskaThu, Sep 10, 3:48 AM AKDT · 22 days ago · 12 km deep · 45 km away
19. 1.5159 km E of McCarthy, AlaskaSat, Sep 12, 5:54 PM AKDT · 19 days ago · 5 km deep · 52 km away
20. 1.5127 km ESE of McCarthy, AlaskaTue, Sep 15, 10:19 AM AKDT · 16 days ago · 3 km deep · 41 km away
21. 2.1125 km E of McCarthy, AlaskaTue, Sep 15, 2:11 PM AKDT · 16 days ago · 5 km deep · 25 km away
22. 1.7159 km ESE of McCarthy, AlaskaThu, Sep 17, 3:40 AM AKDT · 15 days ago · 5 km deep · 55 km away
23. 1.8159 km ESE of McCarthy, AlaskaThu, Sep 17, 6:41 PM AKDT · 14 days ago · 5 km deep · 54 km away
24. 1.7159 km ESE of McCarthy, AlaskaThu, Sep 17, 6:49 PM AKDT · 14 days ago · 2 km deep · 54 km away
25. 1.5158 km ESE of McCarthy, AlaskaFri, Sep 18, 5:55 AM AKDT · 14 days ago · 12 km deep · 53 km away
26. 2.6126 km E of McCarthy, AlaskaFri, Sep 18, 3:30 PM AKDT · 13 days ago · 5 km deep · 9 km away
27. 1.6105 km E of McCarthy, AlaskaTue, Sep 22, 3:56 AM AKDT · 10 days ago · 5 km deep · 24 km away
28. 1.6142 km NNW of Yakutat, AlaskaTue, Sep 22, 4:12 AM AKDT · 10 days ago · 20 km deep · 87 km away
29. 2.8160 km ESE of McCarthy, AlaskaTue, Sep 22, 4:45 AM AKDT · 10 days ago · 5 km deep · 59 km away
30. 1.8159 km ESE of McCarthy, AlaskaTue, Sep 22, 10:57 AM AKDT · 9 days ago · 4 km deep · 57 km away
31. 2.2103 km E of McCarthy, AlaskaWed, Sep 23, 8:09 PM AKDT · 8 days ago · 7 km deep · 29 km away
32. 1.7119 km E of McCarthy, AlaskaThu, Sep 24, 2:17 AM AKDT · 8 days ago · 11 km deep · 14 km away
33. 2.9159 km ESE of McCarthy, AlaskaThu, Sep 24, 6:14 AM AKDT · 7 days ago · 5 km deep · 58 km away
34. 1.591 km ESE of McCarthy, AlaskaFri, Sep 25, 9:12 AM AKDT · 6 days ago · 17 km deep · 48 km away
35. 1.790 km ESE of McCarthy, AlaskaFri, Sep 25, 9:46 AM AKDT · 6 days ago · 6 km deep · 47 km away
36. 1.592 km ESE of McCarthy, AlaskaFri, Sep 25, 9:47 AM AKDT · 6 days ago · 12 km deep · 49 km away

Before

1. 2.4115 km ESE of McCarthy, AlaskaMon, Aug 17, 11:31 AM AKDT · 45 days ago · 5 km deep · 53 km away
2. 2.3114 km ESE of McCarthy, AlaskaMon, Aug 17, 11:30 AM AKDT · 45 days ago · 5 km deep · 50 km away
3. 2.6190 km NNE of Yakutat, AlaskaSun, Aug 16, 6:46 AM AKDT · 46 days ago · 10 km deep · 89 km away
4. 1.5156 km ESE of McCarthy, AlaskaSat, Aug 15, 1:22 PM AKDT · 47 days ago · 5 km deep · 67 km away
5. 2.4123 km E of McCarthy, AlaskaSat, Aug 15, 10:02 AM AKDT · 47 days ago · 5 km deep · 7 km away
6. 1.8124 km E of McCarthy, AlaskaSat, Aug 15, 10:00 AM AKDT · 47 days ago · 6 km deep · 7 km away
7. 1.7123 km E of McCarthy, AlaskaSat, Aug 15, 8:01 AM AKDT · 47 days ago · 3 km deep · 6 km away
8. 2.369 km S of Alcan Border, AlaskaThu, Aug 13, 7:36 PM AKDT · 49 days ago · 5 km deep · 60 km away
9. 1.6122 km ESE of McCarthy, AlaskaThu, Aug 13, 11:08 AM AKDT · 49 days ago · 4 km deep · 36 km away
10. 1.6144 km E of McCarthy, AlaskaWed, Aug 12, 10:38 AM AKDT · 50 days ago · 6 km deep · 24 km away
11. 1.9159 km ESE of McCarthy, AlaskaTue, Aug 11, 8:17 PM AKDT · 51 days ago · 9 km deep · 67 km away
12. 2.0106 km E of McCarthy, AlaskaTue, Aug 11, 8:57 AM AKDT · 51 days ago · 2 km deep · 18 km away
13. 2.1107 km E of McCarthy, AlaskaMon, Aug 10, 5:32 PM AKDT · 52 days ago · 7 km deep · 16 km away
14. 1.6157 km ESE of McCarthy, AlaskaFri, Aug 7, 10:26 AM AKDT · 55 days ago · 4 km deep · 62 km away
15. 1.8157 km ESE of McCarthy, AlaskaFri, Aug 7, 3:52 AM AKDT · 56 days ago · 5 km deep · 63 km away
16. 1.5130 km E of McCarthy, AlaskaTue, Aug 4, 1:40 PM AKDT · 58 days ago · 5 km deep · 10 km away
17. 2.0157 km ESE of McCarthy, AlaskaSat, Aug 1, 7:19 PM AKDT · 61 days ago · 8 km deep · 67 km away
18. 1.9151 km E of McCarthy, AlaskaSat, Aug 1, 4:44 PM AKDT · 61 days ago · 5 km deep · 31 km away
19. 2.1153 km ESE of McCarthy, AlaskaFri, Jul 31, 7:35 AM AKDT · 62 days ago · 3 km deep · 58 km away
20. 1.8129 km ESE of McCarthy, AlaskaTue, Jul 28, 5:47 PM AKDT · 65 days ago · 2 km deep · 42 km away

From the USGS Earthquake Hazards Program and its partner networks, event aka2026qmclca. Read Fri, Oct 2, 2026, 1:37 AM UTC.