M1.7 earthquake 29 km WSW of Hayfork, CA

Magnitude

1.7 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Fri, Aug 21, 2026, 6:27 PM PDT

UTC

2026-08-22 01:27:26 UTC

Depth

22.9 km (14.2 mi), shallow

Epicenter

40.439° N, 123.496° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.21

Depth from

From location

Station coverage gap

42°

Stations used

43

• Hayfork, CaliforniaPopulation 2,368. Forecast29 kmWSW
• Fortuna, CaliforniaPopulation 12,000. Forecast59 kmESE
• Chico, CaliforniaPopulation 121,345. Forecast162 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast848 kmNNW

After

1. 2.129 km WNW of Petrolia, CASat, Aug 22, 12:13 AM PDT · 42 days ago · 23 km deep · 96 km away
2. 1.715 km WSW of Ferndale, CASat, Aug 22, 4:54 AM PDT · 42 days ago · 19 km deep · 79 km away
3. 1.819 km W of Petrolia, CASat, Aug 22, 7:40 AM PDT · 42 days ago · 21 km deep · 87 km away
4. 1.916 km E of Willow Creek, CASat, Aug 22, 10:05 PM PDT · 41 days ago · 27 km deep · 53 km away
5. 1.916 km W of Cape Vizcaino, CASun, Aug 23, 5:22 AM PDT · 41 days ago · 5 km deep · 92 km away
6. 2.623 km W of Petrolia, CATue, Aug 25, 4:03 PM PDT · 39 days ago · 29 km deep · 91 km away
7. 1.84 km NE of Petrolia, CATue, Aug 25, 4:11 PM PDT · 39 days ago · 31 km deep · 64 km away
8. 1.87 km E of Covelo, CAWed, Aug 26, 5:51 AM PDT · 38 days ago · 10 km deep · 77 km away
9. 2.012 km WSW of Petrolia, CAThu, Aug 27, 10:55 PM PDT · 36 days ago · 10 km deep · 80 km away
10. 1.81 km N of Redway, CAFri, Aug 28, 11:33 AM PDT · 36 days ago · 23 km deep · 44 km away
11. 2.210 km NNW of Willow Creek, CASat, Aug 29, 1:00 PM PDT · 35 days ago · 26 km deep · 67 km away
12. 1.912 km ESE of Willow Creek, CASun, Aug 30, 12:50 PM PDT · 34 days ago · 23 km deep · 52 km away
13. 1.62 km ENE of Redway, CAMon, Aug 31, 4:49 AM PDT · 33 days ago · 22 km deep · 43 km away
14. 1.720 km WNW of Cape Vizcaino, CATue, Sep 1, 2:32 AM PDT · 32 days ago · 1 km deep · 89 km away
15. 2.017 km WNW of Cape Vizcaino, CATue, Sep 1, 4:36 AM PDT · 32 days ago · 1 km deep · 85 km away
16. 2.615 km SE of Petrolia, CAThu, Sep 3, 9:54 AM PDT · 30 days ago · 12 km deep · 63 km away · felt by 1
17. 1.916 km SSE of Willow Creek, CAThu, Sep 3, 3:10 PM PDT · 30 days ago · 20 km deep · 42 km away
18. 2.231 km W of Petrolia, CAThu, Sep 3, 4:17 PM PDT · 30 days ago · 18 km deep · 99 km away
19. 1.815 km SE of Petrolia, CAThu, Sep 3, 10:52 PM PDT · 29 days ago · 13 km deep · 59 km away
20. 2.019 km NNW of Shelter Cove, CAMon, Sep 7, 1:40 AM PDT · 26 days ago · 14 km deep · 60 km away
21. 2.29 km WSW of Petrolia, CAMon, Sep 7, 12:37 PM PDT · 26 days ago · 14 km deep · 76 km away · felt by 1
22. 3.736 km E of Hydesville, CAMon, Sep 7, 2:44 PM PDT · 26 days ago · 24 km deep · 21 km away · felt by 15
23. 1.64 km NE of Petrolia, CATue, Sep 8, 8:33 AM PDT · 25 days ago · 28 km deep · 65 km away
24. 1.64 km ESE of Redway, CATue, Sep 8, 4:50 PM PDT · 24 days ago · 23 km deep · 44 km away
25. 1.68 km NW of Petrolia, CAWed, Sep 9, 7:05 AM PDT · 24 days ago · 24 km deep · 73 km away
26. 3.820 km WSW of Petrolia, CAWed, Sep 9, 6:24 PM PDT · 23 days ago · 20 km deep · 88 km away · felt by 24
27. 3.621 km W of Petrolia, CAWed, Sep 9, 6:24 PM PDT · 23 days ago · 20 km deep · 89 km away · felt by 8
28. 2.122 km W of Petrolia, CAWed, Sep 9, 6:33 PM PDT · 23 days ago · 21 km deep · 90 km away
29. 2.215 km NNE of Fort Bragg, CAWed, Sep 9, 7:59 PM PDT · 23 days ago · -1 km deep · 99 km away
30. 2.512 km W of Bayview, CAThu, Sep 10, 3:26 PM PDT · 23 days ago · 27 km deep · 79 km away
31. 2.012 km NW of Hayfork, CASun, Sep 13, 9:24 AM PDT · 20 days ago · 36 km deep · 29 km away
32. 1.732 km WSW of Petrolia, CAMon, Sep 14, 12:01 AM PDT · 19 days ago · 16 km deep · 100 km away
33. 1.718 km WSW of Petrolia, CAMon, Sep 14, 1:49 AM PDT · 19 days ago · 22 km deep · 86 km away
34. 2.67 km E of Hydesville, CAMon, Sep 14, 8:36 PM PDT · 18 days ago · 26 km deep · 45 km away · felt by 3
35. 2.225 km NW of Alder Springs, CAMon, Sep 14, 10:02 PM PDT · 18 days ago · 1 km deep · 84 km away
36. 1.916 km W of Petrolia, CATue, Sep 15, 12:10 AM PDT · 18 days ago · 10 km deep · 84 km away
37. 2.917 km WSW of Petrolia, CATue, Sep 15, 12:18 AM PDT · 18 days ago · 9 km deep · 85 km away · felt by 2
38. 1.835 km E of Hydesville, CAWed, Sep 16, 1:07 AM PDT · 17 days ago · 23 km deep · 21 km away
39. 3.520 km WSW of Petrolia, CAWed, Sep 16, 7:34 AM PDT · 17 days ago · 20 km deep · 88 km away · felt by 18
40. 2.119 km WSW of Petrolia, CAWed, Sep 16, 12:14 PM PDT · 17 days ago · 20 km deep · 87 km away
41. 2.242 km NNE of Covelo, CAWed, Sep 16, 2:16 PM PDT · 17 days ago · 42 km deep · 47 km away
42. 1.728 km N of Redway, CAWed, Sep 16, 3:33 PM PDT · 17 days ago · 29 km deep · 24 km away
43. 2.224 km W of Petrolia, CAWed, Sep 16, 4:39 PM PDT · 16 days ago · 11 km deep · 92 km away
44. 2.519 km W of Petrolia, CAThu, Sep 17, 9:39 PM PDT · 15 days ago · 9 km deep · 87 km away
45. 1.825 km NW of Alder Springs, CAFri, Sep 18, 8:48 AM PDT · 15 days ago · 2 km deep · 84 km away
46. 1.94 km SE of Redway, CAFri, Sep 18, 9:16 AM PDT · 15 days ago · 18 km deep · 45 km away
47. 2.315 km WSW of Petrolia, CAFri, Sep 18, 6:24 PM PDT · 14 days ago · 14 km deep · 83 km away
48. 1.615 km W of Petrolia, CAFri, Sep 18, 8:11 PM PDT · 14 days ago · 10 km deep · 83 km away
49. 1.617 km WSW of Petrolia, CASat, Sep 19, 11:58 PM PDT · 13 days ago · 20 km deep · 84 km away
50. 1.513 km SSE of Redway, CASun, Sep 20, 2:40 PM PDT · 13 days ago · 18 km deep · 52 km away
51. 2.229 km WNW of Petrolia, CAMon, Sep 21, 1:50 AM PDT · 12 days ago · 26 km deep · 94 km away
52. 2.819 km WSW of Petrolia, CAMon, Sep 21, 11:54 AM PDT · 12 days ago · 7 km deep · 87 km away · felt by 2
53. 1.816 km WSW of Petrolia, CAMon, Sep 21, 12:39 PM PDT · 12 days ago · 7 km deep · 84 km away
54. 2.325 km W of Petrolia, CAMon, Sep 21, 3:41 PM PDT · 12 days ago · 10 km deep · 93 km away
55. 1.718 km WSW of Petrolia, CAMon, Sep 21, 4:32 PM PDT · 11 days ago · 6 km deep · 86 km away
56. 1.730 km E of Rio Dell, CAMon, Sep 21, 4:38 PM PDT · 11 days ago · 22 km deep · 22 km away
57. 1.713 km WSW of Petrolia, CATue, Sep 22, 3:18 PM PDT · 11 days ago · 20 km deep · 81 km away
58. 1.716 km NNW of Redway, CAFri, Sep 25, 1:26 AM PDT · 8 days ago · 28 km deep · 37 km away
59. 1.710 km SE of Rio Dell, CAFri, Sep 25, 10:03 AM PDT · 8 days ago · 21 km deep · 45 km away
60. 2.232 km NE of Redway, CASat, Sep 26, 11:29 PM PDT · 6 days ago · 31 km deep · 15 km away · felt by 1

The first 60 of 62.

Before

1. 1.715 km W of Cape Vizcaino, CAFri, Aug 21, 5:32 PM PDT · 42 days ago · 1 km deep · 91 km away
2. 2.528 km NW of Weaverville, CATue, Aug 18, 8:59 AM PDT · 46 days ago · 31 km deep · 53 km away
3. 1.815 km WSW of Ferndale, CAFri, Aug 14, 2:14 PM PDT · 50 days ago · 19 km deep · 79 km away
4. 2.65 km S of Petrolia, CAFri, Aug 14, 5:11 AM PDT · 50 days ago · 11 km deep · 69 km away
5. 1.824 km WNW of Petrolia, CAThu, Aug 13, 2:23 PM PDT · 51 days ago · 27 km deep · 88 km away
6. 2.430 km WNW of Petrolia, CAThu, Aug 13, 4:57 AM PDT · 51 days ago · 25 km deep · 95 km away
7. 2.030 km E of Rio Dell, CAThu, Aug 13, 4:43 AM PDT · 51 days ago · 20 km deep · 22 km away
8. 1.712 km W of Petrolia, CAWed, Aug 12, 11:59 PM PDT · 51 days ago · 9 km deep · 80 km away
9. 1.910 km ENE of Rockport, CAWed, Aug 12, 6:22 PM PDT · 51 days ago · 4 km deep · 77 km away
10. 1.710 km ENE of Rockport, CAWed, Aug 12, 6:22 PM PDT · 51 days ago · 4 km deep · 76 km away
11. 2.732 km NNW of Covelo, CAWed, Aug 12, 4:27 PM PDT · 51 days ago · 8 km deep · 46 km away · felt by 1
12. 2.328 km W of Petrolia, CAWed, Aug 12, 2:47 PM PDT · 52 days ago · 21 km deep · 96 km away
13. 1.98 km N of Covelo, CATue, Aug 11, 5:53 AM PDT · 53 days ago · 8 km deep · 67 km away
14. 2.632 km NW of Covelo, CAMon, Aug 10, 11:26 AM PDT · 54 days ago · 8 km deep · 46 km away
15. 1.641 km WNW of Rancho Tehama Reserve, CASun, Aug 9, 2:45 PM PDT · 55 days ago · -1 km deep · 63 km away
16. 1.716 km WNW of Petrolia, CASat, Aug 8, 8:21 PM PDT · 55 days ago · 17 km deep · 82 km away
17. 1.57 km SE of Redway, CASat, Aug 8, 7:51 PM PDT · 55 days ago · 24 km deep · 46 km away
18. 1.825 km W of Petrolia, CASat, Aug 8, 9:33 AM PDT · 56 days ago · 10 km deep · 93 km away
19. 3.231 km NNW of Covelo, CASat, Aug 8, 8:33 AM PDT · 56 days ago · 9 km deep · 46 km away · felt by 5
20. 1.810 km N of Covelo, CAFri, Aug 7, 12:38 PM PDT · 57 days ago · 7 km deep · 66 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc75422762. Read Sat, Oct 3, 2026, 10:50 AM UTC.