M2.9 earthquake 71 km WSW of Ferndale, California

Magnitude

2.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sun, Oct 21, 1990, 10:13 AM PDT

UTC

1990-10-21 17:13:11 UTC

Depth

21.8 km (13.5 mi), shallow

Epicenter

40.374° N, 125.063° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.2 km horizontally, 23.7 km in depth

Magnitude uncertainty

±0.11

Depth from

From location

Station coverage gap

268°, poorly surrounded by stations

Stations used

27

• Ferndale, CaliforniaPopulation 1,369. Forecast71 kmWSW
• Fortuna, CaliforniaPopulation 12,000. Forecast81 kmWSW
• Chico, CaliforniaPopulation 121,345. Forecast284 kmWNW

After

1. 2.474 km WNW of Ferndale, CaliforniaSun, Oct 21, 3:57 PM PDT · 13132 days ago · 5 km deep · 41 km away
2. 2.810 km SSW of Ferndale, CaliforniaMon, Oct 22, 8:34 AM PDT · 13132 days ago · 22 km deep · 66 km away
3. 3.240 km WNW of Ferndale, CaliforniaWed, Oct 24, 11:45 PM PDT · 13129 days ago · -1 km deep · 45 km away
4. 2.119 km NW of Shelter Cove, CaliforniaThu, Oct 25, 4:59 AM PDT · 13129 days ago · 8 km deep · 76 km away
5. 3.082 km W of Ferndale, CaliforniaFri, Oct 26, 2:23 PM PDT · 13128 days ago · 1 km deep · 16 km away
6. 1.936 km SSW of Ferndale, CaliforniaSun, Oct 28, 9:03 PM PST · 13125 days ago · 21 km deep · 49 km away
7. 3.528 km SSW of Ferndale, CaliforniaTue, Oct 30, 6:42 PM PST · 13123 days ago · 18 km deep · 54 km away
8. 3.1124 km W of Ferndale, CaliforniaWed, Oct 31, 12:22 AM PST · 13123 days ago · 6 km deep · 56 km away
9. 1.632 km SSW of Ferndale, CaliforniaThu, Nov 1, 8:14 AM PST · 13122 days ago · 5 km deep · 55 km away
10. 1.624 km SSW of Scotia, CaliforniaThu, Nov 1, 9:42 PM PST · 13121 days ago · 18 km deep · 69 km away
11. 2.424 km SSW of Ferndale, CaliforniaFri, Nov 2, 3:03 PM PST · 13120 days ago · 16 km deep · 59 km away
12. 4.468 km WNW of Indianola, CaliforniaSat, Nov 3, 5:47 AM PST · 13120 days ago · 9 km deep · 57 km away
13. 3.283 km W of Trinidad, CaliforniaSat, Nov 3, 9:20 PM PST · 13119 days ago · 2 km deep · 75 km away
14. 2.531 km SW of Ferndale, CaliforniaTue, Nov 6, 4:33 AM PST · 13117 days ago · 8 km deep · 43 km away
15. 2.336 km SSW of Ferndale, CaliforniaMon, Nov 12, 2:28 AM PST · 13111 days ago · 8 km deep · 48 km away
16. 1.831 km SW of Scotia, CaliforniaSun, Nov 18, 6:57 AM PST · 13105 days ago · 20 km deep · 59 km away
17. 1.910 km WSW of Scotia, CaliforniaMon, Nov 19, 12:24 AM PST · 13104 days ago · 25 km deep · 72 km away
18. 2.336 km WSW of Ferndale, CaliforniaMon, Nov 19, 1:42 AM PST · 13104 days ago · 23 km deep · 35 km away
19. 2.040 km WSW of Ferndale, CaliforniaMon, Nov 19, 4:01 AM PST · 13104 days ago · 16 km deep · 32 km away
20. 1.612 km SSW of Scotia, CaliforniaMon, Nov 19, 2:26 PM PST · 13103 days ago · 29 km deep · 76 km away
21. 2.338 km SW of Ferndale, CaliforniaTue, Nov 20, 12:46 AM PST · 13103 days ago · 19 km deep · 45 km away
22. 2.863 km WSW of Ferndale, CaliforniaTue, Nov 20, 1:46 AM PST · 13103 days ago · 1 km deep · 8 km away
23. 1.932 km SSW of Ferndale, CaliforniaTue, Nov 20, 9:27 PM PST · 13102 days ago · 8 km deep · 53 km away
24. 2.848 km SW of Ferndale, CaliforniaWed, Nov 21, 5:56 PM PST · 13101 days ago · 16 km deep · 36 km away
25. 3.130 km SW of Scotia, CaliforniaThu, Nov 22, 5:07 PM PST · 13100 days ago · 4 km deep · 62 km away
26. 2.554 km WSW of Ferndale, CaliforniaThu, Nov 22, 9:08 PM PST · 13100 days ago · 4 km deep · 23 km away
27. 2.033 km SSW of Ferndale, CaliforniaFri, Nov 23, 12:15 PM PST · 13100 days ago · 11 km deep · 54 km away
28. 4.134 km SW of Scotia, CaliforniaSat, Nov 24, 11:44 PM PST · 13098 days ago · 24 km deep · 58 km away
29. 2.132 km SW of Scotia, CaliforniaSun, Nov 25, 7:59 AM PST · 13098 days ago · 23 km deep · 59 km away
30. 1.834 km SSW of Ferndale, CaliforniaSun, Nov 25, 6:35 PM PST · 13097 days ago · 12 km deep · 52 km away
31. 3.236 km SSW of Ferndale, CaliforniaMon, Nov 26, 10:46 PM PST · 13096 days ago · 20 km deep · 49 km away
32. 1.818 km WSW of Ferndale, CaliforniaTue, Nov 27, 10:59 AM PST · 13096 days ago · 18 km deep · 54 km away
33. 1.835 km SSW of Ferndale, CaliforniaWed, Nov 28, 5:49 AM PST · 13095 days ago · 18 km deep · 50 km away
34. 1.731 km SW of Scotia, CaliforniaWed, Nov 28, 7:55 PM PST · 13094 days ago · 20 km deep · 59 km away
35. 2.858 km WSW of Ferndale, CaliforniaThu, Nov 29, 7:59 AM PST · 13094 days ago · -1 km deep · 13 km away
36. 2.418 km SSW of Ferndale, CaliforniaThu, Nov 29, 3:39 PM PST · 13093 days ago · 16 km deep · 61 km away
37. 1.929 km SW of Ferndale, CaliforniaThu, Nov 29, 3:48 PM PST · 13093 days ago · 20 km deep · 45 km away
38. 1.519 km SSW of Ferndale, CaliforniaThu, Nov 29, 4:03 PM PST · 13093 days ago · 15 km deep · 62 km away
39. 1.721 km SSW of Ferndale, CaliforniaThu, Nov 29, 4:27 PM PST · 13093 days ago · 17 km deep · 62 km away
40. 1.625 km SSW of Scotia, CaliforniaSat, Dec 1, 2:51 PM PST · 13091 days ago · 9 km deep · 71 km away
41. 3.922 km WSW of Weott, CaliforniaMon, Dec 3, 8:27 PM PST · 13089 days ago · 3 km deep · 77 km away
42. 1.629 km SW of Ferndale, CaliforniaMon, Dec 3, 10:54 PM PST · 13089 days ago · 16 km deep · 48 km away
43. 1.919 km SSW of Ferndale, CaliforniaTue, Dec 4, 5:26 PM PST · 13088 days ago · 15 km deep · 62 km away
44. 2.336 km WSW of Ferndale, CaliforniaWed, Dec 5, 4:09 AM PST · 13088 days ago · 24 km deep · 36 km away
45. 1.925 km SW of Ferndale, CaliforniaWed, Dec 5, 9:08 AM PST · 13088 days ago · 25 km deep · 47 km away
46. 2.142 km WSW of Ferndale, CaliforniaWed, Dec 5, 6:31 PM PST · 13087 days ago · 13 km deep · 31 km away
47. 4.595 km W of Ferndale, CaliforniaFri, Dec 7, 1:51 PM PST · 13086 days ago · 4 km deep · 40 km away
48. 2.02 km WSW of Scotia, CaliforniaSun, Dec 9, 5:57 AM PST · 13084 days ago · 23 km deep · 80 km away
49. 2.28 km S of Scotia, CaliforniaSun, Dec 9, 6:59 PM PST · 13083 days ago · 22 km deep · 83 km away
50. 3.42 km WSW of Scotia, CaliforniaMon, Dec 10, 9:52 PM PST · 13082 days ago · 20 km deep · 80 km away
51. 2.067 km WSW of Ferndale, CaliforniaMon, Dec 10, 11:40 PM PST · 13082 days ago · 2 km deep · 6 km away
52. 1.748 km WSW of Ferndale, CaliforniaTue, Dec 11, 6:39 AM PST · 13082 days ago · 3 km deep · 23 km away
53. 1.622 km SSW of Ferndale, CaliforniaWed, Dec 12, 7:45 PM PST · 13080 days ago · 19 km deep · 57 km away
54. 3.761 km W of Ferndale, CaliforniaThu, Dec 13, 5:53 AM PST · 13080 days ago · -1 km deep · 15 km away
55. 1.730 km SW of Scotia, CaliforniaThu, Dec 13, 11:33 PM PST · 13079 days ago · 12 km deep · 60 km away
56. 2.127 km WSW of Ferndale, CaliforniaFri, Dec 14, 5:03 AM PST · 13079 days ago · 25 km deep · 44 km away
57. 3.1104 km W of Ferndale, CaliforniaSun, Dec 16, 7:11 PM PST · 13076 days ago · 5 km deep · 39 km away
58. 2.227 km SW of Scotia, CaliforniaTue, Dec 18, 8:18 AM PST · 13075 days ago · 18 km deep · 59 km away

Before

1. 2.940 km SSW of Ferndale, CaliforniaSat, Oct 20, 10:13 PM PDT · 13133 days ago · 4 km deep · 52 km away
2. 2.515 km SW of Scotia, CaliforniaFri, Oct 19, 12:30 PM PDT · 13135 days ago · 30 km deep · 73 km away
3. 1.9near the coast of Northern CaliforniaThu, Oct 18, 4:54 PM PDT · 13135 days ago · 10 km deep · 77 km away
4. 2.535 km SW of Ferndale, CaliforniaTue, Oct 16, 9:46 AM PDT · 13138 days ago · 23 km deep · 46 km away
5. 2.354 km W of Ferndale, CaliforniaSun, Oct 14, 1:15 AM PDT · 13140 days ago · -1 km deep · 24 km away
6. 2.340 km WSW of Ferndale, CaliforniaThu, Oct 11, 10:49 AM PDT · 13143 days ago · 22 km deep · 31 km away
7. 2.477 km W of Ferndale, CaliforniaFri, Oct 5, 1:43 PM PDT · 13149 days ago · 5 km deep · 35 km away
8. 2.430 km SW of Ferndale, CaliforniaWed, Oct 3, 7:43 PM PDT · 13150 days ago · 18 km deep · 49 km away
9. 4.4off the coast of Northern CaliforniaWed, Oct 3, 5:57 AM PDT · 13151 days ago · 4 km deep · 19 km away
10. 3.516 km WNW of Ferndale, CaliforniaMon, Oct 1, 5:36 AM PDT · 13153 days ago · 20 km deep · 58 km away
11. 1.942 km SW of Ferndale, CaliforniaSun, Sep 30, 9:41 PM PDT · 13153 days ago · 14 km deep · 44 km away
12. 1.81 km SW of Ferndale, CaliforniaSat, Sep 29, 4:19 AM PDT · 13155 days ago · 4 km deep · 70 km away
13. 2.629 km SW of Ferndale, CaliforniaSat, Sep 29, 3:03 AM PDT · 13155 days ago · 18 km deep · 48 km away
14. 2.9141 km W of Ferndale, CaliforniaThu, Sep 27, 2:31 PM PDT · 13157 days ago · 5 km deep · 77 km away
15. 2.385 km WSW of Ferndale, CaliforniaTue, Sep 25, 11:22 PM PDT · 13158 days ago · 4 km deep · 15 km away
16. 3.798 km W of Ferndale, CaliforniaTue, Sep 25, 9:33 PM PDT · 13158 days ago · 9 km deep · 32 km away
17. 4.7105 km W of Ferndale, CaliforniaTue, Sep 25, 9:14 PM PDT · 13158 days ago · 6 km deep · 37 km away
18. 4.11 km ENE of Humboldt Hill, CaliforniaMon, Sep 24, 2:47 AM PDT · 13160 days ago · 15 km deep · 85 km away
19. 2.011 km WNW of Indianola, CaliforniaSat, Sep 22, 7:14 PM PDT · 13161 days ago · 2 km deep · 70 km away
20. 3.024 km SSW of Ferndale, CaliforniaFri, Sep 21, 11:25 AM PDT · 13163 days ago · 17 km deep · 54 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc165689. Read Mon, Oct 5, 2026, 9:32 AM UTC.