M2.3 earthquake 78 km WSW of Ferndale, California

Magnitude

2.3 (md), micro

Local time

Tue, Nov 19, 1985, 11:00 PM PST

UTC

1985-11-20 07:00:03 UTC

Depth

4.4 km (2.7 mi), shallow

Epicenter

40.432° N, 125.167° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 5.0 km horizontally, 11.6 km in depth

Magnitude uncertainty

±0.07

Depth from

From location

Station coverage gap

290°, poorly surrounded by stations

Stations used

15

• Ferndale, CaliforniaPopulation 1,369. Forecast78 kmWSW
• Fortuna, CaliforniaPopulation 12,000. Forecast87 kmWSW
• Chico, CaliforniaPopulation 121,345. Forecast294 kmWNW

After

1. 3.055 km W of Shelter Cove, CaliforniaWed, Nov 20, 11:16 AM PST · 14924 days ago · 4 km deep · 51 km away
2. 2.725 km SSW of Ferndale, CaliforniaWed, Nov 20, 11:08 PM PST · 14924 days ago · 39 km deep · 67 km away
3. 2.856 km WSW of Ferndale, CaliforniaSat, Nov 23, 9:08 PM PST · 14921 days ago · 16 km deep · 23 km away
4. 3.236 km WSW of Ferndale, CaliforniaWed, Nov 27, 8:02 PM PST · 14917 days ago · 30 km deep · 43 km away
5. 1.73 km SSW of Loleta, CaliforniaWed, Nov 27, 9:22 PM PST · 14917 days ago · 4 km deep · 81 km away
6. 1.648 km SW of Ferndale, CaliforniaTue, Dec 3, 1:35 PM PST · 14911 days ago · 4 km deep · 39 km away
7. 4.245 km W of Ferndale, CaliforniaWed, Dec 4, 10:28 PM PST · 14910 days ago · 19 km deep · 38 km away
8. 2.46 km W of Loleta, CaliforniaSun, Dec 8, 1:48 PM PST · 14906 days ago · -1 km deep · 77 km away
9. 2.16 km SSW of Ferndale, CaliforniaMon, Dec 9, 2:47 PM PST · 14905 days ago · 9 km deep · 74 km away
10. 2.232 km SW of Ferndale, CaliforniaWed, Dec 11, 10:27 AM PST · 14903 days ago · 15 km deep · 50 km away
11. 2.332 km SW of Ferndale, CaliforniaWed, Dec 11, 4:00 PM PST · 14903 days ago · 15 km deep · 51 km away
12. 1.79 km SW of Ferndale, CaliforniaSat, Dec 14, 9:24 PM PST · 14900 days ago · 9 km deep · 70 km away
13. 3.023 km SW of Scotia, CaliforniaSun, Dec 15, 4:43 AM PST · 14899 days ago · 16 km deep · 72 km away
14. 1.723 km SW of Scotia, CaliforniaSun, Dec 15, 4:47 AM PST · 14899 days ago · 15 km deep · 73 km away
15. 3.337 km WSW of Ferndale, CaliforniaSun, Dec 15, 10:06 PM PST · 14899 days ago · 22 km deep · 44 km away
16. 2.110 km W of Indianola, CaliforniaMon, Dec 16, 6:42 AM PST · 14898 days ago · 5 km deep · 74 km away
17. 1.63 km NE of Fortuna, CaliforniaMon, Dec 16, 12:33 PM PST · 14898 days ago · 19 km deep · 90 km away
18. 2.09 km W of Bayview, CaliforniaMon, Dec 16, 12:48 PM PST · 14898 days ago · 20 km deep · 83 km away
19. 1.85 km WNW of Ferndale, CaliforniaTue, Dec 17, 2:56 AM PST · 14898 days ago · 4 km deep · 73 km away
20. 1.84 km WSW of Ferndale, CaliforniaTue, Dec 17, 3:16 AM PST · 14898 days ago · 4 km deep · 74 km away
21. 1.64 km WSW of Ferndale, CaliforniaTue, Dec 17, 7:26 AM PST · 14897 days ago · 4 km deep · 74 km away
22. 1.97 km W of Loleta, CaliforniaTue, Dec 17, 7:51 AM PST · 14897 days ago · 4 km deep · 75 km away
23. 1.631 km SSW of Ferndale, CaliforniaTue, Dec 17, 9:38 PM PST · 14897 days ago · 5 km deep · 66 km away
24. 2.626 km SW of Ferndale, CaliforniaThu, Dec 19, 12:35 AM PST · 14896 days ago · 16 km deep · 56 km away
25. 2.422 km SW of Ferndale, CaliforniaThu, Dec 19, 1:08 AM PST · 14896 days ago · 14 km deep · 62 km away
26. 2.4108 km W of Ferndale, CaliforniaFri, Dec 20, 7:10 AM PST · 14894 days ago · 6 km deep · 31 km away
27. 2.037 km W of Ferndale, CaliforniaFri, Dec 20, 1:32 PM PST · 14894 days ago · 4 km deep · 41 km away
28. 3.652 km SW of Ferndale, CaliforniaSat, Dec 21, 11:00 AM PST · 14893 days ago · 11 km deep · 43 km away
29. 2.627 km SSW of Ferndale, CaliforniaSun, Dec 22, 6:00 AM PST · 14892 days ago · 17 km deep · 64 km away
30. 2.14 km ESE of Indianola, CaliforniaSun, Dec 22, 7:47 AM PST · 14892 days ago · 17 km deep · 88 km away
31. 1.739 km SSW of Ferndale, CaliforniaMon, Dec 23, 10:58 PM PST · 14891 days ago · 4 km deep · 62 km away
32. 2.17 km W of Rio Dell, CaliforniaTue, Dec 24, 12:44 AM PST · 14891 days ago · 21 km deep · 82 km away
33. 2.033 km WSW of Ferndale, CaliforniaThu, Dec 26, 5:58 AM PST · 14888 days ago · 15 km deep · 49 km away
34. 1.610 km SSW of Ferndale, CaliforniaThu, Dec 26, 8:12 AM PST · 14888 days ago · 7 km deep · 72 km away
35. 3.958 km W of Shelter Cove, CaliforniaSat, Dec 28, 4:38 PM PST · 14886 days ago · 4 km deep · 49 km away
36. 2.610 km W of Indianola, CaliforniaWed, Jan 1, 2:34 AM PST · 14883 days ago · 0 km deep · 75 km away
37. 3.19 km NW of Ferndale, CaliforniaFri, Jan 3, 4:33 AM PST · 14880 days ago · 8 km deep · 72 km away
38. 2.614 km WSW of Scotia, CaliforniaSat, Jan 4, 8:00 PM PST · 14879 days ago · 25 km deep · 78 km away
39. 2.629 km SW of Scotia, CaliforniaSat, Jan 4, 9:56 PM PST · 14879 days ago · 8 km deep · 68 km away
40. 2.228 km SW of Scotia, CaliforniaSat, Jan 4, 9:57 PM PST · 14879 days ago · 6 km deep · 68 km away
41. 1.629 km SW of Scotia, CaliforniaSun, Jan 5, 4:19 AM PST · 14878 days ago · 9 km deep · 70 km away
42. 2.831 km SW of Scotia, CaliforniaThu, Jan 9, 3:46 AM PST · 14874 days ago · 16 km deep · 67 km away
43. 2.15 km SSE of Ferndale, CaliforniaFri, Jan 10, 7:04 AM PST · 14873 days ago · 7 km deep · 79 km away
44. 2.645 km WNW of Samoa, CaliforniaFri, Jan 10, 7:20 AM PST · 14873 days ago · 4 km deep · 69 km away
45. 3.212 km WSW of Redcrest, CaliforniaFri, Jan 10, 11:53 AM PST · 14873 days ago · 1 km deep · 92 km away
46. 1.79 km WSW of Ferndale, CaliforniaSat, Jan 11, 12:44 PM PST · 14872 days ago · 17 km deep · 69 km away
47. 2.07 km W of Rio Dell, CaliforniaSun, Jan 12, 3:28 AM PST · 14871 days ago · 20 km deep · 82 km away
48. 2.114 km WSW of Weott, CaliforniaSun, Jan 12, 9:20 PM PST · 14871 days ago · 8 km deep · 94 km away
49. 3.035 km WSW of Ferndale, CaliforniaThu, Jan 16, 11:05 AM PST · 14867 days ago · 23 km deep · 46 km away

Before

1. 2.533 km SW of Ferndale, CaliforniaTue, Nov 19, 8:43 AM PST · 14925 days ago · 25 km deep · 49 km away
2. 3.235 km WSW of Ferndale, CaliforniaTue, Nov 19, 7:08 AM PST · 14925 days ago · 38 km deep · 44 km away
3. 2.644 km SW of Ferndale, CaliforniaSun, Nov 17, 10:03 PM PST · 14927 days ago · 19 km deep · 41 km away
4. 1.819 km WSW of Scotia, CASun, Nov 17, 9:26 AM PST · 14927 days ago · 4 km deep · 74 km away
5. 1.610 km W of Ferndale, CaliforniaWed, Nov 13, 1:35 AM PST · 14932 days ago · 15 km deep · 67 km away
6. 2.537 km SSW of Ferndale, CaliforniaTue, Nov 12, 2:17 AM PST · 14933 days ago · 21 km deep · 58 km away
7. 2.646 km WSW of Ferndale, CaliforniaMon, Nov 11, 11:10 PM PST · 14933 days ago · 1 km deep · 39 km away
8. 2.29 km WNW of Ferndale, CaliforniaSat, Nov 9, 8:44 PM PST · 14935 days ago · 11 km deep · 70 km away
9. 2.52 km NNE of Humboldt Hill, CaliforniaFri, Nov 8, 1:59 PM PST · 14936 days ago · 19 km deep · 90 km away
10. 4.175 km WNW of Ferndale, CaliforniaFri, Nov 8, 5:02 AM PST · 14936 days ago · 2 km deep · 37 km away
11. 1.734 km NW of Shelter Cove, CaliforniaWed, Nov 6, 9:36 PM PST · 14938 days ago · 4 km deep · 69 km away
12. 2.235 km SSW of Ferndale, CaliforniaWed, Nov 6, 9:25 PM PST · 14938 days ago · 18 km deep · 63 km away
13. 2.360 km W of Indianola, CaliforniaWed, Nov 6, 5:35 AM PST · 14938 days ago · 4 km deep · 41 km away
14. 2.719 km WNW of Indianola, CaliforniaThu, Oct 31, 7:31 PM PST · 14944 days ago · 20 km deep · 70 km away
15. 3.073 km WSW of Ferndale, CaliforniaSat, Oct 26, 6:32 PM PDT · 14949 days ago · 12 km deep · 7 km away
16. 3.122 km WSW of Weott, CaliforniaSat, Oct 26, 4:41 PM PDT · 14949 days ago · 13 km deep · 89 km away
17. 3.622 km WNW of Indianola, CaliforniaFri, Oct 25, 6:56 PM PDT · 14950 days ago · 21 km deep · 66 km away
18. 2.312 km SW of Scotia, CaliforniaMon, Oct 21, 1:42 AM PDT · 14955 days ago · 6 km deep · 82 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc60694. Read Wed, Sep 30, 2026, 10:47 PM UTC.