M1.8 earthquake 5 km SW of Ferndale, California

Magnitude

1.8 (md), micro

Local time

Fri, Jul 5, 1985, 4:45 AM PDT

UTC

1985-07-05 11:45:50 UTC

Depth

13.2 km (8.2 mi), shallow

Epicenter

40.543° N, 124.311° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 4.6 km horizontally, 5.5 km in depth

Magnitude uncertainty

±0.23

Depth from

From location

Station coverage gap

204°, poorly surrounded by stations

Stations used

6

• Ferndale, CaliforniaPopulation 1,369. Forecast5 kmSW
• Fortuna, CaliforniaPopulation 12,000. Forecast14 kmWSW
• Chico, CaliforniaPopulation 121,345. Forecast229 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast899 kmNW

After

1. 2.128 km SW of Ferndale, CaliforniaFri, Jul 5, 2:14 PM PDT · 15054 days ago · 17 km deep · 23 km away
2. 1.615 km WSW of Weott, CaliforniaFri, Jul 5, 9:00 PM PDT · 15054 days ago · 4 km deep · 38 km away
3. 2.319 km NNW of Shelter Cove, CaliforniaSat, Jul 6, 10:58 AM PDT · 15053 days ago · 4 km deep · 41 km away
4. 2.817 km WNW of Indianola, CaliforniaSat, Jul 6, 10:26 PM PDT · 15053 days ago · 6 km deep · 24 km away
5. 2.53 km N of Redway, CaliforniaMon, Jul 8, 1:05 AM PDT · 15052 days ago · 19 km deep · 60 km away
6. 1.619 km SW of Weott, CaliforniaMon, Jul 8, 10:02 AM PDT · 15051 days ago · 4 km deep · 42 km away
7. 1.8near the coast of Northern CaliforniaMon, Jul 8, 4:48 PM PDT · 15051 days ago · 17 km deep · 22 km away
8. 1.7near the coast of Northern CaliforniaTue, Jul 9, 1:26 AM PDT · 15051 days ago · 4 km deep · 25 km away
9. 2.810 km W of Scotia, CaliforniaWed, Jul 10, 12:52 PM PDT · 15049 days ago · 22 km deep · 11 km away
10. 2.210 km W of Scotia, CaliforniaWed, Jul 10, 2:26 PM PDT · 15049 days ago · 21 km deep · 11 km away
11. 2.07 km NNE of Hyampom, CaliforniaWed, Jul 10, 6:21 PM PDT · 15049 days ago · 4 km deep · 77 km away
12. 2.123 km SSW of Scotia, CaliforniaThu, Jul 11, 12:09 AM PDT · 15049 days ago · 11 km deep · 27 km away
13. 1.76 km ESE of Scotia, CaliforniaThu, Jul 11, 10:23 PM PDT · 15048 days ago · 4 km deep · 25 km away
14. 3.329 km W of Shelter Cove, CaliforniaSat, Jul 13, 11:36 AM PDT · 15046 days ago · 5 km deep · 54 km away
15. 2.436 km SW of Ferndale, CaliforniaSat, Jul 13, 1:25 PM PDT · 15046 days ago · 9 km deep · 31 km away
16. 3.685 km W of Ferndale, CaliforniaTue, Jul 16, 2:56 PM PDT · 15043 days ago · 11 km deep · 81 km away
17. 3.09km N of Petrolia, CAThu, Jul 18, 9:47 AM PDT · 15041 days ago · 24 km deep · 16 km away
18. 1.715 km W of Weott, CaliforniaThu, Jul 18, 7:21 PM PDT · 15041 days ago · 11 km deep · 31 km away
19. 2.220 km W of Weott, CaliforniaSun, Jul 21, 12:17 AM PDT · 15039 days ago · 5 km deep · 31 km away
20. 2.112 km WSW of Weott, CaliforniaSun, Jul 21, 1:25 AM PDT · 15039 days ago · 0 km deep · 38 km away
21. 4.389 km WNW of Samoa, CaliforniaTue, Jul 23, 11:04 AM PDT · 15036 days ago · 5 km deep · 92 km away
22. 2.112 km NE of Redcrest, CaliforniaWed, Jul 24, 3:39 PM PDT · 15035 days ago · 6 km deep · 41 km away
23. 5.063 km WSW of Ferndale, CaliforniaFri, Jul 26, 4:49 PM PDT · 15033 days ago · 4 km deep · 58 km away
24. 2.627 km SSW of Ferndale, CaliforniaMon, Jul 29, 2:38 AM PDT · 15031 days ago · 15 km deep · 22 km away
25. 3.418 km W of Big Lagoon, CaliforniaMon, Jul 29, 8:52 PM PDT · 15030 days ago · -1 km deep · 67 km away
26. 4.281 km WSW of Ferndale, CaliforniaTue, Jul 30, 3:57 AM PDT · 15029 days ago · 4 km deep · 77 km away
27. 2.680 km WSW of Ferndale, CaliforniaTue, Jul 30, 4:24 AM PDT · 15029 days ago · 4 km deep · 75 km away
28. 2.820 km ENE of Hydesville, CaliforniaTue, Jul 30, 6:59 PM PDT · 15029 days ago · 21 km deep · 38 km away
29. 1.77 km ENE of Redcrest, CaliforniaWed, Jul 31, 6:58 PM PDT · 15028 days ago · 23 km deep · 40 km away
30. 2.779 km W of Ferndale, CaliforniaThu, Aug 8, 12:58 AM PDT · 15021 days ago · 3 km deep · 75 km away
31. 1.69 km SW of Alderpoint, CaliforniaFri, Aug 9, 5:27 PM PDT · 15019 days ago · 22 km deep · 72 km away
32. 1.923 km SW of Scotia, CaliforniaWed, Aug 14, 4:53 PM PDT · 15014 days ago · 8 km deep · 20 km away
33. 2.126 km SW of Scotia, CaliforniaSat, Aug 17, 5:27 PM PDT · 15011 days ago · 10 km deep · 23 km away
34. 2.146 km W of Ferndale, CaliforniaTue, Aug 20, 10:14 PM PDT · 15008 days ago · 21 km deep · 42 km away
35. 1.935 km SW of Ferndale, CaliforniaWed, Aug 21, 6:02 AM PDT · 15007 days ago · 12 km deep · 30 km away
36. 2.336 km SW of Ferndale, CaliforniaSat, Aug 24, 1:54 AM PDT · 15005 days ago · 20 km deep · 32 km away
37. 2.111 km WNW of Hyampom, CaliforniaSun, Aug 25, 9:59 AM PDT · 15003 days ago · 20 km deep · 63 km away
38. 2.028 km SSW of Ferndale, CaliforniaMon, Aug 26, 1:08 PM PDT · 15002 days ago · 13 km deep · 23 km away
39. 2.644 km WSW of Ferndale, CaliforniaTue, Aug 27, 8:23 AM PDT · 15001 days ago · 17 km deep · 39 km away
40. 2.599 km W of Indianola, CaliforniaWed, Aug 28, 5:14 PM PDT · 15000 days ago · 5 km deep · 97 km away
41. 2.419 km SSE of Blue Lake, CaliforniaFri, Aug 30, 2:21 AM PDT · 14999 days ago · 24 km deep · 42 km away
42. 1.925 km SSW of Scotia, CaliforniaSat, Aug 31, 1:38 AM PDT · 14998 days ago · 7 km deep · 30 km away
43. 1.922 km ESE of Orick, CaliforniaSat, Aug 31, 11:33 PM PDT · 14997 days ago · 4 km deep · 83 km away
44. 2.4near the coast of Northern CaliforniaSun, Sep 1, 1:18 PM PDT · 14996 days ago · 13 km deep · 6 km away
45. 3.722 km NW of Mad River, CaliforniaMon, Sep 2, 9:53 AM PDT · 14995 days ago · 23 km deep · 51 km away
46. 2.024 km WSW of Ferndale, CaliforniaMon, Sep 2, 10:47 AM PDT · 14995 days ago · 26 km deep · 19 km away
47. 1.616 km ENE of Leggett, CaliforniaMon, Sep 2, 11:52 PM PDT · 14995 days ago · 2 km deep · 98 km away

Before

1. 1.65 km SSE of Ferndale, CaliforniaThu, Jul 4, 5:31 PM PDT · 15055 days ago · 18 km deep · 7 km away
2. 2.43 km WNW of Fields Landing, CaliforniaThu, Jul 4, 9:07 AM PDT · 15055 days ago · 4 km deep · 22 km away
3. 1.67 km W of Loleta, CaliforniaThu, Jul 4, 12:55 AM PDT · 15056 days ago · 4 km deep · 11 km away
4. 2.031 km SW of Ferndale, CaliforniaWed, Jul 3, 10:25 PM PDT · 15056 days ago · 19 km deep · 26 km away
5. 2.139 km WSW of Ferndale, CaliforniaWed, Jul 3, 2:07 AM PDT · 15057 days ago · 19 km deep · 34 km away
6. 3.42 km NNW of Fields Landing, CaliforniaTue, Jul 2, 4:56 PM PDT · 15057 days ago · 7 km deep · 23 km away
7. 2.585 km WSW of Ferndale, CaliforniaSun, Jun 30, 1:10 AM PDT · 15060 days ago · 5 km deep · 81 km away
8. 2.114 km WNW of Ferndale, CaliforniaThu, Jun 27, 5:21 PM PDT · 15062 days ago · 15 km deep · 13 km away
9. 1.726 km N of Willow Creek, CaliforniaWed, Jun 26, 8:07 PM PDT · 15063 days ago · 4 km deep · 91 km away
10. 2.92 km N of Burnt Ranch, CaliforniaWed, Jun 26, 10:51 AM PDT · 15063 days ago · 20 km deep · 77 km away
11. 2.510 km NW of Fields Landing, CaliforniaTue, Jun 25, 6:03 PM PDT · 15064 days ago · 26 km deep · 27 km away
12. 3.328 km SW of Scotia, CaliforniaSun, Jun 23, 4:14 PM PDT · 15066 days ago · 10 km deep · 27 km away
13. 2.923 km SSW of Ferndale, CaliforniaWed, Jun 19, 11:15 AM PDT · 15070 days ago · 17 km deep · 19 km away
14. 1.620 km W of Hyampom, CaliforniaThu, Jun 13, 6:59 PM PDT · 15076 days ago · 4 km deep · 52 km away
15. 2.05 km WNW of Samoa, CaliforniaWed, Jun 12, 9:20 AM PDT · 15077 days ago · 4 km deep · 33 km away
16. 2.2Northern CaliforniaTue, Jun 11, 3:02 PM PDT · 15078 days ago · 10 km deep · 84 km away
17. 1.67 km W of Redcrest, CaliforniaMon, Jun 10, 12:13 AM PDT · 15080 days ago · 4 km deep · 28 km away
18. 3.014 km WSW of Hayfork, CaliforniaSat, Jun 8, 8:57 PM PDT · 15081 days ago · 33 km deep · 83 km away
19. 2.116 km WSW of Weott, CaliforniaThu, Jun 6, 5:50 AM PDT · 15083 days ago · 4 km deep · 34 km away
20. 2.315 km ENE of Hydesville, CaliforniaWed, Jun 5, 10:12 AM PDT · 15084 days ago · 19 km deep · 33 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc51184. Read Tue, Sep 22, 2026, 9:27 PM UTC.