M3.0 earthquake 89 km W of Ferndale, California

Magnitude

3.0 (Md, duration), minor

Magnitude from

Northern California Seismic System

Local time

Wed, Apr 10, 1985, 5:01 PM PST

UTC

1985-04-11 01:01:06 UTC

Depth

34.6 km (21.5 mi), shallow

Epicenter

40.573° N, 125.315° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 6.9 km horizontally, 5.7 km in depth

Magnitude uncertainty

±0.08

Depth from

From location

Station coverage gap

296°, poorly surrounded by stations

Stations used

10

• Ferndale, CaliforniaPopulation 1,369. Forecast89 kmW
• Fortuna, CaliforniaPopulation 12,000. Forecast98 kmW
• Chico, CaliforniaPopulation 121,345. Forecast310 kmWNW

After

1. 2.04 km SE of Ferndale, CaliforniaThu, Apr 11, 11:36 PM PST · 15149 days ago · 23 km deep · 92 km away
2. 2.73 km SE of Ferndale, CaliforniaThu, Apr 11, 11:37 PM PST · 15149 days ago · 23 km deep · 91 km away
3. 3.837 km SSW of Ferndale, CaliforniaSat, Apr 13, 7:05 AM PST · 15148 days ago · 15 km deep · 75 km away
4. 3.442 km WSW of Ferndale, CaliforniaSat, Apr 13, 10:55 PM PST · 15147 days ago · 15 km deep · 49 km away
5. 3.441 km WSW of Ferndale, CaliforniaTue, Apr 16, 6:58 AM PST · 15145 days ago · 18 km deep · 59 km away
6. 2.431 km W of Ferndale, CaliforniaWed, Apr 17, 7:55 AM PST · 15143 days ago · 17 km deep · 57 km away
7. 2.763 km WSW of Ferndale, CaliforniaThu, Apr 18, 5:51 PM PST · 15142 days ago · -1 km deep · 30 km away
8. 1.818 km W of Ferndale, CaliforniaSun, Apr 21, 4:11 AM PST · 15140 days ago · 4 km deep · 71 km away
9. 2.946 km WSW of Ferndale, CaliforniaSun, Apr 21, 1:40 PM PST · 15139 days ago · 4 km deep · 47 km away
10. 3.028 km SW of Scotia, CaliforniaTue, Apr 23, 5:59 AM PST · 15138 days ago · 9 km deep · 88 km away
11. 3.423 km SSW of Scotia, CaliforniaTue, Apr 23, 6:40 AM PST · 15138 days ago · 10 km deep · 97 km away
12. 2.9118km W of Ferndale, CATue, Apr 23, 4:36 PM PST · 15137 days ago · 22 km deep · 30 km away
13. 3.05 km NW of Fields Landing, CaliforniaSat, Apr 27, 9:44 PM PST · 15133 days ago · 23 km deep · 92 km away
14. 1.910 km S of Ferndale, CaliforniaMon, Apr 29, 8:02 AM PDT · 15132 days ago · 30 km deep · 90 km away
15. 3.119 km SSW of Ferndale, CaliforniaTue, Apr 30, 9:31 AM PDT · 15130 days ago · 14 km deep · 83 km away
16. 1.610 km WSW of Rio Dell, CaliforniaThu, May 2, 10:49 AM PDT · 15128 days ago · 18 km deep · 93 km away
17. 2.115 km WNW of Fields Landing, CaliforniaFri, May 3, 8:57 AM PDT · 15127 days ago · 14 km deep · 82 km away
18. 1.81 km W of Indianola, CaliforniaSat, May 4, 5:21 AM PDT · 15127 days ago · 4 km deep · 91 km away
19. 1.75 km WSW of Scotia, CaliforniaSat, May 4, 5:30 PM PDT · 15126 days ago · 12 km deep · 98 km away
20. 2.8155km W of Petrolia, CASat, May 4, 8:07 PM PDT · 15126 days ago · 10 km deep · 70 km away
21. 2.344 km SW of Ferndale, CaliforniaMon, May 6, 6:53 PM PDT · 15124 days ago · 21 km deep · 64 km away
22. 2.032 km SSW of Ferndale, CaliforniaTue, May 7, 5:32 PM PDT · 15123 days ago · 4 km deep · 77 km away
23. 2.25 km WSW of Indianola, CaliforniaWed, May 8, 11:28 AM PDT · 15122 days ago · 4 km deep · 86 km away
24. 2.326 km W of Samoa, CaliforniaFri, May 10, 11:25 AM PDT · 15120 days ago · 18 km deep · 76 km away
25. 3.119 km SW of Ferndale, CaliforniaSat, May 11, 9:11 AM PDT · 15119 days ago · 25 km deep · 77 km away
26. 4.3104 km W of Ferndale, CaliforniaSun, May 12, 6:55 AM PDT · 15119 days ago · 7 km deep · 21 km away
27. 3.0off the coast of Northern CaliforniaTue, May 14, 5:56 PM PDT · 15116 days ago · 2 km deep · 19 km away
28. 2.630 km SW of Ferndale, CaliforniaWed, May 15, 7:25 PM PDT · 15115 days ago · 17 km deep · 72 km away
29. 3.394 km W of Ferndale, CaliforniaFri, May 17, 4:45 PM PDT · 15113 days ago · 3 km deep · 11 km away
30. 3.911 km W of Indianola, CaliforniaSat, May 18, 5:05 AM PDT · 15113 days ago · 20 km deep · 81 km away
31. 2.586 km W of Ferndale, CaliforniaSun, May 19, 4:18 PM PDT · 15111 days ago · 4 km deep · 16 km away
32. 2.519 km SSW of Scotia, CaliforniaWed, May 22, 12:35 AM PDT · 15109 days ago · 30 km deep · 96 km away
33. 2.14 km SW of Scotia, CaliforniaWed, May 29, 5:09 AM PDT · 15102 days ago · 25 km deep · 100 km away
34. 2.021 km WNW of Indianola, CaliforniaWed, May 29, 9:05 AM PDT · 15101 days ago · 4 km deep · 75 km away
35. 1.69 km SSE of Ferndale, CaliforniaWed, May 29, 10:38 PM PDT · 15101 days ago · 20 km deep · 93 km away
36. 2.628 km SW of Ferndale, CaliforniaSun, Jun 2, 4:01 AM PDT · 15098 days ago · 24 km deep · 69 km away
37. 2.152 km SW of Ferndale, CaliforniaSun, Jun 2, 6:25 AM PDT · 15098 days ago · 19 km deep · 59 km away

Before

1. 2.237 km WSW of Ferndale, CaliforniaMon, Apr 8, 1:58 AM PST · 15153 days ago · 25 km deep · 56 km away
2. 1.827 km SW of Scotia, CaliforniaSun, Apr 7, 9:56 AM PST · 15153 days ago · 9 km deep · 90 km away
3. 4.0114 km W of Ferndale, CaliforniaSat, Apr 6, 12:40 PM PST · 15154 days ago · 5 km deep · 26 km away
4. 3.543 km SW of Ferndale, CaliforniaSat, Apr 6, 8:38 AM PST · 15154 days ago · 23 km deep · 58 km away
5. 2.9122 km WSW of Ferndale, CaliforniaFri, Apr 5, 1:00 PM PST · 15155 days ago · 4 km deep · 41 km away
6. 2.354 km W of Ferndale, CaliforniaThu, Apr 4, 1:47 PM PST · 15156 days ago · 4 km deep · 35 km away
7. 3.323 km SW of Scotia, CaliforniaWed, Apr 3, 10:12 AM PST · 15157 days ago · 20 km deep · 89 km away
8. 2.09 km S of Ferndale, CaliforniaWed, Apr 3, 5:12 AM PST · 15158 days ago · 18 km deep · 88 km away
9. 2.89 km S of Ferndale, CaliforniaTue, Apr 2, 9:53 PM PST · 15158 days ago · 18 km deep · 88 km away
10. 3.59 km S of Ferndale, CaliforniaTue, Apr 2, 6:27 PM PST · 15158 days ago · 18 km deep · 87 km away
11. 1.98 km SSW of Ferndale, CaliforniaTue, Apr 2, 3:47 PM PST · 15158 days ago · 19 km deep · 87 km away
12. 2.843 km SSW of Ferndale, CaliforniaSun, Mar 31, 11:51 AM PST · 15160 days ago · 11 km deep · 74 km away
13. 2.031 km SSW of Ferndale, CaliforniaSat, Mar 30, 2:46 AM PST · 15162 days ago · 4 km deep · 80 km away
14. 3.071 km W of Ferndale, CaliforniaFri, Mar 29, 5:44 AM PST · 15163 days ago · 4 km deep · 18 km away
15. 2.521 km WSW of Scotia, CaliforniaMon, Mar 25, 7:11 PM PST · 15166 days ago · 22 km deep · 88 km away
16. 2.831 km SW of Scotia, CaliforniaMon, Mar 25, 12:19 AM PST · 15167 days ago · 21 km deep · 86 km away
17. 1.930 km SSW of Ferndale, CaliforniaFri, Mar 22, 11:54 PM PST · 15169 days ago · 7 km deep · 81 km away
18. 2.49 km S of Ferndale, CaliforniaFri, Mar 22, 7:26 PM PST · 15169 days ago · 26 km deep · 88 km away
19. 2.932 km SW of Ferndale, CaliforniaThu, Mar 21, 7:45 AM PST · 15170 days ago · 20 km deep · 73 km away
20. 3.043 km SW of Ferndale, CaliforniaWed, Mar 20, 8:19 PM PST · 15171 days ago · 18 km deep · 62 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc46574. Read Sat, Oct 3, 2026, 3:04 AM UTC.