M2.4 earthquake 8 km ESE of Hydesville, California

Magnitude

2.4 (md), micro

Local time

Thu, Mar 28, 1985, 4:14 PM PST

UTC

1985-03-29 00:14:45 UTC

Depth

19.6 km (12.2 mi), shallow

Epicenter

40.516° N, 124.002° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.7 km horizontally, 0.8 km in depth

Magnitude uncertainty

±0.36

Depth from

From location

Station coverage gap

146°

Stations used

9

• Hydesville, CaliforniaPopulation 1,237. Forecast9 kmESE
• Fortuna, CaliforniaPopulation 12,000. Forecast16 kmSE
• Chico, CaliforniaPopulation 121,345. Forecast204 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast881 kmNNW

After

1. 3.071 km W of Ferndale, CaliforniaFri, Mar 29, 5:44 AM PST · 15152 days ago · 4 km deep · 94 km away
2. 1.815 km N of Shelter Cove, CaliforniaFri, Mar 29, 3:33 PM PST · 15152 days ago · 23 km deep · 39 km away
3. 2.031 km SSW of Ferndale, CaliforniaSat, Mar 30, 2:46 AM PST · 15151 days ago · 4 km deep · 42 km away
4. 2.843 km SSW of Ferndale, CaliforniaSun, Mar 31, 11:51 AM PST · 15150 days ago · 11 km deep · 55 km away
5. 1.72 km ESE of Garberville, CaliforniaSun, Mar 31, 10:45 PM PST · 15149 days ago · 20 km deep · 51 km away
6. 1.96 km WNW of Covelo, CaliforniaMon, Apr 1, 4:29 PM PST · 15149 days ago · 6 km deep · 98 km away
7. 1.98 km SSW of Ferndale, CaliforniaTue, Apr 2, 3:47 PM PST · 15148 days ago · 19 km deep · 25 km away
8. 3.59 km S of Ferndale, CaliforniaTue, Apr 2, 6:27 PM PST · 15148 days ago · 18 km deep · 24 km away
9. 2.89 km S of Ferndale, CaliforniaTue, Apr 2, 9:53 PM PST · 15147 days ago · 18 km deep · 23 km away
10. 2.09 km S of Ferndale, CaliforniaWed, Apr 3, 5:12 AM PST · 15147 days ago · 18 km deep · 23 km away
11. 3.323 km SW of Scotia, CaliforniaWed, Apr 3, 10:12 AM PST · 15147 days ago · 20 km deep · 32 km away
12. 2.354 km W of Ferndale, CaliforniaThu, Apr 4, 1:47 PM PST · 15146 days ago · 4 km deep · 76 km away
13. 2.715 km S of Scotia, CaliforniaSat, Apr 6, 7:09 AM PST · 15144 days ago · 21 km deep · 22 km away
14. 3.543 km SW of Ferndale, CaliforniaSat, Apr 6, 8:38 AM PST · 15144 days ago · 23 km deep · 61 km away
15. 1.827 km SW of Scotia, CaliforniaSun, Apr 7, 9:56 AM PST · 15143 days ago · 9 km deep · 36 km away
16. 2.237 km WSW of Ferndale, CaliforniaMon, Apr 8, 1:58 AM PST · 15142 days ago · 25 km deep · 58 km away
17. 1.65 km SSW of Redcrest, CaliforniaMon, Apr 8, 4:33 AM PST · 15142 days ago · 21 km deep · 18 km away
18. 2.314 km SSW of Scotia, CaliforniaMon, Apr 8, 6:16 AM PST · 15142 days ago · 29 km deep · 22 km away
19. 1.83 km WSW of Myers Flat, CaliforniaWed, Apr 10, 3:23 AM PST · 15140 days ago · 5 km deep · 30 km away
20. 2.18 km NE of Hydesville, CaliforniaWed, Apr 10, 6:48 PM PST · 15140 days ago · 18 km deep · 9 km away
21. 2.04 km SE of Ferndale, CaliforniaThu, Apr 11, 11:36 PM PST · 15138 days ago · 23 km deep · 19 km away
22. 2.73 km SE of Ferndale, CaliforniaThu, Apr 11, 11:37 PM PST · 15138 days ago · 23 km deep · 20 km away
23. 3.837 km SSW of Ferndale, CaliforniaSat, Apr 13, 7:05 AM PST · 15137 days ago · 15 km deep · 49 km away
24. 3.442 km WSW of Ferndale, CaliforniaSat, Apr 13, 10:55 PM PST · 15136 days ago · 15 km deep · 64 km away
25. 1.712 km ENE of Redcrest, CaliforniaSun, Apr 14, 2:28 AM PST · 15136 days ago · 24 km deep · 16 km away
26. 3.441 km WSW of Ferndale, CaliforniaTue, Apr 16, 6:58 AM PST · 15134 days ago · 18 km deep · 59 km away
27. 2.431 km W of Ferndale, CaliforniaWed, Apr 17, 7:55 AM PST · 15133 days ago · 17 km deep · 54 km away
28. 2.763 km WSW of Ferndale, CaliforniaThu, Apr 18, 5:51 PM PST · 15132 days ago · -1 km deep · 84 km away
29. 2.314 km WSW of Weott, CaliforniaFri, Apr 19, 5:12 AM PST · 15131 days ago · 17 km deep · 27 km away
30. 1.612 km NNE of Laytonville, CaliforniaFri, Apr 19, 6:30 PM PST · 15131 days ago · 6 km deep · 95 km away
31. 1.818 km W of Ferndale, CaliforniaSun, Apr 21, 4:11 AM PST · 15129 days ago · 4 km deep · 40 km away
32. 2.946 km WSW of Ferndale, CaliforniaSun, Apr 21, 1:40 PM PST · 15129 days ago · 4 km deep · 67 km away
33. 2.513 km NNE of Laytonville, CaliforniaSun, Apr 21, 3:59 PM PST · 15129 days ago · 10 km deep · 95 km away
34. 1.78 km SW of Weott, CaliforniaTue, Apr 23, 2:04 AM PST · 15127 days ago · 4 km deep · 28 km away
35. 3.028 km SW of Scotia, CaliforniaTue, Apr 23, 5:59 AM PST · 15127 days ago · 9 km deep · 37 km away
36. 3.423 km SSW of Scotia, CaliforniaTue, Apr 23, 6:40 AM PST · 15127 days ago · 10 km deep · 31 km away
37. 1.911 km WSW of Weott, CaliforniaSat, Apr 27, 8:30 PM PST · 15123 days ago · 4 km deep · 28 km away
38. 3.05 km NW of Fields Landing, CaliforniaSat, Apr 27, 9:44 PM PST · 15122 days ago · 23 km deep · 35 km away
39. 1.910 km S of Ferndale, CaliforniaMon, Apr 29, 8:02 AM PDT · 15121 days ago · 30 km deep · 21 km away
40. 3.119 km SSW of Ferndale, CaliforniaTue, Apr 30, 9:31 AM PDT · 15120 days ago · 14 km deep · 32 km away
41. 2.16 km NW of Alderpoint, CaliforniaThu, May 2, 10:12 AM PDT · 15118 days ago · 21 km deep · 44 km away
42. 1.610 km WSW of Rio Dell, CaliforniaThu, May 2, 10:49 AM PDT · 15118 days ago · 18 km deep · 19 km away
43. 2.115 km NW of Shelter Cove, CaliforniaThu, May 2, 10:16 PM PDT · 15118 days ago · 13 km deep · 48 km away
44. 2.115 km WNW of Fields Landing, CaliforniaFri, May 3, 8:57 AM PDT · 15117 days ago · 14 km deep · 43 km away
45. 1.81 km W of Indianola, CaliforniaSat, May 4, 5:21 AM PDT · 15116 days ago · 4 km deep · 28 km away
46. 2.916 km W of Shelter Cove, CaliforniaSat, May 4, 11:47 AM PDT · 15116 days ago · 2 km deep · 59 km away
47. 1.75 km WSW of Scotia, CaliforniaSat, May 4, 5:30 PM PDT · 15116 days ago · 12 km deep · 15 km away
48. 2.344 km SW of Ferndale, CaliforniaMon, May 6, 6:53 PM PDT · 15114 days ago · 21 km deep · 59 km away
49. 2.032 km SSW of Ferndale, CaliforniaTue, May 7, 5:32 PM PDT · 15113 days ago · 4 km deep · 45 km away
50. 2.25 km WSW of Indianola, CaliforniaWed, May 8, 11:28 AM PDT · 15112 days ago · 4 km deep · 30 km away
51. 1.65 km SSE of Benbow, CaliforniaThu, May 9, 7:52 PM PDT · 15111 days ago · 15 km deep · 59 km away
52. 2.326 km W of Samoa, CaliforniaFri, May 10, 11:25 AM PDT · 15110 days ago · 18 km deep · 57 km away
53. 3.119 km SW of Ferndale, CaliforniaSat, May 11, 9:11 AM PDT · 15109 days ago · 25 km deep · 36 km away
54. 1.917 km W of Junction City, CaliforniaSun, May 12, 7:40 AM PDT · 15108 days ago · 2 km deep · 67 km away
55. 1.95 km NW of Shelter Cove, CaliforniaMon, May 13, 4:25 AM PDT · 15107 days ago · 16 km deep · 51 km away
56. 3.0off the coast of Northern CaliforniaTue, May 14, 5:56 PM PDT · 15106 days ago · 2 km deep · 98 km away
57. 2.410 km NNE of Shelter Cove, CaliforniaTue, May 14, 10:45 PM PDT · 15105 days ago · 20 km deep · 45 km away
58. 2.630 km SW of Ferndale, CaliforniaWed, May 15, 7:25 PM PDT · 15105 days ago · 17 km deep · 46 km away
59. 3.911 km W of Indianola, CaliforniaSat, May 18, 5:05 AM PDT · 15102 days ago · 20 km deep · 36 km away
60. 2.913km SSE of Willow Creek, CATue, May 21, 9:27 AM PDT · 15099 days ago · 13 km deep · 50 km away

The first 60 of 64.

Before

1. 2.322 km S of Ruth, CaliforniaWed, Mar 27, 6:46 PM PST · 15154 days ago · 8 km deep · 78 km away
2. 1.621 km S of Ruth, CaliforniaWed, Mar 27, 6:38 PM PST · 15154 days ago · 6 km deep · 78 km away
3. 2.521 km WSW of Scotia, CaliforniaMon, Mar 25, 7:11 PM PST · 15156 days ago · 22 km deep · 30 km away
4. 2.831 km SW of Scotia, CaliforniaMon, Mar 25, 12:19 AM PST · 15156 days ago · 21 km deep · 40 km away
5. 1.930 km SSW of Ferndale, CaliforniaFri, Mar 22, 11:54 PM PST · 15158 days ago · 7 km deep · 41 km away
6. 2.49 km S of Ferndale, CaliforniaFri, Mar 22, 7:26 PM PST · 15159 days ago · 26 km deep · 23 km away
7. 1.54 km N of Laytonville, CaliforniaThu, Mar 21, 12:25 PM PST · 15160 days ago · 11 km deep · 98 km away
8. 2.932 km SW of Ferndale, CaliforniaThu, Mar 21, 7:45 AM PST · 15160 days ago · 20 km deep · 46 km away
9. 3.043 km SW of Ferndale, CaliforniaWed, Mar 20, 8:19 PM PST · 15161 days ago · 18 km deep · 59 km away
10. 1.827 km WSW of Leggett, CaliforniaTue, Mar 19, 2:27 PM PST · 15162 days ago · 2 km deep · 86 km away
11. 2.312 km W of Indianola, CaliforniaMon, Mar 18, 4:49 AM PST · 15163 days ago · 19 km deep · 38 km away
12. 1.832 km SSW of Ferndale, CaliforniaSat, Mar 16, 3:17 AM PST · 15165 days ago · 4 km deep · 44 km away
13. 2.761 km WSW of Ferndale, CaliforniaFri, Mar 15, 1:34 PM PST · 15166 days ago · 25 km deep · 80 km away
14. 2.411 km NW of Ruth, CaliforniaThu, Mar 14, 4:26 PM PST · 15167 days ago · 29 km deep · 54 km away
15. 3.226 km NE of Willow Creek, CaliforniaThu, Mar 14, 4:14 PM PST · 15167 days ago · 34 km deep · 82 km away
16. 2.010 km SSE of Leggett, CaliforniaWed, Mar 13, 5:17 AM PST · 15168 days ago · 6 km deep · 87 km away
17. 2.63 km ESE of Scotia, CaliforniaSun, Mar 3, 9:20 PM PST · 15178 days ago · 18 km deep · 8 km away
18. 3.035 km W of Big Lagoon, CaliforniaSun, Mar 3, 6:55 PM PST · 15178 days ago · 17 km deep · 84 km away
19. 2.637 km W of Big Lagoon, CaliforniaSun, Mar 3, 6:08 PM PST · 15178 days ago · 4 km deep · 87 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc45883. Read Tue, Sep 22, 2026, 4:55 PM UTC.