M2.2 earthquake 13 km ENE of Hydesville, California

Magnitude

2.2 (md), micro

Local time

Thu, Mar 29, 1984, 7:24 AM PST

UTC

1984-03-29 15:24:18 UTC

Depth

25.3 km (15.7 mi), shallow

Epicenter

40.609° N, 123.964° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.06

Depth from

From location

Station coverage gap

86°

Stations used

19

• Hydesville, CaliforniaPopulation 1,237. Forecast13 kmENE
• Fortuna, CaliforniaPopulation 12,000. Forecast16 kmE
• Chico, CaliforniaPopulation 121,345. Forecast205 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast887 kmNNW

After

1. 2.039 km SW of Ferndale, CaliforniaThu, Mar 29, 8:49 AM PST · 15517 days ago · 6 km deep · 60 km away
2. 2.12 km SW of Ferndale, CaliforniaFri, Mar 30, 4:44 AM PST · 15516 days ago · 23 km deep · 28 km away
3. 3.137 km SW of Ferndale, CaliforniaSat, Mar 31, 7:05 AM PST · 15515 days ago · 7 km deep · 58 km away
4. 2.441 km SW of Etna, CaliforniaMon, Apr 2, 4:26 AM PST · 15513 days ago · 4 km deep · 89 km away
5. 1.611 km SE of Hyampom, CaliforniaMon, Apr 2, 3:07 PM PST · 15513 days ago · 22 km deep · 52 km away
6. 1.827 km SW of Ferndale, CaliforniaTue, Apr 3, 4:06 PM PST · 15512 days ago · 17 km deep · 51 km away
7. 1.727 km SW of Ferndale, CaliforniaFri, Apr 6, 1:12 AM PST · 15509 days ago · 17 km deep · 50 km away
8. 2.61 km NW of Myers Flat, CaliforniaFri, Apr 6, 8:23 AM PST · 15509 days ago · 29 km deep · 38 km away
9. 1.79 km S of Hyampom, CaliforniaFri, Apr 6, 12:35 PM PST · 15509 days ago · 4 km deep · 45 km away
10. 2.263 km W of Indianola, CaliforniaSat, Apr 7, 10:39 AM PST · 15508 days ago · 6 km deep · 87 km away
11. 2.221 km WSW of Trinidad, CaliforniaMon, Apr 9, 12:46 AM PST · 15506 days ago · 10 km deep · 56 km away
12. 1.718 km N of Weaverville, CaliforniaTue, Apr 10, 6:32 PM PST · 15505 days ago · 4 km deep · 93 km away
13. 2.022 km SW of Ferndale, CaliforniaFri, Apr 13, 5:33 AM PST · 15502 days ago · 21 km deep · 44 km away
14. 1.630 km WSW of Ferndale, CaliforniaSat, Apr 14, 4:48 PM PST · 15501 days ago · 18 km deep · 56 km away
15. 3.122 km NNW of Willow Creek, CaliforniaSun, Apr 15, 6:09 PM PST · 15500 days ago · 32 km deep · 63 km away
16. 2.648 km WNW of Ferndale, CaliforniaTue, Apr 17, 5:47 AM PST · 15498 days ago · 19 km deep · 73 km away
17. 1.639 km SW of Ferndale, CaliforniaWed, Apr 18, 3:03 AM PST · 15497 days ago · 36 km deep · 61 km away
18. 1.58 km SW of Trinity Village, CaliforniaThu, Apr 19, 4:37 AM PST · 15496 days ago · 4 km deep · 39 km away
19. 2.021 km SW of Ferndale, CaliforniaThu, Apr 19, 9:52 PM PST · 15495 days ago · 20 km deep · 44 km away
20. 2.02 km WSW of Rio Dell, CaliforniaFri, Apr 20, 5:34 AM PST · 15495 days ago · 11 km deep · 19 km away
21. 3.35 km W of Redcrest, CaliforniaSat, Apr 21, 2:56 PM PST · 15494 days ago · 5 km deep · 23 km away
22. 2.334 km SSW of Ferndale, CaliforniaThu, Apr 26, 4:45 AM PST · 15489 days ago · 8 km deep · 53 km away
23. 3.162 km WSW of Ferndale, CaliforniaSun, Apr 29, 1:22 AM PST · 15486 days ago · 15 km deep · 87 km away
24. 2.766 km WSW of Ferndale, CaliforniaSun, Apr 29, 1:33 AM PST · 15486 days ago · 11 km deep · 92 km away
25. 2.319 km SW of Ferndale, CaliforniaMon, Apr 30, 9:11 AM PDT · 15485 days ago · 23 km deep · 44 km away
26. 1.717 km SSW of Scotia, CaliforniaMon, Apr 30, 6:47 PM PDT · 15485 days ago · 28 km deep · 36 km away
27. 2.825 km SSW of Ferndale, CaliforniaTue, May 1, 7:52 PM PDT · 15484 days ago · 30 km deep · 44 km away
28. 1.638 km SW of Scotia, CaliforniaTue, May 1, 8:28 PM PDT · 15484 days ago · 29 km deep · 56 km away
29. 1.628 km SSW of Ferndale, CaliforniaWed, May 2, 6:32 AM PDT · 15483 days ago · 28 km deep · 49 km away
30. 3.526 km SW of Ferndale, CaliforniaWed, May 2, 7:16 AM PDT · 15483 days ago · 24 km deep · 50 km away
31. 1.622 km SW of Ferndale, CaliforniaWed, May 2, 7:36 AM PDT · 15483 days ago · 24 km deep · 46 km away
32. 2.823 km SW of Ferndale, CaliforniaWed, May 2, 7:48 AM PDT · 15483 days ago · 23 km deep · 48 km away
33. 1.522 km SW of Ferndale, CaliforniaWed, May 2, 9:37 AM PDT · 15483 days ago · 24 km deep · 46 km away
34. 1.623 km SW of Ferndale, CaliforniaWed, May 2, 10:44 AM PDT · 15483 days ago · 23 km deep · 47 km away
35. 1.622 km SW of Ferndale, CaliforniaWed, May 2, 10:45 AM PDT · 15483 days ago · 25 km deep · 46 km away
36. 2.425 km SW of Ferndale, CaliforniaWed, May 2, 12:15 PM PDT · 15483 days ago · 23 km deep · 50 km away
37. 1.715 km WSW of Scotia, CaliforniaThu, May 3, 9:18 PM PDT · 15482 days ago · 26 km deep · 33 km away
38. 3.138 km WSW of Ferndale, CaliforniaFri, May 4, 5:03 AM PDT · 15481 days ago · 15 km deep · 64 km away
39. 1.74 km NE of Benbow, CaliforniaFri, May 4, 7:12 AM PDT · 15481 days ago · 19 km deep · 60 km away
40. 3.040 km SW of Ferndale, CaliforniaSun, May 6, 9:37 AM PDT · 15479 days ago · 20 km deep · 63 km away
41. 3.519 km N of Shelter Cove, CaliforniaSun, May 6, 6:25 PM PDT · 15479 days ago · 12 km deep · 46 km away
42. 2.017 km SW of Ferndale, CaliforniaSun, May 6, 10:01 PM PDT · 15479 days ago · 22 km deep · 42 km away
43. 2.119 km SSW of Ferndale, CaliforniaMon, May 7, 10:23 PM PDT · 15477 days ago · 27 km deep · 37 km away
44. 3.763 km W of Ferndale, CaliforniaWed, May 9, 3:00 AM PDT · 15476 days ago · 2 km deep · 88 km away
45. 2.641 km SW of Ferndale, CaliforniaWed, May 9, 7:00 AM PDT · 15476 days ago · 13 km deep · 64 km away
46. 1.925 km SSW of Ferndale, CaliforniaTue, May 15, 12:30 PM PDT · 15470 days ago · 18 km deep · 46 km away
47. 2.829 km SE of Ruth, CaliforniaWed, May 16, 8:52 AM PDT · 15469 days ago · 38 km deep · 96 km away
48. 1.63 km N of Ferndale, CaliforniaFri, May 18, 5:41 PM PDT · 15467 days ago · 19 km deep · 26 km away
49. 1.519 km NW of Mad River, CaliforniaFri, May 18, 9:05 PM PDT · 15467 days ago · 25 km deep · 24 km away
50. 2.07 km E of Trinity Village, CaliforniaSat, May 19, 8:27 AM PDT · 15466 days ago · 21 km deep · 54 km away
51. 1.92 km ESE of Myrtletown, CaliforniaMon, May 21, 4:46 AM PDT · 15464 days ago · 55 km deep · 22 km away
52. 2.869 km WSW of Ferndale, CaliforniaTue, May 22, 11:07 PM PDT · 15462 days ago · 23 km deep · 95 km away
53. 3.019 km N of Shelter Cove, CaliforniaThu, May 24, 7:53 PM PDT · 15461 days ago · 13 km deep · 47 km away
54. 3.019 km SW of Weott, CaliforniaThu, May 24, 7:55 PM PDT · 15461 days ago · 13 km deep · 45 km away
55. 1.730 km SW of Ferndale, CaliforniaFri, May 25, 5:22 PM PDT · 15460 days ago · 8 km deep · 55 km away
56. 2.246 km W of Ferndale, CaliforniaSat, May 26, 5:18 AM PDT · 15459 days ago · 4 km deep · 72 km away
57. 1.648 km W of Ferndale, CaliforniaSat, May 26, 5:21 AM PDT · 15459 days ago · 18 km deep · 74 km away
58. 1.518 km WSW of Ferndale, CaliforniaSat, May 26, 9:34 AM PDT · 15459 days ago · 22 km deep · 44 km away
59. 1.833 km SW of Ferndale, CaliforniaSat, May 26, 3:53 PM PDT · 15459 days ago · 17 km deep · 56 km away

Before

1. 1.841 km SW of Ferndale, CaliforniaThu, Mar 29, 7:22 AM PST · 15517 days ago · 4 km deep · 63 km away
2. 2.617 km WSW of Scotia, CaliforniaWed, Mar 28, 4:09 AM PST · 15518 days ago · 28 km deep · 34 km away
3. 1.919 km W of Ferndale, CaliforniaTue, Mar 27, 9:12 PM PST · 15519 days ago · 16 km deep · 45 km away
4. 1.619 km WSW of Weott, CaliforniaSat, Mar 24, 6:44 PM PST · 15522 days ago · 14 km deep · 43 km away
5. 2.018 km WSW of Weott, CaliforniaSat, Mar 24, 6:42 PM PST · 15522 days ago · 12 km deep · 43 km away
6. 1.620 km WSW of Weott, CaliforniaSat, Mar 24, 6:40 PM PST · 15522 days ago · 12 km deep · 45 km away
7. 2.041 km SW of Ferndale, CaliforniaSat, Mar 24, 3:04 PM PST · 15522 days ago · 18 km deep · 64 km away
8. 3.029 km NNW of Junction City, CaliforniaFri, Mar 23, 9:04 PM PST · 15523 days ago · 40 km deep · 82 km away
9. 2.339 km WSW of Ferndale, CaliforniaFri, Mar 23, 5:42 PM PST · 15523 days ago · 44 km deep · 65 km away
10. 3.42 km WNW of Blue Lake, CaliforniaMon, Mar 19, 1:00 PM PST · 15527 days ago · 26 km deep · 32 km away
11. 2.134 km SW of Scotia, CaliforniaSun, Mar 18, 9:26 PM PST · 15527 days ago · 22 km deep · 53 km away
12. 1.624 km ENE of Hydesville, CaliforniaSun, Mar 18, 6:32 PM PST · 15528 days ago · 20 km deep · 11 km away
13. 2.332 km WSW of Ferndale, CASun, Mar 18, 12:02 AM PST · 15528 days ago · 17 km deep · 56 km away
14. 2.133 km WSW of Ferndale, CaliforniaSat, Mar 17, 11:12 AM PST · 15529 days ago · 23 km deep · 58 km away
15. 2.13 km WSW of Hydesville, CaliforniaSat, Mar 17, 9:19 AM PST · 15529 days ago · 20 km deep · 17 km away
16. 3.637 km W of Trinidad, CaliforniaThu, Mar 15, 5:35 AM PST · 15531 days ago · 23 km deep · 72 km away
17. 2.435 km SSW of Ferndale, CaliforniaTue, Mar 13, 3:59 PM PST · 15533 days ago · 10 km deep · 56 km away
18. 1.536 km WSW of Ferndale, CaliforniaTue, Mar 13, 11:17 AM PST · 15533 days ago · 20 km deep · 62 km away
19. 1.711 km NNE of Hyampom, CaliforniaMon, Mar 12, 2:30 AM PST · 15534 days ago · 28 km deep · 48 km away
20. 1.627 km SW of Ferndale, CaliforniaSun, Mar 11, 9:54 AM PST · 15535 days ago · 26 km deep · 51 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1113261. Read Tue, Sep 22, 2026, 4:50 PM UTC.