M2.9 earthquake 43 km SW of Ferndale, California

Magnitude

2.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, Aug 5, 1978, 9:13 PM PDT

UTC

1978-08-06 04:13:23 UTC

Depth

18.8 km (11.7 mi), shallow

Epicenter

40.305° N, 124.635° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.0 km horizontally, 0.9 km in depth

Depth from

From location

Station coverage gap

274°, poorly surrounded by stations

Stations used

12

• Ferndale, CaliforniaPopulation 1,369. Forecast44 kmSW
• Fortuna, CaliforniaPopulation 12,000. Forecast52 kmSW
• Chico, CaliforniaPopulation 121,345. Forecast247 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast896 kmNW

After

1. 1.838 km WSW of Ferndale, CaliforniaSat, Aug 5, 9:43 PM PDT · 17590 days ago · 30 km deep · 17 km away
2. 1.79 km S of Ferndale, CaliforniaSun, Aug 6, 6:17 AM PDT · 17589 days ago · 18 km deep · 38 km away
3. 1.58 km SSW of Scotia, CaliforniaMon, Aug 7, 7:03 AM PDT · 17588 days ago · 25 km deep · 43 km away
4. 2.36 km S of Ferndale, CaliforniaMon, Aug 7, 8:56 AM PDT · 17588 days ago · 8 km deep · 39 km away
5. 2.142 km SW of Ferndale, CaliforniaMon, Aug 7, 6:43 PM PDT · 17588 days ago · 19 km deep · 1 km away
6. 1.831 km SSW of Ferndale, CaliforniaMon, Aug 7, 8:32 PM PDT · 17588 days ago · 19 km deep · 15 km away
7. 1.69 km S of Ferndale, CaliforniaTue, Aug 8, 3:31 AM PDT · 17587 days ago · 18 km deep · 37 km away
8. 1.75 km ENE of Redcrest, CaliforniaTue, Aug 8, 5:35 AM PDT · 17587 days ago · 22 km deep · 64 km away
9. 1.523 km NE of Redcrest, CaliforniaTue, Aug 8, 12:57 PM PDT · 17587 days ago · 23 km deep · 79 km away
10. 1.847 km WNW of Indianola, CaliforniaTue, Aug 8, 8:21 PM PDT · 17587 days ago · 7 km deep · 55 km away
11. 2.726 km SSW of Ferndale, CaliforniaWed, Aug 9, 4:46 AM PDT · 17586 days ago · 19 km deep · 20 km away
12. 1.610 km S of Ferndale, CaliforniaFri, Aug 11, 1:35 AM PDT · 17584 days ago · 18 km deep · 36 km away
13. 1.775 km WSW of Ferndale, CaliforniaFri, Aug 11, 8:28 AM PDT · 17584 days ago · 4 km deep · 44 km away
14. 1.832 km SW of Ferndale, CaliforniaFri, Aug 11, 9:48 AM PDT · 17584 days ago · 28 km deep · 13 km away
15. 1.845 km SW of Ferndale, CaliforniaSat, Aug 12, 3:39 AM PDT · 17583 days ago · 21 km deep · 4 km away
16. 2.823 km SSW of Ferndale, CaliforniaSat, Aug 12, 1:48 PM PDT · 17583 days ago · 30 km deep · 23 km away
17. 2.593 km WSW of Ferndale, CaliforniaSat, Aug 12, 2:03 PM PDT · 17583 days ago · 6 km deep · 61 km away
18. 2.113 km SSE of Mad River, CaliforniaSun, Aug 13, 8:15 AM PDT · 17582 days ago · -1 km deep · 98 km away
19. 2.139 km WSW of Ferndale, CaliforniaSun, Aug 13, 9:27 AM PDT · 17582 days ago · 27 km deep · 11 km away
20. 2.922 km SSW of Ferndale, CaliforniaSun, Aug 13, 5:11 PM PDT · 17582 days ago · 29 km deep · 24 km away
21. 1.871 km WSW of Ferndale, CaliforniaSun, Aug 13, 7:14 PM PDT · 17582 days ago · 4 km deep · 39 km away
22. 1.521 km WNW of Samoa, CaliforniaMon, Aug 14, 2:17 AM PDT · 17581 days ago · 20 km deep · 65 km away
23. 2.498 km W of Ferndale, CaliforniaMon, Aug 14, 11:52 PM PDT · 17580 days ago · 3 km deep · 67 km away
24. 2.627 km SSW of Ferndale, CaliforniaTue, Aug 15, 4:07 AM PDT · 17580 days ago · 13 km deep · 22 km away
25. 2.275 km WSW of Ferndale, CaliforniaTue, Aug 15, 7:01 AM PDT · 17580 days ago · 10 km deep · 41 km away
26. 1.62 km E of Garberville, CaliforniaTue, Aug 15, 11:24 AM PDT · 17580 days ago · 28 km deep · 77 km away
27. 3.025 km SSW of Ferndale, CaliforniaWed, Aug 16, 12:42 AM PDT · 17579 days ago · 19 km deep · 22 km away
28. 1.826 km SSW of Ferndale, CaliforniaWed, Aug 16, 12:43 AM PDT · 17579 days ago · 20 km deep · 19 km away
29. 3.824 km SSW of Ferndale, CaliforniaWed, Aug 16, 12:45 AM PDT · 17579 days ago · 19 km deep · 22 km away
30. 2.027 km SSW of Ferndale, CaliforniaWed, Aug 16, 12:49 AM PDT · 17579 days ago · 19 km deep · 19 km away
31. 2.025 km SSW of Ferndale, CaliforniaWed, Aug 16, 12:51 AM PDT · 17579 days ago · 20 km deep · 20 km away
32. 1.725 km SSW of Ferndale, CaliforniaWed, Aug 16, 12:53 AM PDT · 17579 days ago · 21 km deep · 19 km away
33. 1.625 km SSW of Ferndale, CaliforniaWed, Aug 16, 12:56 AM PDT · 17579 days ago · 19 km deep · 21 km away
34. 1.625 km SSW of Ferndale, CaliforniaWed, Aug 16, 1:13 AM PDT · 17579 days ago · 19 km deep · 20 km away
35. 2.323 km SSW of Ferndale, CaliforniaWed, Aug 16, 1:36 AM PDT · 17579 days ago · 20 km deep · 24 km away
36. 1.624 km SW of Ferndale, CaliforniaWed, Aug 16, 1:48 AM PDT · 17579 days ago · 20 km deep · 20 km away
37. 1.626 km SW of Ferndale, CaliforniaWed, Aug 16, 2:29 AM PDT · 17579 days ago · 19 km deep · 18 km away
38. 2.023 km SSW of Ferndale, CaliforniaWed, Aug 16, 2:36 AM PDT · 17579 days ago · 18 km deep · 23 km away
39. 1.825 km SSW of Ferndale, CaliforniaWed, Aug 16, 2:39 AM PDT · 17579 days ago · 19 km deep · 22 km away
40. 1.523 km SSW of Ferndale, CaliforniaWed, Aug 16, 3:07 AM PDT · 17579 days ago · 20 km deep · 24 km away
41. 2.025 km SSW of Ferndale, CaliforniaWed, Aug 16, 7:33 AM PDT · 17579 days ago · 19 km deep · 21 km away
42. 3.025 km SSW of Ferndale, CaliforniaWed, Aug 16, 9:51 AM PDT · 17579 days ago · 19 km deep · 21 km away
43. 1.626 km SW of Ferndale, CaliforniaWed, Aug 16, 11:52 AM PDT · 17579 days ago · 19 km deep · 18 km away
44. 1.727 km SSW of Ferndale, CaliforniaWed, Aug 16, 1:59 PM PDT · 17579 days ago · 19 km deep · 18 km away
45. 1.515 km SSW of Ferndale, CaliforniaWed, Aug 16, 6:30 PM PDT · 17579 days ago · 7 km deep · 30 km away
46. 1.627 km SW of Ferndale, CaliforniaWed, Aug 16, 7:24 PM PDT · 17579 days ago · 19 km deep · 17 km away
47. 1.89 km S of Ferndale, CaliforniaWed, Aug 16, 9:51 PM PDT · 17579 days ago · 19 km deep · 36 km away
48. 2.3near the coast of Northern CaliforniaThu, Aug 17, 12:45 PM PDT · 17578 days ago · 19 km deep · 21 km away
49. 2.0near the coast of Northern CaliforniaThu, Aug 17, 2:23 PM PDT · 17578 days ago · 18 km deep · 48 km away
50. 1.545 km SW of Ferndale, CaliforniaFri, Aug 18, 9:45 PM PDT · 17577 days ago · 16 km deep · 3 km away
51. 2.032 km W of Trinidad, CaliforniaFri, Aug 18, 10:32 PM PDT · 17576 days ago · 15 km deep · 81 km away
52. 2.824 km SSW of Ferndale, CaliforniaSat, Aug 19, 3:02 AM PDT · 17576 days ago · 19 km deep · 23 km away
53. 1.610 km S of Ferndale, CaliforniaSat, Aug 19, 12:38 PM PDT · 17576 days ago · 18 km deep · 36 km away
54. 1.530 km WNW of Samoa, CaliforniaSat, Aug 19, 2:21 PM PDT · 17576 days ago · 19 km deep · 68 km away
55. 1.625 km SW of Ferndale, CaliforniaSat, Aug 19, 5:32 PM PDT · 17576 days ago · 18 km deep · 19 km away
56. 2.435 km W of Ferndale, CaliforniaSat, Aug 19, 9:51 PM PDT · 17576 days ago · 24 km deep · 25 km away
57. 2.343 km SW of Ferndale, CaliforniaSun, Aug 20, 3:54 AM PDT · 17575 days ago · 22 km deep · 2 km away
58. 3.328 km SW of Ferndale, CaliforniaSun, Aug 20, 11:42 AM PDT · 17575 days ago · 23 km deep · 16 km away
59. 2.828 km SW of Ferndale, CaliforniaSun, Aug 20, 11:44 AM PDT · 17575 days ago · 27 km deep · 15 km away
60. 2.527 km SW of Ferndale, CaliforniaSun, Aug 20, 1:32 PM PDT · 17575 days ago · 23 km deep · 16 km away

The first 60 of 181.

Before

1. 2.2near the coast of Northern CaliforniaSat, Aug 5, 9:42 AM PDT · 17590 days ago · 26 km deep · 23 km away
2. 3.583 km WSW of Ferndale, CaliforniaFri, Aug 4, 4:08 AM PDT · 17591 days ago · 32 km deep · 50 km away
3. 2.410 km WNW of Hyampom, CaliforniaThu, Aug 3, 6:55 PM PDT · 17592 days ago · 32 km deep · 98 km away
4. 1.734 km SSW of Ferndale, CaliforniaThu, Aug 3, 2:59 AM PDT · 17592 days ago · 25 km deep · 14 km away
5. 2.539 km SW of Ferndale, CaliforniaThu, Aug 3, 12:52 AM PDT · 17592 days ago · 23 km deep · 7 km away
6. 1.939 km SW of Ferndale, CaliforniaThu, Aug 3, 12:06 AM PDT · 17592 days ago · 21 km deep · 4 km away
7. 3.135 km SSW of Ferndale, CaliforniaWed, Aug 2, 11:44 PM PDT · 17592 days ago · 26 km deep · 12 km away
8. 1.622 km WSW of Weott, CaliforniaWed, Aug 2, 9:25 PM PDT · 17593 days ago · 4 km deep · 39 km away
9. 2.778 km W of Ferndale, CaliforniaWed, Aug 2, 5:43 PM PDT · 17593 days ago · 4 km deep · 61 km away
10. 1.92 km NE of Fieldbrook, CaliforniaWed, Aug 2, 11:39 AM PDT · 17593 days ago · 19 km deep · 91 km away
11. 1.834 km SW of Ferndale, CaliforniaWed, Aug 2, 4:40 AM PDT · 17593 days ago · 25 km deep · 9 km away
12. 2.229 km WNW of Cleone, CaliforniaWed, Aug 2, 4:06 AM PDT · 17593 days ago · 4 km deep · 89 km away
13. 3.317 km ESE of Blue Lake, CaliforniaTue, Aug 1, 10:32 PM PDT · 17593 days ago · 32 km deep · 89 km away
14. 2.96 km SW of Redcrest, CaliforniaTue, Aug 1, 4:23 PM PDT · 17594 days ago · 26 km deep · 53 km away
15. 2.35 km W of Scotia, CaliforniaMon, Jul 31, 5:24 PM PDT · 17595 days ago · 21 km deep · 44 km away
16. 1.632 km SW of Ferndale, CaliforniaMon, Jul 31, 6:02 AM PDT · 17595 days ago · 31 km deep · 11 km away
17. 2.99 km S of Benbow, CaliforniaSun, Jul 30, 2:36 AM PDT · 17596 days ago · -1 km deep · 80 km away
18. 2.122 km WSW of Weott, CaliforniaSat, Jul 29, 11:55 AM PDT · 17597 days ago · 2 km deep · 40 km away
19. 1.814 km SSW of Ferndale, CaliforniaFri, Jul 28, 10:35 AM PDT · 17598 days ago · 26 km deep · 31 km away
20. 1.89 km S of Ferndale, CaliforniaThu, Jul 27, 4:31 PM PDT · 17599 days ago · 18 km deep · 36 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1041439. Read Fri, Oct 2, 2026, 4:36 PM UTC.