M1.6 earthquake 26 km SW of Ferndale, California

Magnitude

1.6 (md), micro

Local time

Sun, Sep 17, 1978, 8:34 AM PDT

UTC

1978-09-17 15:34:40 UTC

Depth

24.9 km (15.4 mi), shallow

Epicenter

40.437° N, 124.515° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.5 km horizontally, 1.6 km in depth

Depth from

From location

Station coverage gap

281°, poorly surrounded by stations

Stations used

6

• Ferndale, CaliforniaPopulation 1,369. Forecast26 kmSW
• Fortuna, CaliforniaPopulation 12,000. Forecast35 kmWSW
• Chico, CaliforniaPopulation 121,345. Forecast241 kmWNW

After

1. 2.138 km SW of Ferndale, CaliforniaSun, Sep 17, 12:01 PM PDT · 17537 days ago · 22 km deep · 14 km away
2. 1.616 km SSW of Ferndale, CaliforniaSun, Sep 17, 10:03 PM PDT · 17537 days ago · 20 km deep · 18 km away
3. 1.618 km SW of Scotia, CaliforniaSun, Sep 17, 10:26 PM PDT · 17537 days ago · 30 km deep · 23 km away
4. 1.65 km SSW of Alderpoint, CaliforniaMon, Sep 18, 3:07 AM PDT · 17537 days ago · 9 km deep · 83 km away
5. 2.835 km SW of Ferndale, CaliforniaMon, Sep 18, 5:01 AM PDT · 17536 days ago · 24 km deep · 14 km away
6. 1.625 km SSW of Ferndale, CaliforniaMon, Sep 18, 7:25 AM PDT · 17536 days ago · 19 km deep · 10 km away
7. 2.4near the coast of Northern CaliforniaMon, Sep 18, 8:42 PM PDT · 17536 days ago · 19 km deep · 10 km away
8. 1.527 km WSW of Ferndale, CaliforniaTue, Sep 19, 1:45 AM PDT · 17536 days ago · 18 km deep · 2 km away
9. 1.8118 km W of Ferndale, CaliforniaTue, Sep 19, 2:21 PM PDT · 17535 days ago · 5 km deep · 96 km away
10. 1.541 km SW of Ferndale, CaliforniaWed, Sep 20, 5:57 AM PDT · 17534 days ago · 20 km deep · 17 km away
11. 2.024 km W of Indianola, CaliforniaThu, Sep 21, 5:00 PM PDT · 17533 days ago · 23 km deep · 29 km away
12. 3.717 km WSW of Burnt Ranch, CaliforniaThu, Sep 21, 8:26 PM PDT · 17533 days ago · 31 km deep · 80 km away
13. 2.015 km WSW of Burnt Ranch, CaliforniaThu, Sep 21, 8:28 PM PDT · 17533 days ago · 31 km deep · 81 km away
14. 1.615 km WSW of Scotia, CaliforniaThu, Sep 21, 10:49 PM PDT · 17533 days ago · 18 km deep · 22 km away
15. 1.913 km WSW of Burnt Ranch, CaliforniaFri, Sep 22, 5:26 AM PDT · 17532 days ago · 31 km deep · 84 km away
16. 2.36 km NNE of Myers Flat, CaliforniaSun, Sep 24, 10:07 AM PDT · 17530 days ago · 5 km deep · 60 km away
17. 2.06 km NNE of Myers Flat, CaliforniaSun, Sep 24, 4:56 PM PDT · 17530 days ago · 3 km deep · 59 km away
18. 1.66 km NE of Myers Flat, CaliforniaSun, Sep 24, 5:13 PM PDT · 17530 days ago · 1 km deep · 61 km away
19. 1.65 km NNE of Myers Flat, CaliforniaSun, Sep 24, 6:09 PM PDT · 17530 days ago · 2 km deep · 59 km away
20. 2.072 km WNW of Samoa, CaliforniaSun, Sep 24, 7:17 PM PDT · 17530 days ago · 4 km deep · 77 km away
21. 2.091 km W of Trinidad, CaliforniaSun, Sep 24, 7:21 PM PDT · 17530 days ago · 5 km deep · 93 km away
22. 2.292 km W of Trinidad, CaliforniaSun, Sep 24, 7:55 PM PDT · 17530 days ago · 4 km deep · 93 km away
23. 3.475 km WNW of Samoa, CaliforniaSun, Sep 24, 8:45 PM PDT · 17530 days ago · 5 km deep · 77 km away
24. 2.192 km W of Trinidad, CaliforniaMon, Sep 25, 12:56 AM PDT · 17530 days ago · 5 km deep · 92 km away
25. 2.190 km W of Trinidad, CaliforniaMon, Sep 25, 1:42 AM PDT · 17530 days ago · 5 km deep · 90 km away
26. 2.070 km W of Trinidad, CaliforniaMon, Sep 25, 2:10 AM PDT · 17530 days ago · 4 km deep · 77 km away
27. 2.116 km WSW of Scotia, CaliforniaMon, Sep 25, 5:26 PM PDT · 17529 days ago · 19 km deep · 21 km away
28. 2.231 km SW of Scotia, CaliforniaTue, Sep 26, 7:33 PM PDT · 17528 days ago · 10 km deep · 18 km away
29. 3.011 km ENE of Weott, CaliforniaTue, Sep 26, 8:22 PM PDT · 17528 days ago · 30 km deep · 61 km away
30. 2.322 km WSW of Weott, CaliforniaWed, Sep 27, 3:57 AM PDT · 17528 days ago · 7 km deep · 38 km away
31. 1.822 km NNW of Shelter Cove, CaliforniaWed, Sep 27, 3:58 AM PDT · 17528 days ago · 9 km deep · 37 km away
32. 1.610 km S of Ferndale, CaliforniaWed, Sep 27, 4:11 AM PDT · 17527 days ago · 18 km deep · 21 km away
33. 2.510 km S of Ferndale, CaliforniaWed, Sep 27, 4:43 AM PDT · 17527 days ago · 18 km deep · 21 km away
34. 1.788 km W of Trinidad, CaliforniaWed, Sep 27, 12:33 PM PDT · 17527 days ago · 4 km deep · 91 km away
35. 1.524 km ENE of Hydesville, CaliforniaWed, Sep 27, 2:12 PM PDT · 17527 days ago · 7 km deep · 62 km away
36. 2.625 km SSW of Ferndale, CaliforniaWed, Sep 27, 4:19 PM PDT · 17527 days ago · 19 km deep · 12 km away
37. 1.540 km SW of Ferndale, CaliforniaFri, Sep 29, 1:51 AM PDT · 17526 days ago · 20 km deep · 15 km away
38. 1.617 km SW of Scotia, CaliforniaFri, Sep 29, 3:19 PM PDT · 17525 days ago · 22 km deep · 21 km away
39. 1.8104 km W of Ferndale, CaliforniaSat, Sep 30, 9:54 AM PDT · 17524 days ago · 4 km deep · 81 km away
40. 2.615 km WSW of Ferndale, CaliforniaSun, Oct 1, 3:27 AM PDT · 17524 days ago · 17 km deep · 11 km away
41. 1.85 km NNE of Myers Flat, CaliforniaMon, Oct 2, 2:15 AM PDT · 17523 days ago · 3 km deep · 59 km away
42. 2.621 km WSW of Weott, CaliforniaTue, Oct 3, 5:43 AM PDT · 17521 days ago · 5 km deep · 38 km away
43. 3.025 km SSW of Ferndale, CaliforniaTue, Oct 3, 5:38 PM PDT · 17521 days ago · 20 km deep · 11 km away
44. 2.3106 km W of Ferndale, CaliforniaWed, Oct 4, 3:32 PM PDT · 17520 days ago · 4 km deep · 84 km away
45. 2.832 km SW of Ferndale, CaliforniaThu, Oct 5, 5:57 AM PDT · 17519 days ago · 24 km deep · 10 km away
46. 2.29 km E of Hydesville, CaliforniaThu, Oct 5, 6:22 AM PDT · 17519 days ago · 21 km deep · 46 km away
47. 4.618 km SW of Ferndale, CaliforniaFri, Oct 6, 2:26 PM PDT · 17518 days ago · 25 km deep · 8 km away
48. 2.818 km SSW of Ferndale, CaliforniaFri, Oct 6, 2:30 PM PDT · 17518 days ago · 23 km deep · 11 km away
49. 1.511 km SW of Ferndale, CaliforniaFri, Oct 6, 2:31 PM PDT · 17518 days ago · 24 km deep · 15 km away
50. 1.815 km WSW of Ferndale, CaliforniaFri, Oct 6, 2:32 PM PDT · 17518 days ago · 24 km deep · 11 km away
51. 1.618 km SW of Ferndale, CaliforniaFri, Oct 6, 2:34 PM PDT · 17518 days ago · 21 km deep · 9 km away
52. 2.318 km WSW of Ferndale, CaliforniaFri, Oct 6, 2:36 PM PDT · 17518 days ago · 25 km deep · 8 km away
53. 2.119 km SSW of Ferndale, CaliforniaFri, Oct 6, 2:37 PM PDT · 17518 days ago · 23 km deep · 10 km away
54. 2.017 km WSW of Ferndale, CaliforniaFri, Oct 6, 2:41 PM PDT · 17518 days ago · 24 km deep · 10 km away
55. 1.525 km SW of Scotia, CaliforniaFri, Oct 6, 2:42 PM PDT · 17518 days ago · 22 km deep · 19 km away
56. 3.316 km SSW of Ferndale, CaliforniaFri, Oct 6, 2:43 PM PDT · 17518 days ago · 26 km deep · 14 km away
57. 1.715 km SW of Ferndale, CaliforniaFri, Oct 6, 2:50 PM PDT · 17518 days ago · 25 km deep · 11 km away
58. 1.929 km WSW of Ferndale, CaliforniaFri, Oct 6, 3:10 PM PDT · 17518 days ago · 25 km deep · 5 km away
59. 1.918 km SSW of Ferndale, CaliforniaFri, Oct 6, 3:11 PM PDT · 17518 days ago · 23 km deep · 12 km away
60. 1.618 km SW of Ferndale, CaliforniaFri, Oct 6, 3:32 PM PDT · 17518 days ago · 23 km deep · 8 km away

The first 60 of 190.

Before

1. 2.395 km WSW of Ferndale, CaliforniaSat, Sep 16, 7:41 PM PDT · 17538 days ago · 5 km deep · 71 km away
2. 2.3114 km W of Ferndale, CaliforniaSat, Sep 16, 6:29 PM PDT · 17538 days ago · 5 km deep · 94 km away
3. 1.634 km W of Ferndale, CaliforniaSat, Sep 16, 1:48 PM PDT · 17538 days ago · 13 km deep · 23 km away
4. 1.514 km WSW of Scotia, CaliforniaSat, Sep 16, 8:45 AM PDT · 17538 days ago · 21 km deep · 23 km away
5. 1.543 km SW of Ferndale, CaliforniaFri, Sep 15, 7:50 PM PDT · 17539 days ago · 16 km deep · 18 km away
6. 1.52 km WSW of Loleta, CaliforniaFri, Sep 15, 3:28 PM PDT · 17539 days ago · 17 km deep · 31 km away
7. 2.936 km SSW of Ferndale, CaliforniaThu, Sep 14, 10:01 PM PDT · 17540 days ago · 24 km deep · 15 km away
8. 1.839 km SW of Ferndale, CaliforniaThu, Sep 14, 11:59 AM PDT · 17540 days ago · 19 km deep · 15 km away
9. 3.136 km SW of Ferndale, CaliforniaWed, Sep 13, 7:19 PM PDT · 17541 days ago · 25 km deep · 14 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1042352. Read Tue, Sep 22, 2026, 10:31 PM UTC.