M1.9 earthquake 63 km W of Ferndale, California

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Fri, Aug 19, 1977, 5:37 AM PDT

UTC

1977-08-19 12:37:42 UTC

Depth

10.6 km (6.6 mi), shallow

Epicenter

40.545° N, 125.012° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.6 km horizontally, 1.5 km in depth

Depth from

From location

Station coverage gap

310°, poorly surrounded by stations

Stations used

15

• Ferndale, CaliforniaPopulation 1,369. Forecast63 kmW
• Fortuna, CaliforniaPopulation 12,000. Forecast72 kmW
• Chico, CaliforniaPopulation 121,345. Forecast285 kmWNW

After

1. 3.474 km W of Ferndale, CaliforniaFri, Aug 19, 6:51 PM PDT · 17940 days ago · 10 km deep · 14 km away
2. 1.831 km W of Ferndale, CaliforniaFri, Aug 19, 11:37 PM PDT · 17940 days ago · 27 km deep · 32 km away
3. 1.529 km WSW of Ferndale, CASat, Aug 20, 9:35 AM PDT · 17940 days ago · 21 km deep · 35 km away
4. 1.928 km WSW of Ferndale, CaliforniaSat, Aug 20, 10:33 AM PDT · 17940 days ago · 16 km deep · 35 km away
5. 1.913 km WSW of Redcrest, CaliforniaSat, Aug 20, 5:58 PM PDT · 17939 days ago · 32 km deep · 82 km away
6. 1.725 km SW of Ferndale, CaliforniaSat, Aug 20, 6:54 PM PDT · 17939 days ago · 18 km deep · 51 km away
7. 1.531 km WSW of Ferndale, CaliforniaSat, Aug 20, 10:09 PM PDT · 17939 days ago · 15 km deep · 32 km away
8. 1.618 km NNE of Redcrest, CaliforniaMon, Aug 22, 4:09 PM PDT · 17937 days ago · 24 km deep · 99 km away
9. 3.167 km W of Ferndale, CaliforniaTue, Aug 23, 4:42 AM PDT · 17937 days ago · 2 km deep · 12 km away
10. 2.01 km SW of Indianola, CaliforniaFri, Aug 26, 3:13 AM PDT · 17934 days ago · 9 km deep · 67 km away
11. 1.9near the coast of Northern CaliforniaFri, Aug 26, 3:13 AM PDT · 17934 days ago · 8 km deep · 66 km away
12. 1.91 km WSW of Indianola, CaliforniaFri, Aug 26, 3:53 AM PDT · 17934 days ago · 8 km deep · 66 km away
13. 1.51 km WSW of Indianola, CaliforniaFri, Aug 26, 7:05 PM PDT · 17933 days ago · 9 km deep · 66 km away
14. 1.518 km NNE of Redcrest, CaliforniaSat, Aug 27, 4:46 AM PDT · 17933 days ago · 23 km deep · 99 km away
15. 2.414 km WNW of Ferndale, CaliforniaSat, Aug 27, 11:31 AM PDT · 17933 days ago · 21 km deep · 51 km away
16. 1.835 km W of Ferndale, CaliforniaSun, Aug 28, 2:32 PM PDT · 17931 days ago · 10 km deep · 28 km away
17. 1.824 km SW of Ferndale, CaliforniaMon, Aug 29, 6:08 AM PDT · 17931 days ago · 21 km deep · 47 km away
18. 2.51 km NNW of Bayside, CaliforniaMon, Aug 29, 7:01 AM PDT · 17931 days ago · 25 km deep · 86 km away
19. 2.920 km W of Indianola, CaliforniaMon, Aug 29, 1:47 PM PDT · 17930 days ago · 23 km deep · 48 km away
20. 2.119 km WNW of Indianola, CaliforniaMon, Aug 29, 2:18 PM PDT · 17930 days ago · 24 km deep · 52 km away
21. 1.722 km SW of Scotia, CaliforniaWed, Aug 31, 11:42 PM PDT · 17928 days ago · 25 km deep · 62 km away
22. 1.636 km WSW of Ferndale, CaliforniaThu, Sep 1, 7:58 PM PDT · 17927 days ago · 23 km deep · 29 km away
23. 2.932 km SW of Ferndale, CaliforniaSat, Sep 3, 8:17 AM PDT · 17926 days ago · 17 km deep · 44 km away
24. 1.966 km W of Ferndale, CaliforniaSat, Sep 3, 5:42 PM PDT · 17925 days ago · 4 km deep · 6 km away
25. 1.952 km WNW of Indianola, CaliforniaMon, Sep 5, 1:19 PM PDT · 17923 days ago · 15 km deep · 32 km away
26. 2.218 km SW of Ferndale, CaliforniaTue, Sep 6, 3:38 AM PDT · 17923 days ago · 22 km deep · 53 km away
27. 1.627 km WSW of Ferndale, CaliforniaWed, Sep 7, 2:26 AM PDT · 17922 days ago · 23 km deep · 40 km away
28. 1.77 km ESE of Redcrest, CaliforniaThu, Sep 8, 7:01 AM PDT · 17921 days ago · 25 km deep · 99 km away
29. 1.644 km SW of Ferndale, CaliforniaThu, Sep 8, 9:21 AM PDT · 17921 days ago · 12 km deep · 43 km away
30. 2.629 km SW of Ferndale, CaliforniaThu, Sep 8, 5:47 PM PDT · 17920 days ago · 24 km deep · 44 km away
31. 1.630 km WSW of Ferndale, CaliforniaThu, Sep 15, 9:25 PM PDT · 17913 days ago · 26 km deep · 35 km away
32. 2.825 km SSW of Ferndale, CaliforniaMon, Sep 19, 12:20 AM PDT · 17910 days ago · 19 km deep · 58 km away
33. 1.812 km NE of Hydesville, CaliforniaMon, Sep 19, 5:33 PM PDT · 17909 days ago · 19 km deep · 86 km away
34. 2.544 km WNW of Ferndale, CaliforniaMon, Sep 19, 9:39 PM PDT · 17909 days ago · 19 km deep · 28 km away
35. 2.155 km W of Ferndale, CaliforniaTue, Sep 20, 5:01 AM PDT · 17909 days ago · 20 km deep · 10 km away
36. 1.967 km W of Ferndale, CaliforniaTue, Sep 20, 10:34 PM PDT · 17908 days ago · 7 km deep · 8 km away
37. 1.749 km W of Ferndale, CaliforniaWed, Sep 21, 2:59 PM PDT · 17907 days ago · 4 km deep · 18 km away
38. 1.614 km WNW of Fields Landing, CaliforniaWed, Sep 21, 5:20 PM PDT · 17907 days ago · 21 km deep · 59 km away
39. 1.669 km WSW of Ferndale, CaliforniaSat, Sep 24, 5:08 AM PDT · 17905 days ago · 15 km deep · 14 km away
40. 1.510 km ESE of Pine Hills, CaliforniaMon, Sep 26, 7:14 AM PDT · 17903 days ago · 22 km deep · 84 km away
41. 1.816 km S of Ferndale, CaliforniaFri, Sep 30, 3:04 PM PDT · 17898 days ago · 17 km deep · 63 km away
42. 1.714 km WNW of Fields Landing, CaliforniaSat, Oct 1, 9:09 AM PDT · 17898 days ago · 24 km deep · 58 km away
43. 1.822 km SSW of Ferndale, CaliforniaSat, Oct 1, 9:47 PM PDT · 17897 days ago · 27 km deep · 54 km away
44. 1.745 km W of Ferndale, CaliforniaSat, Oct 1, 10:52 PM PDT · 17897 days ago · 21 km deep · 19 km away
45. 2.145 km SW of Ferndale, CaliforniaSun, Oct 2, 7:24 AM PDT · 17897 days ago · 10 km deep · 42 km away
46. 1.522 km WSW of Weott, CaliforniaSun, Oct 2, 9:43 AM PDT · 17897 days ago · 6 km deep · 80 km away
47. 1.527 km SW of Scotia, CaliforniaSun, Oct 2, 6:08 PM PDT · 17896 days ago · 3 km deep · 69 km away
48. 1.912 km WNW of Fields Landing, CaliforniaSun, Oct 2, 10:47 PM PDT · 17896 days ago · 25 km deep · 60 km away
49. 1.812 km WNW of Fields Landing, CaliforniaSun, Oct 2, 11:34 PM PDT · 17896 days ago · 24 km deep · 59 km away
50. 1.99 km NW of Fields Landing, CaliforniaTue, Oct 4, 12:08 AM PDT · 17895 days ago · 23 km deep · 65 km away
51. 1.616 km WSW of Ferndale, CaliforniaThu, Oct 6, 5:47 AM PDT · 17893 days ago · 22 km deep · 48 km away
52. 2.316 km S of Ferndale, CaliforniaFri, Oct 7, 6:49 AM PDT · 17892 days ago · 19 km deep · 62 km away
53. 1.517 km WSW of Scotia, CaliforniaSat, Oct 8, 10:25 AM PDT · 17891 days ago · 20 km deep · 64 km away
54. 2.028 km W of Ferndale, CaliforniaSat, Oct 8, 12:20 PM PDT · 17891 days ago · 18 km deep · 35 km away
55. 2.142 km W of Ferndale, CaliforniaSun, Oct 9, 3:35 AM PDT · 17890 days ago · 25 km deep · 22 km away
56. 1.527 km SW of Ferndale, CaliforniaSun, Oct 9, 8:48 PM PDT · 17889 days ago · 23 km deep · 49 km away
57. 3.574 km W of Ferndale, CaliforniaSun, Oct 9, 9:04 PM PDT · 17889 days ago · 6 km deep · 13 km away
58. 2.3near the coast of Northern CaliforniaThu, Oct 13, 9:27 AM PDT · 17886 days ago · 21 km deep · 33 km away
59. 1.930 km W of Indianola, CaliforniaFri, Oct 14, 2:28 AM PDT · 17885 days ago · 23 km deep · 39 km away
60. 2.42 km WSW of Loleta, CaliforniaFri, Oct 14, 6:22 AM PDT · 17885 days ago · 19 km deep · 64 km away

The first 60 of 65.

Before

1. 1.824 km SW of Ferndale, CaliforniaThu, Aug 18, 3:18 PM PDT · 17941 days ago · 23 km deep · 52 km away
2. 2.227 km SSW of Ferndale, CaliforniaThu, Aug 18, 1:31 PM PDT · 17941 days ago · 22 km deep · 54 km away
3. 2.415 km SW of Scotia, CaliforniaThu, Aug 18, 2:09 AM PDT · 17942 days ago · 21 km deep · 69 km away
4. 2.010 km SSE of Ferndale, CaliforniaWed, Aug 17, 3:55 AM PDT · 17943 days ago · 3 km deep · 66 km away
5. 2.821 km SW of Ferndale, CaliforniaTue, Aug 16, 1:20 AM PDT · 17944 days ago · 23 km deep · 49 km away
6. 2.432 km NW of Shelter Cove, CaliforniaMon, Aug 15, 8:57 PM PDT · 17944 days ago · 7 km deep · 67 km away
7. 1.627 km SW of Scotia, CaliforniaMon, Aug 15, 8:06 PM PDT · 17944 days ago · 6 km deep · 68 km away
8. 1.824 km SW of Scotia, CaliforniaMon, Aug 15, 7:17 PM PDT · 17944 days ago · 5 km deep · 69 km away
9. 3.132 km NW of Shelter Cove, CaliforniaMon, Aug 15, 7:14 PM PDT · 17944 days ago · 7 km deep · 65 km away
10. 1.520 km SW of Ferndale, CaliforniaMon, Aug 15, 4:13 AM PDT · 17945 days ago · 26 km deep · 50 km away
11. 1.618 km SW of Scotia, CaliforniaSun, Aug 14, 6:10 AM PDT · 17946 days ago · 29 km deep · 66 km away
12. 1.75 km SSE of Indianola, CaliforniaSat, Aug 13, 11:27 PM PDT · 17946 days ago · 24 km deep · 83 km away
13. 2.9near the coast of Northern CaliforniaSat, Aug 13, 11:23 PM PDT · 17946 days ago · 24 km deep · 83 km away
14. 2.431 km SW of Scotia, CaliforniaSat, Aug 13, 12:13 PM PDT · 17947 days ago · 8 km deep · 66 km away
15. 3.2near the coast of Northern CaliforniaSat, Aug 13, 12:09 PM PDT · 17947 days ago · 8 km deep · 66 km away
16. 2.332 km NW of Shelter Cove, CaliforniaSat, Aug 13, 5:32 AM PDT · 17947 days ago · 8 km deep · 67 km away
17. 1.67 km W of Samoa, CaliforniaSat, Aug 13, 2:25 AM PDT · 17947 days ago · 23 km deep · 70 km away
18. 2.127 km SW of Scotia, CaliforniaSat, Aug 13, 2:01 AM PDT · 17947 days ago · 7 km deep · 67 km away
19. 1.826 km SW of Scotia, CaliforniaSat, Aug 13, 1:45 AM PDT · 17947 days ago · 6 km deep · 67 km away
20. 1.625 km SW of Scotia, CaliforniaFri, Aug 12, 11:54 PM PDT · 17947 days ago · 6 km deep · 68 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1036413. Read Fri, Oct 2, 2026, 7:37 AM UTC.