M1.6 earthquake 33 km SW of Ferndale, California

Magnitude

1.6 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Fri, Oct 16, 1981, 6:41 PM PDT

UTC

1981-10-17 01:41:39 UTC

Depth

22.5 km (14.0 mi), shallow

Epicenter

40.396° N, 124.575° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.8 km horizontally, 1.1 km in depth

Depth from

From location

Station coverage gap

332°, poorly surrounded by stations

Stations used

3

• Ferndale, CaliforniaPopulation 1,369. Forecast33 kmSW
• Fortuna, CaliforniaPopulation 12,000. Forecast42 kmWSW
• Chico, CaliforniaPopulation 121,345. Forecast245 kmWNW

After

1. 3.593 km WSW of Ferndale, CaliforniaFri, Oct 16, 8:26 PM PDT · 16423 days ago · 5 km deep · 65 km away
2. 2.3108 km WSW of Ferndale, CaliforniaFri, Oct 16, 10:56 PM PDT · 16423 days ago · 4 km deep · 79 km away
3. 1.615 km WSW of Ferndale, CaliforniaSat, Oct 17, 5:03 AM PDT · 16423 days ago · 24 km deep · 18 km away
4. 1.643 km SW of Ferndale, CaliforniaSat, Oct 17, 8:38 AM PDT · 16423 days ago · 32 km deep · 11 km away
5. 2.550 km WNW of Ferndale, CaliforniaSat, Oct 17, 8:58 AM PDT · 16423 days ago · 3 km deep · 42 km away
6. 1.628 km SW of Ferndale, CaliforniaSat, Oct 17, 11:52 AM PDT · 16423 days ago · 25 km deep · 5 km away
7. 1.814 km WNW of Samoa, CaliforniaSat, Oct 17, 8:26 PM PDT · 16422 days ago · 25 km deep · 55 km away
8. 1.518 km SW of Scotia, CaliforniaSun, Oct 18, 12:58 AM PDT · 16422 days ago · 22 km deep · 28 km away
9. 1.641 km SW of Ferndale, CaliforniaSun, Oct 18, 4:14 AM PDT · 16422 days ago · 20 km deep · 10 km away
10. 2.036 km SSW of Ferndale, CaliforniaSun, Oct 18, 10:46 AM PDT · 16422 days ago · 21 km deep · 12 km away
11. 1.96 km SE of Ferndale, CaliforniaSun, Oct 18, 10:03 PM PDT · 16421 days ago · 11 km deep · 36 km away
12. 1.822 km WSW of Weott, CaliforniaMon, Oct 19, 5:27 AM PDT · 16421 days ago · 4 km deep · 40 km away
13. 1.638 km WSW of Ferndale, CaliforniaMon, Oct 19, 8:48 AM PDT · 16421 days ago · 31 km deep · 9 km away
14. 2.6110 km WSW of Ferndale, CaliforniaTue, Oct 20, 2:55 AM PDT · 16420 days ago · 4 km deep · 81 km away
15. 1.539 km SSW of Ferndale, CaliforniaTue, Oct 20, 10:43 PM PDT · 16419 days ago · 25 km deep · 16 km away
16. 2.134 km SSW of Ferndale, CaliforniaTue, Oct 20, 11:52 PM PDT · 16419 days ago · 25 km deep · 12 km away
17. 3.0101 km W of Ferndale, CaliforniaWed, Oct 21, 12:06 AM PDT · 16419 days ago · 8 km deep · 76 km away
18. 1.850 km WSW of Ferndale, CaliforniaWed, Oct 21, 6:31 AM PDT · 16419 days ago · 30 km deep · 23 km away
19. 1.718 km W of Ferndale, CaliforniaWed, Oct 21, 8:51 AM PDT · 16419 days ago · 22 km deep · 19 km away
20. 1.562 km SW of Ferndale, CaliforniaWed, Oct 21, 11:45 AM PDT · 16419 days ago · 5 km deep · 29 km away
21. 1.640 km SSW of Ferndale, CaliforniaThu, Oct 22, 11:27 AM PDT · 16418 days ago · 25 km deep · 15 km away
22. 1.837 km SW of Ferndale, CaliforniaThu, Oct 22, 2:23 PM PDT · 16417 days ago · 24 km deep · 12 km away
23. 2.936 km SSW of Ferndale, CaliforniaFri, Oct 23, 2:20 AM PDT · 16417 days ago · 12 km deep · 15 km away
24. 2.015 km SSW of Ferndale, CaliforniaFri, Oct 23, 3:26 PM PDT · 16416 days ago · 23 km deep · 21 km away
25. 2.416 km SSW of Ferndale, CaliforniaFri, Oct 23, 3:27 PM PDT · 16416 days ago · 23 km deep · 20 km away
26. 2.966 km W of Indianola, CaliforniaFri, Oct 23, 3:50 PM PDT · 16416 days ago · 5 km deep · 56 km away
27. 2.256 km WSW of Ferndale, CaliforniaFri, Oct 23, 6:50 PM PDT · 16416 days ago · 23 km deep · 25 km away
28. 2.619 km WSW of Scotia, CaliforniaSat, Oct 24, 5:41 AM PDT · 16416 days ago · 26 km deep · 23 km away
29. 3.136 km SW of Ferndale, CaliforniaSat, Oct 24, 9:10 AM PDT · 16416 days ago · 28 km deep · 8 km away
30. 1.730 km W of Trinidad, CaliforniaSun, Oct 25, 5:21 AM PST · 16415 days ago · 3 km deep · 77 km away
31. 3.837 km SW of Ferndale, CaliforniaSun, Oct 25, 9:18 AM PST · 16415 days ago · 28 km deep · 8 km away
32. 2.936 km SW of Ferndale, CaliforniaSun, Oct 25, 9:21 AM PST · 16415 days ago · 27 km deep · 8 km away
33. 1.837 km SW of Ferndale, CaliforniaSun, Oct 25, 10:01 AM PST · 16415 days ago · 28 km deep · 6 km away
34. 2.419 km W of Big Lagoon, CaliforniaMon, Oct 26, 5:06 AM PST · 16414 days ago · 27 km deep · 87 km away
35. 1.632 km SW of Ferndale, CaliforniaMon, Oct 26, 11:21 AM PST · 16414 days ago · 39 km deep · 9 km away
36. 2.532 km WSW of Ferndale, CaliforniaMon, Oct 26, 12:47 PM PST · 16414 days ago · 26 km deep · 3 km away
37. 1.64 km WSW of Redcrest, CaliforniaMon, Oct 26, 1:45 PM PST · 16413 days ago · 35 km deep · 49 km away
38. 2.01 km NE of Bayview, CaliforniaMon, Oct 26, 3:32 PM PST · 16413 days ago · 11 km deep · 55 km away
39. 2.136 km SW of Ferndale, CaliforniaMon, Oct 26, 5:18 PM PST · 16413 days ago · 33 km deep · 8 km away
40. 1.945 km SW of Ferndale, CaliforniaTue, Oct 27, 3:18 PM PST · 16412 days ago · 20 km deep · 13 km away
41. 2.834 km SW of Ferndale, CaliforniaTue, Oct 27, 6:45 PM PST · 16412 days ago · 35 km deep · 9 km away
42. 1.739 km SW of Ferndale, CaliforniaWed, Oct 28, 5:39 AM PST · 16412 days ago · 23 km deep · 8 km away
43. 1.617 km WNW of Indianola, CaliforniaWed, Oct 28, 6:31 AM PST · 16412 days ago · 25 km deep · 40 km away
44. 1.643 km SW of Ferndale, CaliforniaWed, Oct 28, 10:16 AM PST · 16412 days ago · 18 km deep · 12 km away
45. 2.415 km W of Samoa, CaliforniaWed, Oct 28, 8:59 PM PST · 16411 days ago · 23 km deep · 49 km away
46. 2.911 km W of Ferndale, CaliforniaThu, Oct 29, 4:11 AM PST · 16411 days ago · 22 km deep · 24 km away
47. 2.635 km SW of Ferndale, CaliforniaThu, Oct 29, 4:14 AM PST · 16411 days ago · 25 km deep · 6 km away
48. 3.236 km SW of Ferndale, CaliforniaThu, Oct 29, 4:30 AM PST · 16411 days ago · 28 km deep · 8 km away
49. 1.638 km SW of Ferndale, CaliforniaThu, Oct 29, 8:26 AM PST · 16411 days ago · 25 km deep · 10 km away
50. 1.659 km SW of Ferndale, CaliforniaThu, Oct 29, 3:01 PM PST · 16410 days ago · 6 km deep · 27 km away
51. 2.059 km W of Ferndale, CaliforniaThu, Oct 29, 4:23 PM PST · 16410 days ago · 10 km deep · 35 km away
52. 2.63 km SE of Fortuna, CaliforniaFri, Oct 30, 2:27 AM PST · 16410 days ago · 20 km deep · 43 km away
53. 1.738 km SW of Ferndale, CaliforniaFri, Oct 30, 3:15 AM PST · 16410 days ago · 22 km deep · 10 km away
54. 2.647 km SW of Ferndale, CaliforniaFri, Oct 30, 10:01 AM PST · 16410 days ago · 21 km deep · 15 km away
55. 1.517 km W of Ferndale, CaliforniaFri, Oct 30, 1:30 PM PST · 16409 days ago · 22 km deep · 21 km away
56. 3.038 km SW of Ferndale, CaliforniaFri, Oct 30, 3:39 PM PST · 16409 days ago · 29 km deep · 8 km away
57. 3.036 km SW of Ferndale, CaliforniaFri, Oct 30, 9:05 PM PST · 16409 days ago · 28 km deep · 8 km away
58. 1.718 km WSW of Ferndale, CaliforniaSat, Oct 31, 2:52 AM PST · 16409 days ago · 22 km deep · 14 km away
59. 1.826 km SW of Ferndale, CaliforniaSat, Oct 31, 8:09 AM PST · 16409 days ago · 18 km deep · 8 km away
60. 2.616 km ESE of Pine Hills, CaliforniaSat, Oct 31, 9:58 AM PST · 16409 days ago · 24 km deep · 61 km away

The first 60 of 148.

Before

1. 2.939 km SW of Ferndale, CAFri, Oct 16, 7:20 AM PDT · 16424 days ago · 25 km deep · 8 km away
2. 2.436 km SW of Ferndale, CaliforniaFri, Oct 16, 5:26 AM PDT · 16424 days ago · 27 km deep · 9 km away
3. 2.13 km NE of Redway, CaliforniaWed, Oct 14, 10:39 AM PDT · 16426 days ago · 20 km deep · 72 km away
4. 1.754 km WSW of Ferndale, CaliforniaWed, Oct 14, 6:37 AM PDT · 16426 days ago · 30 km deep · 22 km away
5. 2.461 km WSW of Ferndale, CaliforniaWed, Oct 14, 6:01 AM PDT · 16426 days ago · 5 km deep · 32 km away
6. 1.737 km SSW of Ferndale, CaliforniaWed, Oct 14, 3:31 AM PDT · 16426 days ago · 19 km deep · 17 km away
7. 1.620 km SSW of Ferndale, CaliforniaWed, Oct 14, 12:07 AM PDT · 16426 days ago · 4 km deep · 19 km away
8. 1.58 km SW of Scotia, CaliforniaTue, Oct 13, 9:28 PM PDT · 16426 days ago · 31 km deep · 35 km away
9. 3.336 km SW of Ferndale, CaliforniaTue, Oct 13, 9:36 AM PDT · 16427 days ago · 28 km deep · 8 km away
10. 1.59 km W of Ferndale, CaliforniaTue, Oct 13, 2:01 AM PDT · 16427 days ago · 22 km deep · 28 km away
11. 2.243 km SW of Ferndale, CaliforniaMon, Oct 12, 8:20 PM PDT · 16427 days ago · 17 km deep · 11 km away
12. 1.618 km WSW of Scotia, CaliforniaMon, Oct 12, 7:10 AM PDT · 16428 days ago · 28 km deep · 24 km away
13. 2.517 km WSW of Scotia, CaliforniaMon, Oct 12, 6:59 AM PDT · 16428 days ago · 28 km deep · 25 km away
14. 1.738 km SW of Ferndale, CaliforniaSun, Oct 11, 8:46 PM PDT · 16428 days ago · 37 km deep · 6 km away
15. 1.535 km SSW of Ferndale, CaliforniaSun, Oct 11, 3:13 PM PDT · 16428 days ago · 23 km deep · 14 km away
16. 1.810 km SW of Trinity Village, CaliforniaSun, Oct 11, 2:49 AM PDT · 16429 days ago · 22 km deep · 94 km away
17. 1.779 km W of Ferndale, CaliforniaSun, Oct 11, 1:59 AM PDT · 16429 days ago · 5 km deep · 54 km away
18. 1.736 km SW of Ferndale, CaliforniaSat, Oct 10, 1:13 PM PDT · 16430 days ago · 26 km deep · 10 km away
19. 1.733 km SW of Ferndale, CaliforniaFri, Oct 9, 4:08 PM PDT · 16430 days ago · 35 km deep · 10 km away
20. 2.170 km WSW of Ferndale, CaliforniaFri, Oct 9, 12:02 PM PDT · 16431 days ago · 5 km deep · 41 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1068678. Read Sun, Oct 4, 2026, 8:32 AM UTC.