M1.6 earthquake 8 km E of Willits, California

Magnitude

1.6 (md), micro

Local time

Thu, Dec 25, 1986, 11:35 AM PST

UTC

1986-12-25 19:35:07 UTC

Depth

8.6 km (5.3 mi), shallow

Epicenter

39.407° N, 123.256° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.26

Depth from

From location

Station coverage gap

134°

Stations used

6

• Willits, CaliforniaPopulation 4,861. Forecast9 kmE
• Ukiah, CaliforniaPopulation 15,917. Forecast29 kmN
• Santa Rosa, CaliforniaPopulation 178,127. Forecast117 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast744 kmNW

After

1. 2.25 km WSW of Cobb, CaliforniaThu, Dec 25, 3:16 PM PST · 14515 days ago · 0 km deep · 79 km away
2. 3.06 km W of Cobb, CaliforniaFri, Dec 26, 2:29 AM PST · 14515 days ago · 2 km deep · 76 km away
3. 2.17 km W of Cobb, CaliforniaFri, Dec 26, 5:46 PM PST · 14514 days ago · 2 km deep · 76 km away
4. 1.821 km ENE of Potter Valley, CaliforniaSat, Dec 27, 6:10 PM PST · 14513 days ago · 0 km deep · 33 km away
5. 1.98 km E of Hidden Valley Lake, CaliforniaSun, Dec 28, 7:44 PM PST · 14512 days ago · 9 km deep · 96 km away
6. 1.79 km W of Cobb, CaliforniaSun, Dec 28, 10:45 PM PST · 14512 days ago · 0 km deep · 74 km away
7. 1.79 km W of Cobb, CaliforniaMon, Dec 29, 12:01 AM PST · 14512 days ago · 0 km deep · 74 km away
8. 1.94 km WNW of Cobb, CaliforniaMon, Dec 29, 1:31 AM PST · 14512 days ago · 2 km deep · 76 km away
9. 2.111 km W of Cobb, CaliforniaMon, Dec 29, 7:09 AM PST · 14512 days ago · 4 km deep · 75 km away
10. 1.84 km WSW of Cobb, CaliforniaMon, Dec 29, 10:24 PM PST · 14511 days ago · 0 km deep · 79 km away
11. 1.55 km WSW of Cobb, CaliforniaTue, Dec 30, 7:12 AM PST · 14511 days ago · 3 km deep · 79 km away
12. 2.27 km W of Cobb, CaliforniaTue, Dec 30, 2:58 PM PST · 14510 days ago · 4 km deep · 76 km away
13. 1.77 km W of Cobb, CaliforniaWed, Dec 31, 8:19 AM PST · 14510 days ago · 3 km deep · 76 km away
14. 1.85 km SW of Cobb, CaliforniaWed, Dec 31, 9:36 AM PST · 14510 days ago · -1 km deep · 80 km away
15. 2.27 km W of Cobb, CaliforniaWed, Dec 31, 10:33 AM PST · 14510 days ago · 1 km deep · 75 km away
16. 3.17 km W of Cobb, CaliforniaWed, Dec 31, 10:33 AM PST · 14510 days ago · 1 km deep · 76 km away
17. 2.87 km W of Cobb, CaliforniaWed, Dec 31, 10:34 AM PST · 14510 days ago · -1 km deep · 75 km away
18. 1.77 km W of Cobb, CaliforniaWed, Dec 31, 10:35 AM PST · 14510 days ago · 1 km deep · 75 km away
19. 1.77 km W of Cobb, CaliforniaWed, Dec 31, 10:36 AM PST · 14510 days ago · -1 km deep · 77 km away
20. 2.07 km W of Cobb, CaliforniaWed, Dec 31, 10:38 AM PST · 14510 days ago · 0 km deep · 75 km away
21. 1.88 km ESE of Hidden Valley Lake, CaliforniaWed, Dec 31, 5:35 PM PST · 14509 days ago · 7 km deep · 97 km away
22. 1.87 km W of Cobb, CaliforniaThu, Jan 1, 5:03 AM PST · 14509 days ago · 2 km deep · 76 km away
23. 2.57 km W of Cobb, CaliforniaFri, Jan 2, 12:20 PM PST · 14508 days ago · 4 km deep · 76 km away
24. 2.17 km W of Cobb, CaliforniaFri, Jan 2, 3:34 PM PST · 14507 days ago · 4 km deep · 76 km away
25. 1.66 km W of Cobb, CaliforniaSat, Jan 3, 11:00 AM PST · 14507 days ago · 1 km deep · 76 km away
26. 1.96 km W of Cobb, CaliforniaSun, Jan 4, 3:50 AM PST · 14506 days ago · 3 km deep · 76 km away
27. 2.15 km SW of Cobb, CaliforniaSun, Jan 4, 5:03 AM PST · 14506 days ago · 0 km deep · 81 km away
28. 1.68 km W of Cobb, CaliforniaMon, Jan 5, 2:43 AM PST · 14505 days ago · 1 km deep · 75 km away
29. 2.45 km SW of Cobb, CaliforniaMon, Jan 5, 7:57 AM PST · 14505 days ago · 1 km deep · 81 km away
30. 2.16 km NNE of Covelo, CaliforniaMon, Jan 5, 3:32 PM PST · 14504 days ago · 11 km deep · 49 km away
31. 1.717 km WSW of Elk Creek, CaliforniaMon, Jan 5, 5:14 PM PST · 14504 days ago · 3 km deep · 48 km away
32. 1.66 km W of Cobb, CaliforniaMon, Jan 5, 6:24 PM PST · 14504 days ago · 3 km deep · 76 km away
33. 1.74 km WNW of Cobb, CaliforniaTue, Jan 6, 6:24 AM PST · 14504 days ago · 2 km deep · 76 km away
34. 2.04 km WSW of North Lakeport, CaliforniaTue, Jan 6, 11:10 AM PST · 14504 days ago · 4 km deep · 45 km away
35. 1.65 km E of Covelo, CaliforniaTue, Jan 6, 2:31 PM PST · 14503 days ago · 4 km deep · 44 km away
36. 3.45 km SW of Cobb, CaliforniaWed, Jan 7, 4:13 AM PST · 14503 days ago · 0 km deep · 80 km away
37. 1.96 km SW of Cobb, CaliforniaWed, Jan 7, 4:20 AM PST · 14503 days ago · 1 km deep · 81 km away
38. 2.47 km E of Hidden Valley Lake, CaliforniaThu, Jan 8, 3:30 PM PST · 14501 days ago · 8 km deep · 95 km away
39. 2.14 km WSW of Cobb, CaliforniaThu, Jan 8, 10:07 PM PST · 14501 days ago · 1 km deep · 79 km away
40. 1.75 km ESE of Talmage, CaliforniaFri, Jan 9, 12:48 AM PST · 14501 days ago · 5 km deep · 35 km away
41. 2.75 km W of Cobb, CaliforniaFri, Jan 9, 8:15 PM PST · 14500 days ago · 1 km deep · 76 km away
42. 2.36 km WSW of Cobb, CaliforniaFri, Jan 9, 9:44 PM PST · 14500 days ago · 2 km deep · 78 km away
43. 1.59 km ESE of Hidden Valley Lake, CaliforniaSat, Jan 10, 4:17 AM PST · 14500 days ago · 7 km deep · 98 km away
44. 1.74 km WSW of Cobb, CaliforniaSun, Jan 11, 5:51 AM PST · 14499 days ago · 1 km deep · 78 km away
45. 1.65 km WSW of Cobb, CaliforniaSun, Jan 11, 4:31 PM PST · 14498 days ago · 1 km deep · 78 km away
46. 1.64 km WNW of Cobb, CaliforniaSun, Jan 11, 8:41 PM PST · 14498 days ago · 2 km deep · 76 km away
47. 1.68 km SE of Covelo, CaliforniaTue, Jan 13, 5:31 AM PST · 14497 days ago · 4 km deep · 38 km away
48. 1.68 km W of Cobb, CaliforniaTue, Jan 13, 1:00 PM PST · 14497 days ago · 2 km deep · 76 km away
49. 2.28 km ENE of Hopland, CaliforniaTue, Jan 13, 1:02 PM PST · 14497 days ago · 6 km deep · 49 km away
50. 1.73 km SW of Cobb, CaliforniaTue, Jan 13, 5:02 PM PST · 14496 days ago · 1 km deep · 81 km away
51. 2.52 km WSW of Leggett, CaliforniaWed, Jan 14, 1:32 AM PST · 14496 days ago · 4 km deep · 65 km away
52. 1.66 km W of Cobb, CaliforniaWed, Jan 14, 6:17 AM PST · 14496 days ago · 2 km deep · 76 km away
53. 1.98 km WSW of Cobb, CaliforniaWed, Jan 14, 12:33 PM PST · 14496 days ago · 3 km deep · 78 km away
54. 1.710 km NNW of Redwood Valley, CaliforniaWed, Jan 14, 5:27 PM PST · 14495 days ago · 4 km deep · 6 km away
55. 1.710 km SSW of Cloverdale, CaliforniaThu, Jan 15, 2:36 AM PST · 14495 days ago · 30 km deep · 78 km away
56. 1.77 km E of Hidden Valley Lake, CaliforniaThu, Jan 15, 4:39 AM PST · 14495 days ago · 8 km deep · 96 km away
57. 2.97 km W of Cobb, CaliforniaThu, Jan 15, 5:30 AM PST · 14495 days ago · 4 km deep · 76 km away
58. 2.47 km W of Cobb, CaliforniaThu, Jan 15, 6:32 AM PST · 14495 days ago · 4 km deep · 76 km away
59. 2.010 km E of Hidden Valley Lake, CaliforniaThu, Jan 15, 7:03 AM PST · 14495 days ago · 10 km deep · 95 km away
60. 2.27 km E of Hidden Valley Lake, CaliforniaThu, Jan 15, 10:25 AM PST · 14495 days ago · 8 km deep · 94 km away

The first 60 of 172.

Before

1. 1.76 km WSW of Cobb, CaliforniaThu, Dec 25, 11:19 AM PST · 14516 days ago · -1 km deep · 78 km away
2. 2.16 km WSW of Cobb, CaliforniaThu, Dec 25, 7:13 AM PST · 14516 days ago · 0 km deep · 78 km away
3. 1.79 km W of Cobb, CaliforniaWed, Dec 24, 10:00 PM PST · 14516 days ago · -1 km deep · 75 km away
4. 1.613 km E of Comptche, CaliforniaWed, Dec 24, 9:26 PM PST · 14516 days ago · 3 km deep · 22 km away
5. 1.74 km WSW of Cobb, CaliforniaWed, Dec 24, 6:59 PM PST · 14516 days ago · 1 km deep · 79 km away
6. 1.610 km ESE of Hidden Valley Lake, CaliforniaWed, Dec 24, 3:13 AM PST · 14517 days ago · 7 km deep · 98 km away
7. 1.78 km ESE of Hidden Valley Lake, CaliforniaTue, Dec 23, 8:30 PM PST · 14517 days ago · 4 km deep · 97 km away
8. 2.39 km WSW of Cobb, CaliforniaTue, Dec 23, 4:32 PM PST · 14517 days ago · 2 km deep · 78 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1146126. Read Tue, Sep 22, 2026, 9:11 AM UTC.