M3.6 earthquake 14 km SSW of Willits, California

Magnitude

3.6 (md), minor

Local time

Sun, Feb 15, 1976, 11:12 AM PST

UTC

1976-02-15 19:12:59 UTC

Depth

10.8 km (6.7 mi), shallow

Epicenter

39.281° N, 123.406° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.1 km horizontally, 1.1 km in depth

Magnitude uncertainty

±0.11

Depth from

From location

Station coverage gap

302°, poorly surrounded by stations

Stations used

19

• Willits, CaliforniaPopulation 4,861. Forecast15 kmSSW
• Ukiah, CaliforniaPopulation 15,917. Forecast22 kmNW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast111 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast741 kmNW

After

1. 2.57 km W of Cobb, CaliforniaSun, Feb 15, 5:10 PM PST · 18489 days ago · 4 km deep · 73 km away
2. 2.17 km W of Cobb, CaliforniaSun, Feb 15, 5:10 PM PST · 18489 days ago · 3 km deep · 73 km away
3. 1.87 km W of Cobb, CaliforniaSun, Feb 15, 5:16 PM PST · 18489 days ago · 3 km deep · 73 km away
4. 1.74 km WSW of Cobb, CaliforniaTue, Feb 17, 4:32 AM PST · 18488 days ago · 2 km deep · 77 km away
5. 1.96 km WSW of Cobb, CaliforniaTue, Feb 17, 6:42 PM PST · 18487 days ago · 1 km deep · 74 km away
6. 2.16 km W of Cobb, CaliforniaThu, Feb 19, 1:41 PM PST · 18486 days ago · 3 km deep · 73 km away
7. 3.38 km ESE of Laytonville, CaliforniaThu, Feb 19, 7:50 PM PST · 18485 days ago · 25 km deep · 43 km away
8. 1.97 km W of Cobb, CaliforniaSun, Feb 22, 1:15 AM PST · 18483 days ago · 0 km deep · 72 km away
9. 2.57 km W of Cobb, CaliforniaTue, Feb 24, 3:53 PM PST · 18481 days ago · 0 km deep · 74 km away
10. 2.54 km E of Geyserville, CaliforniaTue, Feb 24, 5:25 PM PST · 18480 days ago · 4 km deep · 80 km away
11. 2.28 km WSW of Cobb, CaliforniaTue, Feb 24, 11:25 PM PST · 18480 days ago · 4 km deep · 74 km away
12. 1.58 km W of Cobb, CaliforniaThu, Feb 26, 4:22 PM PST · 18478 days ago · -1 km deep · 73 km away
13. 2.47 km WSW of Cobb, CaliforniaThu, Feb 26, 7:45 PM PST · 18478 days ago · -1 km deep · 73 km away
14. 1.57 km W of Cobb, CaliforniaMon, Mar 1, 5:17 PM PST · 18474 days ago · 2 km deep · 73 km away
15. 2.76 km W of Cobb, CaliforniaWed, Mar 3, 11:36 AM PST · 18473 days ago · 4 km deep · 74 km away
16. 1.96 km W of Cobb, CaliforniaWed, Mar 3, 12:15 PM PST · 18473 days ago · 3 km deep · 73 km away
17. 2.34 km WSW of Cobb, CaliforniaThu, Mar 4, 7:07 AM PST · 18472 days ago · 3 km deep · 76 km away
18. 3.14 km WSW of Cobb, CaliforniaThu, Mar 4, 7:08 AM PST · 18472 days ago · 1 km deep · 75 km away
19. 3.37 km WSW of Cobb, CaliforniaSat, Mar 6, 5:51 AM PST · 18470 days ago · 0 km deep · 74 km away
20. 1.78 km WSW of Cobb, CaliforniaSat, Mar 6, 12:49 PM PST · 18470 days ago · 1 km deep · 73 km away
21. 1.88 km W of Cobb, CaliforniaSun, Mar 7, 9:51 PM PST · 18468 days ago · -1 km deep · 73 km away
22. 1.97 km W of Cobb, CaliforniaMon, Mar 8, 4:58 PM PST · 18467 days ago · 3 km deep · 73 km away
23. 2.37 km W of Cobb, CaliforniaTue, Mar 9, 12:35 AM PST · 18467 days ago · 3 km deep · 73 km away
24. 1.67 km W of Cobb, CaliforniaTue, Mar 9, 12:36 AM PST · 18467 days ago · 3 km deep · 73 km away
25. 2.04 km W of Hopland, CaliforniaTue, Mar 9, 4:45 AM PST · 18467 days ago · 7 km deep · 40 km away
26. 2.16 km W of Cobb, CaliforniaTue, Mar 9, 7:07 AM PST · 18467 days ago · 0 km deep · 74 km away
27. 2.87 km W of Cobb, CaliforniaWed, Mar 10, 4:40 AM PST · 18466 days ago · 4 km deep · 73 km away
28. 1.68 km WSW of Cobb, CaliforniaSun, Mar 14, 5:21 PM PST · 18461 days ago · -1 km deep · 73 km away
29. 1.86 km S of Clear Lake Riviera, CaliforniaMon, Mar 15, 4:04 AM PST · 18461 days ago · 4 km deep · 74 km away
30. 1.66 km S of Clear Lake Riviera, CaliforniaMon, Mar 15, 4:40 AM PST · 18461 days ago · 2 km deep · 73 km away
31. 1.92 km SE of Clear Lake Riviera, CaliforniaMon, Mar 15, 12:16 PM PST · 18461 days ago · 1 km deep · 72 km away
32. 1.69 km W of Cobb, CaliforniaTue, Mar 16, 10:48 PM PST · 18459 days ago · 0 km deep · 72 km away
33. 1.88 km WSW of Cobb, CaliforniaWed, Mar 17, 5:57 PM PST · 18458 days ago · 4 km deep · 74 km away
34. 1.67 km W of Cobb, CaliforniaWed, Mar 17, 9:01 PM PST · 18458 days ago · 4 km deep · 73 km away
35. 1.98 km W of Cobb, CaliforniaThu, Mar 18, 1:56 AM PST · 18458 days ago · 0 km deep · 73 km away
36. 1.78 km WSW of Cobb, CaliforniaThu, Mar 18, 4:55 AM PST · 18458 days ago · 1 km deep · 73 km away
37. 2.78 km WSW of Cobb, CaliforniaThu, Mar 18, 4:57 AM PST · 18458 days ago · 1 km deep · 73 km away
38. 1.67 km E of Hopland, CaliforniaThu, Mar 18, 8:50 AM PST · 18458 days ago · 7 km deep · 46 km away
39. 2.27 km SW of Hopland, CaliforniaThu, Mar 18, 3:37 PM PST · 18458 days ago · 3 km deep · 43 km away
40. 2.118 km SW of Stonyford, CaliforniaFri, Mar 19, 6:16 AM PST · 18457 days ago · 8 km deep · 59 km away
41. 2.2Northern CaliforniaFri, Mar 19, 7:06 AM PST · 18457 days ago · 4 km deep · 74 km away
42. 2.117 km W of Stonyford, CaliforniaTue, Mar 23, 2:26 AM PST · 18453 days ago · 4 km deep · 58 km away
43. 1.77 km W of Cobb, CaliforniaSun, Mar 28, 3:05 AM PST · 18448 days ago · 0 km deep · 74 km away
44. 1.6Northern CaliforniaSun, Mar 28, 3:37 PM PST · 18448 days ago · 0 km deep · 72 km away
45. 1.912 km N of Cloverdale, CAMon, Mar 29, 1:42 PM PST · 18447 days ago · 3 km deep · 54 km away
46. 2.18 km N of Upper Lake, CaliforniaTue, Mar 30, 9:54 AM PST · 18446 days ago · 1 km deep · 44 km away
47. 2.16 km WSW of Cobb, CaliforniaTue, Mar 30, 6:04 PM PST · 18445 days ago · 0 km deep · 74 km away
48. 2.03 km NNW of Larkfield-Wikiup, CaliforniaTue, Mar 30, 11:06 PM PST · 18445 days ago · 7 km deep · 99 km away
49. 2.818 km NNE of Nice, CaliforniaWed, Mar 31, 4:30 PM PST · 18444 days ago · 7 km deep · 58 km away
50. 1.98 km WSW of Cobb, CaliforniaThu, Apr 1, 6:10 AM PST · 18444 days ago · 0 km deep · 74 km away
51. 1.96 km W of Cobb, CaliforniaMon, Apr 5, 4:24 AM PST · 18440 days ago · 3 km deep · 74 km away
52. 2.34 km W of Cobb, CaliforniaMon, Apr 5, 2:24 PM PST · 18440 days ago · 4 km deep · 75 km away
53. 2.49 km NNW of Redwood Valley, CaliforniaWed, Apr 7, 3:46 PM PST · 18438 days ago · 2 km deep · 17 km away
54. 1.55 km WSW of Cobb, CaliforniaFri, Apr 9, 7:29 AM PST · 18436 days ago · 4 km deep · 75 km away
55. 1.87 km E of Talmage, CaliforniaTue, Apr 13, 1:17 AM PST · 18432 days ago · 5 km deep · 32 km away
56. 1.93 km E of Talmage, CaliforniaTue, Apr 13, 4:22 AM PST · 18432 days ago · 5 km deep · 29 km away
57. 1.87 km W of Cobb, CaliforniaWed, Apr 14, 9:12 PM PST · 18430 days ago · 4 km deep · 73 km away
58. 3.17 km NE of Hopland, CaliforniaWed, Apr 14, 9:45 PM PST · 18430 days ago · 2 km deep · 41 km away
59. 3.17 km WSW of Cobb, CaliforniaThu, Apr 15, 1:08 AM PST · 18430 days ago · 1 km deep · 75 km away

Before

1. 1.67 km WSW of Cobb, CaliforniaTue, Feb 10, 10:55 PM PST · 18494 days ago · 3 km deep · 73 km away
2. 1.77 km W of Cobb, CaliforniaSun, Feb 8, 9:10 AM PST · 18497 days ago · 3 km deep · 73 km away
3. 2.316 km NE of Nice, CaliforniaSun, Feb 8, 8:24 AM PST · 18497 days ago · 8 km deep · 61 km away
4. 1.55 km E of Cloverdale, CaliforniaSun, Feb 8, 6:44 AM PST · 18497 days ago · 0 km deep · 65 km away
5. 1.76 km W of Cobb, CaliforniaSat, Feb 7, 9:00 AM PST · 18498 days ago · 4 km deep · 74 km away
6. 2.16 km W of Cobb, CaliforniaFri, Feb 6, 7:56 PM PST · 18498 days ago · 1 km deep · 73 km away
7. 1.88 km SE of Hopland, CaliforniaFri, Feb 6, 3:37 PM PST · 18499 days ago · 1 km deep · 50 km away
8. 1.77 km W of Cobb, CaliforniaMon, Feb 2, 2:32 PM PST · 18503 days ago · 3 km deep · 73 km away
9. 1.82 km S of Clearlake, CaliforniaMon, Feb 2, 5:04 AM PST · 18503 days ago · 3 km deep · 77 km away
10. 2.07 km W of Cobb, CaliforniaSun, Feb 1, 5:38 PM PST · 18503 days ago · 1 km deep · 73 km away
11. 2.422 km NE of Potter Valley, CaliforniaSun, Feb 1, 6:13 AM PST · 18504 days ago · 9 km deep · 47 km away
12. 2.319 km ENE of Potter Valley, CaliforniaSun, Feb 1, 5:13 AM PST · 18504 days ago · 10 km deep · 45 km away
13. 1.614 km SSE of Boonville, CaliforniaSat, Jan 31, 5:10 PM PST · 18504 days ago · 4 km deep · 44 km away
14. 2.17 km WSW of Cobb, CaliforniaTue, Jan 27, 12:53 AM PST · 18509 days ago · 0 km deep · 74 km away
15. 2.54 km WSW of Cobb, CaliforniaMon, Jan 26, 5:08 PM PST · 18509 days ago · 4 km deep · 76 km away
16. 3.022 km ENE of Potter Valley, CaliforniaFri, Jan 23, 12:22 PM PST · 18513 days ago · 11 km deep · 48 km away
17. 2.517 km ENE of Potter Valley, CaliforniaThu, Jan 22, 5:03 PM PST · 18513 days ago · -1 km deep · 43 km away
18. 1.814 km NE of Nice, CaliforniaThu, Jan 22, 11:15 AM PST · 18514 days ago · 7 km deep · 59 km away
19. 1.77 km WSW of Cobb, CaliforniaTue, Jan 20, 10:45 PM PST · 18515 days ago · 1 km deep · 74 km away
20. 1.87 km WSW of Cobb, CaliforniaTue, Jan 20, 9:11 PM PST · 18515 days ago · 1 km deep · 74 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1028814. Read Wed, Sep 30, 2026, 11:45 AM UTC.