M2.5 earthquake 5 km SW of Cobb, California

Magnitude

2.5 (md), micro

Local time

Sun, Nov 3, 1985, 5:53 AM PST

UTC

1985-11-03 13:53:37 UTC

Depth

1.2 km (0.8 mi), shallow

Epicenter

38.787° N, 122.774° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.1 km horizontally, 0.2 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

33°

Stations used

39

• Cobb, CaliforniaPopulation 1,778. Forecast6 kmSW
• Healdsburg, CaliforniaPopulation 11,742. Forecast21 kmNNE
• Santa Rosa, CaliforniaPopulation 178,127. Forecast39 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast664 kmNW

After

1. 1.57 km WSW of Cobb, CaliforniaFri, Nov 22, 2:45 PM PST · 14914 days ago · 2 km deep · 3 km away
2. 1.59 km SSE of Willits, CaliforniaFri, Nov 22, 3:21 PM PST · 14914 days ago · 7 km deep · 76 km away
3. 1.77 km WSW of Cobb, CaliforniaFri, Nov 22, 8:26 PM PST · 14914 days ago · 1 km deep · 3 km away
4. 1.65 km SW of Cobb, CaliforniaFri, Nov 22, 8:45 PM PST · 14914 days ago · 0 km deep · 0 km away
5. 2.55 km SW of Cobb, CaliforniaFri, Nov 22, 8:47 PM PST · 14914 days ago · 0 km deep · 0 km away
6. 2.27 km W of Cobb, CaliforniaFri, Nov 22, 9:41 PM PST · 14914 days ago · 0 km deep · 4 km away
7. 2.05 km SW of Cobb, CaliforniaSat, Nov 23, 9:28 AM PST · 14913 days ago · 4 km deep · 0 km away
8. 1.78 km WSW of Cobb, CaliforniaSat, Nov 23, 10:36 AM PST · 14913 days ago · 3 km deep · 4 km away
9. 2.15 km WSW of Cobb, CaliforniaSun, Nov 24, 1:20 PM PST · 14912 days ago · 1 km deep · 2 km away
10. 1.87 km W of Cobb, CaliforniaSun, Nov 24, 9:13 PM PST · 14912 days ago · 1 km deep · 6 km away
11. 2.026 km NE of Potter Valley, CaliforniaSun, Nov 24, 10:08 PM PST · 14912 days ago · 7 km deep · 77 km away
12. 1.98 km W of Cobb, CaliforniaMon, Nov 25, 6:26 PM PST · 14911 days ago · 0 km deep · 5 km away
13. 1.712 km WSW of Willits, CaliforniaTue, Nov 26, 10:18 AM PST · 14910 days ago · 0 km deep · 87 km away
14. 1.75 km W of Cobb, CaliforniaTue, Nov 26, 12:24 PM PST · 14910 days ago · 1 km deep · 5 km away
15. 1.96 km E of Calpella, CaliforniaTue, Nov 26, 2:53 PM PST · 14910 days ago · 3 km deep · 58 km away
16. 2.03 km ESE of Clear Lake Riviera, CaliforniaTue, Nov 26, 8:43 PM PST · 14910 days ago · 4 km deep · 19 km away
17. 1.67 km WSW of Cobb, CaliforniaTue, Nov 26, 9:23 PM PST · 14910 days ago · 0 km deep · 3 km away
18. 1.57 km WSW of Cobb, CaliforniaTue, Nov 26, 9:23 PM PST · 14910 days ago · -1 km deep · 3 km away
19. 2.07 km WSW of Cobb, CaliforniaTue, Nov 26, 9:27 PM PST · 14910 days ago · 0 km deep · 3 km away
20. 1.96 km W of Cobb, CaliforniaTue, Nov 26, 10:19 PM PST · 14910 days ago · 3 km deep · 5 km away
21. 2.68 km WSW of Cobb, CaliforniaWed, Nov 27, 3:46 AM PST · 14910 days ago · 1 km deep · 4 km away
22. 1.612 km NE of Clearlake, CaliforniaWed, Nov 27, 4:37 AM PST · 14910 days ago · 6 km deep · 35 km away
23. 1.55 km W of Cobb, CaliforniaWed, Nov 27, 8:18 AM PST · 14909 days ago · 0 km deep · 4 km away
24. 1.87 km WSW of Cobb, CaliforniaWed, Nov 27, 5:36 PM PST · 14909 days ago · 0 km deep · 2 km away
25. 1.64 km SW of Cobb, CaliforniaThu, Nov 28, 1:33 AM PST · 14909 days ago · 1 km deep · 2 km away
26. 1.97 km W of Cobb, CaliforniaThu, Nov 28, 4:31 AM PST · 14909 days ago · 0 km deep · 5 km away
27. 2.11 km WSW of Roseland, CaliforniaThu, Nov 28, 7:54 AM PST · 14908 days ago · 6 km deep · 41 km away
28. 1.77 km W of Cobb, CaliforniaThu, Nov 28, 10:45 AM PST · 14908 days ago · 4 km deep · 4 km away
29. 2.111 km SSE of Elmira, CaliforniaThu, Nov 28, 5:32 PM PST · 14908 days ago · 13 km deep · 99 km away
30. 2.83 km ESE of Rodeo, CaliforniaThu, Nov 28, 6:03 PM PST · 14908 days ago · 7 km deep · 97 km away
31. 1.99 km WSW of Cobb, CaliforniaThu, Nov 28, 10:20 PM PST · 14908 days ago · 2 km deep · 5 km away
32. 2.321 km ENE of Clearlake, CaliforniaFri, Nov 29, 12:48 AM PST · 14908 days ago · 6 km deep · 43 km away
33. 1.58 km W of Cobb, CaliforniaFri, Nov 29, 3:14 AM PST · 14908 days ago · 1 km deep · 5 km away
34. 1.65 km WSW of Cobb, CaliforniaFri, Nov 29, 5:48 AM PST · 14907 days ago · 0 km deep · 1 km away
35. 1.65 km WSW of Cobb, CaliforniaFri, Nov 29, 7:22 AM PST · 14907 days ago · 1 km deep · 3 km away
36. 2.620 km ENE of Clearlake, CaliforniaFri, Nov 29, 10:32 AM PST · 14907 days ago · 0 km deep · 41 km away
37. 2.45 km WSW of Cobb, CaliforniaFri, Nov 29, 11:51 AM PST · 14907 days ago · 1 km deep · 2 km away
38. 2.45 km SW of Cobb, CaliforniaFri, Nov 29, 5:52 PM PST · 14907 days ago · 1 km deep · 1 km away
39. 2.73 km SW of Cobb, CaliforniaFri, Nov 29, 7:15 PM PST · 14907 days ago · 1 km deep · 2 km away
40. 2.9Northern CaliforniaSat, Nov 30, 12:15 AM PST · 14907 days ago · 2 km deep · 1 km away
41. 1.7Northern CaliforniaSat, Nov 30, 12:19 AM PST · 14907 days ago · 2 km deep · 0 km away
42. 1.96 km WNW of Cobb, CaliforniaSat, Nov 30, 11:08 AM PST · 14906 days ago · 1 km deep · 5 km away
43. 1.912 km NE of Windsor, CaliforniaSat, Nov 30, 12:00 PM PST · 14906 days ago · 6 km deep · 18 km away
44. 1.93 km NNE of Healdsburg, CaliforniaSat, Nov 30, 2:00 PM PST · 14906 days ago · 6 km deep · 17 km away
45. 2.18 km WSW of Cobb, CaliforniaSat, Nov 30, 3:31 PM PST · 14906 days ago · 3 km deep · 4 km away
46. 1.910 km ESE of Hidden Valley Lake, CaliforniaSat, Nov 30, 5:45 PM PST · 14906 days ago · 5 km deep · 28 km away
47. 1.614 km ESE of Hidden Valley Lake, CaliforniaSat, Nov 30, 10:13 PM PST · 14906 days ago · -1 km deep · 31 km away
48. 1.57 km W of Cobb, CaliforniaSat, Nov 30, 11:21 PM PST · 14906 days ago · 3 km deep · 4 km away
49. 1.88 km N of Upper Lake, CaliforniaSun, Dec 1, 3:13 AM PST · 14906 days ago · 6 km deep · 52 km away
50. 2.118 km NNW of Cazadero, CaliforniaSun, Dec 1, 3:37 PM PST · 14905 days ago · 1 km deep · 36 km away
51. 1.75 km NNE of Guerneville, CaliforniaSun, Dec 1, 11:47 PM PST · 14905 days ago · 2 km deep · 32 km away
52. 1.94 km WNW of Cobb, CaliforniaMon, Dec 2, 1:38 AM PST · 14905 days ago · 2 km deep · 6 km away
53. 1.64 km S of Cobb, CaliforniaMon, Dec 2, 1:55 AM PST · 14905 days ago · 2 km deep · 5 km away
54. 1.65 km WSW of Cobb, CaliforniaMon, Dec 2, 4:10 AM PST · 14905 days ago · 0 km deep · 2 km away
55. 1.810 km WSW of Cobb, CaliforniaMon, Dec 2, 6:01 AM PST · 14904 days ago · 1 km deep · 6 km away
56. 1.85 km W of Cobb, CaliforniaMon, Dec 2, 1:44 PM PST · 14904 days ago · 0 km deep · 3 km away
57. 2.79 km W of Cobb, CaliforniaMon, Dec 2, 3:11 PM PST · 14904 days ago · -1 km deep · 5 km away
58. 1.99 km W of Cobb, CaliforniaMon, Dec 2, 3:11 PM PST · 14904 days ago · 1 km deep · 6 km away
59. 1.75 km SW of Cobb, CaliforniaMon, Dec 2, 10:56 PM PST · 14904 days ago · 0 km deep · 1 km away
60. 2.24 km SW of Cobb, CaliforniaTue, Dec 3, 6:25 AM PST · 14903 days ago · 1 km deep · 2 km away

The first 60 of 178.

From the USGS Earthquake Hazards Program and its partner networks, event nc58178. Read Wed, Sep 23, 2026, 12:52 AM UTC.