M1.8 earthquake 8 km WSW of Cobb, California

Magnitude

1.8 (md), micro

Local time

Mon, Jul 8, 1985, 1:34 AM PDT

UTC

1985-07-08 08:34:25 UTC

Depth

2.2 km (1.4 mi), shallow

Epicenter

38.802° N, 122.814° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.6 km in depth

Magnitude uncertainty

±0.13

Depth from

From location

Station coverage gap

83°

Stations used

13

• Cobb, CaliforniaPopulation 1,778. Forecast8 kmWSW
• Healdsburg, CaliforniaPopulation 11,742. Forecast22 kmNNE
• Santa Rosa, CaliforniaPopulation 178,127. Forecast41 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast668 kmNW

After

1. 2.56 km WSW of Eldridge, CaliforniaThu, Jul 11, 10:38 PM PDT · 15048 days ago · 7 km deep · 57 km away
2. 2.57 km SSE of Suisun, CaliforniaFri, Jul 12, 5:37 AM PDT · 15047 days ago · 0 km deep · 99 km away
3. 1.75 km SW of Cobb, CaliforniaFri, Jul 12, 10:08 AM PDT · 15047 days ago · 0 km deep · 5 km away
4. 1.73 km SW of Cobb, CaliforniaFri, Jul 12, 1:36 PM PDT · 15047 days ago · 1 km deep · 6 km away
5. 2.16 km WSW of Eldridge, CaliforniaFri, Jul 12, 10:54 PM PDT · 15047 days ago · 6 km deep · 57 km away
6. 2.36 km ESE of Suisun, CaliforniaFri, Jul 12, 11:44 PM PDT · 15047 days ago · 5 km deep · 98 km away
7. 1.7Northern CaliforniaSat, Jul 13, 4:05 AM PDT · 15046 days ago · 6 km deep · 57 km away
8. 3.37 km W of Cobb, CaliforniaSat, Jul 13, 4:22 AM PDT · 15046 days ago · 0 km deep · 2 km away
9. 1.77 km W of Cobb, CaliforniaSat, Jul 13, 4:22 AM PDT · 15046 days ago · 1 km deep · 3 km away
10. 1.59 km W of Cobb, CaliforniaSat, Jul 13, 4:23 AM PDT · 15046 days ago · -1 km deep · 2 km away
11. 1.87 km W of Cobb, CaliforniaSat, Jul 13, 4:23 AM PDT · 15046 days ago · 1 km deep · 2 km away
12. 1.88 km W of Cobb, CaliforniaSat, Jul 13, 4:25 AM PDT · 15046 days ago · 1 km deep · 3 km away
13. 1.65 km SSE of Cobb, CaliforniaSat, Jul 13, 4:06 PM PDT · 15046 days ago · 16 km deep · 11 km away
14. 2.27 km SSW of Colusa, CaliforniaSun, Jul 14, 1:55 AM PDT · 15046 days ago · 15 km deep · 76 km away
15. 1.58 km WSW of Cobb, CaliforniaSun, Jul 14, 6:59 PM PDT · 15045 days ago · 3 km deep · 1 km away
16. 1.66 km WSW of Cobb, CaliforniaSun, Jul 14, 7:12 PM PDT · 15045 days ago · 3 km deep · 2 km away
17. 1.810 km S of Kelseyville, CaliforniaMon, Jul 15, 7:12 AM PDT · 15044 days ago · 4 km deep · 10 km away
18. 2.024 km NNE of Potter Valley, CaliforniaMon, Jul 15, 3:13 PM PDT · 15044 days ago · 4 km deep · 83 km away
19. 2.110 km S of Kelseyville, CaliforniaTue, Jul 16, 4:50 AM PDT · 15043 days ago · 4 km deep · 10 km away
20. 2.34 km WSW of Cobb, CaliforniaTue, Jul 16, 10:39 AM PDT · 15043 days ago · 1 km deep · 4 km away
21. 1.67 km WSW of Cobb, CaliforniaTue, Jul 16, 11:13 AM PDT · 15043 days ago · 1 km deep · 2 km away
22. 1.86 km W of Cobb, CaliforniaTue, Jul 16, 1:07 PM PDT · 15043 days ago · 3 km deep · 3 km away
23. 2.26 km W of Cobb, CaliforniaTue, Jul 16, 1:23 PM PDT · 15043 days ago · 3 km deep · 2 km away
24. 1.96 km WSW of Cobb, CaliforniaWed, Jul 17, 2:13 AM PDT · 15043 days ago · 3 km deep · 2 km away
25. 2.57 km W of Cobb, CaliforniaWed, Jul 17, 11:00 AM PDT · 15042 days ago · 3 km deep · 1 km away
26. 1.76 km W of Cobb, CaliforniaWed, Jul 17, 5:45 PM PDT · 15042 days ago · 3 km deep · 2 km away
27. 2.06 km WSW of Cobb, CaliforniaFri, Jul 19, 3:23 AM PDT · 15040 days ago · 1 km deep · 2 km away
28. 1.86 km WSW of Cobb, CaliforniaFri, Jul 19, 3:23 AM PDT · 15040 days ago · 1 km deep · 2 km away
29. 2.85 km W of Cobb, CaliforniaFri, Jul 19, 8:49 AM PDT · 15040 days ago · 0 km deep · 4 km away
30. 1.85 km W of Cobb, CaliforniaFri, Jul 19, 8:50 AM PDT · 15040 days ago · 0 km deep · 4 km away
31. 1.67 km WSW of Cobb, CaliforniaFri, Jul 19, 3:16 PM PDT · 15040 days ago · 1 km deep · 1 km away
32. 1.713 km NE of Hidden Valley Lake, CaliforniaSat, Jul 20, 8:02 AM PDT · 15039 days ago · 14 km deep · 34 km away
33. 1.87 km NW of Cobb, CaliforniaSat, Jul 20, 9:28 AM PDT · 15039 days ago · 4 km deep · 9 km away
34. 1.67 km SE of Willits, CaliforniaSat, Jul 20, 9:00 PM PDT · 15039 days ago · 6 km deep · 74 km away
35. 1.66 km W of Glen Ellen, CaliforniaSun, Jul 21, 6:34 AM PDT · 15038 days ago · 3 km deep · 51 km away
36. 2.18 km W of Cobb, CaliforniaMon, Jul 22, 6:54 PM PDT · 15037 days ago · -1 km deep · 2 km away
37. 1.97 km W of Cobb, CaliforniaWed, Jul 24, 9:09 PM PDT · 15035 days ago · 1 km deep · 1 km away
38. 1.79 km ESE of Hidden Valley Lake, CaliforniaThu, Jul 25, 12:47 AM PDT · 15035 days ago · 7 km deep · 32 km away
39. 1.76 km WNW of Cobb, CaliforniaThu, Jul 25, 11:25 AM PDT · 15034 days ago · 1 km deep · 4 km away
40. 1.78 km SW of Cobb, CaliforniaThu, Jul 25, 11:29 AM PDT · 15034 days ago · 3 km deep · 3 km away
41. 1.66 km W of Cobb, CaliforniaThu, Jul 25, 12:07 PM PDT · 15034 days ago · 3 km deep · 3 km away
42. 3.57 km WSW of Cobb, CaliforniaThu, Jul 25, 9:20 PM PDT · 15034 days ago · 2 km deep · 1 km away
43. 3.57 km WSW of Cobb, CaliforniaThu, Jul 25, 9:21 PM PDT · 15034 days ago · 3 km deep · 1 km away
44. 2.18 km W of Cobb, CaliforniaThu, Jul 25, 9:21 PM PDT · 15034 days ago · 0 km deep · 1 km away
45. 1.97 km WSW of Cobb, CaliforniaThu, Jul 25, 9:22 PM PDT · 15034 days ago · 1 km deep · 0 km away
46. 1.87 km WSW of Cobb, CaliforniaThu, Jul 25, 9:22 PM PDT · 15034 days ago · 1 km deep · 1 km away
47. 2.27 km W of Cobb, CaliforniaThu, Jul 25, 9:23 PM PDT · 15034 days ago · 1 km deep · 2 km away
48. 1.68 km W of Cobb, CaliforniaFri, Jul 26, 3:20 AM PDT · 15033 days ago · 1 km deep · 2 km away
49. 1.67 km W of Cobb, CaliforniaFri, Jul 26, 6:48 AM PDT · 15033 days ago · 0 km deep · 3 km away
50. 1.910 km S of Comptche, CaliforniaFri, Jul 26, 7:15 AM PDT · 15033 days ago · 5 km deep · 79 km away
51. 1.67 km W of Cobb, CaliforniaSat, Jul 27, 3:59 AM PDT · 15032 days ago · 1 km deep · 1 km away
52. 2.027 km N of Potter Valley, CaliforniaSat, Jul 27, 4:08 AM PDT · 15032 days ago · 4 km deep · 89 km away
53. 1.95 km SW of Cobb, CaliforniaSun, Jul 28, 1:10 PM PDT · 15031 days ago · 0 km deep · 4 km away
54. 1.67 km W of Cobb, CaliforniaSun, Jul 28, 7:42 PM PDT · 15031 days ago · 3 km deep · 2 km away
55. 2.15 km WSW of Cobb, CaliforniaMon, Jul 29, 2:57 PM PDT · 15030 days ago · 0 km deep · 3 km away
56. 3.35 km WSW of Cobb, CaliforniaMon, Jul 29, 2:57 PM PDT · 15030 days ago · 0 km deep · 3 km away
57. 1.76 km WSW of Cobb, CaliforniaMon, Jul 29, 3:12 PM PDT · 15030 days ago · 0 km deep · 2 km away
58. 1.610 km W of Cobb, CaliforniaTue, Jul 30, 8:50 PM PDT · 15029 days ago · 2 km deep · 2 km away
59. 1.78 km W of Cobb, CaliforniaTue, Jul 30, 8:56 PM PDT · 15029 days ago · 0 km deep · 3 km away
60. 1.74 km E of Cloverdale, CaliforniaWed, Jul 31, 4:01 PM PDT · 15028 days ago · 22 km deep · 13 km away

The first 60 of 182.

From the USGS Earthquake Hazards Program and its partner networks, event nc1129563. Read Tue, Sep 22, 2026, 9:17 PM UTC.