M2.1 earthquake 8 km W of Cobb, California

Magnitude

2.1 (md), micro

Local time

Thu, Jul 25, 1985, 9:21 PM PDT

UTC

1985-07-26 04:21:54 UTC

Depth

0.2 km (0.1 mi), shallow

Epicenter

38.810° N, 122.817° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.9 km in depth

Depth from

From location

Station coverage gap

97°

Stations used

11

• Cobb, CaliforniaPopulation 1,778. Forecast8 kmW
• Healdsburg, CaliforniaPopulation 11,742. Forecast23 kmNNE
• Santa Rosa, CaliforniaPopulation 178,127. Forecast42 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast669 kmNW

After

1. 1.96 km W of Cobb, CaliforniaSat, Aug 10, 12:34 PM PDT · 15018 days ago · 1 km deep · 3 km away
2. 2.16 km W of Cobb, CaliforniaSat, Aug 10, 12:34 PM PDT · 15018 days ago · 0 km deep · 3 km away
3. 1.58 km WSW of Cobb, CaliforniaSat, Aug 10, 12:40 PM PDT · 15018 days ago · 4 km deep · 1 km away
4. 1.713 km N of Brooktrails, CaliforniaSat, Aug 10, 5:05 PM PDT · 15018 days ago · 6 km deep · 96 km away
5. 1.94 km W of Cobb, CaliforniaSat, Aug 10, 6:22 PM PDT · 15018 days ago · 0 km deep · 4 km away
6. 1.85 km WNW of Cobb, CaliforniaMon, Aug 12, 8:18 AM PDT · 15016 days ago · 2 km deep · 6 km away
7. 2.19 km E of Hidden Valley Lake, CaliforniaMon, Aug 12, 11:04 AM PDT · 15016 days ago · 7 km deep · 32 km away
8. 1.77 km W of Cobb, CaliforniaMon, Aug 12, 10:51 PM PDT · 15016 days ago · 0 km deep · 1 km away
9. 2.19 km WSW of Cobb, CaliforniaTue, Aug 13, 11:29 AM PDT · 15015 days ago · 1 km deep · 1 km away
10. 1.56 km W of Cobb, CaliforniaTue, Aug 13, 5:56 PM PDT · 15015 days ago · 3 km deep · 2 km away
11. 2.67 km WSW of Cobb, CaliforniaWed, Aug 14, 7:00 AM PDT · 15014 days ago · 0 km deep · 1 km away
12. 2.67 km W of Cobb, CaliforniaWed, Aug 14, 9:18 AM PDT · 15014 days ago · 3 km deep · 1 km away
13. 1.67 km WSW of Cobb, CaliforniaWed, Aug 14, 9:33 AM PDT · 15014 days ago · 0 km deep · 1 km away
14. 2.16 km WSW of Cobb, CaliforniaWed, Aug 14, 11:55 AM PDT · 15014 days ago · 4 km deep · 2 km away
15. 1.90 km ESE of Redwood Valley, CaliforniaThu, Aug 15, 12:21 AM PDT · 15013 days ago · 6 km deep · 60 km away
16. 1.69 km NE of Hopland, CaliforniaThu, Aug 15, 6:26 AM PDT · 15013 days ago · 6 km deep · 32 km away
17. 2.05 km SW of Cobb, CaliforniaThu, Aug 15, 1:47 PM PDT · 15013 days ago · 2 km deep · 4 km away
18. 2.08 km WSW of Cobb, CaliforniaFri, Aug 16, 3:32 PM PDT · 15012 days ago · 4 km deep · 2 km away
19. 2.16 km W of Cobb, CaliforniaSat, Aug 17, 12:41 AM PDT · 15011 days ago · 1 km deep · 2 km away
20. 2.022 km WSW of Williams, CaliforniaSat, Aug 17, 12:31 PM PDT · 15011 days ago · 3 km deep · 48 km away
21. 1.613 km ENE of Clearlake Oaks, CaliforniaSat, Aug 17, 6:25 PM PDT · 15011 days ago · 5 km deep · 37 km away
22. 2.03 km W of Cobb, CaliforniaSat, Aug 17, 9:26 PM PDT · 15011 days ago · 0 km deep · 5 km away
23. 1.52 km NNW of Clearlake, CaliforniaSat, Aug 17, 10:16 PM PDT · 15011 days ago · 2 km deep · 24 km away
24. 1.97 km W of Cobb, CaliforniaSun, Aug 18, 10:16 PM PDT · 15010 days ago · 3 km deep · 0 km away
25. 1.910 km SE of Hopland, CaliforniaMon, Aug 19, 12:50 PM PDT · 15009 days ago · 29 km deep · 21 km away
26. 1.87 km W of Cobb, CaliforniaMon, Aug 19, 1:45 PM PDT · 15009 days ago · 3 km deep · 2 km away
27. 1.86 km W of Cobb, CaliforniaMon, Aug 19, 1:53 PM PDT · 15009 days ago · 3 km deep · 2 km away
28. 1.66 km NNE of Cloverdale, CaliforniaMon, Aug 19, 5:12 PM PDT · 15009 days ago · 5 km deep · 15 km away
29. 1.66 km WNW of Cobb, CaliforniaMon, Aug 19, 10:35 PM PDT · 15009 days ago · 1 km deep · 3 km away
30. 2.09 km SSE of Willits, CaliforniaTue, Aug 20, 3:26 PM PDT · 15008 days ago · 6 km deep · 72 km away
31. 2.35 km W of Cobb, CaliforniaTue, Aug 20, 3:32 PM PDT · 15008 days ago · -1 km deep · 4 km away
32. 2.26 km NW of Cobb, CaliforniaTue, Aug 20, 10:19 PM PDT · 15008 days ago · -1 km deep · 6 km away
33. 2.85 km W of Cobb, CaliforniaWed, Aug 21, 1:57 AM PDT · 15007 days ago · 1 km deep · 4 km away
34. 1.65 km WSW of Cobb, CaliforniaWed, Aug 21, 2:12 PM PDT · 15007 days ago · 1 km deep · 2 km away
35. 1.76 km NE of Brooktrails, CaliforniaWed, Aug 21, 11:38 PM PDT · 15007 days ago · 7 km deep · 86 km away
36. 1.55 km SW of Cobb, CaliforniaThu, Aug 22, 3:09 AM PDT · 15006 days ago · 1 km deep · 5 km away
37. 1.55 km WSW of Cobb, CaliforniaThu, Aug 22, 12:14 PM PDT · 15006 days ago · 0 km deep · 4 km away
38. 1.85 km WSW of Cobb, CaliforniaThu, Aug 22, 12:38 PM PDT · 15006 days ago · 0 km deep · 4 km away
39. 2.07 km W of Cobb, CaliforniaThu, Aug 22, 2:22 PM PDT · 15006 days ago · 3 km deep · 1 km away
40. 1.98 km WSW of Cobb, CaliforniaFri, Aug 23, 9:08 PM PDT · 15005 days ago · 3 km deep · 1 km away
41. 2.28 km WSW of Cobb, CaliforniaFri, Aug 23, 9:14 PM PDT · 15005 days ago · 3 km deep · 1 km away
42. 2.93 km NNE of Clearlake, CaliforniaSat, Aug 24, 6:13 AM PDT · 15004 days ago · 1 km deep · 26 km away
43. 1.63 km NNE of Clearlake, CaliforniaSat, Aug 24, 7:55 AM PDT · 15004 days ago · -1 km deep · 27 km away
44. 1.97 km WSW of Cobb, CaliforniaSat, Aug 24, 9:35 AM PDT · 15004 days ago · 4 km deep · 1 km away
45. 2.05 km WNW of Cobb, CaliforniaSat, Aug 24, 6:15 PM PDT · 15004 days ago · 1 km deep · 4 km away
46. 1.96 km WSW of Cobb, CaliforniaSat, Aug 24, 7:01 PM PDT · 15004 days ago · 3 km deep · 2 km away
47. 1.63 km N of Clearlake, CaliforniaSat, Aug 24, 8:59 PM PDT · 15004 days ago · -1 km deep · 26 km away
48. 1.69 km WSW of Cobb, CaliforniaSun, Aug 25, 1:49 AM PDT · 15003 days ago · 1 km deep · 1 km away
49. 1.66 km NNE of Hopland, CaliforniaSun, Aug 25, 5:14 PM PDT · 15003 days ago · 0 km deep · 34 km away
50. 2.19 km NNW of Kenwood, CaliforniaMon, Aug 26, 4:41 AM PDT · 15002 days ago · 6 km deep · 41 km away
51. 1.67 km WSW of Cobb, CaliforniaTue, Aug 27, 1:56 AM PDT · 15001 days ago · 0 km deep · 1 km away
52. 2.113 km NNW of Moskowite Corner, CaliforniaTue, Aug 27, 9:47 AM PDT · 15001 days ago · 0 km deep · 55 km away
53. 1.86 km WSW of Cobb, CaliforniaTue, Aug 27, 6:12 PM PDT · 15001 days ago · 0 km deep · 2 km away
54. 1.86 km WSW of Cobb, CaliforniaTue, Aug 27, 6:13 PM PDT · 15001 days ago · 1 km deep · 2 km away
55. 2.20 km S of Brooktrails, CaliforniaTue, Aug 27, 11:20 PM PDT · 15001 days ago · -1 km deep · 85 km away
56. 1.58 km W of Cobb, CaliforniaWed, Aug 28, 4:41 AM PDT · 15000 days ago · 1 km deep · 1 km away
57. 2.013 km NW of Moskowite Corner, CaliforniaWed, Aug 28, 8:25 AM PDT · 15000 days ago · 0 km deep · 55 km away
58. 2.513 km NW of Moskowite Corner, CaliforniaWed, Aug 28, 9:01 AM PDT · 15000 days ago · 0 km deep · 55 km away
59. 2.015 km NNW of Moskowite Corner, CaliforniaWed, Aug 28, 11:00 AM PDT · 15000 days ago · 15 km deep · 56 km away
60. 1.614 km NNW of Moskowite Corner, CaliforniaThu, Aug 29, 12:55 AM PDT · 14999 days ago · 3 km deep · 56 km away

The first 60 of 186.

From the USGS Earthquake Hazards Program and its partner networks, event nc51757. Read Tue, Sep 22, 2026, 6:30 PM UTC.