M1.6 earthquake 7 km W of Cobb, California

Magnitude

1.6 (md), micro

Local time

Tue, Nov 24, 1981, 10:07 PM PST

UTC

1981-11-25 06:07:07 UTC

Depth

3.6 km (2.2 mi), shallow

Epicenter

38.813° N, 122.805° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.1 km horizontally, 0.3 km in depth

Magnitude uncertainty

±0.17

Depth from

From location

Station coverage gap

32°

Stations used

29

• Cobb, CaliforniaPopulation 1,778. Forecast7 kmW
• Clearlake, CaliforniaPopulation 15,182. Forecast22 kmSW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast42 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast668 kmNW

After

1. 1.67 km W of Cobb, CaliforniaTue, Nov 24, 10:07 PM PST · 16373 days ago · 1 km deep · 2 km away
2. 2.320 km NE of Potter Valley, CaliforniaWed, Nov 25, 2:27 AM PST · 16373 days ago · 7 km deep · 70 km away
3. 1.81 km N of Willits, CaliforniaWed, Nov 25, 2:37 PM PST · 16373 days ago · 7 km deep · 83 km away
4. 1.56 km WSW of Cobb, CaliforniaWed, Nov 25, 7:50 PM PST · 16372 days ago · 1 km deep · 1 km away
5. 1.98 km N of Geyserville, CaliforniaFri, Nov 27, 3:30 AM PST · 16371 days ago · 5 km deep · 10 km away
6. 1.57 km W of Cobb, CaliforniaSat, Nov 28, 5:54 AM PST · 16370 days ago · 0 km deep · 1 km away
7. 2.26 km W of Cobb, CaliforniaSat, Nov 28, 6:28 AM PST · 16370 days ago · 3 km deep · 1 km away
8. 1.65 km SW of Cobb, CaliforniaSat, Nov 28, 7:06 AM PST · 16370 days ago · -1 km deep · 3 km away
9. 1.55 km WSW of Cobb, CaliforniaSat, Nov 28, 7:11 AM PST · 16370 days ago · 0 km deep · 3 km away
10. 1.67 km ESE of Cloverdale, CaliforniaSat, Nov 28, 1:24 PM PST · 16370 days ago · 5 km deep · 12 km away
11. 1.76 km W of Cobb, CaliforniaSun, Nov 29, 9:09 PM PST · 16368 days ago · 3 km deep · 1 km away
12. 2.58 km NNW of Redwood Valley, CaliforniaMon, Nov 30, 4:12 AM PST · 16368 days ago · 6 km deep · 69 km away
13. 1.78 km W of Cobb, CaliforniaMon, Nov 30, 5:44 AM PST · 16368 days ago · 0 km deep · 1 km away
14. 2.29 km WSW of Cobb, CaliforniaMon, Nov 30, 5:48 AM PST · 16368 days ago · 1 km deep · 2 km away
15. 1.65 km NW of Moskowite Corner, CaliforniaMon, Nov 30, 9:32 AM PST · 16368 days ago · 11 km deep · 62 km away
16. 1.93 km WNW of American Canyon, CaliforniaTue, Dec 1, 4:02 PM PST · 16366 days ago · 6 km deep · 82 km away
17. 1.57 km NE of Healdsburg, CaliforniaWed, Dec 2, 12:55 AM PST · 16366 days ago · 4 km deep · 17 km away
18. 2.08 km N of Geyserville, CaliforniaWed, Dec 2, 3:45 AM PST · 16366 days ago · 5 km deep · 10 km away
19. 2.98 km N of Geyserville, CaliforniaWed, Dec 2, 9:12 AM PST · 16366 days ago · 5 km deep · 10 km away
20. 1.88 km ESE of Cloverdale, CaliforniaWed, Dec 2, 9:22 AM PST · 16366 days ago · 5 km deep · 10 km away
21. 2.38 km ESE of Cloverdale, CaliforniaWed, Dec 2, 11:02 AM PST · 16366 days ago · 5 km deep · 10 km away
22. 1.78 km ESE of Cloverdale, CaliforniaThu, Dec 3, 12:41 PM PST · 16365 days ago · 5 km deep · 10 km away
23. 2.98 km N of Geyserville, CaliforniaFri, Dec 4, 7:42 AM PST · 16364 days ago · 5 km deep · 11 km away
24. 1.98 km N of Geyserville, CaliforniaFri, Dec 4, 7:44 AM PST · 16364 days ago · 4 km deep · 11 km away
25. 2.58 km N of Geyserville, CaliforniaFri, Dec 4, 8:01 AM PST · 16364 days ago · 4 km deep · 11 km away
26. 1.78 km N of Geyserville, CaliforniaFri, Dec 4, 8:39 AM PST · 16364 days ago · 4 km deep · 10 km away
27. 1.98 km N of Geyserville, CaliforniaFri, Dec 4, 9:02 AM PST · 16364 days ago · 4 km deep · 11 km away
28. 1.88 km N of Geyserville, CaliforniaFri, Dec 4, 9:07 AM PST · 16364 days ago · 3 km deep · 11 km away
29. 1.621 km W of Stonyford, CaliforniaFri, Dec 4, 2:03 PM PST · 16364 days ago · 1 km deep · 64 km away
30. 1.66 km WSW of Cobb, CaliforniaSat, Dec 5, 9:48 AM PST · 16363 days ago · 4 km deep · 1 km away
31. 2.213 km NW of Moskowite Corner, CaliforniaSat, Dec 5, 7:25 PM PST · 16362 days ago · 9 km deep · 54 km away
32. 1.917 km NNE of Upper Lake, CaliforniaSat, Dec 5, 9:51 PM PST · 16362 days ago · 6 km deep · 55 km away
33. 1.6Northern CaliforniaSun, Dec 6, 2:15 AM PST · 16362 days ago · 1 km deep · 1 km away
34. 1.86 km WSW of Cobb, CaliforniaSun, Dec 6, 7:56 AM PST · 16362 days ago · -1 km deep · 2 km away
35. 2.26 km W of Cobb, CaliforniaSun, Dec 6, 9:28 AM PST · 16362 days ago · 0 km deep · 0 km away
36. 2.07 km S of Calistoga, CaliforniaSun, Dec 6, 10:02 AM PST · 16362 days ago · 7 km deep · 39 km away
37. 1.67 km W of Cobb, CaliforniaSun, Dec 6, 3:24 PM PST · 16362 days ago · 1 km deep · 0 km away
38. 1.83 km NE of Graton, CaliforniaSun, Dec 6, 5:48 PM PST · 16361 days ago · 4 km deep · 40 km away
39. 1.6Northern CaliforniaMon, Dec 7, 12:38 AM PST · 16361 days ago · 1 km deep · 2 km away
40. 2.33 km NNW of Larkfield-Wikiup, CaliforniaMon, Dec 7, 3:31 AM PST · 16361 days ago · 5 km deep · 31 km away
41. 3.27 km ENE of Brooktrails, CaliforniaMon, Dec 7, 1:32 PM PST · 16361 days ago · 10 km deep · 85 km away
42. 2.221 km W of Stonyford, CaliforniaMon, Dec 7, 5:49 PM PST · 16360 days ago · 4 km deep · 64 km away
43. 1.58 km WSW of Cobb, CaliforniaTue, Dec 8, 9:25 AM PST · 16360 days ago · 2 km deep · 2 km away
44. 2.721 km W of Stonyford, CaliforniaTue, Dec 8, 9:58 PM PST · 16359 days ago · 4 km deep · 64 km away
45. 2.0Northern CaliforniaTue, Dec 8, 10:10 PM PST · 16359 days ago · 2 km deep · 64 km away
46. 2.59 km WSW of Cobb, CaliforniaWed, Dec 9, 5:29 PM PST · 16358 days ago · 2 km deep · 2 km away
47. 3.35 km W of Cobb, CaliforniaThu, Dec 10, 3:57 AM PST · 16358 days ago · 4 km deep · 1 km away
48. 1.56 km W of Cobb, CaliforniaThu, Dec 10, 4:21 AM PST · 16358 days ago · 4 km deep · 1 km away
49. 1.78 km W of Cobb, CaliforniaThu, Dec 10, 11:17 AM PST · 16358 days ago · 1 km deep · 2 km away
50. 2.17 km NNE of Hidden Valley Lake, CaliforniaThu, Dec 10, 11:41 AM PST · 16358 days ago · 7 km deep · 24 km away
51. 1.79 km WSW of Cobb, CaliforniaThu, Dec 10, 2:28 PM PST · 16358 days ago · 2 km deep · 2 km away
52. 1.66 km W of Cobb, CaliforniaThu, Dec 10, 10:37 PM PST · 16357 days ago · 1 km deep · 1 km away
53. 1.88 km E of Willits, CaliforniaFri, Dec 11, 4:00 AM PST · 16357 days ago · 8 km deep · 76 km away
54. 1.6Northern CaliforniaSat, Dec 12, 1:49 AM PST · 16356 days ago · 0 km deep · 3 km away
55. 1.64 km WSW of Cobb, CaliforniaSat, Dec 12, 4:09 AM PST · 16356 days ago · 1 km deep · 3 km away
56. 1.57 km WSW of Cobb, CaliforniaSun, Dec 13, 2:17 AM PST · 16355 days ago · 1 km deep · 2 km away
57. 2.45 km E of Penngrove, CaliforniaSun, Dec 13, 3:32 AM PST · 16355 days ago · 8 km deep · 59 km away
58. 1.710 km ENE of Hidden Valley Lake, CaliforniaMon, Dec 14, 10:42 AM PST · 16354 days ago · 4 km deep · 32 km away
59. 1.76 km W of Cobb, CaliforniaMon, Dec 14, 11:58 AM PST · 16354 days ago · 1 km deep · 2 km away
60. 1.63 km NNW of Clearlake, CaliforniaMon, Dec 14, 12:21 PM PST · 16354 days ago · 73 km deep · 24 km away

The first 60 of 190.

Before

1. 2.97 km W of Cobb, CaliforniaTue, Nov 24, 10:02 PM PST · 16373 days ago · 1 km deep · 1 km away
2. 1.67 km W of Cobb, CaliforniaTue, Nov 24, 9:56 PM PST · 16373 days ago · 1 km deep · 1 km away
3. 1.67 km W of Cobb, CaliforniaTue, Nov 24, 9:55 PM PST · 16373 days ago · 1 km deep · 1 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1069713. Read Wed, Sep 23, 2026, 11:03 AM UTC.