M1.9 earthquake 7 km W of Cobb, California

Magnitude

1.9 (md), micro

Local time

Sat, May 31, 1986, 10:53 PM PDT

UTC

1986-06-01 05:53:10 UTC

Depth

3.6 km (2.3 mi), shallow

Epicenter

38.810° N, 122.812° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

157°

Stations used

10

• 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. Forecast668 kmNW

After

1. 1.92 km SW of Cobb, CaliforniaSun, Jun 1, 12:38 PM PDT · 14731 days ago · 1 km deep · 6 km away
2. 1.76 km WSW of Cobb, CaliforniaMon, Jun 2, 1:44 AM PDT · 14730 days ago · 2 km deep · 2 km away
3. 2.25 km SW of Cobb, CaliforniaMon, Jun 2, 1:21 PM PDT · 14730 days ago · 2 km deep · 4 km away
4. 1.64 km W of Cobb, CaliforniaMon, Jun 2, 7:11 PM PDT · 14730 days ago · 0 km deep · 3 km away
5. 1.56 km W of Cobb, CaliforniaThu, Jun 5, 4:45 PM PDT · 14727 days ago · -1 km deep · 2 km away
6. 1.813 km NE of Upper Lake, CaliforniaSat, Jun 7, 12:42 AM PDT · 14725 days ago · 10 km deep · 50 km away
7. 1.73 km W of Cobb, CaliforniaSat, Jun 7, 3:34 AM PDT · 14725 days ago · 0 km deep · 4 km away
8. 1.614 km ENE of Angwin, CaliforniaSat, Jun 7, 7:13 AM PDT · 14725 days ago · 4 km deep · 47 km away
9. 1.96 km W of Cobb, CaliforniaSat, Jun 7, 10:18 AM PDT · 14725 days ago · -1 km deep · 2 km away
10. 2.08 km WSW of Geyserville, CaliforniaSat, Jun 7, 7:34 PM PDT · 14725 days ago · 4 km deep · 22 km away
11. 1.52 km E of Clear Lake Riviera, CaliforniaSat, Jun 7, 8:16 PM PDT · 14725 days ago · 3 km deep · 19 km away
12. 2.29 km WSW of Cobb, CaliforniaSun, Jun 8, 7:09 AM PDT · 14724 days ago · 2 km deep · 2 km away
13. 1.55 km SW of Cobb, CaliforniaMon, Jun 9, 11:35 PM PDT · 14722 days ago · 2 km deep · 4 km away
14. 3.24 km WSW of Hopland, CaliforniaWed, Jun 11, 9:24 PM PDT · 14720 days ago · 5 km deep · 34 km away
15. 2.15 km WSW of Cobb, CaliforniaThu, Jun 12, 1:53 PM PDT · 14720 days ago · 1 km deep · 3 km away
16. 1.55 km WSW of Cobb, CaliforniaThu, Jun 12, 1:56 PM PDT · 14720 days ago · 0 km deep · 3 km away
17. 2.07 km W of Cobb, CaliforniaThu, Jun 12, 11:58 PM PDT · 14719 days ago · 3 km deep · 1 km away
18. 1.8Northern CaliforniaSat, Jun 14, 7:46 AM PDT · 14718 days ago · 1 km deep · 4 km away
19. 2.09 km WSW of Cobb, CaliforniaSat, Jun 14, 1:09 PM PDT · 14718 days ago · 2 km deep · 2 km away
20. 1.719 km NE of Potter Valley, CaliforniaSat, Jun 14, 8:52 PM PDT · 14718 days ago · 4 km deep · 71 km away
21. 1.96 km W of Cobb, CaliforniaSun, Jun 15, 12:20 PM PDT · 14717 days ago · 3 km deep · 2 km away
22. 1.97 km WSW of Cobb, CaliforniaSun, Jun 15, 5:22 PM PDT · 14717 days ago · 2 km deep · 1 km away
23. 2.26 km SW of Cobb, CaliforniaMon, Jun 16, 5:36 AM PDT · 14716 days ago · -1 km deep · 5 km away
24. 1.87 km SW of Brooktrails, CaliforniaMon, Jun 16, 4:13 PM PDT · 14716 days ago · 6 km deep · 84 km away
25. 1.56 km ESE of Geyserville, CaliforniaTue, Jun 17, 1:48 PM PDT · 14715 days ago · 6 km deep · 14 km away
26. 1.58 km W of Cobb, CaliforniaTue, Jun 17, 2:49 PM PDT · 14715 days ago · 1 km deep · 2 km away
27. 1.65 km SW of Cobb, CaliforniaTue, Jun 17, 9:55 PM PDT · 14714 days ago · 0 km deep · 4 km away
28. 2.04 km WNW of Glen Ellen, CaliforniaWed, Jun 18, 4:55 AM PDT · 14714 days ago · 9 km deep · 53 km away
29. 2.35 km SW of Cobb, CaliforniaThu, Jun 19, 12:10 AM PDT · 14713 days ago · 0 km deep · 4 km away
30. 2.85 km SW of Cobb, CaliforniaThu, Jun 19, 2:33 AM PDT · 14713 days ago · -1 km deep · 5 km away
31. 1.80 km SSW of Crockett, CaliforniaThu, Jun 19, 11:09 PM PDT · 14712 days ago · 10 km deep · 100 km away
32. 2.08 km WSW of Cobb, CaliforniaFri, Jun 20, 11:30 AM PDT · 14712 days ago · 3 km deep · 1 km away
33. 1.88 km E of Lower Lake, CaliforniaSat, Jun 21, 2:19 AM PDT · 14711 days ago · 1 km deep · 29 km away
34. 1.98 km E of Lower Lake, CaliforniaSat, Jun 21, 2:34 AM PDT · 14711 days ago · 2 km deep · 28 km away
35. 1.98 km E of Lower Lake, CaliforniaSat, Jun 21, 3:25 AM PDT · 14711 days ago · 6 km deep · 29 km away
36. 2.48 km E of Lower Lake, CaliforniaSat, Jun 21, 3:26 AM PDT · 14711 days ago · 5 km deep · 28 km away
37. 2.58 km WSW of Cobb, CaliforniaSat, Jun 21, 6:07 PM PDT · 14711 days ago · 3 km deep · 1 km away
38. 1.710 km WSW of Cobb, CaliforniaSun, Jun 22, 8:29 AM PDT · 14710 days ago · -1 km deep · 3 km away
39. 1.9Northern CaliforniaSun, Jun 22, 12:30 PM PDT · 14710 days ago · 1 km deep · 3 km away
40. 2.914 km WSW of Guinda, CaliforniaSun, Jun 22, 4:30 PM PDT · 14710 days ago · 5 km deep · 41 km away
41. 1.95 km ENE of Black Point-Green Point, CaliforniaMon, Jun 23, 8:17 AM PDT · 14709 days ago · 12 km deep · 82 km away
42. 2.18 km ENE of Talmage, CaliforniaMon, Jun 23, 2:12 PM PDT · 14709 days ago · 23 km deep · 46 km away
43. 2.37 km WSW of Cobb, CaliforniaMon, Jun 23, 6:00 PM PDT · 14709 days ago · 3 km deep · 2 km away
44. 2.34 km S of Cobb, CaliforniaTue, Jun 24, 12:24 AM PDT · 14708 days ago · 0 km deep · 8 km away
45. 2.26 km W of Cobb, CaliforniaTue, Jun 24, 12:59 AM PDT · 14708 days ago · 3 km deep · 2 km away
46. 1.97 km W of Cobb, CaliforniaTue, Jun 24, 12:19 PM PDT · 14708 days ago · 3 km deep · 1 km away
47. 1.65 km SW of Cobb, CaliforniaTue, Jun 24, 2:53 PM PDT · 14708 days ago · 1 km deep · 4 km away
48. 2.710 km SSE of Willows, CaliforniaWed, Jun 25, 2:34 PM PDT · 14707 days ago · 45 km deep · 90 km away
49. 2.67 km WSW of Cobb, CaliforniaThu, Jun 26, 2:53 AM PDT · 14706 days ago · 0 km deep · 1 km away
50. 2.57 km WSW of Cobb, CaliforniaThu, Jun 26, 4:19 AM PDT · 14706 days ago · 0 km deep · 1 km away
51. 1.68 km W of Cobb, CaliforniaThu, Jun 26, 8:33 AM PDT · 14706 days ago · 1 km deep · 1 km away
52. 2.18 km WSW of Cobb, CaliforniaFri, Jun 27, 6:36 AM PDT · 14705 days ago · 1 km deep · 1 km away
53. 2.48 km WSW of Cobb, CaliforniaFri, Jun 27, 6:36 AM PDT · 14705 days ago · 1 km deep · 1 km away
54. 2.25 km SW of Cobb, CaliforniaFri, Jun 27, 2:32 PM PDT · 14705 days ago · 2 km deep · 4 km away
55. 1.66 km NW of Clearlake Oaks, CaliforniaSat, Jun 28, 3:03 AM PDT · 14704 days ago · 24 km deep · 31 km away
56. 2.04 km SSW of Cobb, CaliforniaSat, Jun 28, 5:31 AM PDT · 14704 days ago · 1 km deep · 6 km away
57. 2.05 km SW of Cobb, CaliforniaSat, Jun 28, 6:14 AM PDT · 14704 days ago · 2 km deep · 4 km away
58. 1.55 km SW of Cobb, CaliforniaSat, Jun 28, 1:17 PM PDT · 14704 days ago · 1 km deep · 4 km away
59. 3.1near the coast of Northern CaliforniaSat, Jun 28, 7:11 PM PDT · 14704 days ago · 0 km deep · 68 km away
60. 1.912 km W of Cobb, CaliforniaSat, Jun 28, 10:24 PM PDT · 14703 days ago · 2 km deep · 5 km away

The first 60 of 161.

Before

1. 1.91 km NW of Clearlake, CaliforniaSat, May 31, 3:28 AM PDT · 14732 days ago · 40 km deep · 23 km away
2. 1.96 km W of Cobb, CaliforniaFri, May 30, 7:37 PM PDT · 14733 days ago · 4 km deep · 2 km away
3. 2.65 km SW of Cobb, CaliforniaFri, May 30, 4:49 PM PDT · 14733 days ago · 4 km deep · 4 km away
4. 2.35 km SW of Cobb, CaliforniaThu, May 29, 11:36 PM PDT · 14733 days ago · 0 km deep · 4 km away
5. 2.45 km SSW of Cobb, CaliforniaThu, May 29, 3:48 PM PDT · 14734 days ago · 0 km deep · 6 km away
6. 1.65 km W of Cobb, CaliforniaThu, May 29, 3:14 AM PDT · 14734 days ago · 0 km deep · 3 km away
7. 1.76 km W of Cobb, CaliforniaWed, May 28, 6:00 PM PDT · 14735 days ago · 1 km deep · 3 km away
8. 2.14 km WSW of Cobb, CaliforniaWed, May 28, 1:46 PM PDT · 14735 days ago · -1 km deep · 4 km away
9. 1.74 km WSW of Cobb, CaliforniaWed, May 28, 5:48 AM PDT · 14735 days ago · -1 km deep · 4 km away
10. 1.818 km NNE of Upper Lake, CaliforniaTue, May 27, 5:05 PM PDT · 14736 days ago · 4 km deep · 55 km away
11. 1.76 km WNW of Healdsburg, CaliforniaTue, May 27, 7:59 AM PDT · 14736 days ago · 4 km deep · 22 km away
12. 1.65 km WNW of Cobb, CaliforniaTue, May 27, 4:33 AM PDT · 14736 days ago · -1 km deep · 4 km away
13. 2.67 km W of Cobb, CaliforniaMon, May 26, 11:41 PM PDT · 14736 days ago · 3 km deep · 0 km away
14. 1.85 km SW of Cobb, CaliforniaMon, May 26, 11:06 PM PDT · 14736 days ago · -1 km deep · 4 km away
15. 3.16 km W of Cobb, CaliforniaMon, May 26, 10:06 PM PDT · 14736 days ago · 3 km deep · 1 km away
16. 1.56 km W of Cobb, CaliforniaMon, May 26, 7:47 PM PDT · 14737 days ago · 3 km deep · 1 km away
17. 2.06 km SW of Cobb, CaliforniaSun, May 25, 6:25 PM PDT · 14738 days ago · 2 km deep · 4 km away
18. 3.26 km W of Cobb, CaliforniaSun, May 25, 2:51 AM PDT · 14738 days ago · 3 km deep · 1 km away
19. 2.16 km WSW of Cobb, CaliforniaSat, May 24, 5:52 PM PDT · 14739 days ago · 2 km deep · 1 km away
20. 2.16 km W of Cobb, CaliforniaSat, May 24, 4:57 AM PDT · 14739 days ago · 3 km deep · 2 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73757. Read Wed, Sep 30, 2026, 3:36 PM UTC.