M1.6 earthquake 6km WNW of Cobb, CA

Magnitude

1.6 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Wed, Oct 21, 2020, 2:41 AM PDT

UTC

2020-10-21 09:41:58 UTC

Depth

1.6 km (1.0 mi), shallow

Epicenter

38.836° N, 122.784° 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

±0.17

Depth from

From location

Station coverage gap

46°

Stations used

46

• Cobb, CaliforniaPopulation 1,778. Forecast5 kmWNW
• Clearlake, CaliforniaPopulation 15,182. Forecast19 kmSW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast44 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast669 kmNW

After

1. 1.911km NNW of Redwood Valley, CAWed, Oct 21, 3:08 AM PDT · 2175 days ago · 7 km deep · 70 km away
2. 1.813km W of Williams, CAWed, Oct 21, 3:46 AM PDT · 2175 days ago · 23 km deep · 55 km away
3. 2.110km ESE of Willits, CAWed, Oct 21, 4:15 AM PDT · 2175 days ago · 7 km deep · 71 km away · felt by 1
4. 1.85km NNE of Black Point-Green Point, CAWed, Oct 21, 5:01 PM PDT · 2174 days ago · 4 km deep · 80 km away · felt by 4
5. 2.311km ESE of Willits, CAThu, Oct 22, 2:38 AM PDT · 2174 days ago · 8 km deep · 71 km away
6. 1.511km ESE of Redwood Valley, CAThu, Oct 22, 5:09 AM PDT · 2174 days ago · 7 km deep · 50 km away
7. 2.810km ESE of Willits, CAThu, Oct 22, 5:53 AM PDT · 2174 days ago · 7 km deep · 71 km away · felt by 25
8. 1.610km ESE of Willits, CAThu, Oct 22, 6:27 PM PDT · 2173 days ago · 6 km deep · 72 km away
9. 1.63km ENE of The Geysers, CAFri, Oct 23, 1:45 PM PDT · 2172 days ago · 2 km deep · 7 km away
10. 1.86km NW of The Geysers, CAFri, Oct 23, 4:40 PM PDT · 2172 days ago · 3 km deep · 3 km away
11. 2.511km ESE of Willits, CAFri, Oct 23, 11:53 PM PDT · 2172 days ago · 8 km deep · 71 km away · felt by 14
12. 2.81km SSW of Anderson Springs, CASat, Oct 24, 3:17 AM PDT · 2172 days ago · 2 km deep · 11 km away · felt by 14
13. 1.60km ESE of Anderson Springs, CASat, Oct 24, 3:18 AM PDT · 2172 days ago · 2 km deep · 11 km away
14. 2.010km ESE of Willits, CASat, Oct 24, 9:24 AM PDT · 2172 days ago · 6 km deep · 72 km away · felt by 1
15. 2.05km NW of The Geysers, CASat, Oct 24, 10:15 AM PDT · 2172 days ago · 1 km deep · 3 km away
16. 1.52km SSW of Anderson Springs, CASun, Oct 25, 3:11 AM PDT · 2171 days ago · 2 km deep · 11 km away
17. 1.81km ESE of The Geysers, CASun, Oct 25, 5:20 AM PDT · 2171 days ago · 1 km deep · 8 km away
18. 1.77km W of Clearlake, CASun, Oct 25, 10:13 AM PDT · 2171 days ago · 1 km deep · 15 km away · felt by 4
19. 1.615km E of Angwin, CAMon, Oct 26, 4:16 AM PDT · 2170 days ago · 5 km deep · 53 km away
20. 1.515km E of Angwin, CAMon, Oct 26, 5:12 AM PDT · 2170 days ago · 6 km deep · 53 km away
21. 2.110km ESE of Willits, CAMon, Oct 26, 5:32 AM PDT · 2170 days ago · 8 km deep · 71 km away
22. 3.513km E of Angwin, CAMon, Oct 26, 6:38 AM PDT · 2170 days ago · 9 km deep · 52 km away · felt by 73
23. 2.013km ESE of Angwin, CAMon, Oct 26, 8:58 AM PDT · 2170 days ago · 1 km deep · 53 km away
24. 1.614km E of Angwin, CAMon, Oct 26, 8:58 AM PDT · 2170 days ago · 3 km deep · 53 km away
25. 1.73km SE of The Geysers, CAMon, Oct 26, 3:26 PM PDT · 2169 days ago · 1 km deep · 10 km away
26. 2.01km NNE of The Geysers, CAMon, Oct 26, 10:16 PM PDT · 2169 days ago · 2 km deep · 6 km away
27. 2.06km NW of The Geysers, CATue, Oct 27, 8:03 AM PDT · 2169 days ago · 2 km deep · 2 km away
28. 1.87km NW of The Geysers, CATue, Oct 27, 9:24 AM PDT · 2169 days ago · 3 km deep · 3 km away
29. 2.16km SSW of Yountville, CATue, Oct 27, 3:54 PM PDT · 2168 days ago · 8 km deep · 63 km away
30. 2.04km SSW of Anderson Springs, CAWed, Oct 28, 1:58 AM PDT · 2168 days ago · 2 km deep · 13 km away
31. 2.24km S of Anderson Springs, CAWed, Oct 28, 1:58 AM PDT · 2168 days ago · 2 km deep · 13 km away
32. 1.93km SSW of Anderson Springs, CAWed, Oct 28, 2:43 AM PDT · 2168 days ago · 2 km deep · 12 km away
33. 1.68km W of Calistoga, CAWed, Oct 28, 9:10 AM PDT · 2168 days ago · 0 km deep · 30 km away
34. 2.314km E of Angwin, CAWed, Oct 28, 12:45 PM PDT · 2167 days ago · 6 km deep · 52 km away · felt by 1
35. 2.52km WSW of Anderson Springs, CAWed, Oct 28, 1:27 PM PDT · 2167 days ago · 1 km deep · 10 km away · felt by 4
36. 1.618km NNE of Nice, CAWed, Oct 28, 6:55 PM PDT · 2167 days ago · 7 km deep · 47 km away · felt by 1
37. 1.76km SW of Yountville, CAWed, Oct 28, 8:39 PM PDT · 2167 days ago · 11 km deep · 63 km away
38. 2.119km E of Navarro Head, CAThu, Oct 29, 4:10 AM PDT · 2167 days ago · 3 km deep · 77 km away
39. 1.57km NW of The Geysers, CAThu, Oct 29, 5:35 PM PDT · 2166 days ago · 4 km deep · 3 km away
40. 1.73km SW of Anderson Springs, CAThu, Oct 29, 10:29 PM PDT · 2166 days ago · 1 km deep · 11 km away
41. 1.710km ENE of Hidden Valley Lake, CAFri, Oct 30, 11:02 AM PDT · 2166 days ago · 5 km deep · 29 km away
42. 1.612km SSE of Boonville, CASat, Oct 31, 10:40 AM PDT · 2165 days ago · 3 km deep · 45 km away
43. 2.03km NNW of The Geysers, CASat, Oct 31, 11:05 AM PDT · 2165 days ago · 2 km deep · 4 km away
44. 2.16km E of Redwood Valley, CASat, Oct 31, 2:41 PM PDT · 2164 days ago · 5 km deep · 56 km away
45. 2.113km ESE of Willows, CASun, Nov 1, 4:32 AM PST · 2164 days ago · 24 km deep · 97 km away
46. 1.94km NW of The Geysers, CASun, Nov 1, 8:15 AM PST · 2164 days ago · 0 km deep · 4 km away
47. 1.54km WNW of The Geysers, CASun, Nov 1, 2:30 PM PST · 2163 days ago · 2 km deep · 5 km away
48. 1.82km S of Angwin, CAMon, Nov 2, 1:42 AM PST · 2163 days ago · 12 km deep · 42 km away
49. 2.911km ESE of Willits, CAMon, Nov 2, 2:22 PM PST · 2162 days ago · 7 km deep · 71 km away · felt by 40
50. 1.911km ESE of Willits, CAMon, Nov 2, 3:20 PM PST · 2162 days ago · 6 km deep · 71 km away
51. 2.211km ESE of Willits, CAMon, Nov 2, 5:50 PM PST · 2162 days ago · 8 km deep · 71 km away · felt by 4
52. 1.510km ESE of Willits, CAMon, Nov 2, 6:00 PM PST · 2162 days ago · 6 km deep · 71 km away
53. 1.710km ESE of Willits, CATue, Nov 3, 5:32 AM PST · 2162 days ago · 6 km deep · 71 km away
54. 3.311km ESE of Willits, CATue, Nov 3, 9:41 AM PST · 2162 days ago · 7 km deep · 71 km away · felt by 19
55. 1.59km WNW of The Geysers, CAWed, Nov 4, 2:06 AM PST · 2161 days ago · 2 km deep · 5 km away
56. 1.57km NW of The Geysers, CAWed, Nov 4, 11:05 AM PST · 2161 days ago · 2 km deep · 4 km away
57. 1.86km NW of The Geysers, CAWed, Nov 4, 4:08 PM PST · 2160 days ago · 3 km deep · 3 km away
58. 1.76km NW of The Geysers, CAWed, Nov 4, 4:27 PM PST · 2160 days ago · 3 km deep · 3 km away
59. 2.510km ESE of Willits, CAThu, Nov 5, 2:25 AM PST · 2160 days ago · 7 km deep · 71 km away · felt by 4
60. 1.73km WNW of Cobb, CAThu, Nov 5, 2:15 PM PST · 2159 days ago · 0 km deep · 2 km away

The first 60 of 198.

Before

1. 1.810km ESE of Willits, CATue, Oct 20, 10:15 AM PDT · 2176 days ago · 6 km deep · 71 km away
2. 1.55km NW of The Geysers, CATue, Oct 20, 8:12 AM PDT · 2176 days ago · 3 km deep · 3 km away
3. 2.711km ESE of Willits, CAMon, Oct 19, 9:01 PM PDT · 2176 days ago · 8 km deep · 71 km away · felt by 29
4. 1.610km ESE of Willits, CAMon, Oct 19, 8:59 PM PDT · 2176 days ago · 6 km deep · 71 km away
5. 1.910km ESE of Willits, CAMon, Oct 19, 8:02 PM PDT · 2176 days ago · 5 km deep · 72 km away · felt by 1
6. 1.610km ESE of Willits, CAMon, Oct 19, 7:37 PM PDT · 2176 days ago · 3 km deep · 72 km away
7. 3.410km ESE of Willits, CAMon, Oct 19, 6:59 PM PDT · 2176 days ago · 7 km deep · 71 km away · felt by 19
8. 3.811km ESE of Willits, CAMon, Oct 19, 6:58 PM PDT · 2176 days ago · 8 km deep · 71 km away · felt by 142
9. 2.07km NW of The Geysers, CAMon, Oct 19, 1:45 PM PDT · 2176 days ago · 3 km deep · 4 km away
10. 1.55km N of Kenwood, CAMon, Oct 19, 1:25 PM PDT · 2176 days ago · 7 km deep · 47 km away
11. 2.610km S of Esparto, CAMon, Oct 19, 3:14 AM PDT · 2177 days ago · 9 km deep · 70 km away · felt by 14
12. 2.99km S of Esparto, CAMon, Oct 19, 3:00 AM PDT · 2177 days ago · 11 km deep · 70 km away · felt by 33
13. 1.86km NW of The Geysers, CASat, Oct 17, 3:48 PM PDT · 2178 days ago · 3 km deep · 2 km away
14. 1.611km W of Lakeport, CASat, Oct 17, 3:40 PM PDT · 2178 days ago · 7 km deep · 31 km away · felt by 1
15. 1.93km W of Cobb, CASat, Oct 17, 11:49 AM PDT · 2179 days ago · 1 km deep · 2 km away · felt by 1
16. 1.511km ESE of Hidden Valley Lake, CASat, Oct 17, 5:54 AM PDT · 2179 days ago · 8 km deep · 30 km away
17. 1.611km ESE of Willits, CASat, Oct 17, 2:50 AM PDT · 2179 days ago · 6 km deep · 71 km away
18. 1.810km ESE of Willits, CASat, Oct 17, 2:31 AM PDT · 2179 days ago · 5 km deep · 71 km away
19. 1.78km N of Brooktrails, CAFri, Oct 16, 5:58 PM PDT · 2179 days ago · 6 km deep · 91 km away
20. 1.66km WNW of The Geysers, CAFri, Oct 16, 4:36 PM PDT · 2179 days ago · 3 km deep · 5 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73473456. Read Mon, Oct 5, 2026, 6:54 AM UTC.