M1.9 earthquake 3km W of Cobb, CA

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Tue, Jul 20, 2021, 5:54 AM PDT

UTC

2021-07-20 12:54:19 UTC

Depth

1.8 km (1.1 mi), shallow

Epicenter

38.820° N, 122.761° W

Region

California

Felt reports

1

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.2 km in depth

Magnitude uncertainty

±0.15

Depth from

From location

Station coverage gap

46°

Stations used

54

• Cobb, CaliforniaPopulation 1,778. Forecast3 kmW
• Clearlake, CaliforniaPopulation 15,182. Forecast19 kmSW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast42 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast666 kmNW

After

1. 1.73km SE of The Geysers, CATue, Jul 20, 10:18 PM PDT · 1901 days ago · 1 km deep · 7 km away
2. 1.97km ESE of Roseland, CATue, Jul 20, 10:36 PM PDT · 1901 days ago · 9 km deep · 48 km away
3. 2.29km ESE of Cloverdale, CAWed, Jul 21, 12:51 AM PDT · 1900 days ago · 5 km deep · 15 km away · felt by 1
4. 1.56km WNW of The Geysers, CAWed, Jul 21, 2:14 AM PDT · 1900 days ago · 1 km deep · 5 km away
5. 2.12km SW of Cobb, CAWed, Jul 21, 3:05 AM PDT · 1900 days ago · 2 km deep · 2 km away
6. 1.89km ESE of Cloverdale, CAWed, Jul 21, 5:44 AM PDT · 1900 days ago · 4 km deep · 15 km away
7. 2.38km NW of The Geysers, CAWed, Jul 21, 2:56 PM PDT · 1900 days ago · 1 km deep · 5 km away · felt by 2
8. 1.55km E of Boonville, CAThu, Jul 22, 2:48 AM PDT · 1899 days ago · 5 km deep · 52 km away
9. 1.87km NW of The Geysers, CAThu, Jul 22, 10:48 AM PDT · 1899 days ago · 3 km deep · 5 km away
10. 2.58km NW of Dunnigan, CAThu, Jul 22, 12:19 PM PDT · 1899 days ago · 16 km deep · 65 km away · felt by 6
11. 1.612km N of Brooktrails, CAThu, Jul 22, 1:37 PM PDT · 1899 days ago · 7 km deep · 97 km away
12. 2.311km W of Alder Springs, CAThu, Jul 22, 10:15 PM PDT · 1899 days ago · 6 km deep · 94 km away
13. 2.26km WNW of Cobb, CAFri, Jul 23, 11:44 AM PDT · 1898 days ago · 2 km deep · 3 km away
14. 2.26km WNW of Cobb, CAFri, Jul 23, 11:46 AM PDT · 1898 days ago · 2 km deep · 3 km away
15. 2.011km W of Alder Springs, CAFri, Jul 23, 4:13 PM PDT · 1898 days ago · 4 km deep · 94 km away
16. 2.510km WNW of Alder Springs, CASat, Jul 24, 6:37 AM PDT · 1897 days ago · 1 km deep · 95 km away
17. 1.611km ENE of Yountville, CASat, Jul 24, 10:13 AM PDT · 1897 days ago · 6 km deep · 63 km away
18. 2.311km W of Alder Springs, CASat, Jul 24, 7:19 PM PDT · 1897 days ago · 2 km deep · 95 km away
19. 2.811km W of Alder Springs, CASat, Jul 24, 7:35 PM PDT · 1897 days ago · 0 km deep · 95 km away
20. 1.77km NW of The Geysers, CASat, Jul 24, 10:12 PM PDT · 1897 days ago · 2 km deep · 5 km away
21. 3.211km W of Alder Springs, CASun, Jul 25, 6:21 PM PDT · 1896 days ago · 5 km deep · 95 km away · felt by 9
22. 2.16km SSW of Calistoga, CAMon, Jul 26, 3:35 AM PDT · 1895 days ago · 9 km deep · 36 km away · felt by 4
23. 1.73km NW of The Geysers, CAMon, Jul 26, 1:02 PM PDT · 1895 days ago · 0 km deep · 3 km away
24. 2.511km W of Alder Springs, CAMon, Jul 26, 10:40 PM PDT · 1895 days ago · 1 km deep · 94 km away
25. 2.17km NW of The Geysers, CATue, Jul 27, 7:58 AM PDT · 1894 days ago · -1 km deep · 4 km away
26. 2.011km W of Alder Springs, CATue, Jul 27, 11:10 AM PDT · 1894 days ago · 5 km deep · 95 km away
27. 1.614km NE of Redwood Valley, CATue, Jul 27, 5:40 PM PDT · 1894 days ago · 3 km deep · 68 km away
28. 2.511km WNW of Alder Springs, CATue, Jul 27, 9:34 PM PDT · 1894 days ago · 5 km deep · 95 km away
29. 2.07km ESE of Willits, CATue, Jul 27, 11:34 PM PDT · 1894 days ago · 7 km deep · 77 km away
30. 3.06km NNW of Guerneville, CAWed, Jul 28, 3:51 AM PDT · 1893 days ago · 6 km deep · 37 km away · felt by 201
31. 1.94km NW of The Geysers, CAWed, Jul 28, 9:38 PM PDT · 1893 days ago · -1 km deep · 4 km away
32. 2.23km S of Anderson Springs, CAWed, Jul 28, 11:30 PM PDT · 1893 days ago · 2 km deep · 10 km away
33. 2.13km SSW of Anderson Springs, CAWed, Jul 28, 11:30 PM PDT · 1893 days ago · 4 km deep · 9 km away
34. 2.32km NNW of The Geysers, CAWed, Jul 28, 11:30 PM PDT · 1893 days ago · 0 km deep · 3 km away
35. 1.73km NW of The Geysers, CAWed, Jul 28, 11:31 PM PDT · 1893 days ago · -1 km deep · 3 km away
36. 1.87km WNW of Cobb, CAWed, Jul 28, 11:32 PM PDT · 1893 days ago · 1 km deep · 4 km away
37. 1.76km WNW of Cobb, CAThu, Jul 29, 4:06 AM PDT · 1892 days ago · 2 km deep · 3 km away
38. 1.84km W of Cobb, CAThu, Jul 29, 7:08 AM PDT · 1892 days ago · 2 km deep · 0 km away
39. 1.58km WNW of Cobb, CAThu, Jul 29, 2:45 PM PDT · 1892 days ago · 1 km deep · 5 km away
40. 2.57km NW of The Geysers, CAThu, Jul 29, 8:11 PM PDT · 1892 days ago · 3 km deep · 4 km away · felt by 4
41. 1.97km NW of The Geysers, CAThu, Jul 29, 8:11 PM PDT · 1892 days ago · 3 km deep · 4 km away
42. 1.76km NW of The Geysers, CAThu, Jul 29, 8:12 PM PDT · 1892 days ago · 3 km deep · 4 km away
43. 2.26km NW of The Geysers, CAThu, Jul 29, 10:48 PM PDT · 1892 days ago · 3 km deep · 3 km away
44. 1.97km ESE of Lake Pillsbury, CAThu, Jul 29, 11:47 PM PDT · 1892 days ago · 4 km deep · 63 km away
45. 2.46km NW of The Geysers, CAFri, Jul 30, 12:32 PM PDT · 1891 days ago · 2 km deep · 3 km away
46. 3.25km NNW of The Geysers, CASat, Jul 31, 8:15 AM PDT · 1890 days ago · 3 km deep · 3 km away · felt by 34
47. 2.16km W of Cobb, CASat, Jul 31, 11:03 AM PDT · 1890 days ago · 2 km deep · 3 km away
48. 1.610km ENE of Hidden Valley Lake, CASat, Jul 31, 11:46 AM PDT · 1890 days ago · 9 km deep · 27 km away
49. 2.012km WNW of Alder Springs, CASat, Jul 31, 1:47 PM PDT · 1890 days ago · 3 km deep · 95 km away
50. 2.712km WNW of Alder Springs, CASat, Jul 31, 2:47 PM PDT · 1890 days ago · -1 km deep · 95 km away
51. 3.012km WNW of Alder Springs, CASat, Jul 31, 3:16 PM PDT · 1890 days ago · 0 km deep · 96 km away · felt by 1
52. 1.713km WNW of Alder Springs, CASat, Jul 31, 3:53 PM PDT · 1890 days ago · -1 km deep · 96 km away
53. 1.912km WNW of Alder Springs, CASat, Jul 31, 7:29 PM PDT · 1890 days ago · 1 km deep · 96 km away
54. 2.111km NE of Healdsburg, CASun, Aug 1, 1:22 AM PDT · 1889 days ago · 6 km deep · 17 km away · felt by 2
55. 2.212km WNW of Alder Springs, CASun, Aug 1, 4:54 AM PDT · 1889 days ago · 6 km deep · 96 km away
56. 1.72km W of Anderson Springs, CASun, Aug 1, 6:30 AM PDT · 1889 days ago · 2 km deep · 6 km away · felt by 1
57. 2.43km W of Anderson Springs, CASun, Aug 1, 6:30 AM PDT · 1889 days ago · 1 km deep · 6 km away
58. 1.55km NW of The Geysers, CASun, Aug 1, 10:08 AM PDT · 1889 days ago · 2 km deep · 3 km away
59. 2.210km WNW of Alder Springs, CASun, Aug 1, 12:45 PM PDT · 1889 days ago · 4 km deep · 95 km away
60. 2.012km WNW of Alder Springs, CASun, Aug 1, 1:34 PM PDT · 1889 days ago · 7 km deep · 96 km away

The first 60 of 200.

Before

1. 1.66km W of Cobb, CATue, Jul 20, 1:45 AM PDT · 1901 days ago · 2 km deep · 3 km away
2. 1.68km SW of Calistoga, CAMon, Jul 19, 7:22 AM PDT · 1902 days ago · 6 km deep · 33 km away
3. 1.610km ESE of Angwin, CASun, Jul 18, 9:24 PM PDT · 1903 days ago · 4 km deep · 48 km away
4. 2.36km E of Willits, CASat, Jul 17, 8:34 PM PDT · 1904 days ago · 6 km deep · 80 km away · felt by 1
5. 1.63km NNW of The Geysers, CASat, Jul 17, 4:23 AM PDT · 1904 days ago · 0 km deep · 2 km away
6. 2.23km NNW of The Geysers, CASat, Jul 17, 4:22 AM PDT · 1904 days ago · 0 km deep · 2 km away
7. 2.03km NNW of The Geysers, CASat, Jul 17, 4:22 AM PDT · 1904 days ago · 0 km deep · 2 km away
8. 2.03km NNW of The Geysers, CASat, Jul 17, 4:22 AM PDT · 1904 days ago · 0 km deep · 2 km away
9. 1.93km NNW of The Geysers, CASat, Jul 17, 1:20 AM PDT · 1904 days ago · 0 km deep · 3 km away · felt by 1
10. 1.69km SE of Point Arena, CAFri, Jul 16, 10:38 PM PDT · 1905 days ago · 1 km deep · 76 km away
11. 2.38km WNW of Cobb, CAFri, Jul 16, 8:03 AM PDT · 1905 days ago · 2 km deep · 4 km away
12. 1.62km NNW of The Geysers, CAFri, Jul 16, 7:33 AM PDT · 1905 days ago · 2 km deep · 3 km away
13. 1.613km SE of Talmage, CAFri, Jul 16, 3:54 AM PDT · 1905 days ago · 2 km deep · 36 km away
14. 1.914km SSW of Lake Pillsbury, CAThu, Jul 15, 6:17 PM PDT · 1906 days ago · -1 km deep · 56 km away
15. 1.56km NW of The Geysers, CAThu, Jul 15, 10:01 AM PDT · 1906 days ago · 1 km deep · 4 km away
16. 2.06km W of Cobb, CAWed, Jul 14, 4:37 PM PDT · 1907 days ago · 3 km deep · 3 km away
17. 1.93km WSW of Cobb, CAWed, Jul 14, 4:03 PM PDT · 1907 days ago · -1 km deep · 1 km away
18. 2.23km N of The Geysers, CAWed, Jul 14, 4:03 PM PDT · 1907 days ago · 0 km deep · 2 km away
19. 1.710km WNW of The Geysers, CAMon, Jul 12, 3:29 AM PDT · 1909 days ago · 2 km deep · 8 km away
20. 2.52km ENE of The Geysers, CASun, Jul 11, 10:28 PM PDT · 1910 days ago · 2 km deep · 4 km away · felt by 3

From the USGS Earthquake Hazards Program and its partner networks, event nc73596061. Read Sat, Oct 3, 2026, 6:18 PM UTC.