M1.6 earthquake 18km NNE of Angwin, CA

Magnitude

1.6 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Thu, Nov 4, 2021, 3:40 AM PDT

UTC

2021-11-04 10:40:07 UTC

Depth

8.5 km (5.3 mi), shallow

Epicenter

38.722° N, 122.361° W

Region

California

Felt reports

1

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.14

Depth from

From location

Station coverage gap

121°

Stations used

21

• Angwin, CaliforniaPopulation 3,051. Forecast18 kmNNE
• Clearlake, CaliforniaPopulation 15,182. Forecast35 kmSE
• Santa Rosa, CaliforniaPopulation 178,127. Forecast44 kmNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast637 kmNW

After

1. 1.72km ESE of The Geysers, CAThu, Nov 4, 5:51 PM PDT · 1795 days ago · 1 km deep · 32 km away
2. 2.61km W of Kensington, CAThu, Nov 4, 9:46 PM PDT · 1795 days ago · 5 km deep · 91 km away · felt by 1,893
3. 1.93km NE of The Geysers, CAThu, Nov 4, 10:35 PM PDT · 1795 days ago · 2 km deep · 33 km away · felt by 1
4. 2.88km W of Cobb, CAThu, Nov 4, 11:59 PM PDT · 1795 days ago · 2 km deep · 41 km away · felt by 13
5. 2.31km W of Kensington, CAFri, Nov 5, 2:32 AM PDT · 1794 days ago · 5 km deep · 90 km away · felt by 162
6. 1.81km W of The Geysers, CASat, Nov 6, 2:03 AM PDT · 1793 days ago · 1 km deep · 35 km away
7. 1.92km SW of Cobb, CASat, Nov 6, 4:20 AM PDT · 1793 days ago · 2 km deep · 34 km away · felt by 1
8. 2.12km ENE of The Geysers, CASun, Nov 7, 4:25 AM PST · 1792 days ago · 2 km deep · 33 km away · felt by 1
9. 1.72km ENE of The Geysers, CASun, Nov 7, 5:47 AM PST · 1792 days ago · 1 km deep · 33 km away
10. 1.62km ENE of The Geysers, CASun, Nov 7, 6:02 AM PST · 1792 days ago · 1 km deep · 33 km away · felt by 1
11. 1.86km NW of The Geysers, CASun, Nov 7, 9:36 PM PST · 1792 days ago · 3 km deep · 39 km away
12. 1.713km NW of The Geysers, CAMon, Nov 8, 9:43 AM PST · 1791 days ago · 3 km deep · 47 km away
13. 1.62km ENE of The Geysers, CAMon, Nov 8, 9:22 PM PST · 1791 days ago · 2 km deep · 33 km away
14. 2.23km WSW of Anderson Springs, CATue, Nov 9, 8:48 AM PST · 1790 days ago · 1 km deep · 32 km away
15. 1.57km NW of The Geysers, CAWed, Nov 10, 2:19 AM PST · 1789 days ago · 2 km deep · 40 km away
16. 1.74km W of Cobb, CAWed, Nov 10, 6:07 AM PST · 1789 days ago · 2 km deep · 37 km away
17. 1.81km NNW of The Geysers, CAWed, Nov 10, 1:25 PM PST · 1789 days ago · 2 km deep · 35 km away
18. 1.77km WNW of Cobb, CAThu, Nov 11, 6:26 AM PST · 1788 days ago · 2 km deep · 40 km away
19. 3.14km NW of Cobb, CAThu, Nov 11, 7:05 AM PST · 1788 days ago · 2 km deep · 36 km away · felt by 25
20. 2.43km NW of Cobb, CAThu, Nov 11, 7:05 AM PST · 1788 days ago · 1 km deep · 36 km away
21. 1.96km SW of Arbuckle, CAThu, Nov 11, 8:40 AM PST · 1788 days ago · 27 km deep · 36 km away
22. 1.718km ENE of Nice, CAThu, Nov 11, 2:59 PM PST · 1788 days ago · 5 km deep · 61 km away
23. 1.67km E of Penngrove, CASat, Nov 13, 11:21 PM PST · 1785 days ago · 7 km deep · 52 km away · felt by 1
24. 1.57km W of Cobb, CASun, Nov 14, 1:11 AM PST · 1785 days ago · 3 km deep · 41 km away
25. 1.71km NNE of Kelseyville, CASun, Nov 14, 4:54 PM PST · 1785 days ago · 6 km deep · 50 km away
26. 1.86km NNW of The Geysers, CAMon, Nov 15, 2:03 AM PST · 1784 days ago · 3 km deep · 39 km away
27. 1.714km E of Angwin, CAMon, Nov 15, 10:24 AM PST · 1784 days ago · 5 km deep · 18 km away
28. 1.710km NE of Napa, CAMon, Nov 15, 2:44 PM PST · 1784 days ago · 7 km deep · 42 km away
29. 1.93km SSW of Cobb, CAMon, Nov 15, 6:28 PM PST · 1784 days ago · 1 km deep · 34 km away
30. 1.58km NW of The Geysers, CAMon, Nov 15, 9:35 PM PST · 1784 days ago · 2 km deep · 41 km away
31. 1.63km SE of The Geysers, CATue, Nov 16, 2:11 PM PST · 1783 days ago · 1 km deep · 32 km away
32. 2.513km W of Lakeport, CATue, Nov 16, 4:40 PM PST · 1783 days ago · 3 km deep · 70 km away · felt by 7
33. 2.16km W of Cobb, CATue, Nov 16, 7:34 PM PST · 1783 days ago · 3 km deep · 39 km away
34. 1.713km ENE of Cloverdale, CAFri, Nov 19, 12:49 AM PST · 1780 days ago · 3 km deep · 47 km away
35. 1.83km S of Dillon Beach, CAFri, Nov 19, 1:21 PM PST · 1780 days ago · 10 km deep · 77 km away
36. 2.44km S of Dillon Beach, CAFri, Nov 19, 2:22 PM PST · 1780 days ago · 10 km deep · 77 km away
37. 1.68km W of Cobb, CASat, Nov 20, 12:04 AM PST · 1779 days ago · 2 km deep · 41 km away
38. 2.49km WNW of Cobb, CASun, Nov 21, 11:48 PM PST · 1777 days ago · 3 km deep · 42 km away
39. 1.77km W of Cobb, CAMon, Nov 22, 10:27 AM PST · 1777 days ago · 3 km deep · 40 km away
40. 1.95km NNW of The Geysers, CAMon, Nov 22, 3:42 PM PST · 1777 days ago · 1 km deep · 38 km away
41. 1.910km ENE of Healdsburg, CAMon, Nov 22, 5:41 PM PST · 1777 days ago · 5 km deep · 37 km away
42. 2.06km WNW of Cobb, CATue, Nov 23, 2:28 AM PST · 1776 days ago · 2 km deep · 39 km away
43. 2.05km W of Cobb, CAFri, Nov 26, 12:13 PM PST · 1773 days ago · 1 km deep · 38 km away · felt by 1
44. 2.17km NW of The Geysers, CAFri, Nov 26, 8:01 PM PST · 1773 days ago · 3 km deep · 40 km away
45. 2.27km NW of The Geysers, CAFri, Nov 26, 8:04 PM PST · 1773 days ago · 3 km deep · 40 km away
46. 1.612km NW of Upper Lake, CAFri, Nov 26, 9:34 PM PST · 1773 days ago · 1 km deep · 81 km away
47. 1.88km NW of The Geysers, CASat, Nov 27, 2:05 AM PST · 1772 days ago · 2 km deep · 42 km away
48. 1.67km ENE of Kenwood, CASat, Nov 27, 4:15 AM PST · 1772 days ago · 7 km deep · 33 km away
49. 1.96km NNE of Windsor, CASat, Nov 27, 7:28 AM PST · 1772 days ago · 7 km deep · 41 km away
50. 1.89km W of Cobb, CASun, Nov 28, 11:25 AM PST · 1771 days ago · 1 km deep · 42 km away
51. 1.69km W of Cobb, CASun, Nov 28, 11:26 AM PST · 1771 days ago · 1 km deep · 42 km away
52. 1.59km WNW of Cobb, CASun, Nov 28, 11:27 AM PST · 1771 days ago · 1 km deep · 42 km away
53. 1.616km ESE of Boonville, CAMon, Nov 29, 12:59 PM PST · 1770 days ago · 6 km deep · 77 km away
54. 2.110km N of Lake Pillsbury, CAMon, Nov 29, 1:07 PM PST · 1770 days ago · 6 km deep · 99 km away
55. 1.64km SSE of Redwood Valley, CAMon, Nov 29, 2:44 PM PST · 1770 days ago · 6 km deep · 91 km away
56. 2.51km W of Kensington, CAMon, Nov 29, 7:30 PM PST · 1770 days ago · 5 km deep · 91 km away · felt by 965
57. 2.01km W of Kensington, CAMon, Nov 29, 7:37 PM PST · 1770 days ago · 5 km deep · 90 km away · felt by 43
58. 1.68km NW of The Geysers, CATue, Nov 30, 9:17 AM PST · 1769 days ago · 2 km deep · 41 km away
59. 1.76km NW of The Geysers, CATue, Nov 30, 6:38 PM PST · 1769 days ago · 3 km deep · 39 km away
60. 2.53km ENE of The Geysers, CATue, Nov 30, 7:30 PM PST · 1769 days ago · 2 km deep · 33 km away · felt by 6

The first 60 of 136.

Before

1. 1.96km NW of The Geysers, CAWed, Nov 3, 7:36 PM PDT · 1796 days ago · 1 km deep · 40 km away
2. 1.511km WNW of The Geysers, CAWed, Nov 3, 4:01 AM PDT · 1796 days ago · 3 km deep · 46 km away
3. 1.99km NW of The Geysers, CATue, Nov 2, 5:02 PM PDT · 1797 days ago · 1 km deep · 42 km away
4. 1.56km W of Cobb, CATue, Nov 2, 11:12 AM PDT · 1797 days ago · 2 km deep · 39 km away
5. 1.76km NW of The Geysers, CATue, Nov 2, 6:32 AM PDT · 1797 days ago · 3 km deep · 40 km away
6. 1.52km WSW of Anderson Springs, CATue, Nov 2, 3:50 AM PDT · 1797 days ago · 2 km deep · 31 km away
7. 1.51km NNW of The Geysers, CASun, Oct 31, 2:10 PM PDT · 1799 days ago · 2 km deep · 35 km away
8. 1.52km N of The Geysers, CASun, Oct 31, 8:15 AM PDT · 1799 days ago · 4 km deep · 35 km away
9. 1.98km NW of The Geysers, CASat, Oct 30, 8:29 PM PDT · 1800 days ago · 2 km deep · 41 km away
10. 1.910km SSE of Talmage, CASat, Oct 30, 3:06 PM PDT · 1800 days ago · 6 km deep · 75 km away
11. 2.110km SSE of Talmage, CASat, Oct 30, 8:53 AM PDT · 1800 days ago · 7 km deep · 75 km away
12. 1.61km NNW of The Geysers, CAWed, Oct 27, 1:04 PM PDT · 1803 days ago · 2 km deep · 35 km away
13. 1.97km NW of The Geysers, CATue, Oct 26, 6:31 PM PDT · 1804 days ago · 1 km deep · 40 km away
14. 1.67km NW of The Geysers, CATue, Oct 26, 6:31 PM PDT · 1804 days ago · 2 km deep · 41 km away
15. 1.718km SE of Lake Pillsbury, CATue, Oct 26, 1:45 PM PDT · 1804 days ago · 5 km deep · 75 km away
16. 2.03km SSW of Anderson Springs, CATue, Oct 26, 11:40 AM PDT · 1804 days ago · 1 km deep · 29 km away
17. 2.92km SW of Anderson Springs, CATue, Oct 26, 11:38 AM PDT · 1804 days ago · 1 km deep · 30 km away · felt by 5
18. 1.86km W of Cobb, CATue, Oct 26, 12:15 AM PDT · 1804 days ago · 1 km deep · 39 km away
19. 2.07km W of Kenwood, CAMon, Oct 25, 7:39 PM PDT · 1805 days ago · 5 km deep · 40 km away · felt by 3
20. 1.85km NNW of The Geysers, CAMon, Oct 25, 6:55 PM PDT · 1805 days ago · 2 km deep · 38 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73648610. Read Sun, Oct 4, 2026, 6:40 PM UTC.