M1.8 earthquake 15km ENE of Willows, CA

Magnitude

1.8 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Mon, Jul 12, 2021, 2:17 PM PDT

UTC

2021-07-12 21:17:43 UTC

Depth

19.1 km (11.8 mi), shallow

Epicenter

39.558° N, 122.019° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 2.2 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

104°

Stations used

12

• Willows, CaliforniaPopulation 6,069. Forecast15 kmENE
• Chico, CaliforniaPopulation 121,345. Forecast25 kmSW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast698 kmNNW

After

1. 1.74km SSE of Mineral, CATue, Jul 13, 11:05 AM PDT · 1909 days ago · 3 km deep · 93 km away
2. 1.914km SSW of Lake Pillsbury, CAThu, Jul 15, 6:17 PM PDT · 1906 days ago · -1 km deep · 89 km away
3. 2.018km ESE of Anderson, CASat, Jul 17, 12:15 AM PDT · 1905 days ago · 13 km deep · 94 km away
4. 1.85km SSE of Mineral, CASat, Jul 17, 5:44 AM PDT · 1905 days ago · 11 km deep · 94 km away
5. 2.16km N of Hamilton City, CAThu, Jul 22, 3:39 AM PDT · 1900 days ago · 15 km deep · 27 km away
6. 2.58km NW of Dunnigan, CAThu, Jul 22, 12:19 PM PDT · 1900 days ago · 16 km deep · 69 km away · felt by 6
7. 2.041km NE of Covelo, CAThu, Jul 22, 1:59 PM PDT · 1899 days ago · 4 km deep · 94 km away
8. 2.311km W of Alder Springs, CAThu, Jul 22, 10:15 PM PDT · 1899 days ago · 6 km deep · 72 km away
9. 2.011km W of Alder Springs, CAFri, Jul 23, 4:13 PM PDT · 1898 days ago · 4 km deep · 72 km away
10. 2.316km E of Willows, CASat, Jul 24, 1:54 AM PDT · 1898 days ago · 17 km deep · 2 km away
11. 2.510km WNW of Alder Springs, CASat, Jul 24, 6:37 AM PDT · 1898 days ago · 1 km deep · 72 km away
12. 2.311km W of Alder Springs, CASat, Jul 24, 7:19 PM PDT · 1897 days ago · 2 km deep · 72 km away
13. 2.811km W of Alder Springs, CASat, Jul 24, 7:35 PM PDT · 1897 days ago · 0 km deep · 72 km away
14. 3.211km W of Alder Springs, CASun, Jul 25, 6:21 PM PDT · 1896 days ago · 5 km deep · 72 km away · felt by 9
15. 2.511km W of Alder Springs, CAMon, Jul 26, 10:40 PM PDT · 1895 days ago · 1 km deep · 72 km away
16. 2.011km W of Alder Springs, CATue, Jul 27, 11:10 AM PDT · 1895 days ago · 5 km deep · 73 km away
17. 1.614km NE of Redwood Valley, CATue, Jul 27, 5:40 PM PDT · 1894 days ago · 3 km deep · 96 km away
18. 2.511km WNW of Alder Springs, CATue, Jul 27, 9:34 PM PDT · 1894 days ago · 5 km deep · 72 km away
19. 1.97km ESE of Lake Pillsbury, CAThu, Jul 29, 11:47 PM PDT · 1892 days ago · 4 km deep · 77 km away
20. 1.941km NE of Covelo, CAFri, Jul 30, 6:20 AM PDT · 1892 days ago · 4 km deep · 94 km away
21. 1.610km ENE of Hidden Valley Lake, CASat, Jul 31, 11:46 AM PDT · 1891 days ago · 9 km deep · 87 km away
22. 2.012km WNW of Alder Springs, CASat, Jul 31, 1:47 PM PDT · 1890 days ago · 3 km deep · 73 km away
23. 2.712km WNW of Alder Springs, CASat, Jul 31, 2:47 PM PDT · 1890 days ago · -1 km deep · 74 km away
24. 3.012km WNW of Alder Springs, CASat, Jul 31, 3:16 PM PDT · 1890 days ago · 0 km deep · 73 km away · felt by 1
25. 1.713km WNW of Alder Springs, CASat, Jul 31, 3:53 PM PDT · 1890 days ago · -1 km deep · 74 km away
26. 1.912km WNW of Alder Springs, CASat, Jul 31, 7:29 PM PDT · 1890 days ago · 1 km deep · 74 km away
27. 2.212km WNW of Alder Springs, CASun, Aug 1, 4:54 AM PDT · 1890 days ago · 6 km deep · 73 km away
28. 2.210km WNW of Alder Springs, CASun, Aug 1, 12:45 PM PDT · 1889 days ago · 4 km deep · 72 km away
29. 2.012km WNW of Alder Springs, CASun, Aug 1, 1:34 PM PDT · 1889 days ago · 7 km deep · 73 km away
30. 2.512km W of Alder Springs, CAMon, Aug 2, 7:49 AM PDT · 1889 days ago · 5 km deep · 73 km away · felt by 1
31. 2.113km WNW of Alder Springs, CAMon, Aug 2, 7:50 AM PDT · 1889 days ago · 1 km deep · 74 km away
32. 2.711km W of Alder Springs, CAMon, Aug 2, 8:04 AM PDT · 1889 days ago · 6 km deep · 73 km away · felt by 1
33. 2.112km W of Alder Springs, CAMon, Aug 2, 8:48 AM PDT · 1889 days ago · 4 km deep · 73 km away
34. 2.012km W of Alder Springs, CAMon, Aug 2, 11:20 AM PDT · 1889 days ago · 4 km deep · 73 km away · felt by 1
35. 3.712km W of Alder Springs, CAMon, Aug 2, 11:28 AM PDT · 1889 days ago · 8 km deep · 73 km away · felt by 5
36. 2.612km WNW of Alder Springs, CAMon, Aug 2, 11:30 AM PDT · 1889 days ago · 2 km deep · 73 km away
37. 2.812km W of Alder Springs, CAMon, Aug 2, 11:38 AM PDT · 1889 days ago · 2 km deep · 73 km away
38. 1.812km W of Alder Springs, CAMon, Aug 2, 11:42 AM PDT · 1889 days ago · 0 km deep · 74 km away
39. 2.112km W of Alder Springs, CAMon, Aug 2, 11:49 AM PDT · 1889 days ago · 4 km deep · 73 km away
40. 2.113km W of Alder Springs, CAMon, Aug 2, 12:02 PM PDT · 1889 days ago · 1 km deep · 74 km away
41. 1.913km W of Alder Springs, CAMon, Aug 2, 12:25 PM PDT · 1889 days ago · 1 km deep · 74 km away
42. 2.112km W of Alder Springs, CAMon, Aug 2, 12:54 PM PDT · 1888 days ago · 6 km deep · 74 km away
43. 2.912km W of Alder Springs, CAMon, Aug 2, 12:58 PM PDT · 1888 days ago · 1 km deep · 74 km away
44. 2.712km W of Alder Springs, CAMon, Aug 2, 1:15 PM PDT · 1888 days ago · 4 km deep · 74 km away
45. 1.712km W of Alder Springs, CAMon, Aug 2, 1:18 PM PDT · 1888 days ago · 3 km deep · 74 km away
46. 1.913km W of Alder Springs, CAMon, Aug 2, 1:41 PM PDT · 1888 days ago · 3 km deep · 74 km away
47. 2.411km W of Alder Springs, CAMon, Aug 2, 2:05 PM PDT · 1888 days ago · 3 km deep · 72 km away
48. 2.413km WNW of Alder Springs, CAMon, Aug 2, 3:20 PM PDT · 1888 days ago · 10 km deep · 74 km away
49. 2.212km W of Alder Springs, CAMon, Aug 2, 3:28 PM PDT · 1888 days ago · 0 km deep · 73 km away
50. 1.912km WNW of Alder Springs, CAMon, Aug 2, 3:30 PM PDT · 1888 days ago · 0 km deep · 74 km away
51. 2.110km W of Alder Springs, CAMon, Aug 2, 4:03 PM PDT · 1888 days ago · 0 km deep · 72 km away
52. 1.813km W of Alder Springs, CAMon, Aug 2, 4:42 PM PDT · 1888 days ago · 3 km deep · 74 km away
53. 1.713km W of Alder Springs, CAMon, Aug 2, 5:35 PM PDT · 1888 days ago · 0 km deep · 74 km away
54. 2.616km E of Willows, CAMon, Aug 2, 6:02 PM PDT · 1888 days ago · 25 km deep · 5 km away · felt by 1
55. 1.812km W of Alder Springs, CAMon, Aug 2, 6:11 PM PDT · 1888 days ago · 2 km deep · 74 km away
56. 1.812km W of Alder Springs, CAMon, Aug 2, 7:19 PM PDT · 1888 days ago · 2 km deep · 73 km away
57. 1.912km W of Alder Springs, CAMon, Aug 2, 8:14 PM PDT · 1888 days ago · 7 km deep · 73 km away
58. 2.713km W of Alder Springs, CAMon, Aug 2, 8:16 PM PDT · 1888 days ago · 1 km deep · 74 km away · felt by 1
59. 2.113km W of Alder Springs, CAMon, Aug 2, 8:39 PM PDT · 1888 days ago · 5 km deep · 74 km away
60. 2.912km W of Alder Springs, CAMon, Aug 2, 11:10 PM PDT · 1888 days ago · 2 km deep · 73 km away · felt by 2

The first 60 of 115.

Before

1. 1.86km ESE of Clearlake Oaks, CAFri, Jul 9, 12:26 AM PDT · 1913 days ago · 0 km deep · 78 km away
2. 1.85km W of Paradise, CAThu, Jul 8, 12:10 PM PDT · 1914 days ago · 0 km deep · 37 km away
3. 1.717km NNE of Nice, CAMon, Jul 5, 9:13 PM PDT · 1916 days ago · 5 km deep · 71 km away
4. 2.17km E of Clearlake Oaks, CAFri, Jul 2, 5:03 PM PDT · 1919 days ago · 3 km deep · 77 km away
5. 1.56 km SSE of Quincy, CaliforniaThu, Jul 1, 10:22 PM PDT · 1920 days ago · 4 km deep · 100 km away
6. 2.015km WNW of Lake Pillsbury, CAThu, Jul 1, 6:23 AM PDT · 1921 days ago · 7 km deep · 96 km away
7. 1.58km WSW of Williams, CAThu, Jul 1, 5:18 AM PDT · 1921 days ago · 1 km deep · 50 km away
8. 2.26km SSE of Quincy, CAWed, Jun 30, 3:24 PM PDT · 1921 days ago · 9 km deep · 100 km away
9. 3.27km WSW of Williams, CAWed, Jun 30, 3:19 PM PDT · 1921 days ago · 0 km deep · 50 km away · felt by 25
10. 2.110km W of Almanor, CATue, Jun 22, 3:26 PM PDT · 1929 days ago · 8 km deep · 95 km away
11. 2.111km W of Almanor, CAMon, Jun 21, 10:22 PM PDT · 1930 days ago · 5 km deep · 95 km away
12. 1.69km N of Biggs, CAMon, Jun 21, 2:54 PM PDT · 1930 days ago · 3 km deep · 27 km away
13. 1.92km N of Lake Pillsbury, CAMon, Jun 21, 10:29 AM PDT · 1931 days ago · 8 km deep · 82 km away · felt by 1
14. 1.82km NNW of Lake Pillsbury, CAMon, Jun 21, 10:28 AM PDT · 1931 days ago · 5 km deep · 82 km away
15. 2.01km NNE of Lake Pillsbury, CAMon, Jun 21, 9:35 AM PDT · 1931 days ago · 7 km deep · 81 km away
16. 1.711km E of Hidden Valley Lake, CASun, Jun 20, 9:24 AM PDT · 1932 days ago · 8 km deep · 92 km away
17. 1.711km ESE of Redwood Valley, CASat, Jun 19, 6:00 PM PDT · 1932 days ago · 7 km deep · 98 km away
18. 1.514km WSW of Almanor, CAFri, Jun 18, 1:55 PM PDT · 1933 days ago · 11 km deep · 89 km away
19. 1.84km NNE of Lake Pillsbury, CAThu, Jun 17, 4:02 PM PDT · 1934 days ago · 11 km deep · 80 km away
20. 1.613km SW of Almanor, CAWed, Jun 16, 7:58 PM PDT · 1935 days ago · 9 km deep · 89 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73588516. Read Sun, Oct 4, 2026, 7:00 AM UTC.