M1.6 earthquake 9km SSE of Redway, CA

Magnitude

1.6 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Tue, Jul 20, 2021, 2:28 AM PDT

UTC

2021-07-20 09:28:07 UTC

Depth

19.2 km (11.9 mi), shallow

Epicenter

40.045° N, 123.781° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

104°

Stations used

19

• Garberville, CaliforniaPopulation 913. Forecast6 kmS
• Fortuna, CaliforniaPopulation 12,000. Forecast69 kmSSE
• Chico, CaliforniaPopulation 121,345. Forecast170 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast828 kmNW

After

1. 2.519km SE of Bayside, CATue, Jul 20, 6:57 PM PDT · 1901 days ago · 25 km deep · 76 km away
2. 4.312km WSW of Petrolia, CAWed, Jul 21, 3:05 AM PDT · 1901 days ago · 35 km deep · 60 km away · felt by 25
3. 1.716km SW of Ferndale, CAWed, Jul 21, 3:45 AM PDT · 1900 days ago · 25 km deep · 70 km away
4. 2.840km WNW of Petrolia, CAWed, Jul 21, 5:25 AM PDT · 1900 days ago · 24 km deep · 92 km away
5. 1.733km ENE of Hydesville, CAWed, Jul 21, 6:25 AM PDT · 1900 days ago · 26 km deep · 68 km away
6. 1.612km N of Brooktrails, CAThu, Jul 22, 1:37 PM PDT · 1899 days ago · 7 km deep · 65 km away
7. 2.041km NE of Covelo, CAThu, Jul 22, 1:59 PM PDT · 1899 days ago · 4 km deep · 74 km away
8. 2.733km WNW of Petrolia, CAThu, Jul 22, 8:42 PM PDT · 1899 days ago · 23 km deep · 85 km away
9. 2.311km W of Alder Springs, CAThu, Jul 22, 10:15 PM PDT · 1899 days ago · 6 km deep · 90 km away
10. 1.710km SSE of Laytonville, CAThu, Jul 22, 11:57 PM PDT · 1899 days ago · 9 km deep · 57 km away
11. 2.77km W of Petrolia, CAFri, Jul 23, 1:09 PM PDT · 1898 days ago · 29 km deep · 59 km away · felt by 2
12. 2.011km W of Alder Springs, CAFri, Jul 23, 4:13 PM PDT · 1898 days ago · 4 km deep · 90 km away
13. 2.510km WNW of Alder Springs, CASat, Jul 24, 6:37 AM PDT · 1897 days ago · 1 km deep · 90 km away
14. 2.912km WSW of Petrolia, CASat, Jul 24, 4:06 PM PDT · 1897 days ago · 32 km deep · 61 km away · felt by 1
15. 2.311km W of Alder Springs, CASat, Jul 24, 7:19 PM PDT · 1897 days ago · 2 km deep · 90 km away
16. 2.811km W of Alder Springs, CASat, Jul 24, 7:35 PM PDT · 1897 days ago · 0 km deep · 90 km away
17. 2.18km W of Petrolia, CASun, Jul 25, 1:05 PM PDT · 1896 days ago · 29 km deep · 59 km away
18. 2.78km W of Petrolia, CASun, Jul 25, 4:20 PM PDT · 1896 days ago · 29 km deep · 59 km away
19. 3.211km W of Alder Springs, CASun, Jul 25, 6:21 PM PDT · 1896 days ago · 5 km deep · 90 km away · felt by 9
20. 2.412km N of Laytonville, CAMon, Jul 26, 1:22 AM PDT · 1896 days ago · 7 km deep · 37 km away
21. 1.75km W of Petrolia, CAMon, Jul 26, 12:27 PM PDT · 1895 days ago · 29 km deep · 57 km away
22. 1.94km ESE of Redway, CAMon, Jul 26, 5:35 PM PDT · 1895 days ago · 21 km deep · 7 km away
23. 2.511km W of Alder Springs, CAMon, Jul 26, 10:40 PM PDT · 1895 days ago · 1 km deep · 90 km away
24. 2.89km W of Petrolia, CATue, Jul 27, 3:37 AM PDT · 1894 days ago · 28 km deep · 61 km away
25. 2.011km W of Alder Springs, CATue, Jul 27, 11:10 AM PDT · 1894 days ago · 5 km deep · 89 km away
26. 1.614km NE of Redwood Valley, CATue, Jul 27, 5:40 PM PDT · 1894 days ago · 3 km deep · 95 km away
27. 2.511km WNW of Alder Springs, CATue, Jul 27, 9:34 PM PDT · 1894 days ago · 5 km deep · 90 km away
28. 2.07km ESE of Willits, CATue, Jul 27, 11:34 PM PDT · 1894 days ago · 7 km deep · 84 km away
29. 2.56km N of Petrolia, CATue, Jul 27, 11:52 PM PDT · 1894 days ago · 27 km deep · 56 km away
30. 2.321km W of Petrolia, CAWed, Jul 28, 2:43 AM PDT · 1894 days ago · 18 km deep · 69 km away
31. 3.07km W of Petrolia, CAThu, Jul 29, 11:39 AM PDT · 1892 days ago · 29 km deep · 58 km away
32. 1.86km W of Petrolia, CAThu, Jul 29, 8:30 PM PDT · 1892 days ago · 28 km deep · 58 km away
33. 1.941km NE of Covelo, CAFri, Jul 30, 6:20 AM PDT · 1891 days ago · 4 km deep · 74 km away
34. 2.020km WSW of Petrolia, CAFri, Jul 30, 9:17 AM PDT · 1891 days ago · 18 km deep · 68 km away
35. 1.910km SSE of Redway, CAFri, Jul 30, 3:36 PM PDT · 1891 days ago · 17 km deep · 1 km away
36. 2.012km WNW of Alder Springs, CASat, Jul 31, 1:47 PM PDT · 1890 days ago · 3 km deep · 89 km away
37. 2.712km WNW of Alder Springs, CASat, Jul 31, 2:47 PM PDT · 1890 days ago · -1 km deep · 88 km away
38. 3.012km WNW of Alder Springs, CASat, Jul 31, 3:16 PM PDT · 1890 days ago · 0 km deep · 88 km away · felt by 1
39. 1.713km WNW of Alder Springs, CASat, Jul 31, 3:53 PM PDT · 1890 days ago · -1 km deep · 88 km away
40. 1.912km WNW of Alder Springs, CASat, Jul 31, 7:29 PM PDT · 1890 days ago · 1 km deep · 88 km away
41. 2.212km WNW of Alder Springs, CASun, Aug 1, 4:54 AM PDT · 1889 days ago · 6 km deep · 89 km away
42. 1.79km WSW of Petrolia, CASun, Aug 1, 7:00 AM PDT · 1889 days ago · 8 km deep · 59 km away
43. 2.210km WNW of Alder Springs, CASun, Aug 1, 12:45 PM PDT · 1889 days ago · 4 km deep · 90 km away
44. 2.012km WNW of Alder Springs, CASun, Aug 1, 1:34 PM PDT · 1889 days ago · 7 km deep · 89 km away
45. 2.818km W of Petrolia, CASun, Aug 1, 11:34 PM PDT · 1889 days ago · 33 km deep · 67 km away
46. 1.66km W of Laytonville, CAMon, Aug 2, 1:30 AM PDT · 1889 days ago · 3 km deep · 43 km away
47. 2.512km W of Alder Springs, CAMon, Aug 2, 7:49 AM PDT · 1888 days ago · 5 km deep · 89 km away · felt by 1
48. 2.113km WNW of Alder Springs, CAMon, Aug 2, 7:50 AM PDT · 1888 days ago · 1 km deep · 88 km away
49. 2.711km W of Alder Springs, CAMon, Aug 2, 8:04 AM PDT · 1888 days ago · 6 km deep · 89 km away · felt by 1
50. 2.112km W of Alder Springs, CAMon, Aug 2, 8:48 AM PDT · 1888 days ago · 4 km deep · 89 km away
51. 2.012km W of Alder Springs, CAMon, Aug 2, 11:20 AM PDT · 1888 days ago · 4 km deep · 89 km away · felt by 1
52. 3.712km W of Alder Springs, CAMon, Aug 2, 11:28 AM PDT · 1888 days ago · 8 km deep · 89 km away · felt by 5
53. 2.612km WNW of Alder Springs, CAMon, Aug 2, 11:30 AM PDT · 1888 days ago · 2 km deep · 89 km away
54. 2.812km W of Alder Springs, CAMon, Aug 2, 11:38 AM PDT · 1888 days ago · 2 km deep · 89 km away
55. 1.812km W of Alder Springs, CAMon, Aug 2, 11:42 AM PDT · 1888 days ago · 0 km deep · 88 km away
56. 2.112km W of Alder Springs, CAMon, Aug 2, 11:49 AM PDT · 1888 days ago · 4 km deep · 89 km away
57. 2.113km W of Alder Springs, CAMon, Aug 2, 12:02 PM PDT · 1888 days ago · 1 km deep · 88 km away
58. 1.913km W of Alder Springs, CAMon, Aug 2, 12:25 PM PDT · 1888 days ago · 1 km deep · 88 km away
59. 2.112km W of Alder Springs, CAMon, Aug 2, 12:54 PM PDT · 1888 days ago · 6 km deep · 89 km away
60. 2.912km W of Alder Springs, CAMon, Aug 2, 12:58 PM PDT · 1888 days ago · 1 km deep · 88 km away

The first 60 of 190.

Before

1. 2.14km SW of Petrolia, CASun, Jul 18, 12:38 AM PDT · 1904 days ago · 31 km deep · 54 km away
2. 2.49km W of Petrolia, CASun, Jul 18, 12:05 AM PDT · 1904 days ago · 29 km deep · 61 km away · felt by 7
3. 5.112km W of Petrolia, CASat, Jul 17, 11:46 PM PDT · 1904 days ago · 31 km deep · 63 km away · felt by 751
4. 2.36km E of Willits, CASat, Jul 17, 8:34 PM PDT · 1904 days ago · 6 km deep · 82 km away · felt by 1
5. 2.421km W of Petrolia, CAThu, Jul 15, 5:21 AM PDT · 1906 days ago · 8 km deep · 71 km away
6. 2.48km WSW of Petrolia, CATue, Jul 13, 5:55 AM PDT · 1908 days ago · 20 km deep · 57 km away
7. 1.89km SSW of Ferndale, CAMon, Jul 12, 12:38 AM PDT · 1910 days ago · 18 km deep · 66 km away
8. 1.69km SSW of Ferndale, CASun, Jul 11, 11:58 PM PDT · 1910 days ago · 19 km deep · 66 km away
9. 1.79km SSW of Ferndale, CASun, Jul 11, 11:51 PM PDT · 1910 days ago · 18 km deep · 66 km away
10. 1.66km S of Fort Bragg, CASun, Jul 11, 6:59 PM PDT · 1910 days ago · 6 km deep · 73 km away
11. 1.74km NW of Redwood Valley, CASat, Jul 10, 11:06 PM PDT · 1911 days ago · 5 km deep · 96 km away
12. 1.87km W of Laytonville, CASat, Jul 10, 7:16 PM PDT · 1911 days ago · 4 km deep · 43 km away
13. 2.022km W of Petrolia, CASat, Jul 10, 3:35 AM PDT · 1912 days ago · 19 km deep · 70 km away
14. 2.821km W of Petrolia, CASat, Jul 10, 3:32 AM PDT · 1912 days ago · 20 km deep · 70 km away
15. 2.411km W of Laytonville, CASat, Jul 10, 1:59 AM PDT · 1912 days ago · 4 km deep · 43 km away
16. 1.67km ENE of Brooktrails, CAFri, Jul 9, 11:58 PM PDT · 1912 days ago · 7 km deep · 76 km away
17. 1.516km SSW of Willits, CAThu, Jul 8, 2:59 AM PDT · 1914 days ago · 5 km deep · 92 km away
18. 2.011km SSW of Ferndale, CATue, Jul 6, 5:19 PM PDT · 1915 days ago · 19 km deep · 66 km away
19. 1.722km W of Petrolia, CASun, Jul 4, 1:35 PM PDT · 1917 days ago · 26 km deep · 73 km away
20. 2.124km WNW of Weaverville, CASun, Jul 4, 8:36 AM PDT · 1917 days ago · 32 km deep · 94 km away · felt by 1

From the USGS Earthquake Hazards Program and its partner networks, event nc73595981. Read Sat, Oct 3, 2026, 10:05 PM UTC.