M1.9 earthquake 29km NE of Redway, CA

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Fri, Apr 9, 2021, 3:30 AM PDT

UTC

2021-04-09 10:30:29 UTC

Depth

3.8 km (2.4 mi), shallow

Epicenter

40.313° N, 123.585° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.6 km in depth

Magnitude uncertainty

±0.15

Depth from

From location

Station coverage gap

46°

Stations used

26

• Miranda, CaliforniaPopulation 520. Forecast22 kmENE
• Fortuna, CaliforniaPopulation 12,000. Forecast58 kmESE
• Chico, CaliforniaPopulation 121,345. Forecast162 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast841 kmNNW

After

1. 2.326km S of Hayfork, CAFri, Apr 9, 4:12 PM PDT · 2003 days ago · 38 km deep · 31 km away
2. 1.835km S of Willow Creek, CASat, Apr 10, 3:54 AM PDT · 2003 days ago · 24 km deep · 35 km away
3. 1.910km S of Petrolia, CASun, Apr 11, 12:59 PM PDT · 2002 days ago · 7 km deep · 59 km away
4. 2.630km WNW of Petrolia, CATue, Apr 13, 9:39 PM PDT · 1999 days ago · 25 km deep · 88 km away
5. 2.129km W of Petrolia, CAWed, Apr 14, 1:37 AM PDT · 1999 days ago · 18 km deep · 88 km away
6. 2.516km WSW of Petrolia, CAThu, Apr 15, 12:58 AM PDT · 1998 days ago · 13 km deep · 75 km away
7. 3.517km WNW of Petrolia, CAThu, Apr 15, 9:09 PM PDT · 1997 days ago · 20 km deep · 74 km away · felt by 17
8. 2.27km NNW of Hayfork, CAFri, Apr 16, 10:48 PM PDT · 1996 days ago · 32 km deep · 46 km away
9. 1.815km WSW of Petrolia, CASat, Apr 17, 1:43 AM PDT · 1996 days ago · 15 km deep · 74 km away
10. 2.741km NNE of Covelo, CASat, Apr 17, 9:29 AM PDT · 1996 days ago · 45 km deep · 51 km away
11. 2.940km NNE of Covelo, CASat, Apr 17, 12:35 PM PDT · 1996 days ago · 46 km deep · 51 km away · felt by 1
12. 2.338km NNE of Covelo, CASat, Apr 17, 1:39 PM PDT · 1996 days ago · 40 km deep · 52 km away
13. 1.54km ESE of Laytonville, CASat, Apr 17, 5:48 PM PDT · 1995 days ago · 9 km deep · 72 km away
14. 2.638km WNW of Petrolia, CASun, Apr 18, 4:46 PM PDT · 1994 days ago · 24 km deep · 97 km away
15. 2.528km W of Petrolia, CASun, Apr 18, 10:59 PM PDT · 1994 days ago · 20 km deep · 88 km away
16. 2.012km NNE of Brooktrails, CATue, Apr 20, 12:59 AM PDT · 1993 days ago · 9 km deep · 88 km away
17. 4.020km ENE of Redway, CATue, Apr 20, 2:48 AM PDT · 1993 days ago · 34 km deep · 14 km away · felt by 26
18. 2.718km W of Petrolia, CATue, Apr 20, 7:08 AM PDT · 1993 days ago · 23 km deep · 78 km away · felt by 1
19. 2.141km NE of Covelo, CATue, Apr 20, 10:15 AM PDT · 1993 days ago · 9 km deep · 62 km away
20. 2.510km WNW of Humboldt Hill, CAWed, Apr 21, 9:58 PM PDT · 1991 days ago · 25 km deep · 77 km away
21. 3.915km NNW of Lake Pillsbury, CAFri, Apr 23, 4:18 AM PDT · 1990 days ago · 7 km deep · 99 km away · felt by 14
22. 1.716km NE of Willits, CAFri, Apr 23, 4:47 PM PDT · 1989 days ago · 6 km deep · 97 km away
23. 1.614km SW of Ferndale, CAFri, Apr 23, 7:32 PM PDT · 1989 days ago · 20 km deep · 69 km away
24. 2.07km N of Ferndale, CAFri, Apr 23, 11:14 PM PDT · 1989 days ago · 9 km deep · 68 km away
25. 2.116km E of Petrolia, CASat, Apr 24, 5:32 PM PDT · 1988 days ago · 31 km deep · 44 km away
26. 1.64km ENE of Laytonville, CASun, Apr 25, 12:18 AM PDT · 1988 days ago · 10 km deep · 69 km away
27. 1.623km W of Petrolia, CASun, Apr 25, 11:32 PM PDT · 1987 days ago · 21 km deep · 82 km away
28. 2.34km NE of Laytonville, CAMon, Apr 26, 4:54 AM PDT · 1987 days ago · 7 km deep · 68 km away · felt by 2
29. 2.63km ENE of Laytonville, CAMon, Apr 26, 5:18 AM PDT · 1987 days ago · 8 km deep · 69 km away · felt by 2
30. 2.523km W of Petrolia, CAWed, Apr 28, 2:56 AM PDT · 1985 days ago · 22 km deep · 82 km away
31. 2.632km WNW of Ferndale, CAWed, Apr 28, 12:33 PM PDT · 1985 days ago · 23 km deep · 96 km away · felt by 2
32. 1.924km WNW of Petrolia, CAThu, Apr 29, 9:01 PM PDT · 1983 days ago · 21 km deep · 83 km away
33. 1.818km WNW of Ferndale, CASun, May 2, 5:53 AM PDT · 1981 days ago · 10 km deep · 83 km away
34. 2.17km ENE of Laytonville, CAMon, May 3, 2:19 AM PDT · 1980 days ago · 10 km deep · 69 km away
35. 2.811km NW of Eureka, CATue, May 4, 12:37 AM PDT · 1979 days ago · 24 km deep · 83 km away · felt by 66
36. 2.31km N of Redway, CATue, May 4, 5:49 AM PDT · 1979 days ago · 26 km deep · 29 km away
37. 2.835km WNW of Petrolia, CATue, May 4, 2:38 PM PDT · 1979 days ago · 23 km deep · 93 km away
38. 2.531km WNW of Petrolia, CAWed, May 5, 2:30 PM PDT · 1978 days ago · 22 km deep · 89 km away · felt by 1
39. 1.714km WSW of Petrolia, CAThu, May 6, 3:51 AM PDT · 1977 days ago · 13 km deep · 72 km away
40. 1.813km W of Petrolia, CAFri, May 7, 2:50 AM PDT · 1976 days ago · 19 km deep · 72 km away
41. 2.219km SSE of Rio Dell, CAFri, May 7, 9:31 AM PDT · 1976 days ago · 30 km deep · 38 km away
42. 2.510km NNW of Petrolia, CASat, May 8, 1:29 AM PDT · 1975 days ago · 29 km deep · 65 km away · felt by 1
43. 1.83km ENE of Laytonville, CASat, May 8, 9:50 AM PDT · 1975 days ago · 10 km deep · 69 km away
44. 2.423km W of Petrolia, CASun, May 9, 9:44 AM PDT · 1974 days ago · 21 km deep · 82 km away
45. 1.615km SE of Laytonville, CATue, May 11, 12:28 AM PDT · 1972 days ago · 7 km deep · 82 km away
46. 2.126km W of Rancho Tehama Reserve, CATue, May 11, 8:38 AM PDT · 1972 days ago · 1 km deep · 82 km away
47. 2.713km NW of Petrolia, CAWed, May 12, 12:11 AM PDT · 1971 days ago · 17 km deep · 70 km away · felt by 1
48. 2.326km N of Laytonville, CAWed, May 12, 12:53 AM PDT · 1971 days ago · 8 km deep · 44 km away
49. 1.926km N of Laytonville, CAWed, May 12, 1:04 AM PDT · 1971 days ago · 9 km deep · 44 km away
50. 1.812km SE of Petrolia, CAWed, May 12, 2:55 AM PDT · 1971 days ago · 11 km deep · 52 km away
51. 2.110km SSW of Ferndale, CAWed, May 12, 11:32 AM PDT · 1971 days ago · 18 km deep · 63 km away
52. 1.68km SSE of Laytonville, CAFri, May 14, 2:37 PM PDT · 1969 days ago · 8 km deep · 77 km away
53. 2.71km NNE of Humboldt Hill, CAFri, May 14, 8:02 PM PDT · 1968 days ago · 5 km deep · 69 km away · felt by 199
54. 2.05km WSW of Laytonville, CASat, May 15, 9:39 AM PDT · 1968 days ago · 3 km deep · 71 km away
55. 2.98km W of Redway, CASun, May 16, 6:26 AM PDT · 1967 days ago · 19 km deep · 36 km away · felt by 4
56. 1.88km W of Redway, CASun, May 16, 8:07 AM PDT · 1967 days ago · 18 km deep · 35 km away
57. 2.88km W of Redway, CASun, May 16, 11:36 PM PDT · 1966 days ago · 18 km deep · 36 km away · felt by 5
58. 2.813km W of Petrolia, CAMon, May 17, 12:09 AM PDT · 1966 days ago · 16 km deep · 72 km away · felt by 1
59. 2.515km WSW of Petrolia, CAMon, May 17, 2:39 AM PDT · 1966 days ago · 20 km deep · 74 km away
60. 2.412km W of Petrolia, CAMon, May 17, 8:58 AM PDT · 1966 days ago · 15 km deep · 71 km away

The first 60 of 83.

Before

1. 2.115km NW of Petrolia, CAFri, Apr 9, 3:10 AM PDT · 2004 days ago · 19 km deep · 72 km away
2. 1.512km N of Brooktrails, CAThu, Apr 8, 7:42 PM PDT · 2004 days ago · 8 km deep · 86 km away
3. 2.925km W of Petrolia, CAThu, Apr 8, 7:07 PM PDT · 2004 days ago · 13 km deep · 84 km away
4. 2.514km SE of Petrolia, CAThu, Apr 8, 5:39 PM PDT · 2004 days ago · 12 km deep · 50 km away
5. 2.518km WNW of Petrolia, CAThu, Apr 8, 2:40 PM PDT · 2005 days ago · 28 km deep · 76 km away
6. 3.027km W of Petrolia, CAMon, Apr 5, 1:27 PM PDT · 2008 days ago · 19 km deep · 87 km away · felt by 3
7. 2.421km W of Petrolia, CAMon, Apr 5, 4:42 AM PDT · 2008 days ago · 20 km deep · 80 km away · felt by 1
8. 2.227km WSW of Rancho Tehama Reserve, CASun, Apr 4, 7:10 PM PDT · 2008 days ago · 9 km deep · 84 km away
9. 1.827km SSE of Blue Lake, CASun, Apr 4, 1:06 PM PDT · 2009 days ago · 26 km deep · 45 km away
10. 2.019km NE of Redway, CASun, Apr 4, 4:22 AM PDT · 2009 days ago · 30 km deep · 11 km away
11. 2.219km W of Petrolia, CASun, Apr 4, 12:50 AM PDT · 2009 days ago · 19 km deep · 78 km away
12. 2.024km W of Petrolia, CAFri, Apr 2, 5:52 AM PDT · 2011 days ago · 20 km deep · 83 km away
13. 1.925km W of Petrolia, CAFri, Apr 2, 2:31 AM PDT · 2011 days ago · 18 km deep · 84 km away
14. 2.534km W of Petrolia, CAFri, Apr 2, 2:19 AM PDT · 2011 days ago · 15 km deep · 93 km away
15. 4.427km W of Petrolia, CAFri, Apr 2, 1:21 AM PDT · 2011 days ago · 19 km deep · 86 km away · felt by 46
16. 1.626km N of Laytonville, CAThu, Apr 1, 9:43 PM PDT · 2011 days ago · 7 km deep · 44 km away
17. 1.614km SW of Ferndale, CAThu, Apr 1, 4:43 PM PDT · 2011 days ago · 19 km deep · 70 km away
18. 2.827km WNW of Petrolia, CAThu, Apr 1, 8:22 AM PDT · 2012 days ago · 25 km deep · 84 km away
19. 2.124km ESE of Willow Creek, CAWed, Mar 31, 5:16 PM PDT · 2012 days ago · 28 km deep · 64 km away
20. 2.28km SSE of Ferndale, CAWed, Mar 31, 2:14 PM PDT · 2013 days ago · 25 km deep · 59 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73547155. Read Sun, Oct 4, 2026, 9:37 AM UTC.