California earthquakes

M1.8 earthquake 18km WNW of Ferndale, CA

A magnitude 1.8 earthquake struck 18km WNW of Ferndale, CA on Sun, May 2, 2021, 5:53 AM PDT (12:53 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.1 100km W of Petrolia, CA. This one was a foreshock.

Ferndale forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-05-02 12:53:57 UTC
Depth
9.7 km (6.0 mi), shallow
Epicenter
40.667° N, 124.445° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.7 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
256°, poorly surrounded by stations
Stations used
20

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 59 in the 60 days after this one and 32 in the 30 days before it.

After

  1. 2.811km NW of Eureka, CA · 1979 days ago · 24 km deep · 26 km away · felt by 66
  2. 2.31km N of Redway, CA · 1979 days ago · 26 km deep · 80 km away
  3. 2.835km WNW of Petrolia, CA · 1978 days ago · 23 km deep · 34 km away
  4. 2.531km WNW of Petrolia, CA · 1977 days ago · 22 km deep · 32 km away · felt by 1
  5. 1.714km WSW of Petrolia, CA · 1977 days ago · 13 km deep · 41 km away
  6. 1.813km W of Petrolia, CA · 1976 days ago · 19 km deep · 36 km away
  7. 2.219km SSE of Rio Dell, CA · 1975 days ago · 30 km deep · 51 km away
  8. 2.510km NNW of Petrolia, CA · 1975 days ago · 29 km deep · 30 km away · felt by 1
  9. 2.423km W of Petrolia, CA · 1973 days ago · 21 km deep · 43 km away
  10. 2.9104km W of Trinidad, CA · 1972 days ago · 24 km deep · 94 km away · felt by 1
  11. 2.713km NW of Petrolia, CA · 1971 days ago · 17 km deep · 31 km away · felt by 1
  12. 1.812km SE of Petrolia, CA · 1971 days ago · 11 km deep · 52 km away
  13. 2.110km SSW of Ferndale, CA · 1970 days ago · 18 km deep · 24 km away
  14. 2.849km W of Ferndale, CA · 1969 days ago · 24 km deep · 33 km away · felt by 3
  15. 2.71km NNE of Humboldt Hill, CA · 1968 days ago · 5 km deep · 23 km away · felt by 199
  16. 2.98km W of Redway, CA · 1966 days ago · 19 km deep · 75 km away · felt by 4
  17. 1.88km W of Redway, CA · 1966 days ago · 18 km deep · 75 km away
  18. 2.88km W of Redway, CA · 1966 days ago · 18 km deep · 75 km away · felt by 5
  19. 2.813km W of Petrolia, CA · 1966 days ago · 16 km deep · 40 km away · felt by 1
  20. 2.515km WSW of Petrolia, CA · 1966 days ago · 20 km deep · 42 km away
  21. 2.412km W of Petrolia, CA · 1965 days ago · 15 km deep · 40 km away
  22. 2.223km W of Petrolia, CA · 1965 days ago · 19 km deep · 42 km away
  23. 1.614km WSW of Petrolia, CA · 1965 days ago · 12 km deep · 42 km away
  24. 1.816km W of Petrolia, CA · 1964 days ago · 10 km deep · 41 km away
  25. 2.420km NW of Bayview, CA · 1962 days ago · 22 km deep · 26 km away
  26. 2.931km WNW of Petrolia, CA · 1960 days ago · 22 km deep · 34 km away
  27. 2.544km W of Ferndale, CA · 1959 days ago · 18 km deep · 29 km away
  28. 2.23km NW of Willow Creek, CA · 1959 days ago · 23 km deep · 74 km away
  29. 1.635km E of Hydesville, CA · 1956 days ago · 24 km deep · 67 km away
  30. 1.717km E of Petrolia, CA · 1956 days ago · 27 km deep · 50 km away
  31. 2.522km W of Petrolia, CA · 1953 days ago · 21 km deep · 41 km away · felt by 1
  32. 2.836km WNW of Petrolia, CA · 1950 days ago · 20 km deep · 36 km away
  33. 2.130km NE of Redway, CA · 1950 days ago · 23 km deep · 84 km away
  34. 2.815km WNW of Willow Creek, CA · 1948 days ago · 23 km deep · 64 km away
  35. 2.216km W of Petrolia, CA · 1947 days ago · 15 km deep · 41 km away
  36. 2.121km W of Petrolia, CA · 1946 days ago · 18 km deep · 43 km away
  37. 2.112km WNW of Petrolia, CA · 1946 days ago · 17 km deep · 33 km away
  38. 2.132km W of Hayfork, CA · 1944 days ago · 6 km deep · 76 km away
  39. 1.822km NW of Petrolia, CA · 1944 days ago · 20 km deep · 25 km away
  40. 2.513km N of Petrolia, CA · 1942 days ago · 28 km deep · 29 km away
  41. 1.623km W of Petrolia, CA · 1941 days ago · 15 km deep · 41 km away
  42. 1.84km NW of Petrolia, CA · 1939 days ago · 29 km deep · 37 km away
  43. 2.445km W of Ferndale, CA · 1938 days ago · 24 km deep · 33 km away
  44. 1.714km E of Rio Dell, CA · 1937 days ago · 20 km deep · 47 km away
  45. 1.614km E of Rio Dell, CA · 1937 days ago · 21 km deep · 47 km away
  46. 1.516km WNW of Petrolia, CA · 1937 days ago · 16 km deep · 32 km away
  47. 2.116km ESE of Willow Creek, CA · 1935 days ago · 21 km deep · 87 km away
  48. 2.417km NW of Petrolia, CA · 1935 days ago · 23 km deep · 28 km away
  49. 2.110km WSW of Petrolia, CA · 1933 days ago · 17 km deep · 43 km away
  50. 2.842km W of Petrolia, CA · 1932 days ago · 19 km deep · 44 km away
  51. 1.59km WSW of Petrolia, CA · 1930 days ago · 9 km deep · 41 km away
  52. 2.27km NE of Shelter Cove, CA · 1928 days ago · 21 km deep · 76 km away
  53. 2.966km W of Petrolia, CA · 1926 days ago · 8 km deep · 59 km away · felt by 3
  54. 2.220km SE of Willow Creek, CA · 1925 days ago · 23 km deep · 84 km away
  55. 1.88km ESE of Redway, CA · 1925 days ago · 22 km deep · 88 km away
  56. 2.436km NNE of Redway, CA · 1925 days ago · 29 km deep · 75 km away
  57. 3.1100km W of Petrolia, CA · 1924 days ago · 6 km deep · 89 km away
  58. 1.89km W of Willow Creek, CA · 1923 days ago · 12 km deep · 66 km away
  59. 2.311km SSW of Ferndale, CA · 1921 days ago · 19 km deep · 23 km away

Before

  1. 2.584km WNW of Ferndale, CA · 1981 days ago · 5 km deep · 66 km away · felt by 1
  2. 1.924km WNW of Petrolia, CA · 1983 days ago · 21 km deep · 30 km away
  3. 2.632km WNW of Ferndale, CA · 1984 days ago · 23 km deep · 14 km away · felt by 2
  4. 2.523km W of Petrolia, CA · 1985 days ago · 22 km deep · 42 km away
  5. 1.623km W of Petrolia, CA · 1987 days ago · 21 km deep · 42 km away
  6. 2.116km E of Petrolia, CA · 1988 days ago · 31 km deep · 46 km away
  7. 2.781km W of Petrolia, CA · 1989 days ago · 10 km deep · 73 km away · felt by 1
  8. 2.07km N of Ferndale, CA · 1989 days ago · 9 km deep · 15 km away
  9. 1.614km SW of Ferndale, CA · 1989 days ago · 20 km deep · 22 km away
  10. 2.510km WNW of Humboldt Hill, CA · 1991 days ago · 25 km deep · 15 km away
  11. 2.718km W of Petrolia, CA · 1992 days ago · 23 km deep · 40 km away · felt by 1
  12. 4.020km ENE of Redway, CA · 1993 days ago · 34 km deep · 89 km away · felt by 26
  13. 2.528km W of Petrolia, CA · 1994 days ago · 20 km deep · 42 km away
  14. 2.638km WNW of Petrolia, CA · 1994 days ago · 24 km deep · 33 km away
  15. 1.815km WSW of Petrolia, CA · 1996 days ago · 15 km deep · 41 km away
  16. 3.517km WNW of Petrolia, CA · 1997 days ago · 20 km deep · 29 km away · felt by 17
  17. 2.516km WSW of Petrolia, CA · 1998 days ago · 13 km deep · 43 km away
  18. 2.129km W of Petrolia, CA · 1999 days ago · 18 km deep · 43 km away
  19. 2.630km WNW of Petrolia, CA · 1999 days ago · 25 km deep · 33 km away
  20. 1.910km S of Petrolia, CA · 2001 days ago · 7 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73557200. Read Sun, Oct 4, 2026, 12:19 AM UTC.