California earthquakes

M1.6 earthquake 4km W of Cobb, CA

A magnitude 1.6 earthquake struck 4km W of Cobb, CA on Sat, May 8, 2021, 4:10 AM PDT (11:10 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.0 7km WNW of The Geysers, CA. This one was a foreshock.

Cobb 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
1.6 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-05-08 11:10:03 UTC
Depth
2.5 km (1.6 mi), shallow
Epicenter
38.824° N, 122.764° 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 0.2 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
60°
Stations used
45

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 183 in the 60 days after this one and 117 in the 30 days before it.

After

  1. 1.912km WNW of Redwood Valley, CA · 1975 days ago · 6 km deep · 72 km away
  2. 2.08km NW of The Geysers, CA · 1974 days ago · 2 km deep · 5 km away
  3. 1.610km NE of Navarro Head, CA · 1974 days ago · 4 km deep · 93 km away
  4. 1.76km NW of The Geysers, CA · 1974 days ago · 3 km deep · 3 km away
  5. 1.76km SW of Calistoga, CA · 1974 days ago · 8 km deep · 34 km away
  6. 1.86km NW of The Geysers, CA · 1973 days ago · 3 km deep · 3 km away
  7. 2.013km NE of Upper Lake, CA · 1973 days ago · -1 km deep · 46 km away
  8. 2.19km ESE of Willits, CA · 1973 days ago · 4 km deep · 75 km away · felt by 2
  9. 1.95km NE of Talmage, CA · 1973 days ago · 9 km deep · 49 km away
  10. 1.95km W of Glen Ellen, CA · 1973 days ago · 5 km deep · 53 km away
  11. 2.17km NW of The Geysers, CA · 1972 days ago · 2 km deep · 5 km away
  12. 1.75km WSW of Redwood Valley, CA · 1972 days ago · 2 km deep · 63 km away
  13. 1.615km SE of Laytonville, CA · 1972 days ago · 7 km deep · 100 km away
  14. 1.71km E of The Geysers, CA · 1972 days ago · 1 km deep · 6 km away
  15. 1.91km NNW of The Geysers, CA · 1972 days ago · 1 km deep · 4 km away
  16. 1.72km NE of The Geysers, CA · 1971 days ago · 2 km deep · 5 km away
  17. 1.79km NNW of Redwood Valley, CA · 1971 days ago · 6 km deep · 70 km away
  18. 1.96km NW of The Geysers, CA · 1970 days ago · 3 km deep · 3 km away
  19. 2.07km NW of The Geysers, CA · 1970 days ago · 2 km deep · 5 km away
  20. 1.87km NW of The Geysers, CA · 1969 days ago · 3 km deep · 5 km away
  21. 1.913km SE of Lake Pillsbury, CA · 1969 days ago · 7 km deep · 58 km away
  22. 1.58km SE of Middletown, CA · 1969 days ago · 5 km deep · 23 km away
  23. 3.02km ESE of The Geysers, CA · 1968 days ago · 3 km deep · 6 km away · felt by 13
  24. 1.82km ESE of The Geysers, CA · 1968 days ago · 0 km deep · 6 km away
  25. 1.58km NW of The Geysers, CA · 1968 days ago · 2 km deep · 5 km away
  26. 2.22km ENE of The Geysers, CA · 1968 days ago · 2 km deep · 5 km away
  27. 1.610km WNW of The Geysers, CA · 1968 days ago · 3 km deep · 8 km away
  28. 2.215km NNE of Angwin, CA · 1966 days ago · 8 km deep · 33 km away
  29. 2.015km NNE of Angwin, CA · 1966 days ago · 9 km deep · 33 km away
  30. 1.615km NNE of Angwin, CA · 1966 days ago · 9 km deep · 33 km away
  31. 1.714km NNE of Angwin, CA · 1966 days ago · 9 km deep · 34 km away
  32. 2.06km S of Calistoga, CA · 1965 days ago · 7 km deep · 37 km away · felt by 2
  33. 1.83km NE of The Geysers, CA · 1965 days ago · 2 km deep · 4 km away
  34. 1.76km NW of The Geysers, CA · 1965 days ago · 3 km deep · 3 km away
  35. 1.76km NW of The Geysers, CA · 1964 days ago · 2 km deep · 4 km away
  36. 1.717km SSE of Talmage, CA · 1964 days ago · 0 km deep · 36 km away
  37. 2.06km NW of The Geysers, CA · 1964 days ago · 2 km deep · 4 km away
  38. 1.514km E of Lower Lake, CA · 1964 days ago · 5 km deep · 29 km away
  39. 2.17km WNW of Cobb, CA · 1963 days ago · 2 km deep · 4 km away
  40. 1.78km SE of Talmage, CA · 1963 days ago · 4 km deep · 41 km away
  41. 1.513km ESE of Hidden Valley Lake, CA · 1963 days ago · 8 km deep · 31 km away
  42. 1.66km SE of St. Helena, CA · 1962 days ago · 10 km deep · 49 km away
  43. 1.911km WNW of The Geysers, CA · 1962 days ago · 2 km deep · 9 km away
  44. 1.84km NW of The Geysers, CA · 1961 days ago · 3 km deep · 3 km away
  45. 1.98km WNW of Cobb, CA · 1961 days ago · 3 km deep · 4 km away
  46. 1.65km NW of The Geysers, CA · 1961 days ago · 1 km deep · 4 km away
  47. 1.65km NW of The Geysers, CA · 1960 days ago · 1 km deep · 4 km away
  48. 2.610km NNW of Redwood Valley, CA · 1960 days ago · 5 km deep · 71 km away · felt by 7
  49. 1.76km NW of The Geysers, CA · 1960 days ago · 3 km deep · 3 km away
  50. 2.24km NW of The Geysers, CA · 1960 days ago · 3 km deep · 3 km away
  51. 1.518km NNW of Cloverdale, CA · 1959 days ago · 3 km deep · 33 km away
  52. 1.611km NNE of Boonville, CA · 1959 days ago · -1 km deep · 58 km away
  53. 2.02km NW of The Geysers, CA · 1959 days ago · 4 km deep · 4 km away
  54. 1.810km NNW of Redwood Valley, CA · 1958 days ago · 7 km deep · 71 km away
  55. 1.97km NW of The Geysers, CA · 1958 days ago · 3 km deep · 5 km away
  56. 2.17km ESE of Roseland, CA · 1958 days ago · 10 km deep · 49 km away · felt by 2
  57. 2.012km WNW of Redwood Valley, CA · 1958 days ago · 5 km deep · 72 km away
  58. 2.34km NNW of The Geysers, CA · 1958 days ago · 2 km deep · 3 km away · felt by 1
  59. 2.94km SSE of Redwood Valley, CA · 1957 days ago · 5 km deep · 58 km away · felt by 232
  60. 1.69km WNW of The Geysers, CA · 1957 days ago · 3 km deep · 7 km away

The first 60 of 183.

Before

  1. 1.96km W of Cobb, CA · 1976 days ago · 1 km deep · 2 km away · felt by 1
  2. 1.96km NW of The Geysers, CA · 1976 days ago · 2 km deep · 5 km away
  3. 2.47km WNW of Willows, CA · 1976 days ago · 28 km deep · 90 km away · felt by 3
  4. 1.713km NW of The Geysers, CA · 1976 days ago · 3 km deep · 10 km away
  5. 2.57km WNW of Cobb, CA · 1976 days ago · 2 km deep · 4 km away · felt by 2
  6. 1.79km SE of Talmage, CA · 1977 days ago · 6 km deep · 40 km away
  7. 1.66km NW of The Geysers, CA · 1977 days ago · 3 km deep · 3 km away
  8. 2.28km NW of The Geysers, CA · 1977 days ago · 2 km deep · 5 km away
  9. 1.811km W of Lakeport, CA · 1977 days ago · 7 km deep · 33 km away
  10. 1.98km NW of The Geysers, CA · 1977 days ago · 2 km deep · 5 km away
  11. 1.77km NW of The Geysers, CA · 1978 days ago · 2 km deep · 3 km away
  12. 2.89km ESE of Willits, CA · 1978 days ago · 4 km deep · 75 km away · felt by 42
  13. 1.97km WNW of Cobb, CA · 1978 days ago · 2 km deep · 3 km away
  14. 1.58km W of Cobb, CA · 1979 days ago · 2 km deep · 4 km away
  15. 2.04km WNW of The Geysers, CA · 1979 days ago · 0 km deep · 4 km away
  16. 2.38km WNW of Willows, CA · 1979 days ago · 28 km deep · 90 km away · felt by 3
  17. 1.78km W of Cobb, CA · 1980 days ago · 2 km deep · 4 km away
  18. 1.93km SW of Anderson Springs, CA · 1980 days ago · 2 km deep · 9 km away
  19. 1.62km NE of The Geysers, CA · 1980 days ago · 1 km deep · 5 km away
  20. 1.86km WNW of Cobb, CA · 1980 days ago · 2 km deep · 3 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73559860. Read Sun, Oct 4, 2026, 8:42 AM UTC.