California earthquakes

M1.9 earthquake 6km W of Cobb, CA

A magnitude 1.9 earthquake struck 6km W of Cobb, CA on Fri, May 7, 2021, 11:03 AM PDT (18:03 UTC), 1 km (0 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-05-07 18:03:56 UTC
Depth
0.6 km (0.4 mi), shallow
Epicenter
38.822° N, 122.788° W
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.1 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
28°
Stations used
51

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 181 in the 60 days after this one and 116 in the 30 days before it.

After

  1. 1.64km W of Cobb, CA · 1975 days ago · 3 km deep · 2 km away
  2. 1.912km WNW of Redwood Valley, CA · 1975 days ago · 6 km deep · 71 km away
  3. 2.08km NW of The Geysers, CA · 1974 days ago · 2 km deep · 3 km away
  4. 1.610km NE of Navarro Head, CA · 1974 days ago · 4 km deep · 91 km away
  5. 1.76km NW of The Geysers, CA · 1974 days ago · 3 km deep · 1 km away
  6. 1.76km SW of Calistoga, CA · 1974 days ago · 8 km deep · 35 km away
  7. 1.86km NW of The Geysers, CA · 1974 days ago · 3 km deep · 1 km away
  8. 2.013km NE of Upper Lake, CA · 1973 days ago · -1 km deep · 46 km away
  9. 2.19km ESE of Willits, CA · 1973 days ago · 4 km deep · 74 km away · felt by 2
  10. 1.95km NE of Talmage, CA · 1973 days ago · 9 km deep · 48 km away
  11. 1.95km W of Glen Ellen, CA · 1973 days ago · 5 km deep · 53 km away
  12. 2.17km NW of The Geysers, CA · 1972 days ago · 2 km deep · 3 km away
  13. 1.75km WSW of Redwood Valley, CA · 1972 days ago · 2 km deep · 62 km away
  14. 1.615km SE of Laytonville, CA · 1972 days ago · 7 km deep · 99 km away
  15. 1.71km E of The Geysers, CA · 1972 days ago · 1 km deep · 6 km away
  16. 1.91km NNW of The Geysers, CA · 1972 days ago · 1 km deep · 5 km away
  17. 1.72km NE of The Geysers, CA · 1971 days ago · 2 km deep · 6 km away
  18. 1.79km NNW of Redwood Valley, CA · 1971 days ago · 6 km deep · 69 km away
  19. 1.96km NW of The Geysers, CA · 1970 days ago · 3 km deep · 1 km away
  20. 2.07km NW of The Geysers, CA · 1970 days ago · 2 km deep · 3 km away
  21. 1.87km NW of The Geysers, CA · 1969 days ago · 3 km deep · 3 km away
  22. 1.913km SE of Lake Pillsbury, CA · 1969 days ago · 7 km deep · 58 km away
  23. 1.58km SE of Middletown, CA · 1969 days ago · 5 km deep · 25 km away
  24. 3.02km ESE of The Geysers, CA · 1968 days ago · 3 km deep · 7 km away · felt by 13
  25. 1.82km ESE of The Geysers, CA · 1968 days ago · 0 km deep · 7 km away
  26. 1.58km NW of The Geysers, CA · 1968 days ago · 2 km deep · 3 km away
  27. 2.22km ENE of The Geysers, CA · 1968 days ago · 2 km deep · 6 km away
  28. 1.610km WNW of The Geysers, CA · 1968 days ago · 3 km deep · 6 km away
  29. 2.215km NNE of Angwin, CA · 1966 days ago · 8 km deep · 35 km away
  30. 2.015km NNE of Angwin, CA · 1966 days ago · 9 km deep · 35 km away
  31. 1.615km NNE of Angwin, CA · 1966 days ago · 9 km deep · 35 km away
  32. 1.714km NNE of Angwin, CA · 1966 days ago · 9 km deep · 35 km away
  33. 2.06km S of Calistoga, CA · 1966 days ago · 7 km deep · 38 km away · felt by 2
  34. 1.83km NE of The Geysers, CA · 1965 days ago · 2 km deep · 6 km away
  35. 1.76km NW of The Geysers, CA · 1965 days ago · 3 km deep · 1 km away
  36. 1.76km NW of The Geysers, CA · 1964 days ago · 2 km deep · 2 km away
  37. 1.717km SSE of Talmage, CA · 1964 days ago · 0 km deep · 35 km away
  38. 2.06km NW of The Geysers, CA · 1964 days ago · 2 km deep · 2 km away
  39. 1.514km E of Lower Lake, CA · 1964 days ago · 5 km deep · 31 km away
  40. 2.17km WNW of Cobb, CA · 1963 days ago · 2 km deep · 2 km away
  41. 1.78km SE of Talmage, CA · 1963 days ago · 4 km deep · 39 km away
  42. 1.513km ESE of Hidden Valley Lake, CA · 1963 days ago · 8 km deep · 33 km away
  43. 1.66km SE of St. Helena, CA · 1962 days ago · 10 km deep · 50 km away
  44. 1.911km WNW of The Geysers, CA · 1962 days ago · 2 km deep · 7 km away
  45. 1.84km NW of The Geysers, CA · 1961 days ago · 3 km deep · 2 km away
  46. 1.98km WNW of Cobb, CA · 1961 days ago · 3 km deep · 2 km away
  47. 1.65km NW of The Geysers, CA · 1961 days ago · 1 km deep · 2 km away
  48. 1.65km NW of The Geysers, CA · 1960 days ago · 1 km deep · 3 km away
  49. 2.610km NNW of Redwood Valley, CA · 1960 days ago · 5 km deep · 70 km away · felt by 7
  50. 1.76km NW of The Geysers, CA · 1960 days ago · 3 km deep · 1 km away
  51. 2.24km NW of The Geysers, CA · 1960 days ago · 3 km deep · 2 km away
  52. 1.518km NNW of Cloverdale, CA · 1959 days ago · 3 km deep · 31 km away
  53. 1.611km NNE of Boonville, CA · 1959 days ago · -1 km deep · 57 km away
  54. 2.02km NW of The Geysers, CA · 1959 days ago · 4 km deep · 3 km away
  55. 1.810km NNW of Redwood Valley, CA · 1958 days ago · 7 km deep · 70 km away
  56. 1.97km NW of The Geysers, CA · 1958 days ago · 3 km deep · 3 km away
  57. 2.17km ESE of Roseland, CA · 1958 days ago · 10 km deep · 49 km away · felt by 2
  58. 2.012km WNW of Redwood Valley, CA · 1958 days ago · 5 km deep · 71 km away
  59. 2.34km NNW of The Geysers, CA · 1958 days ago · 2 km deep · 2 km away · felt by 1
  60. 2.94km SSE of Redwood Valley, CA · 1957 days ago · 5 km deep · 57 km away · felt by 232

The first 60 of 181.

Before

  1. 1.96km NW of The Geysers, CA · 1976 days ago · 2 km deep · 3 km away
  2. 2.47km WNW of Willows, CA · 1976 days ago · 28 km deep · 91 km away · felt by 3
  3. 1.713km NW of The Geysers, CA · 1976 days ago · 3 km deep · 8 km away
  4. 2.57km WNW of Cobb, CA · 1976 days ago · 2 km deep · 2 km away · felt by 2
  5. 1.79km SE of Talmage, CA · 1977 days ago · 6 km deep · 39 km away
  6. 1.66km NW of The Geysers, CA · 1977 days ago · 3 km deep · 1 km away
  7. 2.28km NW of The Geysers, CA · 1977 days ago · 2 km deep · 3 km away
  8. 1.811km W of Lakeport, CA · 1977 days ago · 7 km deep · 32 km away
  9. 1.98km NW of The Geysers, CA · 1977 days ago · 2 km deep · 3 km away
  10. 1.77km NW of The Geysers, CA · 1978 days ago · 2 km deep · 1 km away
  11. 2.89km ESE of Willits, CA · 1978 days ago · 4 km deep · 74 km away · felt by 42
  12. 1.97km WNW of Cobb, CA · 1978 days ago · 2 km deep · 2 km away
  13. 1.58km W of Cobb, CA · 1979 days ago · 2 km deep · 2 km away
  14. 2.04km WNW of The Geysers, CA · 1979 days ago · 0 km deep · 3 km away
  15. 2.38km WNW of Willows, CA · 1979 days ago · 28 km deep · 91 km away · felt by 3
  16. 1.78km W of Cobb, CA · 1980 days ago · 2 km deep · 2 km away
  17. 1.93km SW of Anderson Springs, CA · 1980 days ago · 2 km deep · 10 km away
  18. 1.62km NE of The Geysers, CA · 1980 days ago · 1 km deep · 6 km away
  19. 1.86km WNW of Cobb, CA · 1980 days ago · 2 km deep · 1 km away · felt by 1
  20. 2.17km NW of The Geysers, CA · 1980 days ago · 2 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73559535. Read Sun, Oct 4, 2026, 9:10 AM UTC.