California earthquakes

M1.9 earthquake 9km E of Alum Rock, CA

A magnitude 1.9 earthquake struck 9km E of Alum Rock, CA on Thu, Jun 10, 2021, 9:08 PM PDT (04:08 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.9 3km N of San Lorenzo, CA. This one was a foreshock.

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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
2021-06-11 04:08:56 UTC
Depth
6.5 km (4.0 mi), shallow
Epicenter
37.374° N, 121.730° 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 0.1 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
32°
Stations used
65

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 104 in the 60 days after this one and 50 in the 30 days before it.

After

  1. 3.34km NNW of Aromas, CA · 1941 days ago · 7 km deep · 50 km away · felt by 489
  2. 2.34km NNW of Aromas, CA · 1941 days ago · 7 km deep · 50 km away · felt by 12
  3. 2.112km NW of Pinnacles, CA · 1941 days ago · 6 km deep · 95 km away
  4. 1.615km SW of Tres Pinos, CA · 1941 days ago · 3 km deep · 81 km away
  5. 2.26km NNE of Tres Pinos, CA · 1941 days ago · 6 km deep · 70 km away
  6. 1.77km SSW of Muir Beach, CA · 1940 days ago · 9 km deep · 90 km away
  7. 2.55km NE of Alum Rock, CA · 1937 days ago · 1 km deep · 5 km away · felt by 69
  8. 1.65km NE of Alum Rock, CA · 1937 days ago · 0 km deep · 5 km away
  9. 2.011km NW of Pinnacles, CA · 1937 days ago · 9 km deep · 97 km away
  10. 3.013km SSE of Tres Pinos, CA · 1937 days ago · 7 km deep · 87 km away · felt by 6
  11. 2.63km SW of San Juan Bautista, CA · 1936 days ago · 5 km deep · 63 km away · felt by 4
  12. 1.713km SSW of Tres Pinos, CA · 1936 days ago · 8 km deep · 83 km away
  13. 1.56km WSW of Daly City, CA · 1936 days ago · 9 km deep · 78 km away
  14. 1.626km SSW of Los Banos, CA · 1936 days ago · 9 km deep · 91 km away
  15. 1.620km SW of Gustine, CA · 1935 days ago · 1 km deep · 54 km away
  16. 1.912km NE of Milpitas, CA · 1935 days ago · 5 km deep · 15 km away
  17. 2.415km E of Seven Trees, CA · 1934 days ago · 8 km deep · 9 km away · felt by 1
  18. 2.62km ENE of Hayward, CA · 1934 days ago · 7 km deep · 42 km away · felt by 139
  19. 1.86km E of Fremont, CA · 1933 days ago · 9 km deep · 24 km away
  20. 2.115km N of Morgan Hill, CA · 1932 days ago · 1 km deep · 14 km away
  21. 2.111km NNW of Hollister, CA · 1932 days ago · 7 km deep · 55 km away
  22. 1.814km NW of Pinnacles, CA · 1931 days ago · 4 km deep · 93 km away
  23. 1.82km ESE of Berkeley, CA · 1931 days ago · 9 km deep · 71 km away
  24. 2.820km SE of Livermore, CA · 1930 days ago · 1 km deep · 26 km away · felt by 23
  25. 2.520km SE of Livermore, CA · 1929 days ago · 1 km deep · 26 km away · felt by 8
  26. 2.03km NE of Portola Valley, CA · 1929 days ago · 4 km deep · 43 km away · felt by 2
  27. 1.712km NE of Hollister, CA · 1928 days ago · 7 km deep · 61 km away
  28. 2.110km S of Tres Pinos, CA · 1927 days ago · 4 km deep · 82 km away
  29. 1.714km N of Morgan Hill, CA · 1926 days ago · 5 km deep · 16 km away
  30. 2.114km N of Morgan Hill, CA · 1926 days ago · 5 km deep · 15 km away
  31. 1.816km N of Morgan Hill, CA · 1925 days ago · 5 km deep · 13 km away
  32. 1.715km E of Seven Trees, CA · 1925 days ago · 2 km deep · 10 km away
  33. 3.93km N of San Lorenzo, CA · 1924 days ago · 9 km deep · 51 km away · felt by 12,071 · tsunami flag
  34. 2.49km NE of San Martin, CA · 1923 days ago · 5 km deep · 33 km away · felt by 1
  35. 2.76km SSW of San Ramon, CA · 1922 days ago · 8 km deep · 46 km away · felt by 117
  36. 1.710km N of Pinnacles, CA · 1922 days ago · 8 km deep · 98 km away
  37. 1.91km NNW of Crockett, CA · 1922 days ago · 8 km deep · 88 km away · felt by 2
  38. 2.67km NNW of Pinnacles, CA · 1922 days ago · 3 km deep · 100 km away · felt by 1
  39. 2.28km NNW of Pinnacles, CA · 1922 days ago · 7 km deep · 100 km away
  40. 2.87km NNW of Pinnacles, CA · 1922 days ago · 3 km deep · 100 km away · felt by 7
  41. 1.98km NNW of Pinnacles, CA · 1922 days ago · 3 km deep · 100 km away
  42. 1.58km ENE of Gilroy, CA · 1921 days ago · 8 km deep · 43 km away
  43. 1.79km N of Boulder Creek, CA · 1921 days ago · 12 km deep · 39 km away
  44. 1.73km WNW of Castro Valley, CA · 1920 days ago · 8 km deep · 50 km away
  45. 2.09km NE of Milpitas, CA · 1919 days ago · 8 km deep · 15 km away · felt by 3
  46. 2.03km SSW of San Juan Bautista, CA · 1919 days ago · 6 km deep · 64 km away · felt by 1
  47. 3.72km WSW of Los Banos, CA · 1919 days ago · 6 km deep · 84 km away · felt by 143
  48. 1.68km NE of Ridgemark, CA · 1918 days ago · 6 km deep · 68 km away
  49. 1.93km SSW of San Juan Bautista, CA · 1917 days ago · 5 km deep · 64 km away
  50. 2.510km NW of Pinnacles, CA · 1917 days ago · 5 km deep · 97 km away · felt by 4
  51. 1.719km SE of Livermore, CA · 1916 days ago · 2 km deep · 26 km away
  52. 1.610km NNW of Pinnacles, CA · 1916 days ago · 2 km deep · 98 km away
  53. 1.812km SSW of Tres Pinos, CA · 1915 days ago · 11 km deep · 82 km away
  54. 2.12km ENE of Berkeley, CA · 1911 days ago · 9 km deep · 72 km away · felt by 11
  55. 1.79km NNE of Alum Rock, CA · 1911 days ago · 9 km deep · 7 km away
  56. 1.88km SW of Loyola, CA · 1911 days ago · 6 km deep · 39 km away
  57. 2.74km NNW of Hollister, CA · 1911 days ago · 9 km deep · 61 km away · felt by 20
  58. 1.87km S of Tres Pinos, CA · 1911 days ago · 15 km deep · 81 km away
  59. 2.24km NNW of Hollister, CA · 1910 days ago · 9 km deep · 61 km away
  60. 1.616km SSE of Tres Pinos, CA · 1910 days ago · 6 km deep · 90 km away

The first 60 of 104.

Before

  1. 1.75km S of San Juan Bautista, CA · 1942 days ago · 5 km deep · 66 km away
  2. 1.61km W of Alamo, CA · 1943 days ago · 9 km deep · 60 km away
  3. 1.73km N of Piedmont, CA · 1943 days ago · 6 km deep · 69 km away
  4. 2.412km NNE of Pinnacles, CA · 1944 days ago · 14 km deep · 98 km away
  5. 1.814km S of Tres Pinos, CA · 1944 days ago · 8 km deep · 87 km away
  6. 2.56km SW of Gilroy, CA · 1944 days ago · 6 km deep · 46 km away · felt by 38
  7. 1.611km WSW of Saratoga, CA · 1947 days ago · 8 km deep · 39 km away
  8. 2.49km SE of Livermore, CA · 1947 days ago · 7 km deep · 28 km away
  9. 2.19km E of Alum Rock, CA · 1949 days ago · 6 km deep · 0 km away · felt by 31
  10. 1.79km E of Alum Rock, CA · 1949 days ago · 6 km deep · 0 km away
  11. 3.69km E of Alum Rock, CA · 1949 days ago · 7 km deep · 0 km away · felt by 1,401
  12. 1.69km SSW of Tres Pinos, CA · 1949 days ago · 3 km deep · 80 km away
  13. 1.67km SW of Los Altos Hills, CA · 1951 days ago · 9 km deep · 41 km away
  14. 2.42km ENE of Pacheco, CA · 1951 days ago · 15 km deep · 74 km away
  15. 2.013km S of Tres Pinos, CA · 1952 days ago · 5 km deep · 86 km away
  16. 1.814km S of Tres Pinos, CA · 1952 days ago · 5 km deep · 88 km away
  17. 1.82km ENE of Oakland, CA · 1953 days ago · 10 km deep · 63 km away
  18. 2.19km NW of Pinnacles, CA · 1953 days ago · 7 km deep · 99 km away
  19. 2.24km WSW of Daly City, CA · 1953 days ago · 12 km deep · 76 km away · felt by 8
  20. 1.61km SW of Danville, CA · 1955 days ago · 10 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73572621. Read Sun, Oct 4, 2026, 4:05 PM UTC.