California earthquakes

M1.9 earthquake 3 km SSW of Livermore, California

A magnitude 1.9 earthquake struck 3 km SSW of Livermore, California on Wed, Apr 2, 1975, 12:45 PM PDT (19:45 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M4.3 7 km SSE of Gustine, California. This one was a foreshock.

Livermore 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), micro
Local time
UTC
1975-04-02 19:45:44 UTC
Depth
8.9 km (5.5 mi), shallow
Epicenter
37.657° N, 121.783° 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 0.3 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
124°
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 143 in the 60 days after this one and 89 in the 30 days before it.

After

  1. 2.311 km ESE of Gilroy, California · 18809 days ago · 3 km deep · 82 km away
  2. 1.75 km SSW of Gilroy, California · 18808 days ago · 3 km deep · 79 km away
  3. 2.09 km ESE of East Foothills, California · 18807 days ago · 5 km deep · 34 km away
  4. 1.911 km NE of Milpitas, California · 18807 days ago · 0 km deep · 17 km away
  5. 2.78 km NE of San Juan Bautista, California · 18807 days ago · 5 km deep · 88 km away
  6. 2.06 km E of Fremont, California · 18806 days ago · 7 km deep · 18 km away
  7. 2.78 km ENE of San Martin, California · 18805 days ago · 8 km deep · 65 km away
  8. 2.35 km SSW of Gilroy, California · 18805 days ago · 3 km deep · 79 km away
  9. 3.49 km NE of San Juan Bautista, California · 18804 days ago · 5 km deep · 87 km away
  10. 1.6Northern California · 18801 days ago · 4 km deep · 60 km away
  11. 3.78 km ENE of San Martin, California · 18801 days ago · 8 km deep · 63 km away
  12. 2.4Northern California · 18801 days ago · 7 km deep · 64 km away
  13. 2.512 km NNE of Tres Pinos, California · 18801 days ago · 6 km deep · 96 km away
  14. 3.45 km SW of Gilroy, California · 18799 days ago · 4 km deep · 78 km away
  15. 2.58 km NW of Hollister, California · 18799 days ago · 6 km deep · 88 km away
  16. 2.95 km SW of Gilroy, California · 18799 days ago · 2 km deep · 77 km away
  17. 3.0Central California · 18799 days ago · 5 km deep · 77 km away
  18. 3.05 km SW of Gilroy, California · 18799 days ago · 4 km deep · 77 km away
  19. 3.18 km NW of Hollister, California · 18798 days ago · 4 km deep · 87 km away
  20. 1.715 km E of Seven Trees, California · 18798 days ago · 5 km deep · 44 km away
  21. 2.55 km SW of Gilroy, California · 18798 days ago · 4 km deep · 77 km away
  22. 2.39 km NNW of Hollister, California · 18798 days ago · 5 km deep · 86 km away
  23. 2.68 km NW of Hollister, California · 18797 days ago · 6 km deep · 87 km away
  24. 2.610 km NNW of Hollister, California · 18796 days ago · 5 km deep · 85 km away
  25. 1.617 km NE of East Foothills, California · 18796 days ago · 8 km deep · 20 km away
  26. 3.38 km ENE of San Martin, California · 18796 days ago · 7 km deep · 63 km away
  27. 2.69 km NW of Hollister, California · 18796 days ago · 4 km deep · 87 km away
  28. 1.89 km SSE of Half Moon Bay, California · 18795 days ago · 7 km deep · 62 km away
  29. 2.47 km ENE of Morgan Hill, California · 18795 days ago · 4 km deep · 58 km away
  30. 1.97 km ENE of Morgan Hill, California · 18794 days ago · 4 km deep · 58 km away
  31. 1.78 km ENE of San Martin, California · 18794 days ago · 7 km deep · 65 km away
  32. 3.32 km N of Kensington, California · 18794 days ago · 9 km deep · 54 km away
  33. 2.812 km NNW of Hollister, California · 18793 days ago · 7 km deep · 83 km away
  34. 2.68 km NE of San Juan Bautista, California · 18793 days ago · 5 km deep · 88 km away
  35. 2.010 km NW of Hollister, California · 18793 days ago · 4 km deep · 86 km away
  36. 2.59 km NW of Hollister, California · 18793 days ago · 0 km deep · 87 km away
  37. 2.410 km NNW of Hollister, California · 18793 days ago · 5 km deep · 85 km away
  38. 2.915 km E of Seven Trees, California · 18792 days ago · 6 km deep · 43 km away
  39. 2.55 km S of Gilroy, California · 18792 days ago · 6 km deep · 80 km away
  40. 2.414 km SW of Gustine, California · 18792 days ago · 2 km deep · 80 km away
  41. 1.99 km NE of San Juan Bautista, California · 18791 days ago · 2 km deep · 86 km away
  42. 1.810 km NW of Hollister, California · 18791 days ago · 2 km deep · 86 km away
  43. 2.58 km ENE of San Martin, California · 18790 days ago · 7 km deep · 63 km away
  44. 2.62 km SSW of Hollister, California · 18789 days ago · 8 km deep · 97 km away
  45. 2.810 km N of East Foothills, California · 18789 days ago · 4 km deep · 21 km away
  46. 2.75 km SSW of Gilroy, California · 18788 days ago · 2 km deep · 79 km away
  47. 2.3Northern California · 18787 days ago · 2 km deep · 93 km away
  48. 1.810 km ESE of Seven Trees, California · 18787 days ago · 5 km deep · 44 km away
  49. 2.19 km ESE of Lexington Hills, California · 18785 days ago · 10 km deep · 60 km away
  50. 1.912 km ESE of East Foothills, CA · 18785 days ago · 4 km deep · 36 km away
  51. 2.715 km N of Morgan Hill, California · 18784 days ago · 6 km deep · 45 km away
  52. 1.5Northern California · 18784 days ago · 2 km deep · 9 km away
  53. 2.38 km NW of Hollister, California · 18784 days ago · 6 km deep · 87 km away
  54. 2.95 km SW of Gilroy, California · 18784 days ago · 2 km deep · 77 km away
  55. 2.05 km SW of Gilroy, California · 18784 days ago · 1 km deep · 77 km away
  56. 2.55 km SW of Gilroy, California · 18784 days ago · 1 km deep · 77 km away
  57. 2.110 km ENE of Milpitas, California · 18782 days ago · 6 km deep · 19 km away
  58. 2.19 km NNW of Hollister, California · 18781 days ago · 3 km deep · 86 km away
  59. 2.88 km NE of San Juan Bautista, California · 18781 days ago · 7 km deep · 88 km away
  60. 1.99 km NW of Hollister, California · 18781 days ago · 3 km deep · 86 km away

The first 60 of 143.

Before

  1. 3.29 km NW of Hollister, California · 18810 days ago · 3 km deep · 86 km away
  2. 1.86 km E of Fremont, California · 18810 days ago · 5 km deep · 18 km away
  3. 2.19 km NW of Hollister, California · 18810 days ago · 5 km deep · 87 km away
  4. 2.48 km NE of San Juan Bautista, California · 18811 days ago · 5 km deep · 88 km away
  5. 2.85 km S of Gilroy, California · 18811 days ago · 6 km deep · 80 km away
  6. 2.85 km SW of Gilroy, California · 18811 days ago · 0 km deep · 77 km away
  7. 3.05 km NNE of Hollister, California · 18812 days ago · 7 km deep · 92 km away
  8. 2.29 km NE of San Juan Bautista, California · 18812 days ago · 5 km deep · 87 km away
  9. 3.011 km ESE of Gilroy, California · 18812 days ago · 3 km deep · 82 km away
  10. 2.07 km W of Gilroy, California · 18812 days ago · 4 km deep · 74 km away
  11. 1.76 km NNE of San Martin, California · 18813 days ago · 3 km deep · 60 km away
  12. 2.25 km WSW of Hollister, California · 18813 days ago · 9 km deep · 95 km away
  13. 3.45 km WSW of Hollister, California · 18813 days ago · 9 km deep · 95 km away
  14. 1.95 km WSW of Hollister, California · 18813 days ago · 10 km deep · 95 km away
  15. 2.08 km NW of Hollister, California · 18813 days ago · 5 km deep · 88 km away
  16. 2.15 km NE of Interlaken, California · 18813 days ago · 10 km deep · 75 km away
  17. 2.71 km SW of San Juan Bautista, California · 18814 days ago · 6 km deep · 94 km away
  18. 1.79 km NW of Hollister, California · 18814 days ago · 5 km deep · 87 km away
  19. 2.811 km NE of Milpitas, California · 18815 days ago · 0 km deep · 17 km away
  20. 2.21 km WSW of Campbell, California · 18815 days ago · 10 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1023402. Read Wed, Sep 30, 2026, 1:46 PM UTC.