California earthquakes

M2.5 earthquake 8 km NE of Gilroy, California

A magnitude 2.5 earthquake struck 8 km NE of Gilroy, California on Thu, Apr 4, 2002, 6:34 AM PST (14:34 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M4.9 5 km SSW of Gilroy, California. This one was a foreshock.

Gilroy 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
2.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2002-04-04 14:34:08 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
37.059° N, 121.496° 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, 0.2 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
66°
Stations used
85

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 91 in the 30 days before it.

After

  1. 1.73 km WSW of San Juan Bautista, California · 8949 days ago · 8 km deep · 26 km away
  2. 1.920 km NNE of King City, California · 8949 days ago · 1 km deep · 88 km away
  3. 1.52 km SE of Danville, California · 8948 days ago · 6 km deep · 94 km away
  4. 1.611 km SW of Brentwood, California · 8947 days ago · 18 km deep · 91 km away
  5. 2.48 km SSE of San Juan Bautista, California · 8945 days ago · 8 km deep · 31 km away
  6. 1.510 km S of Tres Pinos, California · 8945 days ago · 3 km deep · 43 km away
  7. 1.72 km W of Gilroy, California · 8944 days ago · 0 km deep · 10 km away
  8. 1.712 km ESE of East Foothills, California · 8943 days ago · 7 km deep · 34 km away
  9. 1.96 km NNE of Milpitas, California · 8943 days ago · 0 km deep · 57 km away
  10. 1.615 km E of Seven Trees, California · 8943 days ago · 2 km deep · 30 km away
  11. 2.012 km SSE of Tres Pinos, California · 8942 days ago · 5 km deep · 46 km away
  12. 1.812 km SSE of Tres Pinos, California · 8942 days ago · 5 km deep · 46 km away
  13. 2.09 km SW of Ridgemark, California · 8941 days ago · 6 km deep · 35 km away
  14. 2.19 km SW of Ridgemark, California · 8941 days ago · 6 km deep · 35 km away
  15. 1.623 km ENE of Soledad, California · 8941 days ago · 5 km deep · 71 km away
  16. 2.515 km SSE of Tres Pinos, California · 8941 days ago · 6 km deep · 49 km away
  17. 2.215 km SSE of Tres Pinos, California · 8941 days ago · 7 km deep · 49 km away
  18. 1.613 km SSE of Tres Pinos, California · 8938 days ago · 5 km deep · 48 km away
  19. 2.516 km SSE of Tres Pinos, California · 8937 days ago · 6 km deep · 50 km away
  20. 1.713 km S of Tres Pinos, California · 8937 days ago · 4 km deep · 47 km away
  21. 2.316 km SSE of Tres Pinos, California · 8937 days ago · 6 km deep · 50 km away
  22. 2.116 km SSE of Tres Pinos, California · 8937 days ago · 6 km deep · 50 km away
  23. 1.616 km SSE of Tres Pinos, California · 8937 days ago · 6 km deep · 50 km away
  24. 1.624 km NNE of King City, California · 8937 days ago · 5 km deep · 86 km away
  25. 1.824 km NE of Soledad, California · 8936 days ago · 10 km deep · 64 km away
  26. 1.71 km S of Tres Pinos, California · 8936 days ago · 6 km deep · 35 km away
  27. 2.28 km SSW of Tres Pinos, California · 8936 days ago · 2 km deep · 40 km away
  28. 1.811 km S of Tres Pinos, California · 8936 days ago · 4 km deep · 44 km away
  29. 1.73 km ENE of Tres Pinos, California · 8936 days ago · 8 km deep · 34 km away
  30. 1.52 km SE of San Ramon, California · 8936 days ago · 8 km deep · 88 km away
  31. 3.08 km SE of San Juan Bautista, California · 8935 days ago · 5 km deep · 31 km away
  32. 1.96 km NNE of Milpitas, California · 8935 days ago · 0 km deep · 57 km away
  33. 2.413 km E of Soledad, California · 8934 days ago · 4 km deep · 75 km away
  34. 1.721 km NE of Soledad, California · 8934 days ago · 3 km deep · 63 km away
  35. 1.525 km ENE of Greenfield, California · 8934 days ago · -1 km deep · 81 km away
  36. 2.125 km NE of Greenfield, California · 8933 days ago · 2 km deep · 80 km away
  37. 1.622 km NE of Soledad, California · 8933 days ago · 3 km deep · 67 km away
  38. 2.115 km N of Morgan Hill, California · 8933 days ago · 2 km deep · 27 km away
  39. 2.18 km SSE of San Juan Bautista, California · 8932 days ago · 10 km deep · 32 km away
  40. 1.618 km NE of San Martin, California · 8932 days ago · 7 km deep · 17 km away
  41. 1.626 km SE of Tres Pinos, California · 8932 days ago · 8 km deep · 60 km away
  42. 1.68 km SSE of San Juan Bautista, California · 8932 days ago · 10 km deep · 32 km away
  43. 3.63 km SE of Aromas, California · 8931 days ago · 9 km deep · 23 km away · felt by 235
  44. 1.94 km ESE of Aromas, California · 8931 days ago · 8 km deep · 23 km away
  45. 2.321 km NE of Soledad, California · 8930 days ago · 2 km deep · 63 km away
  46. 2.04 km SSE of San Juan Bautista, California · 8930 days ago · 5 km deep · 28 km away
  47. 1.510 km ESE of East Foothills, California · 8930 days ago · 7 km deep · 37 km away
  48. 1.619 km NNE of King City, California · 8930 days ago · 0 km deep · 87 km away
  49. 1.92 km WSW of Hollister, California · 8930 days ago · 3 km deep · 24 km away
  50. 1.78 km ENE of San Martin, California · 8930 days ago · 7 km deep · 7 km away
  51. 1.75 km NNE of Milpitas, California · 8929 days ago · 0 km deep · 57 km away
  52. 2.728 km W of Three Rocks, California · 8928 days ago · 8 km deep · 92 km away
  53. 1.627 km W of Three Rocks, California · 8928 days ago · 7 km deep · 92 km away
  54. 1.821 km NE of Soledad, California · 8928 days ago · 7 km deep · 64 km away
  55. 1.97 km WSW of Gilroy, California · 8927 days ago · 5 km deep · 15 km away
  56. 1.821 km NE of Soledad, California · 8927 days ago · 6 km deep · 61 km away
  57. 1.624 km NE of Greenfield, California · 8926 days ago · 5 km deep · 77 km away
  58. 1.617 km SSE of Tres Pinos, California · 8926 days ago · 6 km deep · 51 km away
  59. 2.516 km SSE of Tres Pinos, California · 8926 days ago · 5 km deep · 50 km away
  60. 2.016 km SSE of Tres Pinos, California · 8926 days ago · 4 km deep · 50 km away

The first 60 of 168.

Before

  1. 1.9Central California · 8950 days ago · 5 km deep · 10 km away
  2. 2.229 km WNW of Three Rocks, California · 8951 days ago · 13 km deep · 89 km away
  3. 1.626 km ENE of Greenfield, California · 8952 days ago · -1 km deep · 81 km away
  4. 1.90 km ENE of Millbrae, California · 8953 days ago · 12 km deep · 99 km away
  5. 2.222 km NNE of Soledad, California · 8953 days ago · 6 km deep · 59 km away
  6. 1.925 km NE of Greenfield, California · 8954 days ago · 2 km deep · 80 km away
  7. 1.94 km ENE of Big Sur, California · 8955 days ago · 16 km deep · 89 km away
  8. 2.12 km ESE of Danville, California · 8955 days ago · 7 km deep · 94 km away
  9. 2.024 km NE of Greenfield, California · 8956 days ago · 6 km deep · 76 km away
  10. 2.023 km NE of King City, California · 8956 days ago · 8 km deep · 90 km away
  11. 1.62 km SSW of San Juan Bautista, California · 8957 days ago · 6 km deep · 26 km away
  12. 1.55 km SSW of Gilroy, California · 8957 days ago · 4 km deep · 14 km away
  13. 1.62 km ESE of Danville, California · 8957 days ago · 6 km deep · 94 km away
  14. 1.72 km ESE of Danville, California · 8957 days ago · 6 km deep · 94 km away
  15. 1.82 km SE of Danville, California · 8957 days ago · 7 km deep · 94 km away
  16. 2.22 km SSW of San Juan Bautista, California · 8957 days ago · 6 km deep · 26 km away
  17. 1.62 km ESE of Danville, California · 8957 days ago · 6 km deep · 94 km away
  18. 3.01 km ESE of Danville, California · 8957 days ago · 8 km deep · 94 km away
  19. 1.62 km ESE of Danville, California · 8957 days ago · 6 km deep · 94 km away
  20. 1.88 km NE of San Martin, California · 8957 days ago · 8 km deep · 8 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc21220004. Read Mon, Oct 5, 2026, 9:44 AM UTC.