California earthquakes

M1.5 earthquake 9 km NE of Gilroy, California

A magnitude 1.5 earthquake struck 9 km NE of Gilroy, California on Fri, Dec 28, 1979, 7:52 PM PST (03:52 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M2.4 9 km ENE of Blackhawk, 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
1.5 (md), micro
Local time
UTC
1979-12-29 03:52:57 UTC
Depth
9.2 km (5.7 mi), shallow
Epicenter
37.070° N, 121.494° 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, 0.6 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
102°
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 187 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.49 km ENE of Blackhawk, California · 17039 days ago · 6 km deep · 91 km away
  2. 2.410 km NE of Blackhawk, CA · 17039 days ago · 3 km deep · 94 km away
  3. 2.15 km SSE of San Juan Bautista, California · 17039 days ago · 5 km deep · 30 km away
  4. 1.610 km ENE of Blackhawk, California · 17038 days ago · 5 km deep · 90 km away
  5. 3.5Northern California · 17038 days ago · 13 km deep · 83 km away
  6. 1.8Northern California · 17038 days ago · 8 km deep · 83 km away
  7. 1.69 km NE of San Martin, California · 17038 days ago · 9 km deep · 9 km away
  8. 2.0Northern California · 17038 days ago · 5 km deep · 90 km away
  9. 1.610 km E of Blackhawk, California · 17038 days ago · 9 km deep · 89 km away
  10. 2.211 km E of Blackhawk, California · 17038 days ago · 5 km deep · 89 km away
  11. 2.511 km ENE of Blackhawk, California · 17038 days ago · 4 km deep · 90 km away
  12. 2.411 km ENE of Blackhawk, California · 17038 days ago · 5 km deep · 90 km away
  13. 2.410 km ENE of Blackhawk, California · 17038 days ago · 4 km deep · 90 km away
  14. 2.19 km NE of Gilroy, California · 17038 days ago · 8 km deep · 1 km away
  15. 1.911 km SW of Brentwood, California · 17038 days ago · 5 km deep · 91 km away
  16. 2.410 km SW of Brentwood, California · 17038 days ago · 4 km deep · 91 km away
  17. 1.511 km ENE of Blackhawk, CA · 17038 days ago · 4 km deep · 90 km away
  18. 2.511 km ENE of Blackhawk, California · 17038 days ago · 5 km deep · 90 km away
  19. 3.110 km ESE of Livermore, California · 17038 days ago · 1 km deep · 67 km away
  20. 1.75 km NNW of East Foothills, California · 17038 days ago · 0 km deep · 50 km away
  21. 2.110 km ENE of Blackhawk, California · 17038 days ago · 5 km deep · 90 km away
  22. 1.510 km ENE of Livermore, California · 17038 days ago · 3 km deep · 72 km away
  23. 2.210 km ENE of Blackhawk, California · 17038 days ago · 6 km deep · 91 km away
  24. 2.210 km E of Blackhawk, California · 17038 days ago · 9 km deep · 89 km away
  25. 3.111 km WSW of Byron, California · 17038 days ago · 7 km deep · 89 km away
  26. 2.110 km SW of Brentwood, California · 17038 days ago · 6 km deep · 92 km away
  27. 2.210 km SW of Brentwood, California · 17038 days ago · 0 km deep · 91 km away
  28. 1.822 km NE of Soledad, California · 17038 days ago · 4 km deep · 60 km away
  29. 2.312 km SW of Byron, California · 17037 days ago · 14 km deep · 84 km away
  30. 1.82 km WSW of San Juan Bautista, California · 17037 days ago · 8 km deep · 27 km away
  31. 2.610 km SSW of Brentwood, California · 17037 days ago · 19 km deep · 90 km away
  32. 1.511 km E of Blackhawk, California · 17037 days ago · 11 km deep · 86 km away
  33. 2.110 km E of Blackhawk, California · 17037 days ago · 13 km deep · 87 km away
  34. 1.622 km NE of Soledad, California · 17037 days ago · 3 km deep · 63 km away
  35. 1.621 km NE of Soledad, California · 17037 days ago · 1 km deep · 60 km away
  36. 1.610 km NE of Blackhawk, California · 17037 days ago · 5 km deep · 94 km away
  37. 1.511 km ENE of Blackhawk, California · 17037 days ago · 7 km deep · 91 km away
  38. 1.711 km E of Blackhawk, California · 17037 days ago · 15 km deep · 88 km away
  39. 2.210 km ENE of Blackhawk, California · 17037 days ago · 6 km deep · 92 km away
  40. 1.612 km ESE of Livermore, California · 17037 days ago · 7 km deep · 65 km away
  41. 1.97 km SW of Tracy, California · 17037 days ago · 4 km deep · 69 km away
  42. 1.57 km W of Brentwood, California · 17037 days ago · 20 km deep · 98 km away
  43. 1.714 km E of Seven Trees, California · 17037 days ago · 2 km deep · 30 km away
  44. 1.514 km E of Seven Trees, California · 17037 days ago · 5 km deep · 31 km away
  45. 2.29 km ENE of Blackhawk, California · 17036 days ago · 12 km deep · 90 km away
  46. 1.69 km E of Blackhawk, California · 17036 days ago · 2 km deep · 86 km away
  47. 1.911 km E of Blackhawk, California · 17036 days ago · 5 km deep · 89 km away
  48. 1.89 km ENE of Blackhawk, California · 17036 days ago · 4 km deep · 90 km away
  49. 1.811 km ESE of Blackhawk, California · 17036 days ago · 13 km deep · 85 km away
  50. 2.612 km E of Blackhawk, California · 17036 days ago · 15 km deep · 86 km away
  51. 2.211 km SSW of Brentwood, California · 17036 days ago · 5 km deep · 89 km away
  52. 1.94 km NNE of Blackhawk, California · 17036 days ago · 4 km deep · 94 km away
  53. 2.23 km NNE of Blackhawk, California · 17036 days ago · 5 km deep · 94 km away
  54. 2.311 km ENE of Blackhawk, California · 17035 days ago · 5 km deep · 90 km away
  55. 2.510 km ENE of Blackhawk, California · 17035 days ago · 4 km deep · 91 km away
  56. 1.710 km E of Livermore, California · 17035 days ago · 2 km deep · 68 km away
  57. 1.59 km WSW of Brentwood, California · 17035 days ago · 18 km deep · 97 km away
  58. 2.611 km ENE of Blackhawk, California · 17035 days ago · 5 km deep · 90 km away
  59. 2.19 km NNE of Livermore, California · 17035 days ago · 12 km deep · 79 km away
  60. 2.612 km N of Livermore, California · 17035 days ago · 13 km deep · 84 km away

The first 60 of 187.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1049600. Read Tue, Sep 22, 2026, 12:13 PM UTC.