California earthquakes

M2.2 earthquake 10 km E of Blackhawk, California

A magnitude 2.2 earthquake struck 10 km E of Blackhawk, California on Fri, Feb 15, 1985, 10:37 PM PST (06:37 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.3 15 km E of Seven Trees, California. This one was a foreshock.

Blackhawk 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
2.2 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1985-02-16 06:37:22 UTC
Depth
10.1 km (6.3 mi), shallow
Epicenter
37.829° N, 121.785° 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 0.2 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
88°
Stations used
38

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 98 in the 60 days after this one and 36 in the 30 days before it.

After

  1. 2.05 km ESE of Lexington Hills, California · 15204 days ago · 13 km deep · 77 km away
  2. 2.33 km N of San Leandro, California · 15201 days ago · 1 km deep · 34 km away
  3. 1.816 km E of Seven Trees, California · 15201 days ago · 4 km deep · 62 km away
  4. 1.72 km SE of Loyola, California · 15200 days ago · 6 km deep · 61 km away
  5. 1.78 km E of Gilroy, California · 15200 days ago · 5 km deep · 96 km away
  6. 1.99 km ESE of East Foothills, California · 15198 days ago · 7 km deep · 53 km away
  7. 1.77 km E of Gilroy, California · 15198 days ago · 5 km deep · 95 km away
  8. 3.011 km ESE of East Foothills, California · 15196 days ago · 8 km deep · 55 km away
  9. 1.911 km ESE of East Foothills, California · 15196 days ago · 7 km deep · 55 km away
  10. 1.814 km NE of East Foothills, California · 15196 days ago · 7 km deep · 38 km away
  11. 2.316 km E of Seven Trees, California · 15196 days ago · 10 km deep · 62 km away
  12. 2.216 km E of Seven Trees, California · 15196 days ago · 8 km deep · 62 km away
  13. 1.918 km ENE of East Foothills, California · 15195 days ago · 5 km deep · 49 km away
  14. 1.88 km NNE of East Foothills, California · 15195 days ago · 7 km deep · 42 km away
  15. 1.79 km E of San Martin, California · 15193 days ago · 8 km deep · 86 km away
  16. 1.79 km ESE of Black Point-Green Point, California · 15193 days ago · 14 km deep · 62 km away
  17. 1.79 km ESE of East Foothills, California · 15192 days ago · 8 km deep · 53 km away
  18. 1.713 km N of Morgan Hill, California · 15191 days ago · 4 km deep · 66 km away
  19. 1.64 km NNE of San Leandro, California · 15191 days ago · 11 km deep · 32 km away
  20. 1.815 km E of Seven Trees, California · 15190 days ago · 3 km deep · 61 km away
  21. 2.014 km E of Seven Trees, California · 15190 days ago · 3 km deep · 61 km away
  22. 2.115 km E of Seven Trees, California · 15190 days ago · 3 km deep · 61 km away
  23. 1.53 km ESE of Kenwood, California · 15189 days ago · 8 km deep · 89 km away
  24. 1.911 km N of Morgan Hill, California · 15189 days ago · 6 km deep · 67 km away
  25. 1.512 km ESE of East Foothills, California · 15189 days ago · 6 km deep · 57 km away
  26. 2.49 km ENE of Morgan Hill, California · 15189 days ago · 5 km deep · 77 km away
  27. 2.716 km N of Morgan Hill, California · 15186 days ago · 5 km deep · 63 km away
  28. 1.715 km E of Seven Trees, California · 15185 days ago · 2 km deep · 61 km away
  29. 1.69 km NNE of Morgan Hill, California · 15184 days ago · 3 km deep · 71 km away
  30. 1.58 km NE of San Martin, California · 15184 days ago · 7 km deep · 80 km away
  31. 1.813 km ESE of East Foothills, California · 15184 days ago · 7 km deep · 57 km away
  32. 3.315 km E of Seven Trees, California · 15180 days ago · 6 km deep · 61 km away
  33. 2.115 km E of Seven Trees, California · 15180 days ago · 6 km deep · 61 km away
  34. 1.79 km SE of Livermore, California · 15179 days ago · 7 km deep · 24 km away
  35. 1.86 km W of Glen Ellen, California · 15179 days ago · 2 km deep · 93 km away
  36. 1.66 km WSW of Gilroy, California · 15179 days ago · 5 km deep · 95 km away
  37. 1.99 km E of San Martin, California · 15178 days ago · 8 km deep · 86 km away
  38. 1.77 km NNW of Day Valley, California · 15178 days ago · 16 km deep · 82 km away
  39. 2.214 km N of Morgan Hill, California · 15178 days ago · 3 km deep · 64 km away
  40. 2.113 km N of Morgan Hill, California · 15178 days ago · 4 km deep · 65 km away
  41. 2.312 km ESE of East Foothills, California · 15177 days ago · 8 km deep · 57 km away
  42. 2.04 km E of Day Valley, California · 15177 days ago · 10 km deep · 88 km away
  43. 2.114 km E of Seven Trees, California · 15177 days ago · 7 km deep · 63 km away
  44. 1.63 km WSW of Campbell, California · 15177 days ago · 5 km deep · 64 km away
  45. 2.54 km W of Glen Ellen, California · 15175 days ago · 9 km deep · 91 km away
  46. 1.814 km E of Seven Trees, California · 15175 days ago · 3 km deep · 60 km away
  47. 2.05 km W of Glen Ellen, California · 15175 days ago · 0 km deep · 92 km away
  48. 1.50 km WNW of Concord, California · 15174 days ago · 13 km deep · 28 km away
  49. 1.91 km SSE of Concord, California · 15174 days ago · 13 km deep · 26 km away
  50. 2.57 km ENE of Morgan Hill, California · 15173 days ago · 4 km deep · 76 km away
  51. 2.68 km NE of Gilroy, California · 15173 days ago · 4 km deep · 90 km away
  52. 1.62 km ENE of Berkeley, California · 15172 days ago · 8 km deep · 41 km away
  53. 2.34 km E of Kenwood, California · 15172 days ago · 0 km deep · 89 km away
  54. 1.93 km E of Berkeley, California · 15172 days ago · 10 km deep · 40 km away
  55. 2.615 km E of Seven Trees, California · 15172 days ago · 5 km deep · 61 km away
  56. 1.614 km N of Morgan Hill, California · 15171 days ago · 6 km deep · 64 km away
  57. 2.414 km E of Seven Trees, California · 15170 days ago · 2 km deep · 60 km away
  58. 3.014 km N of Morgan Hill, California · 15170 days ago · 6 km deep · 65 km away
  59. 1.815 km N of Morgan Hill, California · 15169 days ago · 6 km deep · 64 km away
  60. 1.9Northern California · 15169 days ago · 2 km deep · 60 km away

The first 60 of 98.

Before

  1. 1.88 km ENE of Morgan Hill, California · 15204 days ago · 2 km deep · 77 km away
  2. 1.816 km N of Morgan Hill, California · 15204 days ago · 4 km deep · 63 km away
  3. 2.114 km N of Morgan Hill, California · 15205 days ago · 3 km deep · 64 km away
  4. 1.815 km E of Seven Trees, California · 15206 days ago · 6 km deep · 61 km away
  5. 1.513 km N of Morgan Hill, California · 15206 days ago · 4 km deep · 66 km away
  6. 1.715 km E of Seven Trees, California · 15207 days ago · 5 km deep · 62 km away
  7. 1.79 km ESE of East Foothills, California · 15209 days ago · 8 km deep · 53 km away
  8. 2.03 km E of Saratoga, California · 15210 days ago · 7 km deep · 65 km away
  9. 2.48 km NE of Morgan Hill, California · 15210 days ago · 3 km deep · 74 km away
  10. 1.613 km N of Morgan Hill, California · 15211 days ago · 5 km deep · 65 km away
  11. 1.713 km N of Morgan Hill, California · 15211 days ago · 5 km deep · 65 km away
  12. 2.17 km NNE of Morgan Hill, California · 15212 days ago · 6 km deep · 72 km away
  13. 1.78 km NE of Milpitas, California · 15214 days ago · 7 km deep · 39 km away
  14. 2.114 km E of Seven Trees, California · 15214 days ago · 5 km deep · 61 km away
  15. 2.011 km NNW of Pittsburg, California · 15214 days ago · 17 km deep · 36 km away
  16. 2.010 km NE of Morgan Hill, California · 15215 days ago · 8 km deep · 71 km away
  17. 2.110 km N of Pittsburg, California · 15215 days ago · 20 km deep · 34 km away
  18. 2.110 km N of Pittsburg, California · 15215 days ago · 22 km deep · 34 km away
  19. 1.68 km ENE of San Martin, California · 15215 days ago · 7 km deep · 82 km away
  20. 1.69 km NNE of Morgan Hill, California · 15216 days ago · 3 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc41077. Read Fri, Oct 2, 2026, 8:32 PM UTC.