California earthquakes

M1.7 earthquake 10 km E of Blackhawk, California

A magnitude 1.7 earthquake struck 10 km E of Blackhawk, California on Fri, Jan 25, 1980, 11:44 PM PST (07:44 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M5.4 9 km NE of Livermore, 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1980-01-26 07:44:31 UTC
Depth
11.8 km (7.4 mi), shallow
Epicenter
37.837° N, 121.787° 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
±0.15
Depth from
From location
Station coverage gap
150°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 194 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 2.2Northern California · 17054 days ago · 12 km deep · 9 km away
  2. 2.59 km NNE of Livermore, California · 17054 days ago · 11 km deep · 11 km away
  3. 2.312 km E of Blackhawk, California · 17054 days ago · 13 km deep · 3 km away
  4. 2.012 km WSW of Byron, California · 17054 days ago · 12 km deep · 3 km away
  5. 2.412 km WSW of Byron, California · 17054 days ago · 14 km deep · 4 km away
  6. 2.012 km WSW of Byron, California · 17054 days ago · 13 km deep · 3 km away
  7. 1.911 km SW of Byron, California · 17054 days ago · 13 km deep · 7 km away
  8. 2.4Northern California · 17054 days ago · 4 km deep · 22 km away
  9. 2.17 km ESE of Livermore, California · 17054 days ago · 4 km deep · 22 km away
  10. 2.012 km N of Livermore, California · 17054 days ago · 9 km deep · 6 km away
  11. 1.810 km N of Livermore, California · 17054 days ago · 5 km deep · 7 km away
  12. 2.510 km ENE of Livermore, California · 17054 days ago · 4 km deep · 16 km away
  13. 1.912 km NNE of Livermore, California · 17054 days ago · 9 km deep · 7 km away
  14. 1.811 km N of Livermore, California · 17054 days ago · 13 km deep · 7 km away
  15. 1.810 km E of Blackhawk, California · 17054 days ago · 12 km deep · 1 km away
  16. 2.010 km E of Blackhawk, California · 17054 days ago · 12 km deep · 1 km away
  17. 1.711 km E of Blackhawk, California · 17054 days ago · 14 km deep · 3 km away
  18. 2.39 km NE of Milpitas, California · 17054 days ago · 7 km deep · 39 km away
  19. 2.212 km N of Livermore, California · 17054 days ago · 13 km deep · 5 km away
  20. 1.710 km E of Blackhawk, California · 17054 days ago · 11 km deep · 1 km away
  21. 1.910 km ENE of Blackhawk, California · 17054 days ago · 5 km deep · 3 km away
  22. 2.410 km E of Blackhawk, California · 17054 days ago · 5 km deep · 0 km away
  23. 1.910 km ENE of Blackhawk, California · 17054 days ago · 5 km deep · 0 km away
  24. 1.512 km E of Blackhawk, California · 17054 days ago · 14 km deep · 3 km away
  25. 2.69 km NE of San Martin, California · 17054 days ago · 9 km deep · 80 km away
  26. 1.64 km NNE of Pleasanton, California · 17054 days ago · 11 km deep · 16 km away
  27. 2.910 km ENE of Blackhawk, California · 17054 days ago · 5 km deep · 0 km away
  28. 2.210 km ENE of Blackhawk, California · 17054 days ago · 5 km deep · 1 km away
  29. 2.010 km E of Blackhawk, California · 17054 days ago · 5 km deep · 1 km away
  30. 1.712 km N of Livermore, California · 17054 days ago · 11 km deep · 5 km away
  31. 2.110 km ENE of Blackhawk, California · 17053 days ago · 5 km deep · 1 km away
  32. 1.510 km E of Blackhawk, California · 17053 days ago · 6 km deep · 2 km away
  33. 2.49 km ENE of Blackhawk, California · 17053 days ago · 5 km deep · 2 km away
  34. 3.011 km SW of Brentwood, California · 17053 days ago · 15 km deep · 2 km away
  35. 2.011 km E of Blackhawk, California · 17053 days ago · 9 km deep · 1 km away
  36. 1.511 km ENE of Blackhawk, California · 17053 days ago · 6 km deep · 2 km away
  37. 1.910 km ENE of Blackhawk, California · 17053 days ago · 5 km deep · 3 km away
  38. 5.49 km NE of Livermore, California · 17053 days ago · 14 km deep · 12 km away
  39. 2.112 km E of Blackhawk, California · 17053 days ago · 10 km deep · 4 km away
  40. 1.69 km NE of Livermore, California · 17053 days ago · 10 km deep · 12 km away
  41. 1.99 km NNE of Livermore, California · 17053 days ago · 13 km deep · 12 km away
  42. 1.66 km W of Brentwood, California · 17053 days ago · 57 km deep · 11 km away
  43. 1.59 km ESE of Livermore, California · 17053 days ago · 0 km deep · 24 km away
  44. 1.511 km E of Blackhawk, California · 17053 days ago · 11 km deep · 2 km away
  45. 2.410 km ENE of Livermore, California · 17053 days ago · 0 km deep · 19 km away
  46. 1.59 km NNE of Livermore, California · 17053 days ago · 12 km deep · 11 km away
  47. 1.610 km NNE of Livermore, California · 17053 days ago · 15 km deep · 11 km away
  48. 2.110 km ENE of Blackhawk, California · 17053 days ago · 12 km deep · 1 km away
  49. 2.512 km SW of Byron, California · 17053 days ago · 9 km deep · 5 km away
  50. 1.99 km NE of Livermore, California · 17053 days ago · 13 km deep · 12 km away
  51. 2.412 km WSW of Byron, California · 17053 days ago · 14 km deep · 4 km away
  52. 2.210 km ENE of Blackhawk, California · 17053 days ago · 11 km deep · 0 km away
  53. 2.99 km NE of Livermore, California · 17053 days ago · 14 km deep · 12 km away
  54. 2.010 km E of Blackhawk, California · 17053 days ago · 10 km deep · 0 km away
  55. 3.38km ESE of Linden, CA · 17053 days ago · 6 km deep · 71 km away
  56. 2.53 km S of Livermore, California · 17053 days ago · 2 km deep · 21 km away
  57. 2.18 km SSW of Brentwood, California · 17053 days ago · 18 km deep · 5 km away
  58. 2.810 km ENE of Blackhawk, California · 17053 days ago · 6 km deep · 2 km away
  59. 2.211 km E of Blackhawk, California · 17053 days ago · 12 km deep · 1 km away
  60. 2.112 km E of Blackhawk, California · 17053 days ago · 14 km deep · 4 km away

The first 60 of 194.

Before

  1. 1.612 km E of Blackhawk, California · 17054 days ago · 12 km deep · 3 km away
  2. 2.412 km WSW of Byron, California · 17054 days ago · 14 km deep · 3 km away
  3. 1.711 km E of Blackhawk, California · 17054 days ago · 9 km deep · 1 km away
  4. 2.610 km E of Blackhawk, California · 17054 days ago · 4 km deep · 1 km away
  5. 2.012 km E of Blackhawk, California · 17054 days ago · 13 km deep · 3 km away
  6. 1.811 km E of Blackhawk, California · 17054 days ago · 5 km deep · 1 km away
  7. 1.910 km NNE of Livermore, California · 17054 days ago · 10 km deep · 11 km away
  8. 1.811 km E of Blackhawk, California · 17054 days ago · 7 km deep · 1 km away
  9. 2.411 km NNE of Livermore, California · 17054 days ago · 12 km deep · 7 km away
  10. 2.011 km ENE of Blackhawk, California · 17054 days ago · 5 km deep · 1 km away
  11. 1.911 km E of Blackhawk, California · 17054 days ago · 12 km deep · 2 km away
  12. 2.311 km SW of Brentwood, California · 17054 days ago · 6 km deep · 3 km away
  13. 2.1Northern California · 17054 days ago · 6 km deep · 2 km away
  14. 2.210 km E of Blackhawk, California · 17054 days ago · 4 km deep · 1 km away
  15. 2.711 km E of Blackhawk, California · 17054 days ago · 5 km deep · 1 km away
  16. 2.07 km NNE of Livermore, California · 17054 days ago · 10 km deep · 12 km away
  17. 1.98 km NNE of Livermore, California · 17054 days ago · 11 km deep · 11 km away
  18. 2.08 km NE of Livermore, California · 17054 days ago · 3 km deep · 15 km away
  19. 1.610 km E of Blackhawk, California · 17054 days ago · 13 km deep · 1 km away
  20. 1.910 km NNE of Livermore, California · 17054 days ago · 12 km deep · 9 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1050366. Read Mon, Oct 5, 2026, 8:33 AM UTC.