California earthquakes

M1.9 earthquake 10 km ENE of Blackhawk, California

A magnitude 1.9 earthquake struck 10 km ENE of Blackhawk, California on Thu, Jan 24, 1980, 3:33 PM PST (23:33 UTC), 4 km (2 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1980-01-24 23:33:32 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
37.844° N, 121.793° 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 0.8 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
171°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 135 in the 30 days before it.

After

  1. 1.89 km ENE of Livermore, California · 17055 days ago · 3 km deep · 18 km away
  2. 2.110 km SSW of Brentwood, California · 17055 days ago · 4 km deep · 3 km away
  3. 3.011 km ENE of Blackhawk, California · 17055 days ago · 8 km deep · 1 km away
  4. 1.810 km ENE of Blackhawk, California · 17055 days ago · 8 km deep · 0 km away
  5. 3.111 km SW of Brentwood, California · 17055 days ago · 6 km deep · 1 km away
  6. 1.810 km E of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  7. 1.812 km E of Blackhawk, California · 17055 days ago · 8 km deep · 3 km away
  8. 2.710 km ENE of Blackhawk, California · 17055 days ago · 7 km deep · 1 km away
  9. 2.110 km ENE of Blackhawk, California · 17055 days ago · 7 km deep · 1 km away
  10. 3.09 km ENE of Blackhawk, California · 17055 days ago · 14 km deep · 1 km away
  11. 1.811 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 2 km away
  12. 1.911 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 2 km away
  13. 1.97 km N of Livermore, California · 17055 days ago · 1 km deep · 11 km away
  14. 3.311 km SW of Brentwood, California · 17055 days ago · 6 km deep · 2 km away
  15. 1.912 km E of Blackhawk, California · 17055 days ago · 9 km deep · 5 km away
  16. 1.911 km SW of Brentwood, California · 17055 days ago · 6 km deep · 1 km away
  17. 1.53 km N of Livermore, California · 17055 days ago · 5 km deep · 15 km away
  18. 3.211 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  19. 1.810 km ENE of Blackhawk, California · 17055 days ago · 6 km deep · 1 km away
  20. 2.010 km E of Blackhawk, California · 17055 days ago · 8 km deep · 1 km away
  21. 1.510 km ENE of Blackhawk, California · 17055 days ago · 4 km deep · 0 km away
  22. 2.69 km E of Blackhawk, California · 17055 days ago · 5 km deep · 2 km away
  23. 3.011 km WSW of Byron, California · 17055 days ago · 5 km deep · 2 km away
  24. 1.811 km E of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  25. 2.010 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 0 km away
  26. 1.910 km ENE of Blackhawk, California · 17055 days ago · 4 km deep · 0 km away
  27. 1.65 km ENE of Livermore, California · 17055 days ago · 3 km deep · 17 km away
  28. 2.311 km E of Blackhawk, California · 17055 days ago · 7 km deep · 1 km away
  29. 1.89 km ENE of Blackhawk, California · 17055 days ago · 14 km deep · 1 km away
  30. 2.211 km NNE of Livermore, California · 17055 days ago · 5 km deep · 8 km away
  31. 2.49 km ENE of Livermore, California · 17055 days ago · 1 km deep · 18 km away
  32. 2.711 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  33. 3.011 km E of Blackhawk, California · 17055 days ago · 6 km deep · 1 km away
  34. 2.410 km ENE of Blackhawk, California · 17055 days ago · 10 km deep · 1 km away
  35. 3.210 km W of Byron, California · 17055 days ago · 8 km deep · 3 km away
  36. 1.712 km SW of Byron, California · 17055 days ago · 11 km deep · 6 km away
  37. 2.011 km ENE of Blackhawk, California · 17055 days ago · 6 km deep · 1 km away
  38. 1.810 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  39. 1.89 km ENE of Livermore, California · 17055 days ago · 7 km deep · 18 km away
  40. 3.011 km ENE of Blackhawk, California · 17055 days ago · 6 km deep · 1 km away
  41. 3.411 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  42. 2.510 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  43. 1.810 km E of Blackhawk, California · 17055 days ago · 4 km deep · 1 km away
  44. 1.89 km E of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  45. 2.311 km ENE of Blackhawk, California · 17055 days ago · 6 km deep · 2 km away
  46. 1.911 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  47. 2.111 km SW of Brentwood, California · 17055 days ago · 6 km deep · 2 km away
  48. 4.410 km SW of Brentwood, California · 17055 days ago · 11 km deep · 3 km away
  49. 3.49 km SW of Brentwood, California · 17055 days ago · 11 km deep · 4 km away
  50. 4.610 km SW of Brentwood, California · 17055 days ago · 9 km deep · 3 km away
  51. 3.511 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  52. 1.610 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 2 km away
  53. 1.911 km NNE of Livermore, California · 17055 days ago · 14 km deep · 8 km away
  54. 2.010 km E of Blackhawk, California · 17055 days ago · 9 km deep · 2 km away
  55. 1.810 km NNE of Livermore, California · 17055 days ago · 13 km deep · 9 km away
  56. 3.210 km SW of Brentwood, California · 17055 days ago · 9 km deep · 2 km away
  57. 2.310 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  58. 2.310 km E of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  59. 1.610 km E of Blackhawk, California · 17055 days ago · 9 km deep · 2 km away
  60. 1.911 km SW of Brentwood, California · 17055 days ago · 5 km deep · 2 km away

The first 60 of at least 200.

Before

  1. 1.68 km NE of Livermore, California · 17055 days ago · 6 km deep · 13 km away
  2. 1.811 km NNE of Livermore, California · 17055 days ago · 10 km deep · 9 km away
  3. 1.811 km E of Blackhawk, California · 17055 days ago · 7 km deep · 1 km away
  4. 2.59 km ENE of Blackhawk, California · 17055 days ago · 13 km deep · 1 km away
  5. 3.1Northern California · 17055 days ago · 7 km deep · 2 km away
  6. 1.610 km ENE of Blackhawk, California · 17055 days ago · 4 km deep · 0 km away
  7. 2.811 km ENE of Blackhawk, California · 17055 days ago · 6 km deep · 1 km away
  8. 1.810 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 0 km away
  9. 2.8Northern California · 17055 days ago · 4 km deep · 2 km away
  10. 2.611 km E of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  11. 2.510 km ENE of Blackhawk, California · 17055 days ago · 7 km deep · 1 km away
  12. 2.210 km E of Blackhawk, California · 17055 days ago · 6 km deep · 1 km away
  13. 2.412 km E of Blackhawk, California · 17055 days ago · 13 km deep · 5 km away
  14. 2.511 km ENE of Blackhawk, California · 17055 days ago · 6 km deep · 1 km away
  15. 2.48 km WSW of Byron, California · 17055 days ago · 6 km deep · 6 km away
  16. 2.610 km ENE of Blackhawk, California · 17055 days ago · 7 km deep · 0 km away
  17. 2.111 km ENE of Blackhawk, California · 17055 days ago · 5 km deep · 1 km away
  18. 1.99 km NNE of Livermore, California · 17055 days ago · 12 km deep · 12 km away
  19. 2.210 km E of Blackhawk, California · 17055 days ago · 7 km deep · 1 km away
  20. 1.6Northern California · 17055 days ago · 3 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1050149. Read Mon, Oct 5, 2026, 5:32 AM UTC.