California earthquakes

M1.6 earthquake 4 km E of Fremont, California

A magnitude 1.6 earthquake struck 4 km E of Fremont, California on Tue, Mar 3, 1981, 3:16 AM PST (11:16 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M1.8 6 km E of Fremont, California. This one was a foreshock.

Fremont 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
1.6 (md), micro
Local time
UTC
1981-03-03 11:16:54 UTC
Depth
14.0 km (8.7 mi), shallow
Epicenter
37.547° N, 121.936° 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 0.7 km horizontally, 2.9 km in depth
Magnitude uncertainty
±0.32
Depth from
From location
Station coverage gap
98°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 103 in the 60 days after this one and 64 in the 30 days before it.

After

  1. 1.65 km E of Fremont, California · 16639 days ago · 6 km deep · 1 km away
  2. 1.86 km E of Fremont, California · 16639 days ago · 9 km deep · 2 km away
  3. 2.15 km E of Fremont, California · 16639 days ago · 9 km deep · 1 km away
  4. 1.75 km E of Fremont, California · 16639 days ago · 9 km deep · 1 km away
  5. 1.85 km E of Fremont, California · 16639 days ago · 9 km deep · 1 km away
  6. 1.73 km E of Fremont, California · 16639 days ago · 8 km deep · 1 km away
  7. 2.05 km E of Fremont, California · 16639 days ago · 9 km deep · 1 km away
  8. 1.74 km E of Fremont, California · 16639 days ago · 9 km deep · 0 km away
  9. 1.65 km E of Fremont, California · 16639 days ago · 10 km deep · 1 km away
  10. 1.84 km E of Fremont, California · 16639 days ago · 9 km deep · 0 km away
  11. 1.85 km SSW of Sunol, California · 16639 days ago · 11 km deep · 1 km away
  12. 2.39 km NNE of Livermore, California · 16639 days ago · 13 km deep · 30 km away
  13. 1.64 km E of Fremont, California · 16639 days ago · 8 km deep · 0 km away
  14. 1.94 km E of Fremont, California · 16639 days ago · 10 km deep · 1 km away
  15. 1.85 km E of Fremont, California · 16638 days ago · 10 km deep · 1 km away
  16. 1.66 km ENE of East Foothills, California · 16638 days ago · 4 km deep · 23 km away
  17. 1.78 km NE of Gilroy, California · 16638 days ago · 4 km deep · 67 km away
  18. 1.62 km ENE of Pacheco, California · 16637 days ago · 15 km deep · 51 km away
  19. 1.79 km E of San Martin, California · 16637 days ago · 8 km deep · 64 km away
  20. 1.64 km E of Fremont, California · 16636 days ago · 8 km deep · 1 km away
  21. 2.12 km ESE of Aromas, California · 16635 days ago · 8 km deep · 79 km away
  22. 3.22 km ESE of Aromas, California · 16634 days ago · 8 km deep · 79 km away
  23. 1.73 km SW of Davenport, California · 16634 days ago · 7 km deep · 67 km away
  24. 2.714 km E of Seven Trees, California · 16634 days ago · 7 km deep · 35 km away
  25. 1.82 km SSW of Pittsburg, California · 16633 days ago · 18 km deep · 51 km away
  26. 3.31 km ENE of Aromas, California · 16632 days ago · 7 km deep · 78 km away
  27. 1.61 km ENE of Aromas, California · 16632 days ago · 7 km deep · 78 km away
  28. 1.61 km ENE of Aromas, California · 16632 days ago · 7 km deep · 78 km away
  29. 1.60 km ENE of Aromas, California · 16632 days ago · 6 km deep · 78 km away
  30. 2.21 km ENE of Aromas, California · 16632 days ago · 7 km deep · 78 km away
  31. 2.13 km ESE of Aromas, California · 16631 days ago · 6 km deep · 80 km away
  32. 1.75 km E of Fremont, California · 16629 days ago · 5 km deep · 1 km away
  33. 1.813 km N of Morgan Hill, California · 16629 days ago · 6 km deep · 42 km away
  34. 1.75 km E of Fremont, California · 16629 days ago · 9 km deep · 1 km away
  35. 1.68 km ENE of Gilroy, California · 16628 days ago · 7 km deep · 68 km away
  36. 2.17 km NNE of Milpitas, California · 16628 days ago · 0 km deep · 8 km away
  37. 1.69 km ESE of East Foothills, California · 16628 days ago · 8 km deep · 29 km away
  38. 1.73 km N of Piedmont, California · 16628 days ago · 11 km deep · 43 km away
  39. 3.19 km SW of Brentwood, California · 16627 days ago · 16 km deep · 38 km away
  40. 2.14 km ESE of Aromas, California · 16627 days ago · 6 km deep · 81 km away
  41. 2.314 km E of Seven Trees, California · 16626 days ago · 2 km deep · 36 km away
  42. 1.614 km E of Seven Trees, California · 16623 days ago · 1 km deep · 36 km away
  43. 1.78 km ENE of Gilroy, California · 16623 days ago · 8 km deep · 70 km away
  44. 1.63 km NNE of Day Valley, California · 16623 days ago · 15 km deep · 54 km away
  45. 1.611 km E of Blackhawk, California · 16623 days ago · 11 km deep · 34 km away
  46. 2.85 km NNE of Interlaken, California · 16622 days ago · 12 km deep · 64 km away
  47. 1.69 km NE of Gilroy, California · 16622 days ago · 9 km deep · 67 km away
  48. 1.64 km NW of Dublin, California · 16621 days ago · 7 km deep · 20 km away
  49. 2.115 km E of Seven Trees, California · 16621 days ago · 3 km deep · 37 km away
  50. 2.314 km E of Seven Trees, California · 16620 days ago · 4 km deep · 37 km away
  51. 2.37 km E of East Foothills, California · 16620 days ago · 8 km deep · 27 km away
  52. 2.23 km NNW of Castro Valley, California · 16619 days ago · 10 km deep · 25 km away
  53. 1.69 km NE of San Martin, California · 16618 days ago · 7 km deep · 57 km away
  54. 3.114 km SSE of Livermore, California · 16617 days ago · 2 km deep · 22 km away
  55. 1.713 km N of Morgan Hill, California · 16617 days ago · 6 km deep · 42 km away
  56. 1.614 km SSE of Livermore, California · 16616 days ago · 2 km deep · 22 km away
  57. 1.89 km NNE of San Juan Bautista, California · 16616 days ago · 4 km deep · 79 km away
  58. 2.42 km SSW of Hollister, California · 16615 days ago · 9 km deep · 92 km away
  59. 1.710 km E of San Martin, California · 16614 days ago · 9 km deep · 64 km away
  60. 1.515 km SSE of Livermore, California · 16614 days ago · 2 km deep · 22 km away

The first 60 of 103.

Before

  1. 2.45 km E of Fremont, California · 16639 days ago · 9 km deep · 1 km away
  2. 1.65 km E of Fremont, California · 16639 days ago · 9 km deep · 1 km away
  3. 1.74 km E of Fremont, California · 16639 days ago · 8 km deep · 0 km away
  4. 3.05 km E of Fremont, California · 16639 days ago · 11 km deep · 0 km away
  5. 2.15 km E of Fremont, California · 16639 days ago · 9 km deep · 1 km away
  6. 2.25 km E of Fremont, California · 16639 days ago · 10 km deep · 1 km away
  7. 4.45 km E of Fremont, California · 16639 days ago · 12 km deep · 1 km away
  8. 2.34 km E of Fremont, California · 16639 days ago · 10 km deep · 0 km away
  9. 1.712 km N of Morgan Hill, California · 16641 days ago · 7 km deep · 42 km away
  10. 2.04 km NE of Interlaken, California · 16642 days ago · 12 km deep · 66 km away
  11. 1.64 km NE of Interlaken, California · 16642 days ago · 12 km deep · 66 km away
  12. 2.614 km SSE of Livermore, California · 16642 days ago · 2 km deep · 22 km away
  13. 1.79 km ESE of East Foothills, California · 16642 days ago · 9 km deep · 29 km away
  14. 1.715 km SSE of Livermore, California · 16642 days ago · 3 km deep · 22 km away
  15. 1.615 km SSE of Livermore, California · 16642 days ago · 2 km deep · 22 km away
  16. 1.615 km SSE of Livermore, California · 16642 days ago · 2 km deep · 22 km away
  17. 1.61 km NNW of Pleasant Hill, California · 16643 days ago · 8 km deep · 48 km away
  18. 1.813 km NW of Pacific Grove, California · 16643 days ago · 8 km deep · 96 km away
  19. 2.011 km E of Blackhawk, California · 16645 days ago · 11 km deep · 34 km away
  20. 1.58 km ENE of Morgan Hill, California · 16645 days ago · 2 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1060954. Read Tue, Sep 22, 2026, 9:38 PM UTC.