California earthquakes

M1.9 earthquake 3 km NE of Fremont, California

A magnitude 1.9 earthquake struck 3 km NE of Fremont, California on Tue, Oct 18, 1983, 6:13 AM PDT (13:13 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.6 12 km ESE of East Foothills, 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1983-10-18 13:13:06 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
37.572° N, 121.966° 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 0.4 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
94°
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: 70 in the 60 days after this one and 45 in the 30 days before it.

After

  1. 1.814 km E of Seven Trees, California · 15692 days ago · 7 km deep · 39 km away
  2. 1.84 km ESE of South San Francisco, California · 15691 days ago · 7 km deep · 36 km away
  3. 1.55 km NE of Black Point-Green Point, California · 15691 days ago · 5 km deep · 79 km away
  4. 2.27 km NE of San Juan Bautista, California · 15689 days ago · 5 km deep · 86 km away
  5. 1.98 km ENE of Morgan Hill, California · 15688 days ago · 2 km deep · 57 km away
  6. 3.612 km ESE of East Foothills, California · 15688 days ago · 7 km deep · 37 km away
  7. 2.23 km W of Livermore, California · 15688 days ago · 14 km deep · 18 km away
  8. 2.43 km W of Livermore, California · 15688 days ago · 16 km deep · 18 km away
  9. 1.68 km NE of Milpitas, California · 15688 days ago · 6 km deep · 14 km away
  10. 1.91 km WSW of Dublin, California · 15687 days ago · 8 km deep · 14 km away
  11. 1.71 km WSW of Dublin, California · 15687 days ago · 8 km deep · 14 km away
  12. 1.614 km E of Seven Trees, California · 15683 days ago · 2 km deep · 40 km away
  13. 1.78 km N of Hollister, California · 15682 days ago · 8 km deep · 87 km away
  14. 1.84 km SE of North Gate, California · 15681 days ago · 11 km deep · 34 km away
  15. 1.75 km NE of Black Point-Green Point, California · 15679 days ago · 6 km deep · 78 km away
  16. 2.44 km ESE of Sonoma, California · 15679 days ago · 8 km deep · 88 km away
  17. 2.61 km NNE of San Pablo, California · 15678 days ago · 5 km deep · 55 km away
  18. 1.52 km S of Concord, California · 15676 days ago · 11 km deep · 43 km away
  19. 2.06 km SSW of Davenport, California · 15676 days ago · 5 km deep · 72 km away
  20. 1.68 km NNW of Hollister, California · 15675 days ago · 2 km deep · 87 km away
  21. 1.61 km W of Visitacion Valley, California · 15673 days ago · 10 km deep · 43 km away
  22. 1.65 km SSE of San Juan Bautista, California · 15673 days ago · 5 km deep · 95 km away
  23. 2.85 km SSE of San Juan Bautista, California · 15673 days ago · 5 km deep · 95 km away
  24. 1.82 km N of Blackhawk, California · 15673 days ago · 9 km deep · 31 km away
  25. 2.216 km SSW of Point Reyes Station, California · 15671 days ago · 5 km deep · 92 km away
  26. 1.94 km N of Benicia, California · 15671 days ago · 4 km deep · 60 km away
  27. 1.79 km ENE of Milpitas, California · 15671 days ago · 7 km deep · 17 km away
  28. 2.012 km ESE of East Foothills, California · 15670 days ago · 7 km deep · 36 km away
  29. 1.96 km NNE of Interlaken, California · 15670 days ago · 7 km deep · 67 km away
  30. 1.59 km NNE of East Foothills, California · 15668 days ago · 7 km deep · 20 km away
  31. 2.35 km SSE of San Juan Bautista, California · 15667 days ago · 3 km deep · 95 km away
  32. 1.66 km ENE of Corralitos, California · 15667 days ago · 0 km deep · 65 km away
  33. 2.75 km NNE of Ridgemark, California · 15667 days ago · 7 km deep · 97 km away
  34. 1.64 km ESE of Piedmont, California · 15666 days ago · 8 km deep · 33 km away
  35. 1.63 km ESE of Berkeley, California · 15665 days ago · 10 km deep · 40 km away
  36. 1.81 km NNW of Point Reyes Station, California · 15664 days ago · 2 km deep · 94 km away
  37. 2.215 km N of Morgan Hill, California · 15664 days ago · 2 km deep · 43 km away
  38. 1.612 km ENE of Hollister, California · 15662 days ago · 5 km deep · 95 km away
  39. 2.24 km NNE of San Leandro, California · 15661 days ago · 8 km deep · 26 km away
  40. 3.05 km SW of Dublin, California · 15660 days ago · 11 km deep · 12 km away
  41. 2.16 km WSW of Gilroy, California · 15657 days ago · 4 km deep · 72 km away
  42. 1.75 km NE of San Martin, California · 15656 days ago · 3 km deep · 61 km away
  43. 2.35 km NE of San Martin, California · 15656 days ago · 3 km deep · 61 km away
  44. 2.15 km NE of San Martin, California · 15656 days ago · 3 km deep · 61 km away
  45. 1.62 km SE of Pacheco, California · 15654 days ago · 8 km deep · 45 km away
  46. 1.915 km S of Pescadero, California · 15654 days ago · 10 km deep · 61 km away
  47. 2.05 km SSE of San Juan Bautista, California · 15653 days ago · 5 km deep · 95 km away
  48. 2.010 km N of Pittsburg, California · 15653 days ago · 17 km deep · 61 km away
  49. 1.722 km NE of Morgan Hill, California · 15652 days ago · 2 km deep · 54 km away
  50. 2.57 km SSE of Gilroy, California · 15651 days ago · 4 km deep · 79 km away
  51. 1.67 km SSE of Gilroy, California · 15651 days ago · 5 km deep · 79 km away
  52. 2.317 km W of Volta, California · 15650 days ago · 0 km deep · 90 km away
  53. 1.715 km E of Seven Trees, California · 15650 days ago · 2 km deep · 41 km away
  54. 1.63 km ESE of Moskowite Corner, California · 15648 days ago · 7 km deep · 97 km away
  55. 1.62 km WSW of San Juan Bautista, California · 15648 days ago · 5 km deep · 89 km away
  56. 1.98 km NE of San Martin, California · 15648 days ago · 8 km deep · 62 km away
  57. 2.22 km NNE of Diablo, California · 15647 days ago · 10 km deep · 31 km away
  58. 1.97 km E of Penngrove, California · 15646 days ago · 4 km deep · 96 km away
  59. 1.612 km NW of Diablo Grande, California · 15644 days ago · 3 km deep · 53 km away
  60. 1.822 km WNW of Diablo Grande, California · 15643 days ago · 5 km deep · 41 km away

The first 60 of 70.

Before

  1. 1.73 km E of Vine Hill, California · 15692 days ago · 8 km deep · 50 km away
  2. 2.00 km NNW of Visitacion Valley, California · 15693 days ago · 7 km deep · 42 km away
  3. 2.111 km NNE of Livermore, California · 15694 days ago · 13 km deep · 31 km away
  4. 2.12 km S of Diablo, California · 15697 days ago · 7 km deep · 27 km away
  5. 1.67 km SSE of San Juan Bautista, California · 15697 days ago · 9 km deep · 97 km away
  6. 1.77 km WNW of Broadmoor, California · 15698 days ago · 6 km deep · 54 km away
  7. 1.910 km SSE of Muir Beach, California · 15698 days ago · 11 km deep · 56 km away
  8. 2.314 km S of Mountain House, California · 15698 days ago · 9 km deep · 36 km away
  9. 3.012 km WSW of Byron, California · 15700 days ago · 12 km deep · 32 km away
  10. 2.67 km E of East Foothills, California · 15700 days ago · 8 km deep · 30 km away
  11. 3.17 km E of East Foothills, California · 15700 days ago · 8 km deep · 30 km away
  12. 1.88 km ENE of Livermore, California · 15701 days ago · 8 km deep · 29 km away
  13. 1.57 km NE of Livermore, California · 15701 days ago · 9 km deep · 29 km away
  14. 2.58 km NE of Morgan Hill, California · 15703 days ago · 3 km deep · 55 km away
  15. 1.99 km W of Volta, California · 15703 days ago · 6 km deep · 98 km away
  16. 2.23 km NE of Green Valley, California · 15705 days ago · 10 km deep · 80 km away
  17. 1.9Central California · 15706 days ago · 4 km deep · 75 km away
  18. 2.54 km SSE of San Juan Bautista, California · 15707 days ago · 5 km deep · 94 km away
  19. 3.24 km SSE of San Juan Bautista, California · 15707 days ago · 6 km deep · 93 km away
  20. 1.514 km SSE of Livermore, California · 15707 days ago · 8 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1105142. Read Sun, Oct 4, 2026, 8:50 PM UTC.