California earthquakes

M1.8 earthquake 5 km E of Fremont, California

A magnitude 1.8 earthquake struck 5 km E of Fremont, California on Sat, Sep 26, 1981, 10:37 AM PDT (17:37 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M2.3 9 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
1.8 (md), micro
Local time
UTC
1981-09-26 17:37:31 UTC
Depth
9.4 km (5.8 mi), shallow
Epicenter
37.543° N, 121.928° 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 0.1 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
44°
Stations used
49

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 99 in the 60 days after this one and 36 in the 30 days before it.

After

  1. 1.75 km SSW of Gilroy, California · 16433 days ago · 4 km deep · 71 km away
  2. 2.39 km ESE of East Foothills, California · 16432 days ago · 8 km deep · 29 km away
  3. 2.49 km NE of Gilroy, California · 16432 days ago · 9 km deep · 65 km away
  4. 1.67 km SSE of Gilroy, California · 16431 days ago · 5 km deep · 75 km away
  5. 4.03 km S of San Juan Bautista, California · 16431 days ago · 9 km deep · 88 km away
  6. 2.44 km S of San Juan Bautista, California · 16431 days ago · 9 km deep · 89 km away
  7. 1.54 km S of San Juan Bautista, California · 16431 days ago · 8 km deep · 89 km away
  8. 2.34 km S of San Juan Bautista, California · 16431 days ago · 7 km deep · 89 km away
  9. 2.54 km SSE of San Juan Bautista, California · 16431 days ago · 7 km deep · 89 km away
  10. 2.44 km SSE of San Juan Bautista, California · 16431 days ago · 7 km deep · 89 km away
  11. 2.13 km SSW of San Juan Bautista, California · 16430 days ago · 7 km deep · 88 km away
  12. 2.74 km S of San Juan Bautista, California · 16430 days ago · 7 km deep · 89 km away
  13. 2.93 km ESE of Brentwood, California · 16427 days ago · 9 km deep · 49 km away
  14. 1.54 km SSE of Diablo Grande, California · 16426 days ago · 8 km deep · 62 km away
  15. 1.89 km NE of Milpitas, California · 16425 days ago · 7 km deep · 9 km away
  16. 2.322 km SE of Livermore, California · 16424 days ago · 7 km deep · 32 km away
  17. 2.33 km S of San Juan Bautista, California · 16424 days ago · 7 km deep · 88 km away
  18. 2.010 km SW of Ridgemark, California · 16424 days ago · 10 km deep · 97 km away
  19. 2.31 km NNE of Pacifica, California · 16423 days ago · 7 km deep · 50 km away
  20. 1.86 km SE of Lexington Hills, California · 16423 days ago · 13 km deep · 46 km away
  21. 1.81 km NNE of Pacifica, California · 16423 days ago · 7 km deep · 50 km away
  22. 2.110 km SSW of Tracy, California · 16423 days ago · 9 km deep · 43 km away
  23. 1.94 km SSE of San Juan Bautista, California · 16422 days ago · 7 km deep · 89 km away
  24. 1.57 km WSW of Ridgemark, California · 16421 days ago · 9 km deep · 94 km away
  25. 1.67 km WSW of Ridgemark, California · 16421 days ago · 9 km deep · 94 km away
  26. 1.66 km SW of Gilroy, California · 16421 days ago · 5 km deep · 69 km away
  27. 2.07 km WSW of Ridgemark, California · 16421 days ago · 9 km deep · 94 km away
  28. 1.76 km NE of East Foothills, California · 16421 days ago · 8 km deep · 20 km away
  29. 2.15 km NNE of San Leandro, California · 16420 days ago · 11 km deep · 31 km away
  30. 1.715 km WNW of Davenport, California · 16420 days ago · 4 km deep · 62 km away
  31. 2.19 km ESE of East Foothills, California · 16417 days ago · 7 km deep · 29 km away
  32. 2.87 km WSW of Ridgemark, California · 16416 days ago · 9 km deep · 94 km away
  33. 1.79 km NNW of Hollister, California · 16415 days ago · 10 km deep · 80 km away
  34. 1.610 km ESE of Gilroy, California · 16414 days ago · 5 km deep · 76 km away
  35. 2.010 km N of Pittsburg, California · 16414 days ago · 21 km deep · 64 km away
  36. 1.510 km ESE of Gilroy, California · 16413 days ago · 5 km deep · 76 km away
  37. 2.03 km SSE of Brentwood, California · 16412 days ago · 2 km deep · 45 km away
  38. 2.46 km SSE of San Juan Bautista, California · 16411 days ago · 9 km deep · 91 km away
  39. 1.66 km SSE of San Juan Bautista, California · 16411 days ago · 9 km deep · 91 km away
  40. 1.78 km S of Gilroy, California · 16411 days ago · 7 km deep · 75 km away
  41. 2.714 km E of Seven Trees, California · 16408 days ago · 7 km deep · 34 km away
  42. 1.99 km NE of Gilroy, California · 16407 days ago · 8 km deep · 66 km away
  43. 1.72 km NE of San Leandro, California · 16406 days ago · 3 km deep · 29 km away
  44. 1.87 km SSW of Pescadero, California · 16406 days ago · 14 km deep · 57 km away
  45. 1.715 km NE of Morgan Hill, California · 16406 days ago · 7 km deep · 48 km away
  46. 2.310 km ESE of East Foothills, California · 16406 days ago · 8 km deep · 29 km away
  47. 2.710 km ESE of East Foothills, California · 16405 days ago · 8 km deep · 30 km away
  48. 1.63 km ENE of Grayson, California · 16405 days ago · -1 km deep · 69 km away
  49. 2.61 km NE of Tres Pinos, California · 16405 days ago · 8 km deep · 99 km away
  50. 2.41 km NE of Tres Pinos, California · 16405 days ago · 8 km deep · 99 km away
  51. 2.015 km WNW of Davenport, California · 16405 days ago · 1 km deep · 64 km away
  52. 2.013 km N of Hollister, California · 16405 days ago · 6 km deep · 80 km away
  53. 2.28 km ENE of Gilroy, California · 16404 days ago · 8 km deep · 69 km away
  54. 2.22 km SSW of Hollister, California · 16404 days ago · 9 km deep · 91 km away
  55. 2.32 km S of Fairview, California · 16404 days ago · 6 km deep · 16 km away
  56. 1.712 km SE of Livermore, California · 16404 days ago · 6 km deep · 22 km away
  57. 3.14 km SSE of San Juan Bautista, California · 16404 days ago · 6 km deep · 89 km away
  58. 2.87 km S of Sunol, California · 16404 days ago · 9 km deep · 4 km away
  59. 2.013 km NNE of Hollister, California · 16403 days ago · 5 km deep · 81 km away
  60. 2.211 km ENE of Blackhawk, California · 16402 days ago · 16 km deep · 36 km away

The first 60 of 99.

Before

  1. 1.64 km S of San Juan Bautista, California · 16435 days ago · 7 km deep · 89 km away
  2. 3.13 km S of San Juan Bautista, California · 16435 days ago · 7 km deep · 88 km away
  3. 3.23 km S of San Juan Bautista, California · 16435 days ago · 8 km deep · 88 km away
  4. 1.88 km ENE of Blackhawk, California · 16435 days ago · 14 km deep · 35 km away
  5. 1.720 km W of Volta, California · 16436 days ago · 0 km deep · 85 km away
  6. 1.82 km NNE of Woodside, California · 16437 days ago · 5 km deep · 30 km away
  7. 2.03 km SW of Davenport, California · 16437 days ago · 11 km deep · 67 km away
  8. 2.19 km ESE of East Foothills, California · 16438 days ago · 5 km deep · 28 km away
  9. 1.521 km ENE of East Foothills, California · 16439 days ago · 6 km deep · 30 km away
  10. 1.714 km E of Seven Trees, California · 16441 days ago · 4 km deep · 36 km away
  11. 1.75 km WNW of Broadmoor, California · 16442 days ago · 4 km deep · 56 km away
  12. 1.615 km N of Morgan Hill, California · 16443 days ago · 6 km deep · 40 km away
  13. 1.615 km N of Morgan Hill, California · 16443 days ago · 6 km deep · 40 km away
  14. 2.011 km SSW of Loyola, California · 16445 days ago · 9 km deep · 38 km away
  15. 1.65 km SW of Ridgemark, California · 16445 days ago · 9 km deep · 97 km away
  16. 2.67 km W of Gilroy, California · 16446 days ago · 4 km deep · 66 km away
  17. 1.77 km ESE of Prunedale, California · 16446 days ago · 8 km deep · 92 km away
  18. 3.09 km NE of San Martin, California · 16447 days ago · 8 km deep · 55 km away
  19. 1.61 km WSW of Belmont, California · 16448 days ago · 3 km deep · 32 km away
  20. 2.96 km S of San Juan Bautista, California · 16450 days ago · 10 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1067955. Read Wed, Sep 23, 2026, 2:07 PM UTC.