California earthquakes

M1.8 earthquake 10 km NE of Milpitas, California

A magnitude 1.8 earthquake struck 10 km NE of Milpitas, California on Tue, Feb 27, 1990, 9:23 AM PST (17:23 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M5.4 5 km NNW of Aromas, California. This one was a foreshock.

Milpitas 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, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-02-27 17:23:44 UTC
Depth
7.2 km (4.5 mi), shallow
Epicenter
37.494° N, 121.826° 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 0.2 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
38°
Stations used
36

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 179 in the 60 days after this one and 136 in the 30 days before it.

After

  1. 2.01 km ENE of Pittsburg, California · 13367 days ago · 19 km deep · 60 km away
  2. 1.61 km ENE of Aromas, California · 13367 days ago · 9 km deep · 69 km away
  3. 2.04 km ENE of Tres Pinos, California · 13366 days ago · 9 km deep · 90 km away
  4. 2.15 km SW of Monte Sereno, California · 13366 days ago · 13 km deep · 38 km away
  5. 1.76 km SSW of Los Banos, California · 13365 days ago · 1 km deep · 100 km away
  6. 1.815 km ESE of East Foothills, California · 13364 days ago · 2 km deep · 25 km away
  7. 1.86 km NNE of Corralitos, California · 13364 days ago · 7 km deep · 50 km away
  8. 1.57 km SW of Monte Sereno, California · 13363 days ago · 13 km deep · 39 km away
  9. 2.32 km SSW of Saratoga, California · 13362 days ago · 8 km deep · 33 km away
  10. 1.70 km ENE of Millbrae, California · 13362 days ago · 12 km deep · 50 km away
  11. 1.71 km ENE of Millbrae, California · 13361 days ago · 11 km deep · 50 km away
  12. 1.54 km SE of Tres Pinos, California · 13361 days ago · 6 km deep · 95 km away
  13. 2.15 km SSW of Gilroy, California · 13361 days ago · 3 km deep · 63 km away
  14. 1.89 km NNE of Day Valley, California · 13361 days ago · 4 km deep · 42 km away
  15. 1.86 km NE of Amesti, California · 13361 days ago · 13 km deep · 54 km away
  16. 1.93 km W of Lexington Hills, California · 13360 days ago · 11 km deep · 40 km away
  17. 2.015 km N of Morgan Hill, California · 13359 days ago · 2 km deep · 29 km away
  18. 2.31 km WSW of Spreckels, California · 13359 days ago · 5 km deep · 99 km away
  19. 2.36 km W of Davenport, California · 13359 days ago · 3 km deep · 66 km away
  20. 1.6Northern California · 13358 days ago · 13 km deep · 39 km away
  21. 2.17 km SW of Monte Sereno, California · 13357 days ago · 14 km deep · 39 km away
  22. 1.63 km S of Lexington Hills, California · 13357 days ago · 13 km deep · 42 km away
  23. 1.74 km NW of Day Valley, California · 13356 days ago · 14 km deep · 47 km away
  24. 2.010 km WSW of Morgan Hill, California · 13356 days ago · 2 km deep · 44 km away
  25. 2.15 km ESE of Interlaken, California · 13356 days ago · 5 km deep · 63 km away
  26. 1.94 km ENE of Corralitos, California · 13356 days ago · 12 km deep · 55 km away
  27. 1.63 km SSW of Lexington Hills, California · 13356 days ago · 13 km deep · 42 km away
  28. 2.415 km E of Seven Trees, California · 13356 days ago · 6 km deep · 27 km away
  29. 1.56 km WSW of Gilroy, California · 13356 days ago · 4 km deep · 59 km away
  30. 1.610 km S of Tres Pinos, California · 13355 days ago · 4 km deep · 98 km away
  31. 1.52 km NW of Lexington Hills, California · 13355 days ago · 8 km deep · 38 km away
  32. 1.76 km ENE of Day Valley, California · 13355 days ago · 5 km deep · 49 km away
  33. 1.65 km S of La Selva Beach, California · 13354 days ago · 4 km deep · 67 km away
  34. 2.46 km S of Gilroy, California · 13354 days ago · 6 km deep · 65 km away
  35. 3.33 km SW of Hollister, California · 13354 days ago · 8 km deep · 82 km away
  36. 2.43 km SSE of Piedmont, California · 13353 days ago · 9 km deep · 48 km away
  37. 2.113 km ENE of East Foothills, California · 13353 days ago · 6 km deep · 14 km away
  38. 1.79 km S of Tres Pinos, California · 13353 days ago · 4 km deep · 98 km away
  39. 2.65 km SSE of Lexington Hills, California · 13352 days ago · 10 km deep · 43 km away
  40. 1.86 km N of Interlaken, California · 13350 days ago · 8 km deep · 55 km away
  41. 1.9Northern California · 13350 days ago · 3 km deep · 36 km away
  42. 2.31 km E of Aromas, California · 13349 days ago · 8 km deep · 69 km away
  43. 2.32 km SW of Cambrian Park, California · 13349 days ago · 0 km deep · 30 km away
  44. 2.25 km WNW of Day Valley, California · 13349 days ago · 16 km deep · 49 km away
  45. 3.01 km NNW of North Gate, California · 13348 days ago · 14 km deep · 50 km away
  46. 1.66 km ENE of Interlaken, California · 13348 days ago · 3 km deep · 59 km away
  47. 1.611 km ESE of Livermore, California · 13348 days ago · 5 km deep · 23 km away
  48. 2.02 km NW of North Gate, California · 13348 days ago · 14 km deep · 51 km away
  49. 1.91 km NNW of North Gate, California · 13348 days ago · 13 km deep · 50 km away
  50. 1.63 km ENE of Corralitos, California · 13348 days ago · 15 km deep · 55 km away
  51. 2.83 km NNW of Hollister, California · 13347 days ago · 7 km deep · 77 km away
  52. 2.41 km NNW of North Gate, California · 13347 days ago · 15 km deep · 50 km away
  53. 1.66 km S of Tres Pinos, California · 13345 days ago · 9 km deep · 96 km away
  54. 2.13 km ESE of Pittsburg, California · 13345 days ago · 0 km deep · 58 km away
  55. 1.59 km SW of Napa, California · 13345 days ago · 9 km deep · 95 km away
  56. 1.85 km ESE of Interlaken, California · 13345 days ago · 11 km deep · 64 km away
  57. 1.615 km SSE of Livermore, California · 13345 days ago · 7 km deep · 16 km away
  58. 2.18 km SSW of Tres Pinos, California · 13344 days ago · 3 km deep · 96 km away
  59. 2.36 km SW of Monte Sereno, California · 13344 days ago · 14 km deep · 38 km away
  60. 1.617 km NW of Pacific Grove, California · 13344 days ago · 11 km deep · 86 km away

The first 60 of 179.

Before

  1. 1.66 km N of Day Valley, California · 13368 days ago · 3 km deep · 44 km away
  2. 1.93 km E of Day Valley, California · 13368 days ago · 13 km deep · 51 km away
  3. 3.014 km N of Morgan Hill, California · 13368 days ago · 7 km deep · 31 km away
  4. 1.64 km E of Interlaken, California · 13369 days ago · 10 km deep · 62 km away
  5. 2.45 km S of Lexington Hills, California · 13370 days ago · 14 km deep · 44 km away
  6. 3.06 km N of Day Valley, California · 13370 days ago · 4 km deep · 44 km away
  7. 2.314 km E of Seven Trees, California · 13370 days ago · 8 km deep · 24 km away
  8. 1.65 km NNE of Tres Pinos, California · 13371 days ago · 4 km deep · 86 km away
  9. 2.06 km S of Tres Pinos, California · 13372 days ago · 9 km deep · 96 km away
  10. 1.93 km ESE of Berkeley, California · 13373 days ago · 10 km deep · 55 km away
  11. 2.78 km ENE of San Martin, California · 13373 days ago · 7 km deep · 50 km away
  12. 1.62 km NE of Corralitos, California · 13373 days ago · 14 km deep · 54 km away
  13. 1.88 km ENE of Morgan Hill, California · 13373 days ago · 2 km deep · 44 km away
  14. 2.2Central California · 13373 days ago · 5 km deep · 99 km away
  15. 1.90 km SW of Tres Pinos, California · 13374 days ago · 6 km deep · 90 km away
  16. 1.69 km SSE of Davenport, California · 13375 days ago · 11 km deep · 69 km away
  17. 1.61 km ENE of Interlaken, California · 13375 days ago · 12 km deep · 60 km away
  18. 2.34 km NNW of Aromas, California · 13375 days ago · 11 km deep · 65 km away
  19. 1.93 km NNW of Corralitos, California · 13376 days ago · 15 km deep · 52 km away
  20. 2.04 km WNW of San Juan Bautista, California · 13376 days ago · 6 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc153308. Read Sun, Oct 4, 2026, 6:21 AM UTC.