California earthquakes

M1.9 earthquake 16 km E of Seven Trees, California

A magnitude 1.9 earthquake struck 16 km E of Seven Trees, California on Sat, Sep 28, 1985, 1:02 AM PDT (08:02 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M2.8 4 km NE of San Leandro, California. This one was a foreshock.

Seven Trees 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), micro
Local time
UTC
1985-09-28 08:02:15 UTC
Depth
5.5 km (3.4 mi), shallow
Epicenter
37.277° N, 121.657° 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, 0.3 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
54°
Stations used
57

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 125 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 1.616 km E of Seven Trees, California · 14970 days ago · 5 km deep · 0 km away
  2. 2.84 km NE of San Leandro, California · 14969 days ago · 11 km deep · 67 km away
  3. 1.76 km NE of East Foothills, California · 14968 days ago · 9 km deep · 19 km away
  4. 2.07 km NNE of Interlaken, California · 14968 days ago · 7 km deep · 29 km away
  5. 2.622 km NNE of Soledad, California · 14967 days ago · 6 km deep · 86 km away
  6. 3.222 km NNE of Soledad, California · 14967 days ago · 7 km deep · 86 km away
  7. 1.622 km NNE of Soledad, California · 14967 days ago · 6 km deep · 86 km away
  8. 1.922 km NNE of Soledad, California · 14967 days ago · 6 km deep · 85 km away
  9. 1.615 km N of Morgan Hill, California · 14967 days ago · 8 km deep · 1 km away
  10. 2.311 km SSE of Tres Pinos, California · 14967 days ago · 4 km deep · 74 km away
  11. 1.822 km NNE of Soledad, California · 14967 days ago · 6 km deep · 86 km away
  12. 2.813 km N of Morgan Hill, California · 14967 days ago · 4 km deep · 4 km away
  13. 1.831 km WSW of Davenport, California · 14966 days ago · 3 km deep · 87 km away
  14. 1.511 km SSW of Brentwood, California · 14965 days ago · 12 km deep · 64 km away
  15. 2.38 km NE of San Juan Bautista, California · 14965 days ago · 5 km deep · 45 km away
  16. 1.68 km NE of San Martin, California · 14963 days ago · 6 km deep · 19 km away
  17. 2.0Central California · 14963 days ago · 2 km deep · 98 km away
  18. 1.716 km NE of East Foothills, California · 14962 days ago · 8 km deep · 23 km away
  19. 3.07 km N of Interlaken, California · 14962 days ago · 8 km deep · 29 km away
  20. 2.321 km NE of Soledad, California · 14962 days ago · 6 km deep · 87 km away
  21. 1.68 km NNE of Interlaken, California · 14962 days ago · 8 km deep · 29 km away
  22. 2.223 km ENE of Soledad, California · 14961 days ago · 2 km deep · 98 km away
  23. 2.12 km SSW of San Juan Bautista, California · 14961 days ago · 6 km deep · 51 km away
  24. 2.312 km N of Morgan Hill, California · 14961 days ago · 3 km deep · 4 km away
  25. 1.62 km ENE of Carmel Valley Village, California · 14961 days ago · 8 km deep · 85 km away
  26. 1.712 km WSW of Byron, California · 14960 days ago · 10 km deep · 59 km away
  27. 3.013 km N of Morgan Hill, California · 14960 days ago · 5 km deep · 3 km away
  28. 1.911 km SSE of Tres Pinos, California · 14960 days ago · 4 km deep · 74 km away
  29. 1.914 km SSE of Tres Pinos, California · 14960 days ago · 7 km deep · 76 km away
  30. 2.89 km NE of Gilroy, California · 14960 days ago · 9 km deep · 29 km away
  31. 1.83 km N of Ashland, California · 14959 days ago · 4 km deep · 64 km away
  32. 2.216 km NE of East Foothills, California · 14958 days ago · 8 km deep · 22 km away
  33. 1.88 km ENE of Morgan Hill, California · 14957 days ago · 2 km deep · 16 km away
  34. 1.77 km NNE of San Martin, California · 14956 days ago · 4 km deep · 17 km away
  35. 1.615 km WNW of Davenport, California · 14956 days ago · 6 km deep · 66 km away
  36. 1.80 km WSW of Concord, California · 14955 days ago · 19 km deep · 85 km away
  37. 1.919 km SSE of Tres Pinos, California · 14954 days ago · 5 km deep · 81 km away
  38. 1.516 km E of Seven Trees, California · 14953 days ago · 6 km deep · 0 km away
  39. 1.73 km N of Piedmont, California · 14951 days ago · 12 km deep · 82 km away
  40. 1.88 km ENE of Morgan Hill, California · 14950 days ago · 1 km deep · 16 km away
  41. 1.814 km E of Seven Trees, California · 14948 days ago · 3 km deep · 2 km away
  42. 1.812 km ESE of Gilroy, California · 14948 days ago · 5 km deep · 40 km away
  43. 1.93 km ESE of Berkeley, California · 14948 days ago · 7 km deep · 83 km away
  44. 1.59 km NNE of San Martin, California · 14946 days ago · 5 km deep · 16 km away
  45. 1.921 km NE of Soledad, California · 14946 days ago · 3 km deep · 91 km away
  46. 1.711 km S of Pescadero, California · 14944 days ago · 15 km deep · 65 km away
  47. 1.66 km SSE of Gilroy, California · 14942 days ago · 3 km deep · 38 km away
  48. 2.52 km W of Concord, California · 14942 days ago · 13 km deep · 85 km away
  49. 3.43 km WSW of San Juan Bautista, California · 14941 days ago · 9 km deep · 50 km away
  50. 1.52 km SW of San Juan Bautista, California · 14941 days ago · 8 km deep · 50 km away
  51. 2.114 km N of Morgan Hill, California · 14940 days ago · 3 km deep · 2 km away
  52. 1.914 km S of Tres Pinos, California · 14940 days ago · 8 km deep · 76 km away
  53. 3.321 km NE of Soledad, California · 14940 days ago · 7 km deep · 92 km away
  54. 1.614 km S of Tres Pinos, California · 14940 days ago · 9 km deep · 76 km away
  55. 1.64 km SSW of Lexington Hills, California · 14940 days ago · 0 km deep · 34 km away
  56. 1.68 km NNE of East Foothills, California · 14939 days ago · 9 km deep · 23 km away
  57. 1.621 km NE of Soledad, California · 14939 days ago · 6 km deep · 92 km away
  58. 1.612 km E of East Foothills, California · 14937 days ago · 5 km deep · 10 km away
  59. 1.821 km NE of Soledad, California · 14937 days ago · 7 km deep · 88 km away
  60. 1.521 km NE of Soledad, California · 14936 days ago · 6 km deep · 92 km away

The first 60 of 125.

Before

  1. 1.62 km E of Rodeo, California · 14970 days ago · 4 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc55951. Read Tue, Sep 22, 2026, 8:27 PM UTC.