California earthquakes

M1.6 earthquake 15 km E of Seven Trees, California

A magnitude 1.6 earthquake struck 15 km E of Seven Trees, California on Fri, Aug 9, 1985, 4:45 AM PDT (11:45 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.7 Central 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
1.6 (md), micro
Local time
UTC
1985-08-09 11:45:02 UTC
Depth
5.2 km (3.3 mi), shallow
Epicenter
37.290° N, 121.667° 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
±0.09
Depth from
From location
Station coverage gap
61°
Stations used
37

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 135 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.65 km ENE of Interlaken, California · 15019 days ago · 11 km deep · 36 km away
  2. 2.7Central California · 15018 days ago · 4 km deep · 96 km away
  3. 1.621 km NE of Soledad, California · 15017 days ago · 5 km deep · 96 km away
  4. 1.92 km SW of West Menlo Park, California · 15017 days ago · 4 km deep · 51 km away
  5. 1.921 km NE of Soledad, California · 15017 days ago · 4 km deep · 96 km away
  6. 1.55 km E of Interlaken, California · 15016 days ago · 10 km deep · 37 km away
  7. 1.55 km E of Interlaken, California · 15016 days ago · 11 km deep · 37 km away
  8. 1.75 km E of Interlaken, California · 15016 days ago · 11 km deep · 37 km away
  9. 1.85 km E of Interlaken, California · 15016 days ago · 10 km deep · 37 km away
  10. 1.75 km E of Interlaken, California · 15015 days ago · 11 km deep · 37 km away
  11. 1.87 km WNW of Del Monte Forest, California · 15015 days ago · 8 km deep · 80 km away
  12. 3.12 km N of Piedmont, California · 15015 days ago · 5 km deep · 79 km away
  13. 2.03 km N of Hollister, California · 15015 days ago · 3 km deep · 51 km away
  14. 1.621 km NE of Soledad, California · 15015 days ago · 5 km deep · 95 km away
  15. 2.12 km ENE of Berkeley, California · 15014 days ago · 8 km deep · 83 km away
  16. 1.614 km N of Morgan Hill, California · 15013 days ago · 6 km deep · 4 km away
  17. 2.911 km NNE of Morgan Hill, California · 15012 days ago · 5 km deep · 7 km away
  18. 1.815 km E of Seven Trees, California · 15012 days ago · 5 km deep · 1 km away
  19. 1.512 km N of Morgan Hill, California · 15012 days ago · 7 km deep · 5 km away
  20. 3.18 km ENE of San Martin, California · 15011 days ago · 8 km deep · 22 km away
  21. 1.92 km SW of Blackhawk, California · 15011 days ago · 15 km deep · 62 km away
  22. 2.814 km N of Morgan Hill, California · 15011 days ago · 6 km deep · 4 km away
  23. 1.614 km N of Morgan Hill, California · 15011 days ago · 5 km deep · 4 km away
  24. 2.52 km N of Piedmont, California · 15009 days ago · 5 km deep · 79 km away
  25. 2.421 km NE of Soledad, California · 15008 days ago · 4 km deep · 95 km away
  26. 2.321 km NE of Soledad, California · 15008 days ago · 5 km deep · 95 km away
  27. 2.923 km SW of Pescadero, California · 15008 days ago · 0 km deep · 80 km away
  28. 1.59 km E of San Martin, California · 15008 days ago · 8 km deep · 27 km away
  29. 1.68 km SW of Tres Pinos, California · 15006 days ago · 6 km deep · 67 km away
  30. 2.09 km SW of Tres Pinos, California · 15006 days ago · 6 km deep · 68 km away
  31. 1.89 km NNW of Hollister, California · 15006 days ago · 0 km deep · 44 km away
  32. 3.22 km W of San Juan Bautista, California · 15005 days ago · 5 km deep · 50 km away
  33. 2.62 km W of San Juan Bautista, California · 15005 days ago · 4 km deep · 51 km away
  34. 2.410 km ESE of Gilroy, California · 15005 days ago · 4 km deep · 40 km away
  35. 1.611 km ESE of East Foothills, California · 15004 days ago · 7 km deep · 6 km away
  36. 2.414 km E of Seven Trees, California · 15004 days ago · 3 km deep · 1 km away
  37. 2.55 km SW of Gilroy, California · 15004 days ago · 4 km deep · 36 km away
  38. 2.222 km NE of Soledad, California · 15003 days ago · 2 km deep · 96 km away
  39. 1.64 km SSE of North Gate, California · 15002 days ago · 7 km deep · 70 km away
  40. 1.621 km NE of Soledad, California · 15002 days ago · 2 km deep · 90 km away
  41. 1.617 km SSE of Tres Pinos, California · 15001 days ago · 6 km deep · 81 km away
  42. 1.98 km NW of Broadmoor, California · 15001 days ago · 6 km deep · 92 km away
  43. 2.212 km ESE of East Foothills, California · 15000 days ago · 6 km deep · 4 km away
  44. 2.312 km ESE of East Foothills, California · 15000 days ago · 8 km deep · 4 km away
  45. 1.614 km E of Seven Trees, California · 15000 days ago · 3 km deep · 0 km away
  46. 2.29 km E of Sunol, California · 14999 days ago · 15 km deep · 35 km away
  47. 1.77 km ENE of Interlaken, California · 14999 days ago · 3 km deep · 34 km away
  48. 2.515 km E of Seven Trees, California · 14999 days ago · 6 km deep · 0 km away
  49. 1.911 km ESE of East Foothills, California · 14999 days ago · 7 km deep · 6 km away
  50. 1.611 km ESE of East Foothills, California · 14999 days ago · 7 km deep · 6 km away
  51. 1.93 km ENE of San Leandro, California · 14998 days ago · 6 km deep · 64 km away
  52. 1.622 km NE of Soledad, California · 14996 days ago · 5 km deep · 92 km away
  53. 2.010 km NNW of Hollister, California · 14996 days ago · 0 km deep · 44 km away
  54. 2.08 km ENE of Gilroy, California · 14994 days ago · 8 km deep · 32 km away
  55. 1.62 km SSE of Concord, California · 14994 days ago · 11 km deep · 80 km away
  56. 3.14 km NE of San Leandro, California · 14994 days ago · 11 km deep · 65 km away
  57. 2.04 km NE of San Leandro, California · 14994 days ago · 10 km deep · 65 km away
  58. 2.122 km SW of Volta, California · 14993 days ago · 1 km deep · 60 km away
  59. 1.64 km NE of San Leandro, California · 14993 days ago · 10 km deep · 65 km away
  60. 1.910 km ESE of East Foothills, California · 14992 days ago · 7 km deep · 7 km away

The first 60 of 135.

Before

  1. 1.77 km NNE of East Foothills, California · 15021 days ago · 5 km deep · 19 km away
  2. 1.613 km SSE of Livermore, California · 15021 days ago · 5 km deep · 32 km away
  3. 2.31 km NNW of Pleasant Hill, California · 15021 days ago · 9 km deep · 82 km away
  4. 1.921 km NE of Morgan Hill, California · 15022 days ago · 7 km deep · 14 km away
  5. 2.28 km ENE of Morgan Hill, California · 15022 days ago · 2 km deep · 17 km away
  6. 2.19 km SSW of Ridgemark, California · 15022 days ago · 6 km deep · 66 km away
  7. 2.421 km NE of Soledad, California · 15022 days ago · 6 km deep · 95 km away
  8. 1.62 km SSW of Portola Valley, California · 15024 days ago · 8 km deep · 52 km away
  9. 2.02 km SSW of Portola Valley, California · 15024 days ago · 8 km deep · 52 km away
  10. 1.921 km NE of Soledad, California · 15024 days ago · 6 km deep · 93 km away
  11. 2.52 km E of Berkeley, California · 15025 days ago · 9 km deep · 82 km away
  12. 1.521 km NNE of Soledad, California · 15025 days ago · 8 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc52580. Read Tue, Sep 22, 2026, 9:37 PM UTC.