California earthquakes

M1.5 earthquake 16 km E of Seven Trees, California

A magnitude 1.5 earthquake struck 16 km E of Seven Trees, California on Sun, Mar 31, 1985, 2:28 AM PST (10:28 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M1.6 5 km NE of East Foothills, 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.

Open the live map with earthquakes

The earthquake

Magnitude
1.5 (md), micro
Local time
UTC
1985-03-31 10:28:32 UTC
Depth
5.4 km (3.3 mi), shallow
Epicenter
37.278° N, 121.654° 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, 0.4 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
33°
Stations used
39

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 139 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.65 km NE of East Foothills, California · 15149 days ago · 5 km deep · 18 km away
  2. 2.514 km N of Morgan Hill, California · 15149 days ago · 4 km deep · 2 km away
  3. 1.67 km ENE of San Martin, California · 15149 days ago · 3 km deep · 22 km away
  4. 2.12 km ENE of Berkeley, California · 15149 days ago · 9 km deep · 85 km away
  5. 1.627 km E of Tres Pinos, California · 15148 days ago · 4 km deep · 81 km away
  6. 1.77 km ENE of San Martin, California · 15148 days ago · 3 km deep · 22 km away
  7. 1.71 km N of Mountain View, California · 15148 days ago · 6 km deep · 40 km away
  8. 1.710 km NNE of Morgan Hill, California · 15148 days ago · 3 km deep · 8 km away
  9. 1.613 km N of Morgan Hill, California · 15147 days ago · 3 km deep · 4 km away
  10. 2.37 km ENE of San Martin, California · 15146 days ago · 3 km deep · 22 km away
  11. 1.710 km SW of Ridgemark, California · 15146 days ago · 8 km deep · 61 km away
  12. 2.516 km N of Morgan Hill, California · 15145 days ago · 8 km deep · 1 km away
  13. 1.814 km N of Morgan Hill, California · 15145 days ago · 5 km deep · 2 km away
  14. 1.924 km ENE of Soledad, California · 15144 days ago · 8 km deep · 98 km away
  15. 2.9Central California · 15144 days ago · 7 km deep · 91 km away
  16. 3.326 km NE of Soledad, California · 15144 days ago · 8 km deep · 91 km away
  17. 2.011 km NNW of Hollister, California · 15143 days ago · 7 km deep · 41 km away
  18. 1.617 km ENE of East Foothills, California · 15143 days ago · 5 km deep · 16 km away
  19. 2.412 km NNE of East Foothills, California · 15142 days ago · 8 km deep · 24 km away
  20. 2.722 km NE of Soledad, California · 15141 days ago · 2 km deep · 87 km away
  21. 2.46 km E of Fremont, California · 15141 days ago · 9 km deep · 38 km away
  22. 1.86 km SSW of Sunol, California · 15141 days ago · 9 km deep · 38 km away
  23. 1.65 km E of Fremont, California · 15141 days ago · 9 km deep · 38 km away
  24. 1.75 km E of Fremont, California · 15141 days ago · 10 km deep · 38 km away
  25. 1.66 km E of Fremont, California · 15141 days ago · 10 km deep · 38 km away
  26. 3.112 km N of Morgan Hill, California · 15141 days ago · 5 km deep · 5 km away
  27. 1.717 km S of Davenport, California · 15141 days ago · 3 km deep · 68 km away
  28. 2.412 km N of Morgan Hill, California · 15139 days ago · 5 km deep · 5 km away
  29. 1.711 km S of Tres Pinos, California · 15139 days ago · 10 km deep · 73 km away
  30. 1.813 km N of Morgan Hill, California · 15139 days ago · 4 km deep · 4 km away
  31. 1.814 km N of Morgan Hill, California · 15139 days ago · 6 km deep · 2 km away
  32. 1.529 km SSW of Los Banos, California · 15139 days ago · 2 km deep · 84 km away
  33. 1.64 km W of South Dos Palos, California · 15139 days ago · 10 km deep · 91 km away
  34. 2.44 km WNW of Saratoga, California · 15137 days ago · 4 km deep · 37 km away
  35. 2.04 km SW of Cupertino, California · 15137 days ago · 5 km deep · 36 km away
  36. 1.927 km E of Tres Pinos, California · 15136 days ago · 4 km deep · 81 km away
  37. 2.126 km NE of Soledad, California · 15135 days ago · 8 km deep · 94 km away
  38. 1.99 km SSW of Ridgemark, California · 15134 days ago · 7 km deep · 64 km away
  39. 2.419 km SSW of Santa Cruz, California · 15134 days ago · 3 km deep · 65 km away
  40. 1.914 km E of Seven Trees, California · 15134 days ago · 5 km deep · 3 km away
  41. 2.03 km ESE of Aromas, California · 15133 days ago · 7 km deep · 45 km away
  42. 2.4Northern California · 15133 days ago · 8 km deep · 32 km away
  43. 2.68 km ENE of Morgan Hill, California · 15133 days ago · 3 km deep · 15 km away
  44. 1.816 km E of Seven Trees, California · 15131 days ago · 8 km deep · 0 km away
  45. 1.68 km ESE of East Foothills, California · 15131 days ago · 7 km deep · 11 km away
  46. 1.79 km ESE of East Foothills, California · 15131 days ago · 7 km deep · 10 km away
  47. 2.59 km S of Tres Pinos, California · 15130 days ago · 2 km deep · 70 km away
  48. 2.39 km S of Tres Pinos, California · 15130 days ago · 3 km deep · 70 km away
  49. 1.516 km SSE of Tres Pinos, California · 15130 days ago · 5 km deep · 78 km away
  50. 1.74 km SE of Portola Valley, California · 15130 days ago · 10 km deep · 50 km away
  51. 2.010 km S of Tres Pinos, California · 15130 days ago · 3 km deep · 71 km away
  52. 2.23 km ESE of Berkeley, California · 15130 days ago · 8 km deep · 83 km away
  53. 2.713 km ESE of Alum Rock, California · 15129 days ago · 7 km deep · 5 km away
  54. 2.318 km SSE of Tres Pinos, California · 15129 days ago · 6 km deep · 80 km away
  55. 3.08 km NE of San Martin, California · 15128 days ago · 7 km deep · 20 km away
  56. 1.97 km NW of Pescadero, California · 15128 days ago · 11 km deep · 69 km away
  57. 1.98 km ENE of San Martin, California · 15128 days ago · 7 km deep · 22 km away
  58. 2.923 km ENE of Soledad, California · 15128 days ago · 4 km deep · 99 km away
  59. 2.58 km ENE of San Martin, California · 15128 days ago · 7 km deep · 20 km away
  60. 3.08 km ENE of San Martin, California · 15127 days ago · 7 km deep · 20 km away

The first 60 of 139.

Before

  1. 3.216 km E of Seven Trees, California · 15151 days ago · 6 km deep · 0 km away
  2. 1.98 km ENE of Morgan Hill, California · 15152 days ago · 3 km deep · 15 km away
  3. 2.321 km NE of Soledad, California · 15152 days ago · 4 km deep · 94 km away
  4. 1.913 km S of Tres Pinos, California · 15153 days ago · 5 km deep · 75 km away
  5. 1.515 km E of East Foothills, California · 15153 days ago · 8 km deep · 14 km away
  6. 1.615 km N of Morgan Hill, California · 15155 days ago · 6 km deep · 1 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc45026. Read Tue, Sep 22, 2026, 8:44 PM UTC.