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 Sat, Jan 3, 1981, 6:18 AM PST (14:18 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M1.9 25 km NE of Soledad, 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
1981-01-03 14:18:43 UTC
Depth
1.6 km (1.0 mi), shallow
Epicenter
37.288° N, 121.669° 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 0.3 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
92°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 180 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.925 km NE of Soledad, California · 16681 days ago · 8 km deep · 95 km away
  2. 2.021 km SW of Diablo Grande, California · 16680 days ago · 34 km deep · 21 km away
  3. 1.68 km NE of Gilroy, California · 16680 days ago · 6 km deep · 31 km away
  4. 1.71 km S of Discovery Bay, California · 16679 days ago · 11 km deep · 68 km away
  5. 1.623 km NE of Soledad, California · 16679 days ago · 5 km deep · 93 km away
  6. 2.47 km SW of Brentwood, California · 16678 days ago · 16 km deep · 66 km away
  7. 2.010 km NNE of Livermore, California · 16678 days ago · 12 km deep · 53 km away
  8. 1.812 km ESE of East Foothills, California · 16678 days ago · 4 km deep · 4 km away
  9. 1.59 km SSW of Tres Pinos, California · 16677 days ago · 3 km deep · 70 km away
  10. 1.66 km NNE of Interlaken, California · 16677 days ago · 7 km deep · 32 km away
  11. 1.92 km N of Monte Sereno, California · 16677 days ago · 4 km deep · 29 km away
  12. 1.810 km SW of Brentwood, California · 16677 days ago · 14 km deep · 63 km away
  13. 1.54 km W of Gonzales, California · 16676 days ago · 7 km deep · 89 km away
  14. 2.014 km SSE of Livermore, California · 16676 days ago · 2 km deep · 31 km away
  15. 2.61 km N of Pleasant Hill, California · 16675 days ago · 9 km deep · 82 km away
  16. 1.610 km ENE of Seven Trees, California · 16675 days ago · 3 km deep · 6 km away
  17. 1.72 km N of Ashland, California · 16675 days ago · 6 km deep · 61 km away
  18. 1.58 km ENE of Gilroy, California · 16675 days ago · 6 km deep · 31 km away
  19. 1.723 km NE of Soledad, California · 16675 days ago · 8 km deep · 95 km away
  20. 2.06 km ENE of San Martin, California · 16675 days ago · 5 km deep · 24 km away
  21. 1.86 km E of San Martin, California · 16675 days ago · 5 km deep · 24 km away
  22. 1.612 km S of Tres Pinos, California · 16674 days ago · 4 km deep · 75 km away
  23. 2.116 km E of East Foothills, California · 16674 days ago · 7 km deep · 12 km away
  24. 1.922 km NE of Soledad, California · 16674 days ago · 2 km deep · 96 km away
  25. 4.14 km SE of Aromas, California · 16674 days ago · 7 km deep · 48 km away
  26. 2.64 km ESE of Aromas, California · 16674 days ago · 6 km deep · 48 km away
  27. 2.34 km SE of Aromas, California · 16674 days ago · 6 km deep · 48 km away
  28. 2.04 km ESE of Aromas, California · 16674 days ago · 7 km deep · 47 km away
  29. 2.84 km ESE of Aromas, California · 16674 days ago · 7 km deep · 47 km away
  30. 2.34 km SE of Aromas, California · 16674 days ago · 6 km deep · 47 km away
  31. 2.63 km SE of Aromas, California · 16674 days ago · 7 km deep · 47 km away
  32. 1.69 km NNE of Morgan Hill, California · 16673 days ago · 4 km deep · 11 km away
  33. 1.84 km ESE of Aromas, California · 16673 days ago · 7 km deep · 47 km away
  34. 2.23 km ESE of Aromas, California · 16673 days ago · 7 km deep · 46 km away
  35. 2.94 km SE of Aromas, California · 16673 days ago · 7 km deep · 48 km away
  36. 2.022 km NNE of Soledad, California · 16672 days ago · 8 km deep · 86 km away
  37. 2.03 km SSW of Davenport, California · 16672 days ago · 6 km deep · 59 km away
  38. 2.24 km SE of Aromas, California · 16671 days ago · 7 km deep · 47 km away
  39. 1.79 km ENE of Morgan Hill, California · 16671 days ago · 6 km deep · 17 km away
  40. 1.73 km ESE of Aromas, California · 16671 days ago · 7 km deep · 46 km away
  41. 2.49 km ENE of Morgan Hill, California · 16671 days ago · 5 km deep · 17 km away
  42. 1.812 km S of Tres Pinos, California · 16670 days ago · 4 km deep · 76 km away
  43. 3.49 km ENE of Morgan Hill, California · 16670 days ago · 6 km deep · 17 km away
  44. 2.23 km ESE of Aromas, California · 16670 days ago · 8 km deep · 46 km away
  45. 2.023 km NE of Soledad, California · 16670 days ago · 8 km deep · 95 km away
  46. 1.79 km SW of Ripon, California · 16670 days ago · 5 km deep · 60 km away
  47. 2.010 km SW of Brentwood, California · 16669 days ago · 14 km deep · 63 km away
  48. 1.723 km SE of Tres Pinos, California · 16669 days ago · 8 km deep · 87 km away
  49. 1.915 km SSE of Livermore, California · 16669 days ago · 3 km deep · 31 km away
  50. 1.921 km SE of Tres Pinos, California · 16669 days ago · 1 km deep · 83 km away
  51. 2.423 km NE of Soledad, California · 16668 days ago · 8 km deep · 95 km away
  52. 2.04 km ESE of Aromas, California · 16668 days ago · 6 km deep · 47 km away
  53. 2.4Central California · 16668 days ago · 3 km deep · 36 km away
  54. 1.511 km E of Blackhawk, California · 16668 days ago · 5 km deep · 62 km away
  55. 1.54 km NNE of Morgan Hill, California · 16667 days ago · 5 km deep · 14 km away
  56. 2.75 km ESE of Aromas, California · 16666 days ago · 6 km deep · 48 km away
  57. 1.715 km SSE of Tres Pinos, California · 16666 days ago · 3 km deep · 79 km away
  58. 2.313 km S of Tres Pinos, California · 16666 days ago · 5 km deep · 77 km away
  59. 1.63 km WNW of San Juan Bautista, California · 16665 days ago · 1 km deep · 49 km away
  60. 1.57 km E of East Foothills, California · 16665 days ago · 9 km deep · 13 km away

The first 60 of 180.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1058837. Read Tue, Sep 22, 2026, 12:12 PM UTC.