California earthquakes

M1.6 earthquake 4 km S of Greenfield, California

A magnitude 1.6 earthquake struck 4 km S of Greenfield, California on Fri, Feb 22, 1985, 5:43 PM PST (01:43 UTC), 2 km (2 mi) below the surface.

A larger quake followed: M3.7 10 km NE of Coalinga, California. This one was a foreshock.

Greenfield 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, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1985-02-23 01:43:44 UTC
Depth
2.5 km (1.5 mi), shallow
Epicenter
36.278° N, 121.243° 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 5.2 km horizontally, 6.4 km in depth
Depth from
From location
Station coverage gap
215°, poorly surrounded by stations
Stations used
3

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 173 in the 60 days after this one and 99 in the 30 days before it.

After

  1. 1.715 km NNW of Big Sur, California · 15196 days ago · 2 km deep · 58 km away
  2. 3.514 km SW of Carmel Valley Village, California · 15194 days ago · 8 km deep · 58 km away
  3. 1.77 km SW of Carmel Valley Village, California · 15194 days ago · 2 km deep · 55 km away
  4. 1.615 km NW of Big Sur, California · 15194 days ago · 11 km deep · 62 km away
  5. 2.08 km SSE of San Juan Bautista, California · 15194 days ago · 10 km deep · 60 km away
  6. 1.624 km NE of King City, California · 15193 days ago · 5 km deep · 28 km away
  7. 1.824 km WNW of Coalinga, California · 15193 days ago · 4 km deep · 57 km away
  8. 1.518 km NW of Parkfield, California · 15192 days ago · 5 km deep · 67 km away
  9. 1.79 km E of San Martin, California · 15192 days ago · 8 km deep · 93 km away
  10. 2.224 km ENE of Greenfield, California · 15192 days ago · 5 km deep · 27 km away
  11. 2.324 km NE of Greenfield, California · 15191 days ago · 7 km deep · 28 km away
  12. 1.816 km NNW of Coalinga, California · 15190 days ago · 7 km deep · 74 km away
  13. 1.611 km ENE of Coalinga, California · 15190 days ago · 10 km deep · 91 km away
  14. 1.611 km NNE of Coalinga, California · 15189 days ago · 9 km deep · 82 km away
  15. 1.710 km NE of Coalinga, California · 15189 days ago · 12 km deep · 86 km away
  16. 1.910 km N of Coalinga, California · 15189 days ago · 10 km deep · 79 km away
  17. 1.78 km NNE of Coalinga, California · 15189 days ago · 11 km deep · 82 km away
  18. 2.124 km ENE of Greenfield, California · 15186 days ago · 5 km deep · 27 km away
  19. 1.721 km NE of Soledad, California · 15186 days ago · 7 km deep · 34 km away
  20. 2.615 km N of Coalinga, California · 15185 days ago · 8 km deep · 81 km away
  21. 1.6Central California · 15185 days ago · 9 km deep · 80 km away
  22. 2.09 km ENE of Coalinga, California · 15185 days ago · 7 km deep · 88 km away
  23. 2.210 km NE of Coalinga, California · 15183 days ago · 10 km deep · 88 km away
  24. 1.817 km N of Coalinga, California · 15183 days ago · 7 km deep · 77 km away
  25. 1.58 km NE of San Martin, California · 15183 days ago · 7 km deep · 99 km away
  26. 1.611 km NNW of Coalinga, California · 15183 days ago · 6 km deep · 75 km away
  27. 1.824 km ENE of Greenfield, California · 15182 days ago · 5 km deep · 27 km away
  28. 3.022 km NE of San Ardo, California · 15181 days ago · 9 km deep · 47 km away
  29. 2.923 km NE of San Ardo, California · 15181 days ago · 9 km deep · 47 km away
  30. 1.78 km WNW of Avenal, California · 15181 days ago · 9 km deep · 96 km away
  31. 2.513 km NNW of Big Sur, California · 15181 days ago · 0 km deep · 56 km away
  32. 1.924 km NE of Greenfield, California · 15181 days ago · 5 km deep · 28 km away
  33. 1.522 km ENE of Soledad, California · 15181 days ago · 5 km deep · 29 km away
  34. 2.015 km NNW of Coalinga, California · 15181 days ago · 7 km deep · 75 km away
  35. 1.518 km ESE of Tres Pinos, California · 15180 days ago · 5 km deep · 52 km away
  36. 2.424 km ENE of Soledad, California · 15180 days ago · 2 km deep · 30 km away
  37. 2.821 km NE of Soledad, California · 15178 days ago · 8 km deep · 31 km away
  38. 1.66 km WSW of Gilroy, California · 15178 days ago · 5 km deep · 86 km away
  39. 1.99 km E of San Martin, California · 15177 days ago · 8 km deep · 93 km away
  40. 1.922 km NNE of Soledad, California · 15177 days ago · 2 km deep · 36 km away
  41. 1.535 km NE of King City, California · 15177 days ago · 15 km deep · 40 km away
  42. 1.824 km NE of Greenfield, California · 15177 days ago · 5 km deep · 27 km away
  43. 2.04 km E of Day Valley, California · 15176 days ago · 10 km deep · 98 km away
  44. 1.611 km NW of Parkfield, California · 15175 days ago · 11 km deep · 73 km away
  45. 1.715 km N of Coalinga, California · 15175 days ago · 8 km deep · 81 km away
  46. 1.721 km NE of Soledad, California · 15175 days ago · 7 km deep · 31 km away
  47. 2.4Central California · 15175 days ago · 8 km deep · 60 km away
  48. 1.724 km NE of Greenfield, California · 15174 days ago · 7 km deep · 27 km away
  49. 2.68 km NE of Gilroy, California · 15172 days ago · 4 km deep · 89 km away
  50. 1.521 km NE of Soledad, California · 15172 days ago · 5 km deep · 31 km away
  51. 2.430 km ENE of Soledad, California · 15172 days ago · 7 km deep · 37 km away
  52. 1.55 km SSW of Ridgemark, California · 15172 days ago · 9 km deep · 56 km away
  53. 1.611 km ENE of Coalinga, California · 15172 days ago · 12 km deep · 90 km away
  54. 1.921 km NE of Soledad, California · 15171 days ago · 7 km deep · 31 km away
  55. 1.522 km NE of Soledad, California · 15171 days ago · 8 km deep · 32 km away
  56. 2.224 km NE of Greenfield, California · 15171 days ago · 2 km deep · 28 km away
  57. 1.87 km NNE of San Simeon, California · 15170 days ago · 4 km deep · 65 km away
  58. 2.84 km E of San Juan Bautista, California · 15170 days ago · 8 km deep · 68 km away
  59. 2.423 km NE of King City, California · 15168 days ago · 7 km deep · 28 km away
  60. 1.619 km SSE of Tres Pinos, California · 15168 days ago · 5 km deep · 41 km away

The first 60 of 173.

Before

  1. 1.713 km NE of Coalinga, California · 15196 days ago · 11 km deep · 87 km away
  2. 1.636 km NE of San Lucas, California · 15197 days ago · 10 km deep · 43 km away
  3. 1.517 km SW of Soledad, California · 15197 days ago · 7 km deep · 21 km away
  4. 1.77 km E of Gilroy, California · 15197 days ago · 5 km deep · 84 km away
  5. 1.99 km SSW of Tres Pinos, California · 15199 days ago · 3 km deep · 50 km away
  6. 2.016 km N of Coalinga, California · 15199 days ago · 9 km deep · 78 km away
  7. 1.78 km E of Gilroy, California · 15199 days ago · 5 km deep · 83 km away
  8. 1.79 km N of Coalinga, California · 15199 days ago · 8 km deep · 81 km away
  9. 1.79 km N of Coalinga, California · 15199 days ago · 9 km deep · 80 km away
  10. 2.231 km WSW of Three Rocks, California · 15200 days ago · 10 km deep · 50 km away
  11. 1.624 km ENE of Greenfield, California · 15200 days ago · 4 km deep · 27 km away
  12. 1.912 km NW of Avenal, California · 15200 days ago · 0 km deep · 95 km away
  13. 1.913 km NE of Coalinga, California · 15201 days ago · 12 km deep · 88 km away
  14. 1.610 km NE of Coalinga, California · 15201 days ago · 9 km deep · 88 km away
  15. 1.89 km NNE of Hollister, California · 15201 days ago · 7 km deep · 73 km away
  16. 2.111 km NE of Coalinga, California · 15202 days ago · 13 km deep · 87 km away
  17. 1.641 km W of Lockwood, California · 15202 days ago · 8 km deep · 46 km away
  18. 1.622 km NE of San Lucas, California · 15202 days ago · 6 km deep · 33 km away
  19. 1.911 km E of Coalinga, California · 15202 days ago · 10 km deep · 92 km away
  20. 1.911 km E of Coalinga, California · 15203 days ago · 9 km deep · 92 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc43771. Read Thu, Oct 1, 2026, 11:45 PM UTC.