California earthquakes

M1.6 earthquake 2 km WSW of Ridgemark, California

A magnitude 1.6 earthquake struck 2 km WSW of Ridgemark, California on Sun, May 9, 1976, 12:37 AM PDT (07:37 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.6 13 km WSW of Three Rocks, California. This one was a foreshock.

Ridgemark 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
1976-05-09 07:37:57 UTC
Depth
6.2 km (3.9 mi), shallow
Epicenter
36.805° N, 121.389° 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, 0.6 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
62°
Stations used
22

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 95 in the 30 days before it.

After

  1. 1.721 km NE of Soledad, California · 18408 days ago · 6 km deep · 37 km away
  2. 2.27 km SSE of Gilroy, California · 18408 days ago · 6 km deep · 20 km away
  3. 2.321 km NNE of Soledad, California · 18408 days ago · 8 km deep · 28 km away
  4. 1.97 km ESE of Big Sur, California · 18408 days ago · 7 km deep · 70 km away
  5. 1.714 km N of Morgan Hill, California · 18408 days ago · 3 km deep · 55 km away
  6. 1.622 km SSE of Tres Pinos, California · 18408 days ago · 6 km deep · 27 km away
  7. 1.89 km NE of San Martin, California · 18408 days ago · 7 km deep · 40 km away
  8. 2.421 km NNE of Morgan Hill, California · 18408 days ago · 9 km deep · 58 km away
  9. 2.821 km NE of Soledad, California · 18408 days ago · 3 km deep · 33 km away
  10. 2.624 km ENE of Greenfield, California · 18408 days ago · 5 km deep · 53 km away
  11. 2.424 km NE of Greenfield, California · 18407 days ago · 2 km deep · 50 km away
  12. 2.122 km ENE of Soledad, California · 18407 days ago · 5 km deep · 42 km away
  13. 2.421 km NE of Soledad, California · 18406 days ago · 6 km deep · 37 km away
  14. 2.521 km ENE of East Foothills, California · 18406 days ago · 6 km deep · 78 km away
  15. 2.522 km ENE of Soledad, California · 18405 days ago · 5 km deep · 42 km away
  16. 2.524 km ENE of Soledad, California · 18405 days ago · 2 km deep · 45 km away
  17. 2.715 km SSE of Diablo Grande, California · 18405 days ago · 0 km deep · 53 km away
  18. 2.522 km NNE of Soledad, California · 18405 days ago · 1 km deep · 29 km away
  19. 3.423 km ENE of King City, California · 18405 days ago · 4 km deep · 68 km away
  20. 2.223 km ENE of Soledad, California · 18404 days ago · 4 km deep · 42 km away
  21. 3.26 km ESE of Tres Pinos, California · 18404 days ago · 10 km deep · 12 km away
  22. 1.87 km SE of Lexington Hills, California · 18404 days ago · 13 km deep · 58 km away
  23. 1.621 km NE of Soledad, California · 18403 days ago · 7 km deep · 35 km away
  24. 2.08 km NW of Hollister, California · 18403 days ago · 6 km deep · 14 km away
  25. 1.913 km W of Diablo Grande, California · 18403 days ago · 5 km deep · 67 km away
  26. 2.922 km ENE of Soledad, California · 18401 days ago · 5 km deep · 42 km away
  27. 2.824 km NE of Greenfield, California · 18401 days ago · 5 km deep · 50 km away
  28. 3.619 km SW of Soledad, California · 18400 days ago · 13 km deep · 57 km away
  29. 2.624 km ENE of Greenfield, California · 18400 days ago · 0 km deep · 55 km away
  30. 2.413 km SSE of Tres Pinos, California · 18399 days ago · 4 km deep · 18 km away
  31. 2.12 km WSW of San Juan Bautista, California · 18399 days ago · 4 km deep · 16 km away
  32. 2.09 km NNW of Hollister, California · 18399 days ago · 7 km deep · 15 km away
  33. 2.28 km ENE of Milpitas, California · 18398 days ago · 6 km deep · 83 km away
  34. 2.57 km E of East Foothills, California · 18398 days ago · 8 km deep · 71 km away
  35. 3.08 km NW of Hollister, California · 18398 days ago · 9 km deep · 13 km away
  36. 2.325 km ENE of Greenfield, California · 18398 days ago · 5 km deep · 54 km away
  37. 2.29 km NE of San Juan Bautista, California · 18398 days ago · 3 km deep · 14 km away
  38. 2.3Northern California · 18398 days ago · 6 km deep · 58 km away
  39. 3.023 km NE of San Ardo, California · 18398 days ago · 7 km deep · 89 km away
  40. 1.822 km ENE of Soledad, California · 18396 days ago · 9 km deep · 43 km away
  41. 1.74 km E of Tres Pinos, California · 18396 days ago · 7 km deep · 11 km away
  42. 1.58 km NE of Milpitas, California · 18396 days ago · 4 km deep · 84 km away
  43. 2.127 km NE of Soledad, California · 18396 days ago · 9 km deep · 37 km away
  44. 2.29 km NE of San Martin, CA · 18395 days ago · 6 km deep · 39 km away
  45. 2.0Central California · 18395 days ago · 5 km deep · 60 km away
  46. 1.66 km WSW of Gilroy, California · 18395 days ago · 4 km deep · 29 km away
  47. 1.87 km ESE of East Foothills, California · 18394 days ago · 2 km deep · 70 km away
  48. 4.613 km WSW of Three Rocks, California · 18394 days ago · 12 km deep · 84 km away
  49. 2.728 km ENE of Soledad, California · 18394 days ago · 8 km deep · 42 km away
  50. 1.89 km E of San Martin, California · 18394 days ago · 7 km deep · 33 km away
  51. 1.921 km NE of Soledad, California · 18394 days ago · 3 km deep · 34 km away
  52. 3.026 km SW of South Dos Palos, California · 18393 days ago · 2 km deep · 45 km away
  53. 2.14 km NNW of Day Valley, California · 18393 days ago · 4 km deep · 52 km away
  54. 3.123 km NNE of San Ardo, California · 18393 days ago · 8 km deep · 88 km away
  55. 2.721 km SSW of Los Banos, California · 18392 days ago · 5 km deep · 39 km away
  56. 1.6Central California · 18392 days ago · 7 km deep · 11 km away
  57. 2.324 km NE of Greenfield, California · 18392 days ago · 4 km deep · 50 km away
  58. 1.622 km NNE of Soledad, California · 18392 days ago · 6 km deep · 27 km away
  59. 2.29 km NW of Hollister, California · 18391 days ago · 2 km deep · 14 km away
  60. 2.527 km ENE of Soledad, California · 18391 days ago · 8 km deep · 40 km away

The first 60 of 180.

Before

  1. 1.98 km SSW of Tres Pinos, California · 18409 days ago · 3 km deep · 10 km away
  2. 2.17 km NE of Ridgemark, California · 18410 days ago · 4 km deep · 10 km away
  3. 2.112 km SSE of Tres Pinos, California · 18410 days ago · 4 km deep · 17 km away
  4. 2.221 km NE of Soledad, California · 18410 days ago · 7 km deep · 35 km away
  5. 2.65 km S of Gilroy, California · 18410 days ago · 9 km deep · 24 km away
  6. 2.324 km NE of Greenfield, California · 18410 days ago · 5 km deep · 51 km away
  7. 2.119 km NE of East Foothills, California · 18413 days ago · 8 km deep · 82 km away
  8. 2.215 km SSE of Diablo Grande, California · 18413 days ago · 3 km deep · 53 km away
  9. 2.322 km ENE of San Lucas, California · 18414 days ago · 7 km deep · 83 km away
  10. 2.45 km SSW of Tres Pinos, California · 18414 days ago · 9 km deep · 8 km away
  11. 2.321 km ESE of Tres Pinos, California · 18414 days ago · 5 km deep · 28 km away
  12. 1.78 km SSW of Tres Pinos, California · 18415 days ago · 3 km deep · 11 km away
  13. 2.74 km WSW of Loyola, California · 18416 days ago · 6 km deep · 90 km away
  14. 2.011 km SSE of Tres Pinos, California · 18416 days ago · 8 km deep · 16 km away
  15. 1.79 km NNW of Hollister, California · 18417 days ago · 4 km deep · 15 km away
  16. 2.021 km NE of Soledad, California · 18417 days ago · 7 km deep · 31 km away
  17. 2.37 km NE of Ridgemark, California · 18419 days ago · 5 km deep · 10 km away
  18. 1.63 km E of Aromas, California · 18420 days ago · 7 km deep · 21 km away
  19. 1.620 km ENE of East Foothills, California · 18420 days ago · 8 km deep · 71 km away
  20. 2.024 km E of Tres Pinos, California · 18420 days ago · 0 km deep · 30 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1029638. Read Sat, Oct 3, 2026, 3:13 AM UTC.