California earthquakes

M1.7 earthquake 2 km SW of Ridgemark, California

A magnitude 1.7 earthquake struck 2 km SW of Ridgemark, California on Wed, May 24, 1989, 9:35 PM PDT (04:35 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.9 6 km ENE of East Foothills, 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1989-05-25 04:35:16 UTC
Depth
7.8 km (4.8 mi), shallow
Epicenter
36.793° N, 121.385° 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
±0.22
Depth from
From location
Station coverage gap
57°
Stations used
35

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 124 in the 60 days after this one and 56 in the 30 days before it.

After

  1. 2.122 km NNE of Soledad, California · 13644 days ago · 6 km deep · 27 km away
  2. 1.615 km ESE of Tres Pinos, California · 13643 days ago · 4 km deep · 20 km away
  3. 1.818 km NE of East Foothills, California · 13643 days ago · 6 km deep · 84 km away
  4. 1.810 km ENE of Seven Trees, California · 13643 days ago · 5 km deep · 64 km away
  5. 2.410 km NE of San Martin, California · 13643 days ago · 8 km deep · 43 km away
  6. 2.223 km ENE of San Lucas, California · 13642 days ago · 5 km deep · 84 km away
  7. 2.523 km ENE of San Ardo, California · 13642 days ago · 6 km deep · 99 km away
  8. 1.92 km W of Cambrian Park, California · 13642 days ago · 8 km deep · 72 km away
  9. 1.911 km SSE of Carmel-by-the-Sea, California · 13641 days ago · 5 km deep · 59 km away
  10. 1.522 km ENE of Soledad, California · 13640 days ago · 2 km deep · 40 km away
  11. 2.322 km NNE of Soledad, California · 13639 days ago · 2 km deep · 27 km away
  12. 1.610 km WNW of Big Sur, California · 13637 days ago · 8 km deep · 72 km away
  13. 1.72 km W of Cambrian Park, California · 13637 days ago · 7 km deep · 73 km away
  14. 1.821 km NE of Soledad, California · 13637 days ago · 5 km deep · 31 km away
  15. 1.617 km NW of Pacific Grove, California · 13636 days ago · 11 km deep · 61 km away
  16. 2.023 km NE of King City, California · 13635 days ago · 4 km deep · 63 km away
  17. 1.927 km S of Los Banos, California · 13635 days ago · 4 km deep · 43 km away
  18. 2.33 km ESE of Aromas, California · 13634 days ago · 7 km deep · 21 km away
  19. 2.66 km ENE of East Foothills, California · 13632 days ago · 10 km deep · 76 km away
  20. 2.14 km NE of Tres Pinos, California · 13630 days ago · 8 km deep · 9 km away
  21. 2.44 km NE of Tres Pinos, California · 13630 days ago · 8 km deep · 9 km away
  22. 1.87 km NNE of East Foothills, California · 13630 days ago · 8 km deep · 80 km away
  23. 1.710 km SSE of South Dos Palos, California · 13630 days ago · 2 km deep · 69 km away
  24. 1.86 km ENE of East Foothills, California · 13630 days ago · 7 km deep · 75 km away
  25. 2.49 km S of Tres Pinos, California · 13630 days ago · 3 km deep · 11 km away
  26. 2.17 km E of East Foothills, California · 13629 days ago · 7 km deep · 72 km away
  27. 1.722 km NNE of Soledad, California · 13628 days ago · 5 km deep · 28 km away
  28. 1.5Central California · 13628 days ago · 4 km deep · 28 km away
  29. 2.724 km ENE of Greenfield, California · 13628 days ago · 7 km deep · 55 km away
  30. 1.624 km ENE of Greenfield, California · 13628 days ago · 5 km deep · 55 km away
  31. 2.114 km SSE of Tres Pinos, California · 13628 days ago · 8 km deep · 17 km away
  32. 1.7Central California · 13627 days ago · 4 km deep · 12 km away
  33. 2.021 km NE of Soledad, California · 13627 days ago · 2 km deep · 33 km away
  34. 1.914 km SSE of Tres Pinos, California · 13626 days ago · 4 km deep · 17 km away
  35. 2.114 km SSE of Tres Pinos, California · 13626 days ago · 4 km deep · 17 km away
  36. 1.72 km SSW of Hollister, California · 13626 days ago · 8 km deep · 5 km away
  37. 1.723 km ENE of Soledad, California · 13625 days ago · 5 km deep · 44 km away
  38. 1.51 km E of Ridgemark, California · 13625 days ago · 6 km deep · 4 km away
  39. 1.68 km NE of Milpitas, California · 13624 days ago · 7 km deep · 86 km away
  40. 1.721 km NE of Soledad, California · 13623 days ago · 6 km deep · 34 km away
  41. 2.97 km ENE of Gilroy, California · 13622 days ago · 7 km deep · 28 km away
  42. 2.015 km SSE of Livermore, California · 13620 days ago · 6 km deep · 89 km away
  43. 2.822 km NNE of Soledad, California · 13620 days ago · 6 km deep · 28 km away
  44. 1.57 km NW of Boulder Creek, California · 13620 days ago · 6 km deep · 82 km away
  45. 2.013 km S of Tres Pinos, California · 13620 days ago · 2 km deep · 16 km away
  46. 2.422 km NNE of Soledad, California · 13620 days ago · 6 km deep · 28 km away
  47. 1.812 km WNW of Moss Landing, California · 13619 days ago · 5 km deep · 48 km away
  48. 1.923 km NE of King City, California · 13619 days ago · 6 km deep · 59 km away
  49. 1.77 km SSE of Gilroy, California · 13619 days ago · 5 km deep · 22 km away
  50. 1.724 km NE of Greenfield, California · 13618 days ago · 5 km deep · 47 km away
  51. 3.37 km E of East Foothills, California · 13617 days ago · 9 km deep · 72 km away
  52. 2.424 km ENE of Soledad, California · 13617 days ago · 2 km deep · 44 km away
  53. 2.414 km SSW of Santa Cruz, California · 13615 days ago · 7 km deep · 64 km away
  54. 1.68 km SE of Livermore, California · 13615 days ago · 7 km deep · 97 km away
  55. 2.413 km SSW of Santa Cruz, California · 13614 days ago · 0 km deep · 63 km away
  56. 2.324 km NE of Greenfield, California · 13612 days ago · 6 km deep · 47 km away
  57. 2.5Central California · 13612 days ago · 3 km deep · 29 km away
  58. 2.78 km NE of San Martin, California · 13611 days ago · 8 km deep · 40 km away
  59. 2.08 km ESE of Seven Trees, California · 13610 days ago · 4 km deep · 60 km away
  60. 2.123 km NE of Greenfield, California · 13610 days ago · 5 km deep · 47 km away

The first 60 of 124.

Before

  1. 1.93 km WSW of Diablo Grande, California · 13646 days ago · 4 km deep · 66 km away
  2. 1.59 km SW of Tres Pinos, California · 13647 days ago · 7 km deep · 7 km away
  3. 1.715 km SSE of Livermore, California · 13648 days ago · 3 km deep · 89 km away
  4. 3.322 km NE of Soledad, California · 13649 days ago · 3 km deep · 29 km away
  5. 2.04 km ESE of Big Sur, California · 13649 days ago · 12 km deep · 69 km away
  6. 3.13 km S of San Juan Bautista, California · 13650 days ago · 7 km deep · 14 km away
  7. 2.013 km S of Tres Pinos, California · 13650 days ago · 4 km deep · 15 km away
  8. 1.69 km NE of Gilroy, California · 13652 days ago · 8 km deep · 31 km away
  9. 2.221 km NE of Soledad, California · 13653 days ago · 2 km deep · 35 km away
  10. 1.57 km NE of Hollister, California · 13653 days ago · 5 km deep · 13 km away
  11. 1.96 km SSE of Gilroy, California · 13653 days ago · 5 km deep · 22 km away
  12. 2.113 km S of Tres Pinos, California · 13653 days ago · 4 km deep · 15 km away
  13. 1.521 km NE of Soledad, California · 13653 days ago · 2 km deep · 29 km away
  14. 3.59 km S of Tres Pinos, California · 13654 days ago · 3 km deep · 11 km away
  15. 1.622 km ENE of San Ardo, California · 13655 days ago · 3 km deep · 100 km away
  16. 1.937 km SSW of South Dos Palos, California · 13657 days ago · 6 km deep · 49 km away
  17. 1.619 km SSE of Livermore, California · 13657 days ago · 4 km deep · 85 km away
  18. 1.513 km N of Morgan Hill, California · 13657 days ago · 4 km deep · 55 km away
  19. 1.838 km SSW of South Dos Palos, California · 13657 days ago · 3 km deep · 49 km away
  20. 2.237 km SSW of South Dos Palos, California · 13657 days ago · 5 km deep · 49 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc136757. Read Fri, Oct 2, 2026, 6:00 AM UTC.