California earthquakes

M1.9 earthquake 2 km ESE of Aromas, California

A magnitude 1.9 earthquake struck 2 km ESE of Aromas, California on Mon, Sep 24, 1990, 11:32 AM PDT (18:32 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.6 2 km N of Scotts Valley, California. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-09-24 18:32:39 UTC
Depth
7.1 km (4.4 mi), shallow
Epicenter
36.881° N, 121.615° 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, 0.3 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
53°
Stations used
53

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 179 in the 30 days before it.

After

  1. 1.73 km S of San Juan Bautista, California · 13158 days ago · 6 km deep · 11 km away
  2. 2.32 km SE of Ladera, California · 13158 days ago · 6 km deep · 75 km away
  3. 3.52 km SE of Ladera, California · 13157 days ago · 7 km deep · 75 km away
  4. 1.913 km S of Tres Pinos, California · 13157 days ago · 4 km deep · 37 km away
  5. 1.721 km SW of Diablo Grande, California · 13156 days ago · 7 km deep · 47 km away
  6. 2.37 km SSE of Gilroy, California · 13156 days ago · 4 km deep · 10 km away
  7. 1.715 km SSE of Tres Pinos, California · 13156 days ago · 7 km deep · 38 km away
  8. 1.72 km N of Scotts Valley, California · 13155 days ago · 10 km deep · 41 km away
  9. 1.52 km N of Scotts Valley, California · 13155 days ago · 10 km deep · 41 km away
  10. 1.74 km WNW of San Juan Bautista, California · 13155 days ago · 6 km deep · 3 km away
  11. 2.122 km NE of Soledad, California · 13154 days ago · 3 km deep · 52 km away
  12. 1.913 km S of Tres Pinos, California · 13154 days ago · 5 km deep · 37 km away
  13. 2.414 km SSE of Tres Pinos, California · 13154 days ago · 8 km deep · 38 km away
  14. 1.814 km S of Tres Pinos, California · 13154 days ago · 8 km deep · 37 km away
  15. 1.614 km S of Tres Pinos, California · 13154 days ago · 8 km deep · 37 km away
  16. 1.52 km ESE of Zayante, California · 13153 days ago · 8 km deep · 42 km away
  17. 1.62 km N of Scotts Valley, California · 13153 days ago · 10 km deep · 42 km away
  18. 1.94 km WNW of San Juan Bautista, California · 13153 days ago · 6 km deep · 3 km away
  19. 2.12 km N of Scotts Valley, California · 13153 days ago · 11 km deep · 41 km away
  20. 1.924 km ENE of Soledad, California · 13153 days ago · 8 km deep · 65 km away
  21. 1.812 km S of Tres Pinos, California · 13153 days ago · 4 km deep · 36 km away
  22. 1.821 km NE of Soledad, California · 13153 days ago · 6 km deep · 58 km away
  23. 3.113 km SSE of Tres Pinos, California · 13153 days ago · 5 km deep · 37 km away
  24. 2.54 km S of Lexington Hills, California · 13153 days ago · 14 km deep · 42 km away
  25. 2.412 km S of Tres Pinos, California · 13152 days ago · 4 km deep · 36 km away
  26. 2.25 km NNE of Tres Pinos, California · 13152 days ago · 6 km deep · 29 km away
  27. 2.37 km NW of Day Valley, California · 13151 days ago · 10 km deep · 35 km away
  28. 2.15 km WNW of San Juan Bautista, California · 13151 days ago · 6 km deep · 3 km away
  29. 1.66 km WSW of Gilroy, California · 13151 days ago · 4 km deep · 11 km away
  30. 1.524 km ENE of Soledad, California · 13150 days ago · 8 km deep · 65 km away
  31. 2.12 km SSW of San Juan Bautista, California · 13150 days ago · 6 km deep · 9 km away
  32. 1.95 km NW of Day Valley, California · 13150 days ago · 15 km deep · 33 km away
  33. 2.310 km S of Tres Pinos, California · 13150 days ago · 5 km deep · 33 km away
  34. 1.51 km WSW of San Juan Bautista, California · 13150 days ago · 9 km deep · 7 km away
  35. 2.110 km S of Tres Pinos, California · 13150 days ago · 4 km deep · 33 km away
  36. 1.95 km NNE of Tres Pinos, California · 13150 days ago · 6 km deep · 29 km away
  37. 1.64 km NE of Tres Pinos, California · 13148 days ago · 8 km deep · 30 km away
  38. 3.62 km N of Scotts Valley, California · 13148 days ago · 12 km deep · 42 km away
  39. 2.42 km N of Scotts Valley, California · 13148 days ago · 11 km deep · 41 km away
  40. 1.62 km N of Scotts Valley, California · 13148 days ago · 10 km deep · 41 km away
  41. 1.62 km NNE of Scotts Valley, California · 13148 days ago · 10 km deep · 41 km away
  42. 2.01 km S of Lexington Hills, California · 13148 days ago · 9 km deep · 44 km away
  43. 1.72 km NNW of Aromas, California · 13146 days ago · 9 km deep · 4 km away
  44. 1.86 km WSW of Saratoga, California · 13146 days ago · 7 km deep · 59 km away
  45. 1.73 km WNW of San Juan Bautista, California · 13145 days ago · 6 km deep · 5 km away
  46. 2.916 km N of Morgan Hill, California · 13144 days ago · 8 km deep · 44 km away
  47. 1.716 km E of Seven Trees, California · 13144 days ago · 7 km deep · 45 km away
  48. 1.93 km WNW of San Juan Bautista, California · 13144 days ago · 6 km deep · 4 km away
  49. 2.23 km S of San Juan Bautista, California · 13143 days ago · 5 km deep · 10 km away
  50. 2.22 km S of San Juan Bautista, California · 13143 days ago · 6 km deep · 9 km away
  51. 1.829 km NE of Soledad, California · 13143 days ago · 5 km deep · 60 km away
  52. 1.922 km NE of San Lucas, California · 13143 days ago · 7 km deep · 100 km away
  53. 1.915 km SSE of Tres Pinos, California · 13143 days ago · 5 km deep · 40 km away
  54. 2.321 km NE of Soledad, California · 13142 days ago · 6 km deep · 57 km away
  55. 1.55 km SW of Gilroy, California · 13142 days ago · 4 km deep · 10 km away
  56. 1.62 km SE of Aromas, California · 13142 days ago · 11 km deep · 1 km away
  57. 1.73 km SSW of Tres Pinos, California · 13142 days ago · 1 km deep · 28 km away
  58. 1.621 km NE of Soledad, California · 13141 days ago · 6 km deep · 56 km away
  59. 1.619 km SSW of Davenport, California · 13141 days ago · 2 km deep · 58 km away
  60. 3.04 km NNW of Day Valley, California · 13141 days ago · 13 km deep · 32 km away

The first 60 of 168.

Before

  1. 2.62 km ESE of Aromas, California · 13159 days ago · 6 km deep · 0 km away
  2. 2.014 km E of Seven Trees, California · 13159 days ago · 6 km deep · 47 km away
  3. 1.514 km SSE of Tres Pinos, California · 13159 days ago · 6 km deep · 38 km away
  4. 3.22 km SE of Ladera, California · 13160 days ago · 7 km deep · 75 km away
  5. 2.26 km E of East Foothills, California · 13160 days ago · 6 km deep · 57 km away
  6. 1.511 km S of Tres Pinos, California · 13160 days ago · 3 km deep · 34 km away
  7. 1.93 km S of San Juan Bautista, California · 13160 days ago · 6 km deep · 10 km away
  8. 2.65 km SSE of San Juan Bautista, California · 13160 days ago · 6 km deep · 13 km away
  9. 3.03 km S of San Juan Bautista, California · 13160 days ago · 6 km deep · 11 km away
  10. 3.24 km SSE of San Juan Bautista, California · 13160 days ago · 5 km deep · 12 km away
  11. 3.63 km S of San Juan Bautista, California · 13160 days ago · 7 km deep · 11 km away
  12. 1.815 km SSE of Tres Pinos, California · 13160 days ago · 7 km deep · 39 km away
  13. 2.014 km S of Tres Pinos, California · 13160 days ago · 7 km deep · 38 km away
  14. 1.736 km SSW of South Dos Palos, California · 13160 days ago · 1 km deep · 71 km away
  15. 3.115 km SSE of Tres Pinos, California · 13160 days ago · 8 km deep · 38 km away
  16. 3.214 km SSE of Tres Pinos, California · 13160 days ago · 8 km deep · 38 km away
  17. 3.214 km SSE of Tres Pinos, California · 13160 days ago · 8 km deep · 38 km away
  18. 2.121 km NE of Soledad, California · 13161 days ago · 7 km deep · 57 km away
  19. 1.75 km NE of Amesti, California · 13162 days ago · 11 km deep · 18 km away
  20. 1.57 km SSE of San Juan Bautista, California · 13162 days ago · 8 km deep · 15 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc164538. Read Sun, Oct 4, 2026, 6:03 AM UTC.