California earthquakes

M1.8 earthquake 5 km NNW of Aromas, California

A magnitude 1.8 earthquake struck 5 km NNW of Aromas, California on Sun, Oct 22, 1989, 4:32 AM PDT (11:32 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.7 6 km NE of Day Valley, California. This one was a foreshock.

Aromas 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1989-10-22 11:32:10 UTC
Depth
10.2 km (6.3 mi), shallow
Epicenter
36.929° N, 121.673° 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 0.1 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
72°
Stations used
59

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 199 in the 60 days after this one and 199 in the 30 days before it.

After

  1. 1.628 km W of Volta, California · 13496 days ago · 0 km deep · 42 km away
  2. 1.64 km E of Interlaken, California · 13496 days ago · 9 km deep · 3 km away
  3. 2.57 km NE of Interlaken, California · 13496 days ago · 2 km deep · 7 km away
  4. 1.52 km SE of Lexington Hills, California · 13496 days ago · 9 km deep · 35 km away
  5. 2.27 km ENE of Day Valley, California · 13496 days ago · 7 km deep · 18 km away
  6. 2.0Northern California · 13496 days ago · 11 km deep · 28 km away
  7. 1.66 km NW of Day Valley, California · 13496 days ago · 15 km deep · 28 km away
  8. 2.06 km NNW of Day Valley, California · 13496 days ago · 9 km deep · 26 km away
  9. 4.01 km N of Corralitos, California · 13496 days ago · 17 km deep · 14 km away
  10. 2.32 km E of Aromas, California · 13496 days ago · 7 km deep · 7 km away
  11. 2.43 km NE of Lexington Hills, California · 13496 days ago · 6 km deep · 38 km away
  12. 2.56 km ENE of Day Valley, California · 13496 days ago · 5 km deep · 18 km away
  13. 1.89 km N of Day Valley, California · 13496 days ago · 3 km deep · 27 km away
  14. 1.67 km SSE of Lexington Hills, California · 13496 days ago · 32 km deep · 30 km away
  15. 1.84 km E of Interlaken, California · 13496 days ago · 8 km deep · 2 km away
  16. 2.32 km SW of Saratoga, California · 13496 days ago · 10 km deep · 48 km away
  17. 1.62 km SW of Lexington Hills, California · 13496 days ago · 12 km deep · 37 km away
  18. 1.67 km N of Day Valley, California · 13496 days ago · 4 km deep · 26 km away
  19. 1.72 km NW of Lexington Hills, California · 13496 days ago · 8 km deep · 39 km away
  20. 1.55 km NNW of Aromas, California · 13496 days ago · 7 km deep · 0 km away
  21. 1.73 km NE of Amesti, California · 13496 days ago · 15 km deep · 10 km away
  22. 1.72 km ENE of Interlaken, California · 13496 days ago · 13 km deep · 5 km away
  23. 1.64 km NW of Day Valley, California · 13496 days ago · 15 km deep · 25 km away
  24. 1.57 km W of Gilroy, California · 13496 days ago · 3 km deep · 7 km away
  25. 1.63 km NE of Lexington Hills, California · 13496 days ago · 5 km deep · 37 km away
  26. 2.025 km ENE of Soledad, California · 13496 days ago · 7 km deep · 68 km away
  27. 1.86 km SE of Lexington Hills, California · 13496 days ago · 7 km deep · 30 km away
  28. 1.96 km ENE of Interlaken, California · 13496 days ago · 3 km deep · 5 km away
  29. 1.51 km SSW of Lexington Hills, California · 13496 days ago · 8 km deep · 37 km away
  30. 2.44 km ESE of Interlaken, California · 13496 days ago · 12 km deep · 1 km away
  31. 1.76 km ENE of Zayante, California · 13496 days ago · 17 km deep · 33 km away
  32. 1.74 km ESE of Interlaken, California · 13496 days ago · 10 km deep · 1 km away
  33. 2.58 km N of Day Valley, California · 13496 days ago · 3 km deep · 25 km away
  34. 1.82 km WNW of Lexington Hills, California · 13496 days ago · 10 km deep · 39 km away
  35. 1.84 km SSE of La Selva Beach, California · 13496 days ago · 2 km deep · 15 km away
  36. 2.22 km N of Interlaken, California · 13496 days ago · 15 km deep · 7 km away
  37. 2.59 km NNE of Day Valley, California · 13496 days ago · 4 km deep · 25 km away
  38. 1.813 km S of Tres Pinos, California · 13496 days ago · 4 km deep · 44 km away
  39. 1.74 km W of Hollister, California · 13496 days ago · 4 km deep · 21 km away
  40. 1.89 km NNE of Day Valley, California · 13496 days ago · 4 km deep · 25 km away
  41. 2.19 km NNE of San Juan Bautista, California · 13496 days ago · 4 km deep · 16 km away
  42. 2.02 km NW of Los Altos Hills, California · 13496 days ago · 3 km deep · 67 km away
  43. 2.44 km ESE of Aromas, California · 13496 days ago · 6 km deep · 10 km away
  44. 1.54 km E of Interlaken, California · 13496 days ago · 9 km deep · 2 km away
  45. 1.65 km ENE of Day Valley, California · 13496 days ago · 2 km deep · 19 km away
  46. 2.431 km ENE of Soledad, California · 13496 days ago · 8 km deep · 69 km away
  47. 2.16 km ENE of Day Valley, California · 13496 days ago · 4 km deep · 17 km away
  48. 1.80 km NNE of Aptos Hills-Larkin Valley, California · 13496 days ago · 9 km deep · 15 km away
  49. 1.84 km ESE of Interlaken, California · 13496 days ago · 12 km deep · 2 km away
  50. 1.99 km NNE of Day Valley, California · 13496 days ago · 4 km deep · 25 km away
  51. 2.33 km N of Day Valley, California · 13496 days ago · 10 km deep · 23 km away
  52. 1.65 km NNW of Aromas, California · 13496 days ago · 7 km deep · 1 km away
  53. 1.81 km SSW of Lexington Hills, California · 13496 days ago · 8 km deep · 37 km away
  54. 1.69 km N of Day Valley, California · 13496 days ago · 4 km deep · 27 km away
  55. 1.64 km ESE of Interlaken, California · 13496 days ago · 11 km deep · 1 km away
  56. 1.97 km WNW of Day Valley, California · 13496 days ago · 19 km deep · 28 km away
  57. 1.84 km ESE of Interlaken, California · 13496 days ago · 12 km deep · 1 km away
  58. 2.15 km SW of Gilroy, California · 13496 days ago · 3 km deep · 7 km away
  59. 1.62 km SSW of Lexington Hills, California · 13496 days ago · 12 km deep · 36 km away
  60. 1.75 km E of Interlaken, California · 13496 days ago · 6 km deep · 3 km away

The first 60 of 199.

Before

  1. 1.62 km N of Interlaken, California · 13496 days ago · 14 km deep · 7 km away
  2. 1.98 km N of Day Valley, California · 13496 days ago · 4 km deep · 26 km away
  3. 1.52 km N of Aromas, California · 13496 days ago · 6 km deep · 4 km away
  4. 1.84 km NNW of Day Valley, California · 13496 days ago · 13 km deep · 25 km away
  5. 1.62 km NNW of Aromas, California · 13496 days ago · 10 km deep · 3 km away
  6. 1.64 km SSE of Lexington Hills, California · 13496 days ago · 8 km deep · 33 km away
  7. 3.55 km NNW of Aromas, California · 13496 days ago · 5 km deep · 1 km away
  8. 2.88 km SW of Monte Sereno, California · 13497 days ago · 15 km deep · 45 km away
  9. 1.66 km W of Davenport, California · 13497 days ago · 2 km deep · 53 km away
  10. 2.33 km NE of Lexington Hills, California · 13497 days ago · 6 km deep · 38 km away
  11. 1.83 km SW of Lexington Hills, California · 13497 days ago · 14 km deep · 37 km away
  12. 2.36 km NE of Scotts Valley, California · 13497 days ago · 17 km deep · 32 km away
  13. 2.05 km SW of Gilroy, California · 13497 days ago · 4 km deep · 7 km away
  14. 1.97 km N of Day Valley, California · 13497 days ago · 3 km deep · 26 km away
  15. 1.52 km E of Interlaken, California · 13497 days ago · 14 km deep · 4 km away
  16. 1.8Northern California · 13497 days ago · 14 km deep · 25 km away
  17. 1.54 km ESE of Interlaken, California · 13497 days ago · 10 km deep · 2 km away
  18. 2.01 km NE of Interlaken, California · 13497 days ago · 14 km deep · 6 km away
  19. 1.83 km SSW of Lexington Hills, California · 13497 days ago · 15 km deep · 36 km away
  20. 1.66 km N of Interlaken, California · 13497 days ago · 8 km deep · 10 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc236679. Read Sun, Oct 4, 2026, 9:02 PM UTC.