California earthquakes

M3.1 earthquake 3 km NNW of Aromas, California

A magnitude 3.1 earthquake struck 3 km NNW of Aromas, California on Thu, Oct 19, 1989, 7:39 AM PDT (14:39 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.7 4 km NW 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
3.1 (ML, local (Richter)), minor
Magnitude from
Northern California Seismic System
Local time
UTC
1989-10-19 14:39:10 UTC
Depth
7.7 km (4.8 mi), shallow
Epicenter
36.916° N, 121.658° 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
Depth from
From location
Station coverage gap
72°
Stations used
64

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 at least 200 in the 30 days before it.

After

  1. 1.92 km SSE of Redwood City, California · 13497 days ago · 15 km deep · 79 km away
  2. 2.46 km E of Day Valley, California · 13497 days ago · 3 km deep · 19 km away
  3. 1.94 km ESE of Interlaken, California · 13497 days ago · 10 km deep · 3 km away
  4. 1.77 km SW of Monte Sereno, California · 13497 days ago · 14 km deep · 47 km away
  5. 1.61 km NNE of Corralitos, California · 13497 days ago · 16 km deep · 16 km away
  6. 1.715 km ENE of Soledad, California · 13497 days ago · 10 km deep · 67 km away
  7. 1.79 km N of Day Valley, California · 13497 days ago · 3 km deep · 29 km away
  8. 1.58 km N of Day Valley, California · 13497 days ago · 4 km deep · 28 km away
  9. 1.99 km N of Day Valley, California · 13497 days ago · 0 km deep · 30 km away
  10. 1.91 km NW of Lexington Hills, California · 13497 days ago · 6 km deep · 41 km away
  11. 1.69 km N of Day Valley, California · 13497 days ago · 1 km deep · 30 km away
  12. 2.85 km E of Day Valley, California · 13497 days ago · 4 km deep · 19 km away
  13. 1.54 km WNW of Lexington Hills, California · 13497 days ago · 11 km deep · 44 km away
  14. 1.88 km N of Day Valley, California · 13497 days ago · 3 km deep · 28 km away
  15. 1.64 km N of Interlaken, California · 13497 days ago · 13 km deep · 11 km away
  16. 3.12 km NNE of Interlaken, California · 13497 days ago · 13 km deep · 8 km away
  17. 1.52 km SE of Aptos Hills-Larkin Valley, California · 13497 days ago · 7 km deep · 14 km away
  18. 1.70 km NNE of Aptos Hills-Larkin Valley, California · 13497 days ago · 7 km deep · 16 km away
  19. 3.03 km NE of Interlaken, California · 13497 days ago · 6 km deep · 8 km away
  20. 2.44 km NE of Interlaken, California · 13497 days ago · 6 km deep · 8 km away
  21. 1.53 km ESE of Day Valley, California · 13497 days ago · 15 km deep · 19 km away
  22. 3.93 km N of Aromas, California · 13497 days ago · 5 km deep · 1 km away
  23. 3.74 km N of Aromas, California · 13497 days ago · 5 km deep · 1 km away
  24. 2.44 km NNW of Aromas, California · 13497 days ago · 5 km deep · 1 km away
  25. 1.63 km NNE of Interlaken, California · 13497 days ago · 6 km deep · 8 km away
  26. 1.63 km W of Freedom, California · 13497 days ago · 8 km deep · 14 km away
  27. 1.83 km ENE of Day Valley, California · 13497 days ago · 11 km deep · 21 km away
  28. 1.64 km ESE of Interlaken, California · 13497 days ago · 10 km deep · 3 km away
  29. 1.67 km ESE of Lexington Hills, California · 13497 days ago · 8 km deep · 32 km away
  30. 1.7Northern California · 13497 days ago · 7 km deep · 40 km away
  31. 2.11 km NNE of Interlaken, California · 13497 days ago · 14 km deep · 8 km away
  32. 2.04 km NNW of Aromas, California · 13497 days ago · 4 km deep · 2 km away
  33. 1.87 km NW of Day Valley, California · 13497 days ago · 16 km deep · 30 km away
  34. 1.65 km NW of Day Valley, California · 13497 days ago · 14 km deep · 28 km away
  35. 2.1Northern California · 13497 days ago · 7 km deep · 13 km away
  36. 1.64 km E of Interlaken, California · 13497 days ago · 9 km deep · 4 km away
  37. 2.02 km WSW of San Juan Bautista, California · 13497 days ago · 6 km deep · 12 km away
  38. 1.94 km E of Interlaken, California · 13497 days ago · 10 km deep · 4 km away
  39. 1.62 km NNE of Corralitos, California · 13497 days ago · 15 km deep · 16 km away
  40. 1.76 km ENE of Interlaken, California · 13497 days ago · 2 km deep · 7 km away
  41. 1.67 km NW of Day Valley, California · 13497 days ago · 14 km deep · 30 km away
  42. 1.91 km N of Aptos Hills-Larkin Valley, California · 13497 days ago · 7 km deep · 17 km away
  43. 2.12 km NNW of Corralitos, California · 13497 days ago · 16 km deep · 18 km away
  44. 1.96 km WSW of Davenport, California · 13497 days ago · 6 km deep · 54 km away
  45. 1.64 km E of Interlaken, California · 13497 days ago · 10 km deep · 4 km away
  46. 1.62 km NW of Lexington Hills, California · 13497 days ago · 9 km deep · 42 km away
  47. 1.62 km ENE of Interlaken, California · 13497 days ago · 13 km deep · 7 km away
  48. 1.74 km NNW of Aromas, California · 13497 days ago · 4 km deep · 1 km away
  49. 1.65 km NW of Day Valley, California · 13497 days ago · 17 km deep · 28 km away
  50. 1.64 km NNW of Aromas, California · 13497 days ago · 7 km deep · 1 km away
  51. 2.00 km ENE of Aptos Hills-Larkin Valley, California · 13497 days ago · 9 km deep · 16 km away
  52. 2.25 km ESE of Interlaken, California · 13497 days ago · 11 km deep · 3 km away
  53. 1.70 km ENE of Aptos Hills-Larkin Valley, California · 13497 days ago · 8 km deep · 16 km away
  54. 1.7Northern California · 13497 days ago · 16 km deep · 26 km away
  55. 2.11 km SSE of Lexington Hills, California · 13497 days ago · 9 km deep · 38 km away
  56. 1.78 km SE of Lexington Hills, California · 13497 days ago · 10 km deep · 31 km away
  57. 3.24 km SSW of Lexington Hills, California · 13497 days ago · 16 km deep · 37 km away
  58. 1.53 km NE of Amesti, California · 13497 days ago · 14 km deep · 11 km away
  59. 1.51 km NW of Aptos Hills-Larkin Valley, California · 13497 days ago · 6 km deep · 17 km away
  60. 2.09 km N of Day Valley, California · 13497 days ago · 3 km deep · 30 km away

The first 60 of 199.

Before

  1. 2.22 km SE of Aptos Hills-Larkin Valley, California · 13497 days ago · 8 km deep · 14 km away
  2. 1.54 km ESE of Interlaken, California · 13497 days ago · 10 km deep · 4 km away
  3. 3.01 km SSW of Lexington Hills, California · 13497 days ago · 12 km deep · 39 km away
  4. 2.01 km N of Lexington Hills, California · 13497 days ago · 7 km deep · 40 km away
  5. 1.61 km NE of Interlaken, California · 13497 days ago · 12 km deep · 7 km away
  6. 2.94 km NNW of Aromas, California · 13497 days ago · 6 km deep · 1 km away
  7. 2.65 km ENE of Day Valley, California · 13497 days ago · 3 km deep · 19 km away
  8. 1.53 km N of Day Valley, California · 13497 days ago · 9 km deep · 25 km away
  9. 1.92 km N of Interlaken, California · 13497 days ago · 12 km deep · 9 km away
  10. 1.82 km SE of Aptos Hills-Larkin Valley, California · 13497 days ago · 9 km deep · 14 km away
  11. 1.78 km N of Day Valley, California · 13497 days ago · 3 km deep · 28 km away
  12. 1.68 km NE of Interlaken, California · 13497 days ago · 2 km deep · 9 km away
  13. 1.69 km N of Boulder Creek, California · 13497 days ago · 12 km deep · 52 km away
  14. 1.79 km N of Boulder Creek, California · 13497 days ago · 12 km deep · 52 km away
  15. 2.28 km N of Day Valley, California · 13497 days ago · 2 km deep · 28 km away
  16. 2.17 km SE of Lexington Hills, California · 13497 days ago · 2 km deep · 32 km away
  17. 2.91 km N of Aptos Hills-Larkin Valley, California · 13497 days ago · 8 km deep · 17 km away
  18. 1.61 km SSW of Portola Valley, California · 13497 days ago · 11 km deep · 72 km away
  19. 2.87 km N of Day Valley, California · 13497 days ago · 5 km deep · 28 km away
  20. 1.79 km N of Day Valley, California · 13497 days ago · 3 km deep · 29 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc145663. Read Fri, Oct 2, 2026, 7:27 PM UTC.