California earthquakes

M1.8 earthquake 1 km N of Corralitos, California

A magnitude 1.8 earthquake struck 1 km N of Corralitos, California on Wed, Oct 18, 1989, 3:03 PM PDT (22:03 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.7 4 km NW of Day Valley, California. This one was a foreshock.

Corralitos 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
1989-10-18 22:03:19 UTC
Depth
16.1 km (10.0 mi), shallow
Epicenter
37.005° N, 121.805° 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
±0.22
Depth from
From location
Station coverage gap
48°
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: at least 202 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 1.74 km WNW of Lexington Hills, California · 13499 days ago · 10 km deep · 28 km away
  2. 2.75 km N of Corralitos, California · 13499 days ago · 4 km deep · 4 km away
  3. 1.88 km NNE of Day Valley, California · 13499 days ago · 3 km deep · 12 km away
  4. 3.05 km NNE of Corralitos, California · 13499 days ago · 5 km deep · 4 km away
  5. 1.81 km NNE of Interlaken, California · 13499 days ago · 13 km deep · 9 km away
  6. 1.64 km NE of Amesti, California · 13499 days ago · 13 km deep · 6 km away
  7. 2.31 km NNE of Interlaken, California · 13499 days ago · 14 km deep · 8 km away
  8. 1.76 km NNE of Corralitos, California · 13499 days ago · 3 km deep · 5 km away
  9. 1.78 km SE of Lexington Hills, California · 13499 days ago · 9 km deep · 15 km away
  10. 1.55 km N of Corralitos, California · 13499 days ago · 3 km deep · 4 km away
  11. 1.73 km NW of Corralitos, California · 13499 days ago · 12 km deep · 3 km away
  12. 2.14 km NNE of Corralitos, California · 13499 days ago · 10 km deep · 2 km away
  13. 2.21 km WSW of Amesti, California · 13499 days ago · 18 km deep · 6 km away
  14. 1.85 km S of Gilroy, California · 13499 days ago · 4 km deep · 21 km away
  15. 1.66 km N of Day Valley, California · 13499 days ago · 8 km deep · 11 km away
  16. 1.67 km NNE of Day Valley, California · 13499 days ago · 2 km deep · 11 km away
  17. 1.74 km ESE of Interlaken, California · 13499 days ago · 10 km deep · 13 km away
  18. 2.23 km S of Lexington Hills, California · 13499 days ago · 14 km deep · 21 km away
  19. 1.82 km WNW of San Juan Bautista, California · 13499 days ago · 1 km deep · 27 km away
  20. 1.69 km NNW of Day Valley, California · 13499 days ago · 4 km deep · 14 km away
  21. 3.20 km NW of Lexington Hills, California · 13499 days ago · 10 km deep · 24 km away
  22. 1.66 km WSW of Gilroy, California · 13499 days ago · 1 km deep · 15 km away
  23. 2.16 km N of Day Valley, California · 13499 days ago · 8 km deep · 11 km away
  24. 2.05 km SW of Monte Sereno, California · 13499 days ago · 11 km deep · 29 km away
  25. 1.91 km NNE of Interlaken, California · 13499 days ago · 13 km deep · 8 km away
  26. 1.66 km SW of Monte Sereno, California · 13499 days ago · 14 km deep · 31 km away
  27. 1.76 km SW of Monte Sereno, California · 13499 days ago · 14 km deep · 30 km away
  28. 2.56 km NNE of Corralitos, California · 13499 days ago · 1 km deep · 5 km away
  29. 2.40 km ESE of Lexington Hills, California · 13499 days ago · 9 km deep · 23 km away
  30. 1.83 km SSE of San Juan Bautista, California · 13499 days ago · 6 km deep · 33 km away
  31. 2.61 km NNE of Corralitos, California · 13499 days ago · 16 km deep · 1 km away
  32. 2.62 km NNE of Corralitos, California · 13499 days ago · 16 km deep · 1 km away
  33. 1.62 km SSW of Lexington Hills, California · 13499 days ago · 11 km deep · 22 km away
  34. 1.67 km NW of Day Valley, California · 13499 days ago · 14 km deep · 14 km away
  35. 2.67 km WNW of Day Valley, California · 13499 days ago · 16 km deep · 13 km away
  36. 2.83 km NE of Interlaken, California · 13499 days ago · 9 km deep · 9 km away
  37. 1.84 km NW of Day Valley, California · 13499 days ago · 16 km deep · 11 km away
  38. 1.74 km N of Lompico, California · 13499 days ago · 13 km deep · 27 km away
  39. 1.83 km NNW of Aromas, California · 13499 days ago · 10 km deep · 16 km away
  40. 3.42 km NNW of Day Valley, California · 13499 days ago · 12 km deep · 8 km away
  41. 1.92 km WNW of Lexington Hills, California · 13499 days ago · 8 km deep · 25 km away
  42. 1.76 km S of Lexington Hills, California · 13499 days ago · 15 km deep · 18 km away
  43. 3.02 km SSW of Lexington Hills, California · 13499 days ago · 14 km deep · 22 km away
  44. 1.51 km WSW of Lexington Hills, California · 13499 days ago · 10 km deep · 24 km away
  45. 1.74 km NNE of Corralitos, California · 13499 days ago · 14 km deep · 3 km away
  46. 2.741 km SSW of South Dos Palos, California · 13499 days ago · 1 km deep · 94 km away
  47. 1.61 km SSE of Lexington Hills, California · 13499 days ago · 8 km deep · 22 km away
  48. 2.35 km ENE of Day Valley, California · 13499 days ago · 4 km deep · 6 km away
  49. 1.95 km ESE of Lexington Hills, California · 13499 days ago · 9 km deep · 18 km away
  50. 2.26 km ENE of Day Valley, California · 13499 days ago · 5 km deep · 6 km away
  51. 1.81 km ENE of Corralitos, California · 13499 days ago · 12 km deep · 2 km away
  52. 1.85 km NNW of Aromas, California · 13499 days ago · 6 km deep · 15 km away
  53. 2.01 km S of Portola Valley, California · 13499 days ago · 10 km deep · 56 km away
  54. 2.96 km ENE of Day Valley, California · 13499 days ago · 5 km deep · 6 km away
  55. 2.00 km E of Lexington Hills, California · 13499 days ago · 7 km deep · 23 km away
  56. 1.86 km N of Day Valley, California · 13499 days ago · 3 km deep · 11 km away
  57. 1.78 km N of Day Valley, California · 13499 days ago · 4 km deep · 13 km away
  58. 1.91 km SSE of Saratoga, California · 13499 days ago · 5 km deep · 33 km away
  59. 3.28 km SE of Lexington Hills, California · 13499 days ago · 10 km deep · 15 km away
  60. 1.50 km NNW of Lexington Hills, California · 13499 days ago · 7 km deep · 24 km away

The first 60 of at least 202.

Before

  1. 1.74 km N of Corralitos, California · 13499 days ago · 13 km deep · 2 km away
  2. 3.18 km SSE of Lexington Hills, California · 13499 days ago · 10 km deep · 15 km away
  3. 1.93 km E of Corralitos, California · 13499 days ago · 14 km deep · 3 km away
  4. 1.65 km E of Day Valley, California · 13499 days ago · 1 km deep · 4 km away
  5. 1.64 km ENE of Day Valley, California · 13499 days ago · 5 km deep · 6 km away
  6. 2.43 km S of Lexington Hills, California · 13499 days ago · 14 km deep · 21 km away
  7. 1.96 km NNE of Corralitos, California · 13499 days ago · 2 km deep · 5 km away
  8. 1.85 km SSW of Lexington Hills, California · 13499 days ago · 18 km deep · 21 km away
  9. 1.93 km S of Lexington Hills, California · 13499 days ago · 11 km deep · 20 km away
  10. 1.7Central California · 13499 days ago · 6 km deep · 15 km away
  11. 1.6Northern California · 13499 days ago · 16 km deep · 12 km away
  12. 2.02 km SSE of San Ramon, California · 13499 days ago · 8 km deep · 85 km away
  13. 1.67 km ENE of Scotts Valley, California · 13499 days ago · 16 km deep · 14 km away
  14. 1.7Central California · 13499 days ago · 14 km deep · 7 km away
  15. 1.58 km SE of Lexington Hills, California · 13499 days ago · 4 km deep · 15 km away
  16. 2.54 km NNW of Aromas, California · 13499 days ago · 8 km deep · 15 km away
  17. 2.85 km SE of Aromas, California · 13499 days ago · 6 km deep · 24 km away
  18. 2.47 km ENE of Day Valley, CA · 13499 days ago · 6 km deep · 5 km away
  19. 2.62 km NNE of Day Valley, California · 13499 days ago · 12 km deep · 7 km away
  20. 2.92 km WSW of Lexington Hills, California · 13499 days ago · 12 km deep · 24 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc20091329. Read Sat, Oct 3, 2026, 6:01 PM UTC.