California earthquakes

M1.8 earthquake 21km NW of Grapevine, CA

A magnitude 1.8 earthquake struck 21km NW of Grapevine, CA on Mon, Apr 9, 1990, 8:37 AM PDT (15:37 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M2.8 7km SSE of Santa Clarita, CA. 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
1.8 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1990-04-09 15:37:32 UTC
Depth
18.8 km (11.7 mi), shallow
Epicenter
35.072° N, 119.094° 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.

Depth from
From location
Station coverage gap
143°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 70 in the 60 days after this one and 34 in the 30 days before it.

After

  1. 2.07km ESE of Lake Isabella, CA · 13327 days ago · 5 km deep · 86 km away
  2. 2.120km NNW of Mojave, CA · 13326 days ago · 3 km deep · 81 km away
  3. 2.87km SSE of Santa Clarita, CA · 13323 days ago · 1 km deep · 98 km away
  4. 2.024km NE of Lamont, CA · 13321 days ago · 2 km deep · 50 km away
  5. 1.624km NE of Lamont, CA · 13321 days ago · 3 km deep · 51 km away
  6. 1.821km NNE of Carpinteria, CA · 13318 days ago · 4 km deep · 64 km away
  7. 2.06km NW of Wofford Heights, CA · 13318 days ago · 6 km deep · 92 km away
  8. 1.913km S of Bodfish, CA · 13317 days ago · 7 km deep · 69 km away
  9. 2.41km NW of Frazier Park, CA · 13317 days ago · 13 km deep · 30 km away
  10. 2.325km NE of Lamont, CA · 13317 days ago · 3 km deep · 51 km away
  11. 1.614km WSW of Lake Hughes, CA · 13314 days ago · 10 km deep · 68 km away
  12. 2.31km E of Kernville, CA · 13313 days ago · 11 km deep · 98 km away
  13. 1.721km ENE of Arvin, CA · 13312 days ago · 5 km deep · 50 km away
  14. 2.05km WNW of Pine Mountain Club, CA · 13310 days ago · 10 km deep · 26 km away
  15. 1.910km N of Pine Mountain Club, CA · 13308 days ago · 15 km deep · 16 km away
  16. 2.016km WNW of Grapevine, CA · 13307 days ago · 12 km deep · 8 km away
  17. 1.822km SW of Bodfish, CA · 13307 days ago · 3 km deep · 58 km away
  18. 2.11km E of Wofford Heights, CA · 13306 days ago · 3 km deep · 92 km away
  19. 1.621km S of Maricopa, CA · 13303 days ago · 5 km deep · 37 km away
  20. 2.311km N of Piru, CA · 13301 days ago · 11 km deep · 68 km away
  21. 1.514km N of Castaic, CA · 13301 days ago · 5 km deep · 68 km away
  22. 1.933km WSW of Inyokern, CA · 13301 days ago · 4 km deep · 99 km away
  23. 1.64km N of Kernville, CA · 13300 days ago · 5 km deep · 100 km away
  24. 1.54km NE of Lake Isabella, CA · 13299 days ago · 3 km deep · 87 km away
  25. 1.74km NE of Lake Isabella, CA · 13299 days ago · 3 km deep · 87 km away
  26. 1.719km ESE of Bodfish, CA · 13299 days ago · 9 km deep · 86 km away
  27. 1.87km ESE of Bodfish, CA · 13299 days ago · 7 km deep · 82 km away
  28. 1.99km ESE of Pine Mountain Club, CA · 13298 days ago · 15 km deep · 30 km away
  29. 2.214km WSW of Lake Hughes, CA · 13297 days ago · 10 km deep · 67 km away
  30. 1.725km NE of Arvin, CA · 13297 days ago · 2 km deep · 53 km away
  31. 1.712km WNW of Mojave, CA · 13297 days ago · 6 km deep · 73 km away
  32. 2.325km NNW of Tehachapi, CA · 13297 days ago · 6 km deep · 57 km away
  33. 2.026km NNW of Tehachapi, CA · 13296 days ago · 7 km deep · 57 km away
  34. 2.725km NNW of Tehachapi, CA · 13296 days ago · 6 km deep · 57 km away
  35. 2.525km NNW of Tehachapi, CA · 13296 days ago · 7 km deep · 57 km away
  36. 1.725km NNW of Tehachapi, CA · 13296 days ago · 7 km deep · 57 km away
  37. 1.526km NNW of Tehachapi, CA · 13296 days ago · 7 km deep · 57 km away
  38. 2.224km NE of Lamont, CA · 13296 days ago · 2 km deep · 51 km away
  39. 1.613km SSW of Arvin, CA · 13293 days ago · 16 km deep · 21 km away
  40. 2.71km E of Wofford Heights, CA · 13292 days ago · 3 km deep · 92 km away
  41. 2.014km S of Bodfish, CA · 13291 days ago · 3 km deep · 71 km away
  42. 1.924km E of Maricopa, CA · 13290 days ago · 22 km deep · 5 km away
  43. 1.826km NNW of Tehachapi, CA · 13290 days ago · 7 km deep · 57 km away
  44. 1.615km S of Bodfish, CA · 13289 days ago · 3 km deep · 71 km away
  45. 2.37km NE of Lake Isabella, CA · 13289 days ago · 3 km deep · 90 km away
  46. 1.77km S of Frazier Park, CA · 13289 days ago · 10 km deep · 37 km away
  47. 2.07km SSW of Frazier Park, CA · 13289 days ago · 12 km deep · 36 km away
  48. 2.713km S of Arvin, CA · 13287 days ago · 16 km deep · 22 km away
  49. 2.026km NNW of Tehachapi, CA · 13285 days ago · 7 km deep · 57 km away
  50. 1.611km WSW of Grapevine, CA · 13283 days ago · 18 km deep · 20 km away
  51. 2.06km WNW of Grapevine, CA · 13283 days ago · 12 km deep · 15 km away
  52. 1.924km NE of Arvin, CA · 13281 days ago · 6 km deep · 52 km away
  53. 2.123km SSW of Pine Mountain Club, CA · 13280 days ago · 8 km deep · 48 km away
  54. 1.97km WNW of Fillmore, CA · 13280 days ago · 0 km deep · 72 km away
  55. 2.214km WSW of Lake Hughes, CA · 13277 days ago · 8 km deep · 68 km away
  56. 1.720km E of Lake Isabella, CA · 13277 days ago · 10 km deep · 97 km away
  57. 1.619km N of Mojave, CA · 13276 days ago · 2 km deep · 82 km away
  58. 2.419km N of Mojave, CA · 13276 days ago · 4 km deep · 82 km away
  59. 1.918km NNW of Mojave, CA · 13276 days ago · 2 km deep · 82 km away
  60. 1.99km W of Castaic, CA · 13274 days ago · 2 km deep · 74 km away

The first 60 of 70.

Before

  1. 1.619km NNW of Mojave, CA · 13328 days ago · 3 km deep · 82 km away
  2. 1.917km ESE of Arvin, CA · 13329 days ago · 11 km deep · 40 km away
  3. 2.120km ENE of Delano, CA · 13329 days ago · 5 km deep · 83 km away
  4. 1.618km NW of Tehachapi, CA · 13330 days ago · 4 km deep · 52 km away
  5. 1.57km ESE of Lake Isabella, CA · 13330 days ago · 4 km deep · 86 km away
  6. 1.822km SE of Bodfish, CA · 13330 days ago · 9 km deep · 80 km away
  7. 1.719km NNW of Mojave, CA · 13332 days ago · 4 km deep · 81 km away
  8. 2.417km N of Grapevine, CA · 13332 days ago · 25 km deep · 12 km away
  9. 1.79km ESE of Lake Isabella, CA · 13334 days ago · 4 km deep · 86 km away
  10. 1.823km E of Maricopa, CA · 13335 days ago · 22 km deep · 6 km away
  11. 1.617km NE of Lebec, CA · 13338 days ago · 8 km deep · 35 km away
  12. 1.813km WSW of Rosedale, CA · 13338 days ago · 5 km deep · 33 km away
  13. 2.013km WSW of Rosedale, CA · 13338 days ago · 5 km deep · 32 km away
  14. 1.913km WSW of Rosedale, CA · 13338 days ago · 5 km deep · 34 km away
  15. 1.91km N of Kernville, CA · 13340 days ago · 9 km deep · 98 km away
  16. 1.624km SE of Bodfish, CA · 13340 days ago · 11 km deep · 86 km away
  17. 2.213km WSW of Rosedale, CA · 13341 days ago · 5 km deep · 35 km away
  18. 1.815km S of Bodfish, CA · 13343 days ago · 2 km deep · 71 km away
  19. 1.83km WNW of Grapevine, CA · 13345 days ago · 20 km deep · 18 km away
  20. 2.018km NE of Ojai, CA · 13346 days ago · 2 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci1056907. Read Sun, Oct 4, 2026, 3:26 PM UTC.