California earthquakes

M1.7 earthquake 9km WSW of Anza, CA

A magnitude 1.7 earthquake struck 9km WSW of Anza, CA on Sat, Jan 31, 1981, 10:08 AM PST (18:08 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M1.9 7km SSW of Salton City, CA. This one was a foreshock.

Anza 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
1.7 (mh), micro
Local time
UTC
1981-01-31 18:08:25 UTC
Depth
14.0 km (8.7 mi), shallow
Epicenter
33.526° N, 116.768° 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 1.0 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
134°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 188 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.97km SSW of Salton City, CA · 16664 days ago · 6 km deep · 79 km away
  2. 1.613km NNE of Indio, CA · 16664 days ago · 8 km deep · 64 km away
  3. 1.99km SW of Salton City, CA · 16664 days ago · 5 km deep · 76 km away
  4. 2.06km SSW of Salton City, CA · 16664 days ago · 5 km deep · 80 km away
  5. 1.69km NE of Aguanga, CA · 16664 days ago · 5 km deep · 4 km away
  6. 1.610km NE of Aguanga, CA · 16663 days ago · 4 km deep · 4 km away
  7. 2.26km SSW of Salton City, CA · 16663 days ago · 6 km deep · 80 km away
  8. 1.711km NE of Aguanga, CA · 16663 days ago · 2 km deep · 3 km away
  9. 2.210km NE of Aguanga, CA · 16662 days ago · 0 km deep · 3 km away
  10. 2.311km SW of Anza, CA · 16662 days ago · 5 km deep · 4 km away
  11. 2.210km WSW of Anza, CA · 16662 days ago · 6 km deep · 2 km away
  12. 1.910km NE of Aguanga, CA · 16662 days ago · 3 km deep · 4 km away
  13. 1.711km SW of Anza, CA · 16662 days ago · 2 km deep · 3 km away
  14. 1.610km WSW of Anza, CA · 16661 days ago · 10 km deep · 2 km away
  15. 1.725km WNW of Ocotillo, CA · 16661 days ago · 5 km deep · 93 km away
  16. 2.19km NE of Aguanga, CA · 16661 days ago · 2 km deep · 4 km away
  17. 2.26km SSW of Redlands, CA · 16661 days ago · 14 km deep · 68 km away
  18. 1.510km NE of Aguanga, CA · 16660 days ago · 5 km deep · 3 km away
  19. 1.88km NE of Aguanga, CA · 16660 days ago · 5 km deep · 5 km away
  20. 1.910km NNW of Twentynine Palms, CA · 16660 days ago · 0 km deep · 99 km away
  21. 1.611km WSW of Corona, CA · 16660 days ago · 5 km deep · 91 km away
  22. 2.48km ENE of Aguanga, CA · 16660 days ago · 3 km deep · 5 km away
  23. 1.59km NE of Aguanga, CA · 16660 days ago · 5 km deep · 4 km away
  24. 2.69km NE of Aguanga, CA · 16660 days ago · 0 km deep · 5 km away
  25. 1.59km NE of Aguanga, CA · 16659 days ago · 5 km deep · 4 km away
  26. 1.620km ESE of Anza, CA · 16659 days ago · 6 km deep · 27 km away
  27. 1.58km NE of Aguanga, CA · 16659 days ago · 5 km deep · 5 km away
  28. 1.719km ESE of Anza, CA · 16659 days ago · 10 km deep · 26 km away
  29. 1.917km ESE of Anza, CA · 16659 days ago · 9 km deep · 25 km away
  30. 1.613km E of Borrego Springs, CA · 16658 days ago · 8 km deep · 57 km away
  31. 1.710km NE of Aguanga, CA · 16658 days ago · 3 km deep · 3 km away
  32. 2.010km NE of Aguanga, CA · 16658 days ago · 1 km deep · 3 km away
  33. 2.09km NE of Aguanga, CA · 16658 days ago · 2 km deep · 4 km away
  34. 1.99km NE of Aguanga, CA · 16658 days ago · 4 km deep · 4 km away
  35. 1.89km NE of Aguanga, CA · 16658 days ago · 4 km deep · 5 km away
  36. 2.68km NE of Aguanga, CA · 16658 days ago · 3 km deep · 5 km away
  37. 2.18km NE of Aguanga, CA · 16658 days ago · 4 km deep · 5 km away
  38. 2.29km NE of Aguanga, CA · 16658 days ago · 5 km deep · 5 km away
  39. 1.910km ENE of Aguanga, CA · 16658 days ago · 5 km deep · 4 km away
  40. 1.510km NE of Aguanga, CA · 16658 days ago · 3 km deep · 3 km away
  41. 1.78km NE of Aguanga, CA · 16658 days ago · 4 km deep · 5 km away
  42. 2.09km NE of Aguanga, CA · 16658 days ago · 2 km deep · 4 km away
  43. 1.68km NNW of Anza, CA · 16658 days ago · 16 km deep · 12 km away
  44. 2.09km NE of Aguanga, CA · 16658 days ago · 5 km deep · 5 km away
  45. 1.511km NE of Aguanga, CA · 16658 days ago · 5 km deep · 2 km away
  46. 1.74km S of Salton City, CA · 16657 days ago · 6 km deep · 81 km away
  47. 2.210km NE of Aguanga, CA · 16656 days ago · 4 km deep · 3 km away
  48. 1.910km NE of Aguanga, CA · 16656 days ago · 3 km deep · 3 km away
  49. 1.611km WSW of Anza, CA · 16656 days ago · 9 km deep · 3 km away
  50. 1.710km NE of Aguanga, CA · 16655 days ago · 4 km deep · 4 km away
  51. 2.210km S of Yucca Valley, CA · 16655 days ago · 5 km deep · 64 km away
  52. 1.910km NE of Desert Hot Springs, CA · 16655 days ago · 6 km deep · 63 km away
  53. 2.310km WSW of Anza, CA · 16655 days ago · 4 km deep · 2 km away
  54. 1.611km WSW of Anza, CA · 16655 days ago · 5 km deep · 2 km away
  55. 1.76km ENE of Running Springs, CA · 16652 days ago · 7 km deep · 82 km away
  56. 2.818km NNE of Pine Valley, CA · 16652 days ago · 5 km deep · 71 km away
  57. 1.78km NE of Aguanga, CA · 16651 days ago · 7 km deep · 5 km away
  58. 1.87km SSE of Redlands, CA · 16651 days ago · 13 km deep · 64 km away
  59. 1.810km S of Idyllwild, CA · 16651 days ago · 15 km deep · 14 km away
  60. 1.98km NE of Aguanga, CA · 16651 days ago · 4 km deep · 5 km away

The first 60 of 188.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci12253907. Read Tue, Sep 22, 2026, 8:51 PM UTC.