California earthquakes

M1.9 earthquake 21km ESE of Anza, CA

A magnitude 1.9 earthquake struck 21km ESE of Anza, CA on Mon, May 4, 1981, 11:43 AM PDT (18:43 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M2.2 11km NE of Aguanga, 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
1.9 (ml), micro
Local time
UTC
1981-05-04 18:43:06 UTC
Depth
12.0 km (7.5 mi), shallow
Epicenter
33.485° N, 116.465° 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 0.4 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
39°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 192 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.634km NNE of North Shore, CA · 16543 days ago · 3 km deep · 72 km away
  2. 1.56km WNW of Anza, CA · 16543 days ago · 1 km deep · 27 km away
  3. 2.211km NE of Aguanga, CA · 16543 days ago · -1 km deep · 30 km away
  4. 1.94km SW of Ocotillo, CA · 16542 days ago · 7 km deep · 96 km away
  5. 2.15km SSW of Salton City, CA · 16542 days ago · 5 km deep · 52 km away
  6. 1.97km S of Salton City, CA · 16542 days ago · 4 km deep · 54 km away
  7. 2.87km S of Salton City, CA · 16542 days ago · 5 km deep · 54 km away
  8. 1.87km S of Salton City, CA · 16541 days ago · 1 km deep · 55 km away
  9. 1.814km ENE of Borrego Springs, CA · 16541 days ago · 9 km deep · 27 km away
  10. 1.67km S of Salton City, CA · 16540 days ago · 4 km deep · 54 km away
  11. 2.07km S of Salton City, CA · 16540 days ago · 5 km deep · 54 km away
  12. 2.37km SSW of Salton City, CA · 16540 days ago · 5 km deep · 53 km away
  13. 1.56km SSW of Salton City, CA · 16540 days ago · 4 km deep · 53 km away
  14. 1.634km NNE of North Shore, CA · 16540 days ago · 4 km deep · 73 km away
  15. 1.66km SSW of Salton City, CA · 16540 days ago · 4 km deep · 53 km away
  16. 2.57km SSW of Salton City, CA · 16540 days ago · 5 km deep · 54 km away
  17. 2.617km W of Westmorland, CA · 16539 days ago · 10 km deep · 81 km away
  18. 1.617km W of Westmorland, CA · 16539 days ago · 5 km deep · 81 km away
  19. 1.522km NNW of Yucca Valley, CA · 16539 days ago · 1 km deep · 91 km away
  20. 1.76km W of Westmorland, CA · 16539 days ago · 8 km deep · 87 km away
  21. 3.66km SSW of Salton City, CA · 16538 days ago · 5 km deep · 53 km away
  22. 2.67km SSW of Salton City, CA · 16538 days ago · 5 km deep · 53 km away
  23. 1.713km S of Salton City, CA · 16538 days ago · 3 km deep · 59 km away
  24. 1.87km SSW of Salton City, CA · 16537 days ago · 4 km deep · 53 km away
  25. 1.67km SSW of Salton City, CA · 16537 days ago · 4 km deep · 53 km away
  26. 1.67km S of Salton City, CA · 16537 days ago · 4 km deep · 54 km away
  27. 1.514km N of Warner Springs, CA · 16537 days ago · 10 km deep · 16 km away
  28. 1.85km SSW of Salton City, CA · 16537 days ago · 4 km deep · 53 km away
  29. 1.77km S of Salton City, CA · 16537 days ago · 4 km deep · 54 km away
  30. 1.514km ENE of Thousand Palms, CA · 16537 days ago · 3 km deep · 47 km away
  31. 1.914km ENE of Indio, CA · 16537 days ago · -1 km deep · 49 km away
  32. 1.614km ENE of Indio, CA · 16536 days ago · 1 km deep · 49 km away
  33. 1.615km ENE of Indio, CA · 16536 days ago · -1 km deep · 49 km away
  34. 1.515km ENE of Indio, CA · 16536 days ago · 5 km deep · 49 km away
  35. 1.814km ENE of Indio, CA · 16536 days ago · -1 km deep · 49 km away
  36. 1.87km SSW of Salton City, CA · 16536 days ago · 4 km deep · 53 km away
  37. 1.77km S of Salton City, CA · 16536 days ago · 4 km deep · 54 km away
  38. 1.87km SSW of Salton City, CA · 16536 days ago · 4 km deep · 53 km away
  39. 1.78km NE of Calipatria, CA · 16536 days ago · 8 km deep · 100 km away
  40. 1.76km SSW of Salton City, CA · 16536 days ago · 4 km deep · 53 km away
  41. 1.76km SSW of Salton City, CA · 16536 days ago · 4 km deep · 53 km away
  42. 1.97km SSW of Salton City, CA · 16536 days ago · 3 km deep · 53 km away
  43. 2.17km ESE of Running Springs, CA · 16536 days ago · 6 km deep · 94 km away
  44. 1.59km NE of Cabazon, CA · 16536 days ago · 12 km deep · 58 km away
  45. 1.514km ENE of Thousand Palms, CA · 16536 days ago · 3 km deep · 47 km away
  46. 1.511km NE of Aguanga, CA · 16535 days ago · 3 km deep · 29 km away
  47. 1.614km ENE of Thousand Palms, CA · 16535 days ago · 3 km deep · 47 km away
  48. 1.612km NE of Cabazon, CA · 16535 days ago · 14 km deep · 60 km away
  49. 1.58km SSE of Bombay Beach, CA · 16534 days ago · 8 km deep · 75 km away
  50. 2.08km SSE of Bombay Beach, CA · 16534 days ago · 5 km deep · 74 km away
  51. 1.58km SSE of Bombay Beach, CA · 16534 days ago · 6 km deep · 75 km away
  52. 2.013km ENE of Thousand Palms, CA · 16534 days ago · 0 km deep · 47 km away
  53. 1.514km ENE of Thousand Palms, CA · 16534 days ago · 3 km deep · 47 km away
  54. 1.87km SSW of Salton City, CA · 16534 days ago · 4 km deep · 53 km away
  55. 1.914km ENE of Thousand Palms, CA · 16534 days ago · 0 km deep · 47 km away
  56. 1.96km SSW of Salton City, CA · 16534 days ago · 4 km deep · 53 km away
  57. 3.113km ENE of Thousand Palms, CA · 16534 days ago · 2 km deep · 46 km away
  58. 1.914km ENE of Thousand Palms, CA · 16534 days ago · 3 km deep · 47 km away
  59. 2.313km ENE of Thousand Palms, CA · 16534 days ago · -1 km deep · 46 km away
  60. 2.96km SSW of Salton City, CA · 16534 days ago · 5 km deep · 53 km away

The first 60 of 192.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci515374. Read Tue, Sep 22, 2026, 4:04 PM UTC.