M2.8 earthquake 22km ESE of Anza, CA

Magnitude

2.8 (ml), micro

Local time

Mon, May 4, 1981, 7:58 AM PDT

UTC

1981-05-04 14:58:08 UTC

Depth

13.8 km (8.6 mi), shallow

Epicenter

33.475° N, 116.458° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 0.8 km in depth

Magnitude uncertainty

±0.13

Depth from

From location

Station coverage gap

32°

Stations used

45

• Anza, CaliforniaPopulation 3,014. Forecast22 kmESE
• La Quinta, CaliforniaPopulation 40,476. Forecast25 kmSSW
• Temecula, CaliforniaPopulation 110,003. Forecast64 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast107 kmNE

After

1. 1.66km ESE of Niland, CAMon, May 4, 8:25 AM PDT · 16584 days ago · 4 km deep · 97 km away
2. 1.54km SE of Niland, CAMon, May 4, 10:08 AM PDT · 16584 days ago · 8 km deep · 95 km away
3. 3.023km ESE of Anza, CAMon, May 4, 11:41 AM PDT · 16584 days ago · 14 km deep · 1 km away
4. 1.921km ESE of Anza, CAMon, May 4, 11:43 AM PDT · 16584 days ago · 12 km deep · 1 km away
5. 2.422km ESE of Anza, CAMon, May 4, 11:49 AM PDT · 16584 days ago · 12 km deep · 1 km away
6. 1.821km ESE of Anza, CAMon, May 4, 11:51 AM PDT · 16584 days ago · 13 km deep · 1 km away
7. 2.412km WSW of Niland, CAMon, May 4, 12:29 PM PDT · 16584 days ago · 12 km deep · 82 km away
8. 1.612km WSW of Niland, CAMon, May 4, 2:54 PM PDT · 16584 days ago · 8 km deep · 82 km away
9. 1.74km ESE of Niland, CAMon, May 4, 4:07 PM PDT · 16584 days ago · 3 km deep · 95 km away
10. 1.76km W of Westmorland, CAMon, May 4, 4:34 PM PDT · 16584 days ago · 9 km deep · 87 km away
11. 1.712km WSW of Niland, CAMon, May 4, 5:25 PM PDT · 16584 days ago · 9 km deep · 82 km away
12. 1.67km W of Westmorland, CAMon, May 4, 5:45 PM PDT · 16584 days ago · 10 km deep · 86 km away
13. 1.911km WSW of Niland, CAMon, May 4, 7:49 PM PDT · 16584 days ago · 11 km deep · 83 km away
14. 1.57km WSW of Calipatria, CAMon, May 4, 9:52 PM PDT · 16584 days ago · 10 km deep · 91 km away
15. 2.28km S of Calimesa, CAMon, May 4, 10:15 PM PDT · 16584 days ago · 12 km deep · 75 km away
16. 2.012km WSW of Niland, CAMon, May 4, 11:28 PM PDT · 16584 days ago · 9 km deep · 82 km away
17. 1.512km WSW of Niland, CATue, May 5, 1:48 AM PDT · 16584 days ago · 11 km deep · 82 km away
18. 1.76km ESE of Niland, CATue, May 5, 2:58 AM PDT · 16584 days ago · 4 km deep · 97 km away
19. 1.58km NE of Borrego Springs, CATue, May 5, 4:08 AM PDT · 16584 days ago · 10 km deep · 22 km away
20. 1.812km WSW of Niland, CATue, May 5, 4:47 AM PDT · 16584 days ago · 11 km deep · 82 km away
21. 1.612km WSW of Niland, CATue, May 5, 5:20 AM PDT · 16583 days ago · 10 km deep · 82 km away
22. 1.821km WSW of Westmorland, CATue, May 5, 10:10 AM PDT · 16583 days ago · 7 km deep · 85 km away
23. 1.95km ESE of Niland, CATue, May 5, 10:36 AM PDT · 16583 days ago · 5 km deep · 96 km away
24. 2.06km N of Westmorland, CATue, May 5, 11:11 AM PDT · 16583 days ago · 10 km deep · 88 km away
25. 1.913km WSW of Westmorland, CATue, May 5, 6:12 PM PDT · 16583 days ago · 6 km deep · 87 km away
26. 1.612km WSW of Niland, CATue, May 5, 9:45 PM PDT · 16583 days ago · 9 km deep · 83 km away
27. 1.610km NE of Aguanga, CATue, May 5, 10:17 PM PDT · 16583 days ago · 3 km deep · 30 km away
28. 1.87km WSW of Westmorland, CAWed, May 6, 1:14 AM PDT · 16583 days ago · 9 km deep · 87 km away
29. 1.812km WSW of Niland, CAWed, May 6, 2:29 AM PDT · 16583 days ago · 10 km deep · 82 km away
30. 1.57km W of Westmorland, CAWed, May 6, 3:32 AM PDT · 16583 days ago · 4 km deep · 86 km away
31. 1.85km N of Westmorland, CAWed, May 6, 10:45 AM PDT · 16582 days ago · 10 km deep · 90 km away
32. 1.511km WSW of Anza, CAWed, May 6, 11:56 AM PDT · 16582 days ago · 3 km deep · 30 km away
33. 2.513km WSW of Westmorland, CAWed, May 6, 3:42 PM PDT · 16582 days ago · 11 km deep · 86 km away
34. 1.612km WSW of Westmorland, CAWed, May 6, 4:26 PM PDT · 16582 days ago · 5 km deep · 85 km away
35. 1.910km ENE of Aguanga, CAWed, May 6, 6:26 PM PDT · 16582 days ago · 2 km deep · 29 km away
36. 1.610km WSW of Garnet, CAWed, May 6, 10:10 PM PDT · 16582 days ago · 14 km deep · 49 km away
37. 1.510km ESE of Ocotillo Wells, CAThu, May 7, 2:54 AM PDT · 16582 days ago · 4 km deep · 57 km away
38. 1.58km WSW of Westmorland, CAThu, May 7, 4:39 AM PDT · 16582 days ago · 8 km deep · 86 km away
39. 1.630km WNW of Desert Center, CAThu, May 7, 5:07 AM PDT · 16581 days ago · 5 km deep · 80 km away
40. 1.620km NE of Thousand Palms, CAThu, May 7, 1:17 PM PDT · 16581 days ago · 10 km deep · 57 km away
41. 1.515km S of Salton City, CAThu, May 7, 4:45 PM PDT · 16581 days ago · 8 km deep · 59 km away
42. 1.69km WSW of Niland, CAFri, May 8, 8:37 AM PDT · 16580 days ago · 5 km deep · 84 km away
43. 2.09km WSW of Niland, CAFri, May 8, 8:40 AM PDT · 16580 days ago · 6 km deep · 83 km away
44. 1.810km WSW of Niland, CAFri, May 8, 8:54 AM PDT · 16580 days ago · 5 km deep · 83 km away
45. 1.710km NE of Aguanga, CAFri, May 8, 1:21 PM PDT · 16580 days ago · 2 km deep · 30 km away
46. 1.77km W of Westmorland, CAFri, May 8, 4:24 PM PDT · 16580 days ago · 9 km deep · 87 km away
47. 2.06km WSW of Calipatria, CASat, May 9, 7:17 AM PDT · 16579 days ago · 7 km deep · 91 km away
48. 1.526km ENE of Pine Valley, CASat, May 9, 7:55 AM PDT · 16579 days ago · 6 km deep · 61 km away
49. 1.613km WSW of Westmorland, CASat, May 9, 8:16 AM PDT · 16579 days ago · 6 km deep · 86 km away
50. 1.912km WSW of Westmorland, CASat, May 9, 10:07 AM PDT · 16579 days ago · 8 km deep · 87 km away
51. 1.913km WSW of Westmorland, CASat, May 9, 10:29 AM PDT · 16579 days ago · 10 km deep · 87 km away
52. 1.511km ENE of Ocotillo Wells, CASat, May 9, 11:49 AM PDT · 16579 days ago · 7 km deep · 51 km away
53. 2.06km ENE of Joshua Tree, CASat, May 9, 12:25 PM PDT · 16579 days ago · 0 km deep · 78 km away
54. 1.55km NNW of Westmorland, CASat, May 9, 7:09 PM PDT · 16579 days ago · 5 km deep · 88 km away
55. 1.66km ESE of Niland, CASat, May 9, 7:46 PM PDT · 16579 days ago · 4 km deep · 97 km away
56. 1.84km ESE of Niland, CASat, May 9, 8:42 PM PDT · 16579 days ago · 5 km deep · 95 km away
57. 1.82km SSE of Yucca Valley, CASun, May 10, 7:18 AM PDT · 16578 days ago · 6 km deep · 69 km away
58. 1.713km NNE of Borrego Springs, CASun, May 10, 9:46 AM PDT · 16578 days ago · 4 km deep · 18 km away
59. 1.76km ESE of Niland, CASun, May 10, 2:19 PM PDT · 16578 days ago · 5 km deep · 97 km away
60. 2.010km ENE of Indio, CAMon, May 11, 6:46 AM PDT · 16577 days ago · -1 km deep · 45 km away

The first 60 of 183.

Before

1. 1.58km ESE of Niland, CAMon, May 4, 7:15 AM PDT · 16584 days ago · 4 km deep · 99 km away
2. 1.76km ESE of Niland, CAMon, May 4, 5:08 AM PDT · 16584 days ago · 5 km deep · 97 km away
3. 1.625km ENE of Pine Valley, CAMon, May 4, 5:07 AM PDT · 16584 days ago · 6 km deep · 63 km away
4. 2.15km ESE of Niland, CAMon, May 4, 4:51 AM PDT · 16585 days ago · 11 km deep · 96 km away
5. 1.87km W of Westmorland, CAMon, May 4, 4:28 AM PDT · 16585 days ago · 11 km deep · 85 km away
6. 1.67km W of Westmorland, CAMon, May 4, 4:09 AM PDT · 16585 days ago · 10 km deep · 86 km away
7. 1.87km SE of Niland, CAMon, May 4, 3:46 AM PDT · 16585 days ago · 7 km deep · 97 km away
8. 1.621km ESE of Anza, CAMon, May 4, 3:33 AM PDT · 16585 days ago · 9 km deep · 4 km away
9. 1.57km ESE of Niland, CAMon, May 4, 2:14 AM PDT · 16585 days ago · 3 km deep · 98 km away
10. 2.15km ESE of Niland, CAMon, May 4, 1:58 AM PDT · 16585 days ago · 9 km deep · 96 km away
11. 2.26km ESE of Niland, CAMon, May 4, 12:00 AM PDT · 16585 days ago · 4 km deep · 97 km away
12. 2.612km WSW of Niland, CASun, May 3, 11:58 PM PDT · 16585 days ago · 14 km deep · 81 km away
13. 1.67km ESE of Niland, CASun, May 3, 11:49 PM PDT · 16585 days ago · 5 km deep · 98 km away
14. 1.86km ESE of Niland, CASun, May 3, 11:28 PM PDT · 16585 days ago · 5 km deep · 97 km away
15. 1.76km ESE of Niland, CASun, May 3, 10:34 PM PDT · 16585 days ago · 4 km deep · 97 km away
16. 2.04km SE of Niland, CASun, May 3, 8:35 PM PDT · 16585 days ago · 11 km deep · 95 km away
17. 1.76km W of Westmorland, CASun, May 3, 8:23 PM PDT · 16585 days ago · 11 km deep · 87 km away
18. 1.56km ESE of Niland, CASun, May 3, 7:34 PM PDT · 16585 days ago · 3 km deep · 97 km away
19. 1.57km ESE of Niland, CASun, May 3, 6:48 PM PDT · 16585 days ago · 3 km deep · 98 km away
20. 1.86km ESE of Niland, CASun, May 3, 6:46 PM PDT · 16585 days ago · 4 km deep · 96 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci515352. Read Tue, Sep 29, 2026, 11:25 PM UTC.