M3.0 earthquake 21km ESE of Anza, CA

Magnitude

3.0 (ml), micro

Local time

Tue, Oct 20, 1981, 5:40 AM PDT

UTC

1981-10-20 12:40:55 UTC

Depth

8.9 km (5.5 mi), shallow

Epicenter

33.514° N, 116.452° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.17

Depth from

From location

Station coverage gap

33°

Stations used

58

• La Quinta, CaliforniaPopulation 40,476. Forecast21 kmSW
• Temecula, CaliforniaPopulation 110,003. Forecast65 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast111 kmNE

After

1. 1.99km ENE of Aguanga, CATue, Oct 20, 7:58 AM PDT · 16408 days ago · 4 km deep · 31 km away
2. 2.221km ESE of Anza, CATue, Oct 20, 10:23 AM PDT · 16408 days ago · 11 km deep · 4 km away
3. 2.08km NW of Ocotillo, CATue, Oct 20, 1:09 PM PDT · 16408 days ago · 9 km deep · 90 km away
4. 3.310km NE of Aguanga, CATue, Oct 20, 10:37 PM PDT · 16407 days ago · 6 km deep · 30 km away
5. 1.89km SE of Valle Vista, CAWed, Oct 21, 9:44 AM PDT · 16407 days ago · 16 km deep · 40 km away
6. 1.721km SW of Westmorland, CAWed, Oct 21, 2:53 PM PDT · 16406 days ago · 9 km deep · 89 km away
7. 2.418km N of Ocotillo, CAWed, Oct 21, 9:04 PM PDT · 16406 days ago · 12 km deep · 83 km away
8. 1.79km SE of Big Bear City, CAWed, Oct 21, 9:21 PM PDT · 16406 days ago · 8 km deep · 82 km away
9. 2.56km SSW of Redlands, CAThu, Oct 22, 8:50 PM PDT · 16405 days ago · 12 km deep · 87 km away
10. 2.016km E of Desert Hot Springs, CAFri, Oct 23, 10:34 AM PDT · 16405 days ago · -1 km deep · 51 km away
11. 1.78km NNE of Cabazon, CAFri, Oct 23, 3:40 PM PDT · 16404 days ago · 16 km deep · 58 km away
12. 2.314km SSW of Borrego Springs, CASat, Oct 24, 5:19 AM PDT · 16404 days ago · 8 km deep · 41 km away
13. 2.122km ESE of Anza, CASat, Oct 24, 12:47 PM PDT · 16404 days ago · 6 km deep · 6 km away
14. 1.524km WSW of Westmorland, CASun, Oct 25, 2:27 PM PST · 16402 days ago · 7 km deep · 83 km away
15. 2.211km NNE of Aguanga, CASun, Oct 25, 2:47 PM PST · 16402 days ago · 5 km deep · 32 km away
16. 1.514km WNW of Calipatria, CAMon, Oct 26, 4:55 PM PST · 16401 days ago · 5 km deep · 83 km away
17. 2.916km NNE of Borrego Springs, CAMon, Oct 26, 6:56 PM PST · 16401 days ago · 14 km deep · 20 km away
18. 2.014km NE of Thousand Palms, CATue, Oct 27, 9:34 AM PST · 16401 days ago · 6 km deep · 46 km away
19. 1.523km ESE of Anza, CATue, Oct 27, 6:59 PM PST · 16400 days ago · 10 km deep · 4 km away
20. 1.72km ESE of Loma Linda, CAWed, Oct 28, 2:45 AM PST · 16400 days ago · 17 km deep · 94 km away
21. 1.610km ENE of Aguanga, CAThu, Oct 29, 2:47 AM PST · 16399 days ago · 4 km deep · 30 km away
22. 1.912km SE of Anza, CAThu, Oct 29, 6:03 AM PST · 16399 days ago · 4 km deep · 14 km away
23. 1.621km N of Yucca Valley, CAFri, Oct 30, 8:11 AM PST · 16398 days ago · 0 km deep · 88 km away
24. 1.96km W of Westmorland, CAFri, Oct 30, 9:30 AM PST · 16398 days ago · 5 km deep · 89 km away
25. 2.111km SW of Salton City, CAFri, Oct 30, 6:18 PM PST · 16397 days ago · 6 km deep · 49 km away
26. 1.513km SSW of Borrego Springs, CASat, Oct 31, 8:16 AM PST · 16397 days ago · 6 km deep · 39 km away
27. 2.69km ENE of Aguanga, CASat, Oct 31, 11:51 AM PST · 16397 days ago · 4 km deep · 30 km away
28. 1.99km ENE of Aguanga, CASat, Oct 31, 2:22 PM PST · 16396 days ago · 4 km deep · 30 km away
29. 1.812km SSE of Bombay Beach, CASun, Nov 1, 11:34 PM PST · 16395 days ago · 5 km deep · 77 km away
30. 1.75km N of Big Bear City, CAMon, Nov 2, 10:06 AM PST · 16395 days ago · 0 km deep · 95 km away
31. 1.523km SSW of Ocotillo Wells, CAMon, Nov 2, 8:18 PM PST · 16394 days ago · 5 km deep · 65 km away
32. 1.511km NNE of Borrego Springs, CATue, Nov 3, 2:26 AM PST · 16394 days ago · 11 km deep · 21 km away
33. 1.88km NNE of San Jacinto, CATue, Nov 3, 5:09 AM PST · 16394 days ago · 12 km deep · 57 km away
34. 1.510km WSW of Anza, CATue, Nov 3, 6:10 AM PST · 16394 days ago · 4 km deep · 30 km away
35. 1.56km NNW of Ocotillo Wells, CAThu, Nov 5, 6:11 PM PST · 16391 days ago · 8 km deep · 45 km away
36. 1.68km NNW of Big Bear City, CAFri, Nov 6, 7:49 AM PST · 16391 days ago · 9 km deep · 98 km away
37. 2.112km SE of Bombay Beach, CAFri, Nov 6, 9:59 AM PST · 16391 days ago · 4 km deep · 78 km away
38. 1.522km N of Yucca Valley, CAFri, Nov 6, 2:20 PM PST · 16390 days ago · 3 km deep · 88 km away
39. 1.528km ENE of Pine Valley, CASat, Nov 7, 10:00 AM PST · 16390 days ago · 5 km deep · 70 km away
40. 1.622km N of Yucca Valley, CASat, Nov 7, 4:05 PM PST · 16389 days ago · 0 km deep · 89 km away
41. 1.712km N of Banning, CASat, Nov 7, 6:40 PM PST · 16389 days ago · 15 km deep · 68 km away
42. 1.70km W of Julian, CAMon, Nov 9, 3:17 AM PST · 16388 days ago · 15 km deep · 50 km away
43. 1.615km N of Borrego Springs, CAMon, Nov 9, 3:18 PM PST · 16387 days ago · 2 km deep · 16 km away
44. 1.526km WNW of Desert Center, CAWed, Nov 11, 1:59 PM PST · 16385 days ago · 5 km deep · 78 km away
45. 2.310km NE of Julian, CAThu, Nov 12, 12:18 AM PST · 16385 days ago · 10 km deep · 43 km away
46. 1.724km NNW of Borrego Springs, CAFri, Nov 13, 3:11 AM PST · 16384 days ago · 9 km deep · 6 km away
47. 1.65km ENE of Joshua Tree, CAFri, Nov 13, 5:58 AM PST · 16384 days ago · -1 km deep · 73 km away
48. 1.822km SW of Ocotillo Wells, CAFri, Nov 13, 5:59 AM PST · 16384 days ago · 5 km deep · 61 km away
49. 2.37km ENE of Joshua Tree, CAFri, Nov 13, 8:45 AM PST · 16384 days ago · -1 km deep · 74 km away
50. 2.014km SE of Anza, CASat, Nov 14, 12:58 AM PST · 16383 days ago · 10 km deep · 12 km away
51. 1.65km ESE of Temecula, CAMon, Nov 16, 7:06 AM PST · 16381 days ago · 6 km deep · 60 km away
52. 2.115km SSE of Anza, CAMon, Nov 16, 1:59 PM PST · 16380 days ago · 12 km deep · 15 km away
53. 1.511km SW of Anza, CATue, Nov 17, 12:04 PM PST · 16380 days ago · 3 km deep · 29 km away
54. 1.85km SE of Temecula, CATue, Nov 17, 10:54 PM PST · 16379 days ago · 7 km deep · 61 km away
55. 1.95km SE of Temecula, CAWed, Nov 18, 1:08 AM PST · 16379 days ago · 7 km deep · 61 km away
56. 1.58km E of Borrego Springs, CAWed, Nov 18, 4:05 PM PST · 16378 days ago · 5 km deep · 31 km away
57. 1.518km ESE of Anza, CAThu, Nov 19, 1:19 AM PST · 16378 days ago · 9 km deep · 6 km away
58. 1.66km SE of Temecula, CAThu, Nov 19, 10:31 AM PST · 16378 days ago · 8 km deep · 61 km away
59. 2.14km S of Loma Linda, CAThu, Nov 19, 9:37 PM PST · 16377 days ago · 11 km deep · 93 km away
60. 1.72km NNE of Loma Linda, CAFri, Nov 20, 11:59 AM PST · 16377 days ago · 14 km deep · 96 km away

The first 60 of 125.

Before

1. 1.624km N of Yucca Valley, CAMon, Oct 19, 3:16 PM PDT · 16408 days ago · 1 km deep · 91 km away
2. 3.024km N of Yucca Valley, CAMon, Oct 19, 2:43 PM PDT · 16408 days ago · 1 km deep · 90 km away
3. 2.317km NW of Yucca Valley, CAMon, Oct 19, 9:04 AM PDT · 16409 days ago · 8 km deep · 79 km away
4. 1.69km SW of Idyllwild, CAMon, Oct 19, 4:23 AM PDT · 16409 days ago · 13 km deep · 38 km away
5. 1.625km ENE of Pine Valley, CAMon, Oct 19, 12:11 AM PDT · 16409 days ago · 6 km deep · 66 km away
6. 2.013km SE of Anza, CASun, Oct 18, 8:10 PM PDT · 16409 days ago · 7 km deep · 11 km away
7. 2.29km ENE of Aguanga, CASun, Oct 18, 6:58 PM PDT · 16409 days ago · 2 km deep · 31 km away
8. 1.611km SW of Anza, CASat, Oct 17, 6:16 PM PDT · 16410 days ago · 3 km deep · 29 km away
9. 2.112km NE of Ocotillo Wells, CASat, Oct 17, 5:07 PM PDT · 16410 days ago · 7 km deep · 48 km away
10. 2.112km NE of Ocotillo Wells, CASat, Oct 17, 2:49 PM PDT · 16410 days ago · 4 km deep · 49 km away
11. 1.612km SW of Salton City, CASat, Oct 17, 1:16 PM PDT · 16411 days ago · 6 km deep · 49 km away
12. 1.811km SW of Salton City, CASat, Oct 17, 1:00 PM PDT · 16411 days ago · 5 km deep · 48 km away
13. 1.712km NE of Ocotillo Wells, CASat, Oct 17, 1:00 PM PDT · 16411 days ago · 5 km deep · 49 km away
14. 3.112km NNE of Ocotillo Wells, CASat, Oct 17, 12:54 PM PDT · 16411 days ago · 5 km deep · 48 km away
15. 2.212km NE of Ocotillo Wells, CASat, Oct 17, 12:53 PM PDT · 16411 days ago · 6 km deep · 48 km away
16. 2.011km NNE of Ocotillo Wells, CASat, Oct 17, 12:51 PM PDT · 16411 days ago · 5 km deep · 48 km away
17. 2.112km NE of Ocotillo Wells, CASat, Oct 17, 12:50 PM PDT · 16411 days ago · 5 km deep · 51 km away
18. 1.712km NNE of Ocotillo Wells, CASat, Oct 17, 12:49 PM PDT · 16411 days ago · 3 km deep · 48 km away
19. 3.712km SW of Salton City, CASat, Oct 17, 12:47 PM PDT · 16411 days ago · 15 km deep · 49 km away
20. 2.012km SW of Salton City, CASat, Oct 17, 12:36 PM PDT · 16411 days ago · 5 km deep · 49 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci525856 (also filed as usp0001gk8). Read Tue, Sep 22, 2026, 8:22 AM UTC.