M1.8 earthquake 10km WSW of Anza, CA

Magnitude

1.8 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Wed, Jan 21, 1981, 10:00 PM PST

UTC

1981-01-22 06:00:18 UTC

Depth

4.6 km (2.9 mi), shallow

Epicenter

33.508° N, 116.772° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 13.3 km in depth

Magnitude uncertainty

±0.41

Depth from

From location

Station coverage gap

107°

Stations used

6

• Anza, CaliforniaPopulation 3,014. Forecast10 kmWSW
• Valle Vista, CaliforniaPopulation 14,578. Forecast29 kmSSE
• Temecula, CaliforniaPopulation 110,003. Forecast35 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast95 kmNNE

After

1. 1.86km SSW of Salton City, CAThu, Jan 22, 2:40 AM PST · 16692 days ago · 6 km deep · 79 km away
2. 1.510km NE of Aguanga, CAThu, Jan 22, 3:14 PM PST · 16691 days ago · 4 km deep · 2 km away
3. 1.810km NE of Aguanga, CAThu, Jan 22, 7:36 PM PST · 16691 days ago · 4 km deep · 1 km away
4. 2.15km SSW of Salton City, CAThu, Jan 22, 9:59 PM PST · 16691 days ago · 9 km deep · 80 km away
5. 2.96km SSW of Morongo Valley, CAFri, Jan 23, 12:47 AM PST · 16691 days ago · 10 km deep · 56 km away
6. 1.724km NNW of Yucca Valley, CAFri, Jan 23, 10:02 AM PST · 16691 days ago · 2 km deep · 94 km away
7. 2.411km ENE of Thousand Palms, CAFri, Jan 23, 12:26 PM PST · 16691 days ago · -1 km deep · 60 km away
8. 2.016km SSE of Ocotillo Wells, CAFri, Jan 23, 4:36 PM PST · 16690 days ago · 5 km deep · 85 km away
9. 1.626km NE of Pine Valley, CAFri, Jan 23, 5:12 PM PST · 16690 days ago · 6 km deep · 76 km away
10. 1.93km ENE of Moreno Valley, CASat, Jan 24, 4:33 AM PST · 16690 days ago · 12 km deep · 62 km away
11. 1.86km SSE of Crestline, CASat, Jan 24, 2:04 PM PST · 16690 days ago · 1 km deep · 89 km away
12. 2.46km SSW of Salton City, CASun, Jan 25, 7:02 AM PST · 16689 days ago · 10 km deep · 80 km away
13. 1.610km SSW of Idyllwild, CASun, Jan 25, 8:02 PM PST · 16688 days ago · 12 km deep · 17 km away
14. 3.011km NNE of Indio, CASun, Jan 25, 9:23 PM PST · 16688 days ago · 0 km deep · 64 km away
15. 2.92km S of Norco, CAMon, Jan 26, 2:20 AM PST · 16688 days ago · 10 km deep · 84 km away
16. 2.66km SSW of Salton City, CAMon, Jan 26, 8:47 PM PST · 16687 days ago · 5 km deep · 80 km away
17. 2.09km ENE of Aguanga, CATue, Jan 27, 12:28 AM PST · 16687 days ago · 4 km deep · 3 km away
18. 1.66km SSW of Salton City, CATue, Jan 27, 12:31 PM PST · 16687 days ago · 6 km deep · 80 km away
19. 2.27km NNE of Banning, CATue, Jan 27, 2:44 PM PST · 16686 days ago · 7 km deep · 53 km away
20. 1.69km NE of Lake Arrowhead, CATue, Jan 27, 6:18 PM PST · 16686 days ago · 8 km deep · 95 km away
21. 1.69km S of Banning, CATue, Jan 27, 10:23 PM PST · 16686 days ago · 20 km deep · 39 km away
22. 1.89km SSW of Cabazon, CAWed, Jan 28, 12:07 AM PST · 16686 days ago · 15 km deep · 38 km away
23. 1.810km NE of Aguanga, CAWed, Jan 28, 12:59 AM PST · 16686 days ago · 5 km deep · 1 km away
24. 2.110km NE of Aguanga, CAWed, Jan 28, 8:51 PM PST · 16685 days ago · 3 km deep · 2 km away
25. 1.89km WSW of Corona, CAThu, Jan 29, 12:28 AM PST · 16685 days ago · 4 km deep · 89 km away
26. 1.710km NE of Aguanga, CAThu, Jan 29, 1:22 AM PST · 16685 days ago · 3 km deep · 1 km away
27. 1.910km WSW of Anza, CAThu, Jan 29, 6:33 AM PST · 16685 days ago · 14 km deep · 1 km away
28. 2.18km NE of Aguanga, CAThu, Jan 29, 1:10 PM PST · 16685 days ago · 5 km deep · 3 km away
29. 1.611km NNW of Warner Springs, CAThu, Jan 29, 4:38 PM PST · 16684 days ago · 10 km deep · 17 km away
30. 2.110km NE of Aguanga, CAThu, Jan 29, 5:10 PM PST · 16684 days ago · 4 km deep · 1 km away
31. 1.610km NE of Aguanga, CAThu, Jan 29, 9:51 PM PST · 16684 days ago · 12 km deep · 1 km away
32. 2.07km S of Yucca Valley, CAThu, Jan 29, 11:05 PM PST · 16684 days ago · 0 km deep · 68 km away
33. 2.311km WSW of Anza, CAFri, Jan 30, 12:19 AM PST · 16684 days ago · 3 km deep · 1 km away
34. 2.13km NW of Thousand Palms, CAFri, Jan 30, 7:19 AM PST · 16684 days ago · 4 km deep · 50 km away
35. 2.29km NNW of Cabazon, CAFri, Jan 30, 9:15 AM PST · 16684 days ago · 9 km deep · 54 km away
36. 2.221km SE of Ocotillo Wells, CAFri, Jan 30, 4:38 PM PST · 16683 days ago · 12 km deep · 93 km away
37. 1.612km NE of Cabazon, CAFri, Jan 30, 5:18 PM PST · 16683 days ago · 18 km deep · 56 km away
38. 1.525km NNW of Joshua Tree, CAFri, Jan 30, 6:29 PM PST · 16683 days ago · 8 km deep · 99 km away
39. 1.66km W of Palm Springs, CAFri, Jan 30, 7:57 PM PST · 16683 days ago · 12 km deep · 39 km away
40. 1.911km ENE of Aguanga, CASat, Jan 31, 9:49 AM PST · 16683 days ago · 2 km deep · 2 km away
41. 1.79km WSW of Anza, CASat, Jan 31, 10:08 AM PST · 16683 days ago · 14 km deep · 2 km away
42. 1.810km WSW of Anza, CASat, Jan 31, 12:32 PM PST · 16683 days ago · 12 km deep · 0 km away
43. 1.511km WSW of Anza, CASat, Jan 31, 4:01 PM PST · 16682 days ago · -2 km deep · 0 km away
44. 2.510km NE of Aguanga, CASat, Jan 31, 4:01 PM PST · 16682 days ago · 3 km deep · 2 km away
45. 2.310km NE of Aguanga, CASat, Jan 31, 4:23 PM PST · 16682 days ago · 1 km deep · 2 km away
46. 1.710km NE of Aguanga, CASat, Jan 31, 9:20 PM PST · 16682 days ago · 3 km deep · 1 km away
47. 2.510km NE of Aguanga, CASun, Feb 1, 12:24 AM PST · 16682 days ago · -1 km deep · 1 km away
48. 3.610km ENE of Aguanga, CASun, Feb 1, 3:30 AM PST · 16682 days ago · 6 km deep · 2 km away
49. 3.010km NE of Aguanga, CASun, Feb 1, 3:48 AM PST · 16682 days ago · 2 km deep · 1 km away
50. 2.210km NE of Aguanga, CASun, Feb 1, 3:49 AM PST · 16682 days ago · 4 km deep · 1 km away
51. 1.611km NE of Aguanga, CASun, Feb 1, 4:21 AM PST · 16682 days ago · 9 km deep · 1 km away
52. 1.610km NE of Aguanga, CASun, Feb 1, 5:14 AM PST · 16682 days ago · 4 km deep · 1 km away
53. 2.210km NE of Aguanga, CASun, Feb 1, 5:30 AM PST · 16682 days ago · 0 km deep · 1 km away
54. 1.811km NE of Aguanga, CASun, Feb 1, 5:40 AM PST · 16682 days ago · 5 km deep · 1 km away
55. 1.610km WSW of Anza, CASun, Feb 1, 9:23 AM PST · 16682 days ago · 5 km deep · 1 km away
56. 3.29km ENE of Aguanga, CASun, Feb 1, 11:27 AM PST · 16682 days ago · 1 km deep · 2 km away
57. 2.29km NE of Aguanga, CASun, Feb 1, 1:07 PM PST · 16682 days ago · 1 km deep · 2 km away
58. 1.710km NE of Aguanga, CASun, Feb 1, 2:02 PM PST · 16682 days ago · 4 km deep · 2 km away
59. 1.511km NE of Aguanga, CASun, Feb 1, 3:57 PM PST · 16681 days ago · 3 km deep · 1 km away
60. 1.525km ESE of Julian, CASun, Feb 1, 9:57 PM PST · 16681 days ago · 6 km deep · 68 km away

The first 60 of 189.

Before

1. 2.14km NW of Palomar Observatory, CAWed, Jan 21, 8:06 AM PST · 16693 days ago · 2 km deep · 18 km away
2. 2.011km SE of Anza, CAWed, Jan 21, 3:48 AM PST · 16693 days ago · 10 km deep · 17 km away
3. 1.89km NW of Twentynine Palms, CAWed, Jan 21, 3:00 AM PST · 16693 days ago · 8 km deep · 95 km away
4. 1.66km SSE of Crestline, CATue, Jan 20, 3:51 PM PST · 16693 days ago · 2 km deep · 88 km away
5. 1.727km SE of Ocotillo Wells, CATue, Jan 20, 1:47 PM PST · 16694 days ago · 8 km deep · 99 km away
6. 1.713km E of Ocotillo Wells, CATue, Jan 20, 1:21 PM PST · 16694 days ago · 5 km deep · 83 km away
7. 1.53km ESE of Cabazon, CATue, Jan 20, 1:16 PM PST · 16694 days ago · 18 km deep · 44 km away
8. 1.728km WSW of Westmorland, CATue, Jan 20, 9:45 AM PST · 16694 days ago · 6 km deep · 99 km away
9. 1.53km ESE of Running Springs, CAMon, Jan 19, 1:37 PM PST · 16695 days ago · 6 km deep · 82 km away
10. 1.810km ENE of Aguanga, CAMon, Jan 19, 1:20 PM PST · 16695 days ago · 5 km deep · 2 km away
11. 1.78km ENE of Aguanga, CAMon, Jan 19, 8:23 AM PST · 16695 days ago · 5 km deep · 3 km away
12. 2.523km N of Yucca Valley, CASun, Jan 18, 9:41 PM PST · 16695 days ago · 0 km deep · 95 km away
13. 1.710km NE of Aguanga, CASun, Jan 18, 12:30 PM PST · 16696 days ago · 4 km deep · 1 km away
14. 3.010km ENE of Aguanga, CASun, Jan 18, 12:19 PM PST · 16696 days ago · 8 km deep · 2 km away
15. 1.79km NE of Desert Hot Springs, CASun, Jan 18, 6:35 AM PST · 16696 days ago · 13 km deep · 65 km away
16. 1.99km ENE of Indio, CASat, Jan 17, 3:52 PM PST · 16696 days ago · 4 km deep · 66 km away
17. 1.91km NNE of Loma Linda, CASat, Jan 17, 3:23 PM PST · 16696 days ago · 14 km deep · 76 km away
18. 1.623km NNW of Yucca Valley, CAFri, Jan 16, 7:48 PM PST · 16697 days ago · -1 km deep · 93 km away
19. 1.88km NE of Aguanga, CAFri, Jan 16, 10:40 AM PST · 16698 days ago · 4 km deep · 4 km away
20. 1.86km E of Moreno Valley, CAFri, Jan 16, 1:33 AM PST · 16698 days ago · 10 km deep · 60 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci12250779. Read Mon, Oct 5, 2026, 9:38 AM UTC.