M1.8 earthquake 7km W of Anza, CA

Magnitude

1.8 (Mc), micro

Magnitude from

Southern California Seismic Network

Local time

Sat, Oct 8, 1983, 3:12 AM PDT

UTC

1983-10-08 10:12:57 UTC

Depth

3.1 km (1.9 mi), shallow

Epicenter

33.558° N, 116.750° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.7 km in depth

Depth from

From location

Station coverage gap

50°

Stations used

15

• Anza, CaliforniaPopulation 3,014. Forecast7 kmW
• Valle Vista, CaliforniaPopulation 14,578. Forecast25 kmSSE
• Temecula, CaliforniaPopulation 110,003. Forecast38 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast101 kmNNE

After

1. 2.12km SE of Loma Linda, CASat, Oct 8, 7:00 AM PDT · 15703 days ago · 17 km deep · 71 km away
2. 1.922km ESE of Anza, CASat, Oct 8, 2:03 PM PDT · 15702 days ago · 11 km deep · 29 km away
3. 2.18km S of Idyllwild, CASat, Oct 8, 2:48 PM PDT · 15702 days ago · 14 km deep · 12 km away
4. 1.618km NNE of Joshua Tree, CASun, Oct 9, 12:32 AM PDT · 15702 days ago · 11 km deep · 94 km away
5. 1.523km SSE of Twentynine Palms, CASun, Oct 9, 1:32 AM PDT · 15702 days ago · 1 km deep · 84 km away
6. 2.07km E of Ocotillo Wells, CASun, Oct 9, 2:21 AM PDT · 15702 days ago · 11 km deep · 79 km away
7. 2.017km WSW of Oasis, CASun, Oct 9, 4:48 AM PDT · 15702 days ago · 10 km deep · 50 km away
8. 1.920km ESE of Julian, CASun, Oct 9, 5:17 AM PDT · 15702 days ago · 1 km deep · 67 km away
9. 2.47km NE of Nuevo, CASun, Oct 9, 12:06 PM PDT · 15701 days ago · 11 km deep · 45 km away
10. 2.025km NNW of Yucca Valley, CASun, Oct 9, 2:31 PM PDT · 15701 days ago · 1 km deep · 89 km away
11. 1.810km NNE of Aguanga, CAMon, Oct 10, 1:23 AM PDT · 15701 days ago · 2 km deep · 7 km away
12. 1.92km SSW of Ontario, CAMon, Oct 10, 1:26 AM PDT · 15701 days ago · 12 km deep · 97 km away
13. 1.77km N of Moreno Valley, CAMon, Oct 10, 2:17 AM PDT · 15701 days ago · 15 km deep · 65 km away
14. 2.012km S of Joshua Tree, CAMon, Oct 10, 5:45 AM PDT · 15701 days ago · 3 km deep · 65 km away
15. 1.531km WNW of Desert Center, CAMon, Oct 10, 2:23 PM PDT · 15700 days ago · 11 km deep · 98 km away
16. 1.88km SSW of Bombay Beach, CATue, Oct 11, 12:50 AM PDT · 15700 days ago · 5 km deep · 97 km away
17. 1.83km W of Borrego Springs, CATue, Oct 11, 6:21 AM PDT · 15700 days ago · 3 km deep · 46 km away
18. 2.14km N of Running Springs, CATue, Oct 11, 11:13 AM PDT · 15699 days ago · 4 km deep · 84 km away
19. 1.67km WNW of Desert Hot Springs, CATue, Oct 11, 11:43 AM PDT · 15699 days ago · 3 km deep · 50 km away
20. 2.14km N of Running Springs, CATue, Oct 11, 12:01 PM PDT · 15699 days ago · 3 km deep · 84 km away
21. 1.712km S of Joshua Tree, CATue, Oct 11, 12:14 PM PDT · 15699 days ago · 1 km deep · 66 km away
22. 1.89km SW of Idyllwild, CATue, Oct 11, 6:35 PM PDT · 15699 days ago · 14 km deep · 15 km away
23. 1.812km S of Joshua Tree, CATue, Oct 11, 8:30 PM PDT · 15699 days ago · 1 km deep · 66 km away
24. 2.012km S of Joshua Tree, CATue, Oct 11, 8:31 PM PDT · 15699 days ago · 1 km deep · 65 km away
25. 2.215km SE of Anza, CATue, Oct 11, 9:07 PM PDT · 15699 days ago · 11 km deep · 21 km away
26. 1.82km SE of Cabazon, CATue, Oct 11, 9:35 PM PDT · 15699 days ago · 16 km deep · 39 km away
27. 2.11km SE of Muscoy, CAWed, Oct 12, 12:50 AM PDT · 15699 days ago · 5 km deep · 85 km away
28. 1.89km SW of Idyllwild, CAWed, Oct 12, 2:56 AM PDT · 15699 days ago · 16 km deep · 16 km away
29. 1.91km SSE of Muscoy, CAWed, Oct 12, 2:56 AM PDT · 15699 days ago · 3 km deep · 85 km away
30. 1.61km SSW of Muscoy, CAWed, Oct 12, 3:02 AM PDT · 15699 days ago · 7 km deep · 85 km away
31. 2.67km NNE of Lake Henshaw, CAWed, Oct 12, 3:37 AM PDT · 15699 days ago · 15 km deep · 28 km away
32. 2.59km NNE of Lake Henshaw, CAWed, Oct 12, 3:37 AM PDT · 15699 days ago · 15 km deep · 27 km away
33. 2.00km SE of Muscoy, CAWed, Oct 12, 6:07 AM PDT · 15699 days ago · 6 km deep · 86 km away
34. 1.96km NNE of Moreno Valley, CAWed, Oct 12, 12:11 PM PDT · 15698 days ago · 11 km deep · 63 km away
35. 1.911km WSW of Salton City, CAWed, Oct 12, 3:59 PM PDT · 15698 days ago · 2 km deep · 71 km away
36. 2.09km NW of San Jacinto, CAWed, Oct 12, 6:43 PM PDT · 15698 days ago · 11 km deep · 40 km away
37. 2.21km SSE of Muscoy, CAWed, Oct 12, 6:50 PM PDT · 15698 days ago · 3 km deep · 85 km away
38. 2.121km ENE of Thermal, CAWed, Oct 12, 9:27 PM PDT · 15698 days ago · 0 km deep · 77 km away
39. 2.02km SSE of Muscoy, CAThu, Oct 13, 12:17 AM PDT · 15698 days ago · 2 km deep · 85 km away
40. 1.711km WSW of Salton City, CAThu, Oct 13, 1:02 AM PDT · 15698 days ago · 3 km deep · 71 km away
41. 1.611km WSW of Salton City, CAThu, Oct 13, 1:02 AM PDT · 15698 days ago · 2 km deep · 71 km away
42. 2.012km SSW of Ocotillo Wells, CAThu, Oct 13, 2:49 AM PDT · 15698 days ago · 9 km deep · 76 km away
43. 1.51km SE of Muscoy, CAThu, Oct 13, 3:54 AM PDT · 15698 days ago · 7 km deep · 85 km away
44. 2.013km WSW of Salton City, CAThu, Oct 13, 4:13 AM PDT · 15698 days ago · 6 km deep · 70 km away
45. 1.85km NNE of Moreno Valley, CAThu, Oct 13, 6:12 AM PDT · 15698 days ago · 13 km deep · 62 km away
46. 2.14km SSE of Lucerne Valley, CAThu, Oct 13, 11:35 AM PDT · 15697 days ago · 2 km deep · 97 km away
47. 1.93km WSW of Cathedral City, CAThu, Oct 13, 2:27 PM PDT · 15697 days ago · 3 km deep · 34 km away
48. 2.07km N of Beaumont, CAThu, Oct 13, 2:47 PM PDT · 15697 days ago · 3 km deep · 52 km away
49. 1.61km S of Muscoy, CAThu, Oct 13, 8:39 PM PDT · 15697 days ago · 8 km deep · 85 km away
50. 1.84km WSW of Joshua Tree, CAFri, Oct 14, 2:59 AM PDT · 15697 days ago · 5 km deep · 72 km away
51. 1.94km NNE of Muscoy, CAFri, Oct 14, 7:13 AM PDT · 15697 days ago · 8 km deep · 88 km away
52. 2.02km WNW of Cabazon, CAFri, Oct 14, 6:18 PM PDT · 15696 days ago · 15 km deep · 41 km away
53. 1.89km S of Yucca Valley, CASat, Oct 15, 10:15 AM PDT · 15695 days ago · 7 km deep · 60 km away
54. 1.712km NNE of Banning, CASat, Oct 15, 10:48 AM PDT · 15695 days ago · 15 km deep · 52 km away
55. 1.913km SE of Anza, CASat, Oct 15, 6:11 PM PDT · 15695 days ago · 9 km deep · 19 km away
56. 1.99km S of Yucca Valley, CASat, Oct 15, 7:39 PM PDT · 15695 days ago · 9 km deep · 60 km away
57. 2.15km SW of Idyllwild, CASat, Oct 15, 10:26 PM PDT · 15695 days ago · 13 km deep · 17 km away
58. 1.93km ENE of Anza, CASat, Oct 15, 11:29 PM PDT · 15695 days ago · 11 km deep · 10 km away
59. 2.44km NE of Lake Arrowhead, CASun, Oct 16, 4:30 AM PDT · 15695 days ago · 2 km deep · 88 km away
60. 2.03km NE of Lake Arrowhead, CASun, Oct 16, 4:41 AM PDT · 15695 days ago · 2 km deep · 87 km away

The first 60 of 188.

Before

1. 1.77km SE of Loma Linda, CASat, Oct 8, 3:09 AM PDT · 15703 days ago · 11 km deep · 65 km away
2. 2.02km ESE of Loma Linda, CAFri, Oct 7, 3:52 PM PDT · 15703 days ago · 15 km deep · 71 km away
3. 1.82km W of Loma Linda, CAFri, Oct 7, 5:35 AM PDT · 15704 days ago · 15 km deep · 74 km away
4. 1.85km NNE of Beaumont, CAFri, Oct 7, 3:41 AM PDT · 15704 days ago · 17 km deep · 50 km away
5. 3.15km NNE of Beaumont, CAFri, Oct 7, 3:40 AM PDT · 15704 days ago · 15 km deep · 50 km away
6. 2.05km SE of Loma Linda, CAFri, Oct 7, 3:04 AM PDT · 15704 days ago · 11 km deep · 67 km away
7. 2.026km NNW of Yucca Valley, CAFri, Oct 7, 1:33 AM PDT · 15704 days ago · 0 km deep · 89 km away
8. 2.42km SE of Loma Linda, CAThu, Oct 6, 10:07 PM PDT · 15704 days ago · 17 km deep · 70 km away
9. 2.410km NNE of Ocotillo Wells, CAThu, Oct 6, 8:50 PM PDT · 15704 days ago · 11 km deep · 73 km away
10. 1.97km N of Big Bear City, CAThu, Oct 6, 7:22 PM PDT · 15704 days ago · 5 km deep · 86 km away
11. 2.06km ESE of Morongo Valley, CAThu, Oct 6, 7:09 PM PDT · 15704 days ago · 9 km deep · 55 km away
12. 1.924km NE of Pine Valley, CAThu, Oct 6, 5:04 PM PDT · 15704 days ago · 5 km deep · 79 km away
13. 2.02km SSE of Loma Linda, CAThu, Oct 6, 1:04 PM PDT · 15704 days ago · 18 km deep · 70 km away
14. 2.310km NNE of Ocotillo Wells, CAThu, Oct 6, 12:28 PM PDT · 15704 days ago · 10 km deep · 72 km away
15. 1.86km SE of Loma Linda, CAThu, Oct 6, 7:46 AM PDT · 15705 days ago · 12 km deep · 66 km away
16. 1.813km SW of Borrego Springs, CAThu, Oct 6, 6:03 AM PDT · 15705 days ago · 12 km deep · 51 km away
17. 1.74km E of Palomar Observatory, CAThu, Oct 6, 6:02 AM PDT · 15705 days ago · 3 km deep · 24 km away
18. 1.616km ESE of Big Bear City, CAThu, Oct 6, 5:17 AM PDT · 15705 days ago · 4 km deep · 75 km away
19. 2.18km SW of Salton City, CAThu, Oct 6, 4:16 AM PDT · 15705 days ago · 3 km deep · 77 km away
20. 1.78km SE of Valle Vista, CAWed, Oct 5, 5:06 PM PDT · 15705 days ago · 16 km deep · 18 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci17680. Read Mon, Oct 5, 2026, 3:18 AM UTC.