M2.3 earthquake 11km W of Anza, CA

Magnitude

2.3 (Mc), micro

Magnitude from

Southern California Seismic Network

Local time

Wed, Jul 31, 1985, 9:34 AM PDT

UTC

1985-07-31 16:34:10 UTC

Depth

4.5 km (2.8 mi), shallow

Epicenter

33.544° N, 116.794° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

Operator assigned

Station coverage gap

34°

Stations used

0

• Anza, CaliforniaPopulation 3,014. Forecast11 kmW
• Valle Vista, CaliforniaPopulation 14,578. Forecast24 kmSSE
• Temecula, CaliforniaPopulation 110,003. Forecast33 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast98 kmNNE

After

1. 2.112km W of Anza, CAWed, Jul 31, 12:32 PM PDT · 15037 days ago · 2 km deep · 1 km away
2. 1.510km WSW of Anza, CAWed, Jul 31, 3:58 PM PDT · 15037 days ago · 2 km deep · 2 km away
3. 1.811km W of Anza, CAWed, Jul 31, 5:06 PM PDT · 15036 days ago · 2 km deep · 0 km away
4. 2.022km ESE of Anza, CAWed, Jul 31, 5:28 PM PDT · 15036 days ago · 12 km deep · 32 km away
5. 2.09km NE of Aguanga, CAWed, Jul 31, 11:18 PM PDT · 15036 days ago · 1 km deep · 4 km away
6. 2.218km ESE of Julian, CAThu, Aug 1, 1:47 AM PDT · 15036 days ago · 5 km deep · 67 km away
7. 2.526km SSW of Dana Point, CAThu, Aug 1, 4:14 AM PDT · 15036 days ago · 6 km deep · 98 km away
8. 2.218km ESE of Julian, CAThu, Aug 1, 7:33 AM PDT · 15036 days ago · 5 km deep · 67 km away
9. 1.66km ENE of Ocotillo Wells, CAThu, Aug 1, 10:13 AM PDT · 15036 days ago · 9 km deep · 80 km away
10. 1.99km NE of Aguanga, CAThu, Aug 1, 11:08 AM PDT · 15036 days ago · 3 km deep · 5 km away
11. 1.717km ESE of Anza, CAThu, Aug 1, 11:19 AM PDT · 15036 days ago · 12 km deep · 28 km away
12. 2.07km SSE of Borrego Springs, CAThu, Aug 1, 12:59 PM PDT · 15036 days ago · 1 km deep · 57 km away
13. 1.89km SSW of Idyllwild, CAThu, Aug 1, 3:19 PM PDT · 15036 days ago · 11 km deep · 14 km away
14. 1.69km SSW of Idyllwild, CAThu, Aug 1, 11:47 PM PDT · 15035 days ago · 11 km deep · 14 km away
15. 1.813km NNE of Cabazon, CAFri, Aug 2, 3:55 AM PDT · 15035 days ago · 14 km deep · 54 km away
16. 1.85km SSW of Redlands, CAFri, Aug 2, 4:24 AM PDT · 15035 days ago · 12 km deep · 64 km away
17. 1.510km NE of Aguanga, CAFri, Aug 2, 6:33 PM PDT · 15034 days ago · 4 km deep · 6 km away
18. 2.13km W of Palomar Observatory, CAFri, Aug 2, 11:44 PM PDT · 15034 days ago · 4 km deep · 23 km away
19. 2.122km SSE of Twentynine Palms, CASat, Aug 3, 3:24 AM PDT · 15034 days ago · 5 km deep · 84 km away
20. 2.13km ESE of Cabazon, CASat, Aug 3, 3:36 AM PDT · 15034 days ago · 17 km deep · 40 km away
21. 1.84km ESE of Cabazon, CASat, Aug 3, 3:36 AM PDT · 15034 days ago · 16 km deep · 41 km away
22. 2.24km SSE of Redlands, CASat, Aug 3, 9:00 AM PDT · 15034 days ago · 16 km deep · 64 km away
23. 1.99km NW of San Jacinto, CASat, Aug 3, 11:46 AM PDT · 15034 days ago · 12 km deep · 39 km away
24. 2.21km N of Loma Linda, CASat, Aug 3, 2:01 PM PDT · 15034 days ago · 13 km deep · 71 km away
25. 1.77km S of Idyllwild, CASat, Aug 3, 4:50 PM PDT · 15033 days ago · 14 km deep · 16 km away
26. 1.611km NNW of Ocotillo Wells, CASat, Aug 3, 6:02 PM PDT · 15033 days ago · 8 km deep · 67 km away
27. 1.822km ESE of Julian, CASat, Aug 3, 7:38 PM PDT · 15033 days ago · 5 km deep · 70 km away
28. 2.611km NE of Cabazon, CASat, Aug 3, 10:03 PM PDT · 15033 days ago · 12 km deep · 50 km away
29. 1.79km SSW of Idyllwild, CASun, Aug 4, 3:10 AM PDT · 15033 days ago · 11 km deep · 14 km away
30. 2.010km WSW of Anza, CASun, Aug 4, 5:49 AM PDT · 15033 days ago · 2 km deep · 2 km away
31. 1.93km N of Beaumont, CASun, Aug 4, 3:12 PM PDT · 15033 days ago · 14 km deep · 49 km away
32. 3.18km NE of Banning, CAMon, Aug 5, 9:08 AM PDT · 15032 days ago · 18 km deep · 49 km away
33. 1.612km NE of Borrego Springs, CAMon, Aug 5, 10:36 AM PDT · 15032 days ago · 8 km deep · 54 km away
34. 1.513km NE of Borrego Springs, CAMon, Aug 5, 1:16 PM PDT · 15032 days ago · 8 km deep · 54 km away
35. 1.721km ESE of Julian, CATue, Aug 6, 12:13 AM PDT · 15031 days ago · 5 km deep · 69 km away
36. 1.810km WSW of Anza, CATue, Aug 6, 2:26 AM PDT · 15031 days ago · 4 km deep · 2 km away
37. 1.615km ENE of Thousand Palms, CATue, Aug 6, 2:59 AM PDT · 15031 days ago · 0 km deep · 63 km away
38. 2.011km NNE of Morongo Valley, CATue, Aug 6, 4:44 AM PDT · 15031 days ago · 5 km deep · 70 km away
39. 1.817km ESE of Julian, CATue, Aug 6, 4:50 AM PDT · 15031 days ago · 2 km deep · 66 km away
40. 1.611km NE of Aguanga, CATue, Aug 6, 10:57 PM PDT · 15030 days ago · -1 km deep · 3 km away
41. 1.88km SE of Winchester, CATue, Aug 6, 11:32 PM PDT · 15030 days ago · 10 km deep · 25 km away
42. 2.04km SSE of Lake Henshaw, CAWed, Aug 7, 1:04 AM PDT · 15030 days ago · 6 km deep · 38 km away
43. 1.611km W of Anza, CAWed, Aug 7, 5:14 AM PDT · 15030 days ago · 3 km deep · 1 km away
44. 1.811km W of Anza, CAWed, Aug 7, 1:57 PM PDT · 15030 days ago · 4 km deep · 1 km away
45. 2.124km NNW of Yucca Valley, CAWed, Aug 7, 2:35 PM PDT · 15030 days ago · 5 km deep · 91 km away
46. 1.821km SE of Ocotillo Wells, CAWed, Aug 7, 2:45 PM PDT · 15030 days ago · 6 km deep · 97 km away
47. 2.010km WSW of Anza, CAWed, Aug 7, 3:17 PM PDT · 15030 days ago · 4 km deep · 2 km away
48. 1.910km W of Anza, CAWed, Aug 7, 5:17 PM PDT · 15029 days ago · 4 km deep · 1 km away
49. 1.68km E of Big Bear City, CAWed, Aug 7, 9:38 PM PDT · 15029 days ago · 11 km deep · 80 km away
50. 2.112km NNE of Trabuco Canyon, CAWed, Aug 7, 11:29 PM PDT · 15029 days ago · 6 km deep · 71 km away
51. 1.616km N of Borrego Springs, CAThu, Aug 8, 12:34 AM PDT · 15029 days ago · 5 km deep · 43 km away
52. 1.818km N of Borrego Springs, CAThu, Aug 8, 1:12 AM PDT · 15029 days ago · 11 km deep · 44 km away
53. 1.69km S of Idyllwild, CAThu, Aug 8, 2:35 AM PDT · 15029 days ago · 13 km deep · 14 km away
54. 1.820km ESE of Julian, CAThu, Aug 8, 7:14 AM PDT · 15029 days ago · 5 km deep · 68 km away
55. 1.616km ENE of Thousand Palms, CAThu, Aug 8, 8:01 AM PDT · 15029 days ago · 1 km deep · 64 km away
56. 2.022km ESE of Julian, CAThu, Aug 8, 9:45 AM PDT · 15029 days ago · 3 km deep · 69 km away
57. 2.215km ENE of Thousand Palms, CAThu, Aug 8, 4:11 PM PDT · 15029 days ago · 0 km deep · 63 km away
58. 1.717km E of Julian, CAThu, Aug 8, 4:51 PM PDT · 15028 days ago · 2 km deep · 65 km away
59. 1.921km ESE of Julian, CAThu, Aug 8, 7:30 PM PDT · 15028 days ago · 5 km deep · 69 km away
60. 1.98km SE of Big Bear Lake, CAFri, Aug 9, 1:40 AM PDT · 15028 days ago · 11 km deep · 72 km away

The first 60 of 177.

Before

1. 1.724km ENE of Pine Valley, CAWed, Jul 31, 7:37 AM PDT · 15037 days ago · 5 km deep · 82 km away
2. 2.37km WNW of Desert Hot Springs, CAWed, Jul 31, 7:11 AM PDT · 15037 days ago · 11 km deep · 53 km away
3. 1.815km N of Borrego Springs, CAWed, Jul 31, 5:57 AM PDT · 15037 days ago · 5 km deep · 43 km away
4. 2.22km E of Colton, CAWed, Jul 31, 3:39 AM PDT · 15037 days ago · 13 km deep · 75 km away
5. 1.91km NE of Grand Terrace, CAWed, Jul 31, 3:14 AM PDT · 15037 days ago · 15 km deep · 73 km away
6. 1.528km ENE of Pine Valley, CAWed, Jul 31, 2:30 AM PDT · 15037 days ago · 6 km deep · 88 km away
7. 2.01km NW of Colton, CATue, Jul 30, 11:45 PM PDT · 15037 days ago · 15 km deep · 77 km away
8. 1.74km SSW of Idyllwild, CATue, Jul 30, 10:50 PM PDT · 15037 days ago · 16 km deep · 19 km away
9. 1.58km NE of San Jacinto, CATue, Jul 30, 4:46 PM PDT · 15037 days ago · 11 km deep · 33 km away
10. 1.511km W of Anza, CATue, Jul 30, 8:49 AM PDT · 15038 days ago · 3 km deep · 1 km away
11. 2.222km ESE of Julian, CATue, Jul 30, 7:53 AM PDT · 15038 days ago · 1 km deep · 69 km away
12. 1.74km SSW of Morongo Valley, CATue, Jul 30, 7:34 AM PDT · 15038 days ago · 8 km deep · 55 km away
13. 1.813km NW of Aguanga, CATue, Jul 30, 5:08 AM PDT · 15038 days ago · 12 km deep · 18 km away
14. 2.011km N of Cabazon, CATue, Jul 30, 4:07 AM PDT · 15038 days ago · 14 km deep · 53 km away
15. 1.92km N of National City, CATue, Jul 30, 1:13 AM PDT · 15038 days ago · 6 km deep · 98 km away
16. 1.711km WSW of Anza, CAMon, Jul 29, 10:15 PM PDT · 15038 days ago · 2 km deep · 2 km away
17. 1.75km SSE of Beaumont, CAMon, Jul 29, 9:38 PM PDT · 15038 days ago · 15 km deep · 41 km away
18. 1.63km SSE of San Bernardino, CAMon, Jul 29, 6:17 PM PDT · 15038 days ago · 5 km deep · 77 km away
19. 1.68km S of Idyllwild, CAMon, Jul 29, 3:26 AM PDT · 15039 days ago · 14 km deep · 16 km away
20. 1.614km ESE of Anza, CASun, Jul 28, 5:48 PM PDT · 15039 days ago · 5 km deep · 25 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci71641. Read Thu, Oct 1, 2026, 10:46 AM UTC.