M1.7 earthquake 10km W of Anza, CA

Magnitude

1.7 (mc), micro

Local time

Tue, Aug 20, 1985, 3:06 PM PDT

UTC

1985-08-20 22:06:08 UTC

Depth

3.7 km (2.3 mi), shallow

Epicenter

33.551° N, 116.787° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

From location

Station coverage gap

54°

Stations used

0

• Anza, CaliforniaPopulation 3,014. Forecast10 kmW
• Valle Vista, CaliforniaPopulation 14,578. Forecast24 kmSSE
• Temecula, CaliforniaPopulation 110,003. Forecast34 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast99 kmNNE

After

1. 1.522km N of Borrego Springs, CATue, Aug 20, 6:24 PM PDT · 15013 days ago · 12 km deep · 39 km away
2. 1.610km WSW of Anza, CAWed, Aug 21, 1:49 AM PDT · 15013 days ago · 4 km deep · 2 km away
3. 2.06km NNW of Cabazon, CAWed, Aug 21, 11:59 AM PDT · 15012 days ago · 16 km deep · 46 km away
4. 1.65km WSW of Morongo Valley, CAWed, Aug 21, 4:24 PM PDT · 15012 days ago · 11 km deep · 56 km away
5. 2.120km N of Borrego Springs, CAWed, Aug 21, 5:35 PM PDT · 15012 days ago · 13 km deep · 38 km away
6. 1.920km N of Borrego Springs, CAWed, Aug 21, 5:38 PM PDT · 15012 days ago · 11 km deep · 39 km away
7. 1.613km N of Borrego Springs, CAWed, Aug 21, 9:11 PM PDT · 15012 days ago · 13 km deep · 45 km away
8. 2.58km NE of Cabazon, CAWed, Aug 21, 9:43 PM PDT · 15012 days ago · 18 km deep · 47 km away
9. 1.518km ESE of Julian, CAThu, Aug 22, 5:43 AM PDT · 15012 days ago · 5 km deep · 69 km away
10. 1.62km S of Banning, CAThu, Aug 22, 6:59 AM PDT · 15012 days ago · 18 km deep · 41 km away
11. 1.712km W of Anza, CAThu, Aug 22, 11:56 AM PDT · 15011 days ago · 5 km deep · 1 km away
12. 1.53km WNW of Redlands, CAThu, Aug 22, 2:47 PM PDT · 15011 days ago · 4 km deep · 69 km away
13. 2.010km NNE of Ocotillo Wells, CAThu, Aug 22, 9:43 PM PDT · 15011 days ago · 6 km deep · 75 km away
14. 2.03km W of Cabazon, CAThu, Aug 22, 11:43 PM PDT · 15011 days ago · 15 km deep · 41 km away
15. 1.912km SW of Morongo Valley, CAFri, Aug 23, 3:53 AM PDT · 15011 days ago · 9 km deep · 48 km away
16. 2.123km ESE of Anza, CAFri, Aug 23, 1:30 PM PDT · 15010 days ago · 7 km deep · 33 km away
17. 1.718km N of Borrego Springs, CASat, Aug 24, 11:48 AM PDT · 15009 days ago · 11 km deep · 44 km away
18. 1.75km N of Anza, CASat, Aug 24, 12:44 PM PDT · 15009 days ago · 17 km deep · 12 km away
19. 1.617km ESE of Anza, CASat, Aug 24, 5:08 PM PDT · 15009 days ago · 14 km deep · 27 km away
20. 1.57km NNW of Garnet, CASat, Aug 24, 10:27 PM PDT · 15009 days ago · 5 km deep · 49 km away
21. 2.02km WSW of Devore, CASun, Aug 25, 1:17 AM PDT · 15009 days ago · 13 km deep · 94 km away
22. 1.919km NNW of Ocotillo, CASun, Aug 25, 1:56 AM PDT · 15009 days ago · 1 km deep · 99 km away
23. 1.68km NE of Cabazon, CASun, Aug 25, 2:29 AM PDT · 15009 days ago · 5 km deep · 48 km away
24. 2.110km ENE of Desert Hot Springs, CASun, Aug 25, 4:53 AM PDT · 15009 days ago · 3 km deep · 61 km away
25. 1.911km ENE of Desert Hot Springs, CASun, Aug 25, 11:36 AM PDT · 15008 days ago · 2 km deep · 61 km away
26. 1.611km ENE of Desert Hot Springs, CASun, Aug 25, 11:39 AM PDT · 15008 days ago · 3 km deep · 62 km away
27. 1.89km ENE of Joshua Tree, CASun, Aug 25, 2:21 PM PDT · 15008 days ago · 4 km deep · 86 km away
28. 2.24km S of Twentynine Palms, CASun, Aug 25, 2:33 PM PDT · 15008 days ago · 4 km deep · 90 km away
29. 1.612km NNE of Idyllwild, CAMon, Aug 26, 3:12 PM PDT · 15007 days ago · 8 km deep · 34 km away
30. 1.720km ESE of Anza, CAMon, Aug 26, 9:12 PM PDT · 15007 days ago · 14 km deep · 30 km away
31. 1.621km E of Julian, CAMon, Aug 26, 11:04 PM PDT · 15007 days ago · 3 km deep · 68 km away
32. 1.87km WSW of Carlsbad, CATue, Aug 27, 2:01 AM PDT · 15007 days ago · 5 km deep · 75 km away
33. 1.710km SSW of Ocotillo Wells, CATue, Aug 27, 3:12 AM PDT · 15007 days ago · 9 km deep · 78 km away
34. 1.61km E of Loma Linda, CATue, Aug 27, 10:46 AM PDT · 15006 days ago · 15 km deep · 70 km away
35. 1.82km SSW of Lake Henshaw, CATue, Aug 27, 4:32 PM PDT · 15006 days ago · 10 km deep · 36 km away
36. 1.513km SE of Anza, CATue, Aug 27, 5:11 PM PDT · 15006 days ago · 9 km deep · 22 km away
37. 2.110km WSW of Camp Pendleton South, CATue, Aug 27, 6:54 PM PDT · 15006 days ago · 11 km deep · 75 km away
38. 1.86km NE of Cabazon, CATue, Aug 27, 9:58 PM PDT · 15006 days ago · 18 km deep · 45 km away
39. 2.420km ENE of Coachella, CAWed, Aug 28, 7:30 AM PDT · 15006 days ago · 2 km deep · 78 km away
40. 2.02km SSW of Lake Henshaw, CAWed, Aug 28, 8:05 AM PDT · 15006 days ago · 11 km deep · 36 km away
41. 1.97km SSW of Twentynine Palms, CAWed, Aug 28, 1:36 PM PDT · 15005 days ago · 1 km deep · 87 km away
42. 1.611km NE of Aguanga, CAWed, Aug 28, 5:45 PM PDT · 15005 days ago · 2 km deep · 3 km away
43. 1.76km NE of Anza, CAWed, Aug 28, 11:54 PM PDT · 15005 days ago · 13 km deep · 16 km away
44. 3.97km NNE of Big Bear City, CAThu, Aug 29, 12:59 AM PDT · 15005 days ago · 4 km deep · 86 km away
45. 1.73km SW of Idyllwild, CAThu, Aug 29, 1:43 AM PDT · 15005 days ago · 16 km deep · 19 km away
46. 2.02km WSW of San Jacinto, CAThu, Aug 29, 2:29 AM PDT · 15005 days ago · 15 km deep · 31 km away
47. 1.89km NNE of Big Bear City, CAThu, Aug 29, 2:31 AM PDT · 15005 days ago · 6 km deep · 87 km away
48. 1.812km NNE of Borrego Springs, CAThu, Aug 29, 2:37 AM PDT · 15005 days ago · 12 km deep · 48 km away
49. 2.48km NNE of Big Bear City, CAThu, Aug 29, 3:14 AM PDT · 15005 days ago · 5 km deep · 86 km away
50. 2.08km NNE of Big Bear City, CAThu, Aug 29, 4:29 AM PDT · 15005 days ago · 5 km deep · 86 km away
51. 1.511km WSW of Anza, CAThu, Aug 29, 6:56 AM PDT · 15005 days ago · 1 km deep · 3 km away
52. 2.311km ENE of Desert Hot Springs, CAThu, Aug 29, 9:47 AM PDT · 15005 days ago · 4 km deep · 61 km away
53. 1.810km ENE of Desert Hot Springs, CAThu, Aug 29, 10:57 AM PDT · 15004 days ago · 1 km deep · 61 km away
54. 1.610km ENE of Desert Hot Springs, CAThu, Aug 29, 12:35 PM PDT · 15004 days ago · 4 km deep · 61 km away
55. 2.38km NNE of Big Bear City, CAThu, Aug 29, 12:37 PM PDT · 15004 days ago · 4 km deep · 86 km away
56. 2.66km SE of Valle Vista, CAThu, Aug 29, 7:24 PM PDT · 15004 days ago · 11 km deep · 19 km away
57. 2.43km E of Valle Vista, CAThu, Aug 29, 7:24 PM PDT · 15004 days ago · 15 km deep · 22 km away
58. 2.06km ESE of Valle Vista, CAThu, Aug 29, 7:32 PM PDT · 15004 days ago · 13 km deep · 19 km away
59. 1.86km ESE of Valle Vista, CAThu, Aug 29, 8:07 PM PDT · 15004 days ago · 15 km deep · 20 km away
60. 1.714km ESE of Anza, CAThu, Aug 29, 11:37 PM PDT · 15004 days ago · 13 km deep · 24 km away

The first 60 of 179.

Before

1. 1.87km SSW of Bombay Beach, CATue, Aug 20, 12:39 PM PDT · 15013 days ago · 4 km deep · 100 km away
2. 1.67km WNW of Garnet, CATue, Aug 20, 5:49 AM PDT · 15014 days ago · 11 km deep · 46 km away
3. 1.522km N of Borrego Springs, CAMon, Aug 19, 3:03 PM PDT · 15014 days ago · 10 km deep · 38 km away
4. 2.721km N of Borrego Springs, CAMon, Aug 19, 12:10 PM PDT · 15014 days ago · 13 km deep · 38 km away
5. 2.422km N of Borrego Springs, CAMon, Aug 19, 12:00 PM PDT · 15014 days ago · 14 km deep · 38 km away
6. 1.522km N of Borrego Springs, CAMon, Aug 19, 9:17 AM PDT · 15015 days ago · 11 km deep · 38 km away
7. 2.54km NNE of Fontana, CAMon, Aug 19, 2:12 AM PDT · 15015 days ago · 8 km deep · 88 km away
8. 1.612km W of Anza, CAMon, Aug 19, 12:26 AM PDT · 15015 days ago · 3 km deep · 1 km away
9. 1.516km SE of Ocotillo Wells, CASun, Aug 18, 10:00 PM PDT · 15015 days ago · 10 km deep · 92 km away
10. 1.610km S of Idyllwild, CASun, Aug 18, 8:55 PM PDT · 15015 days ago · 12 km deep · 14 km away
11. 1.83km NNW of Cabazon, CASun, Aug 18, 4:09 PM PDT · 15015 days ago · 15 km deep · 43 km away
12. 2.015km SE of Ocotillo Wells, CASun, Aug 18, 10:20 AM PDT · 15016 days ago · 11 km deep · 91 km away
13. 1.718km NNE of Borrego Springs, CASun, Aug 18, 6:27 AM PDT · 15016 days ago · 11 km deep · 50 km away
14. 2.33km SSW of San Bernardino, CASat, Aug 17, 11:24 PM PDT · 15016 days ago · 9 km deep · 78 km away
15. 1.89km NW of Borrego Springs, CASat, Aug 17, 6:20 PM PDT · 15016 days ago · 1 km deep · 42 km away
16. 1.69km NNE of San Jacinto, CASat, Aug 17, 5:37 PM PDT · 15016 days ago · 15 km deep · 36 km away
17. 2.312km W of Anza, CASat, Aug 17, 3:49 PM PDT · 15016 days ago · 2 km deep · 2 km away
18. 2.57km NNE of Moreno Valley, CASat, Aug 17, 12:25 PM PDT · 15016 days ago · 14 km deep · 60 km away
19. 1.68km SSW of Idyllwild, CASat, Aug 17, 1:43 AM PDT · 15017 days ago · 13 km deep · 14 km away
20. 1.618km ESE of Anza, CAFri, Aug 16, 8:49 PM PDT · 15017 days ago · 14 km deep · 28 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci110121. Read Mon, Sep 28, 2026, 5:07 AM UTC.