M1.6 earthquake 4km W of Anza, CA

Magnitude

1.6 (mc), micro

Local time

Wed, Oct 20, 1982, 2:01 PM PDT

UTC

1982-10-20 21:01:22 UTC

Depth

3.8 km (2.3 mi), shallow

Epicenter

33.560° N, 116.716° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

From location

Station coverage gap

47°

Stations used

0

• Anza, CaliforniaPopulation 3,014. Forecast4 kmW
• Valle Vista, CaliforniaPopulation 14,578. Forecast27 kmSE
• Temecula, CaliforniaPopulation 110,003. Forecast41 kmE
• San Diego, CaliforniaPopulation 1,404,452. Forecast103 kmNNE

After

1. 1.64km ENE of Lake Arrowhead, CAWed, Oct 20, 3:45 PM PDT · 16049 days ago · 5 km deep · 88 km away
2. 2.54km WSW of Lucerne Valley, CAWed, Oct 20, 5:59 PM PDT · 16049 days ago · 4 km deep · 100 km away
3. 1.65km ENE of Ocotillo Wells, CAThu, Oct 21, 12:35 AM PDT · 16049 days ago · 11 km deep · 73 km away
4. 2.514km SE of Anza, CAThu, Oct 21, 1:28 AM PDT · 16049 days ago · 9 km deep · 17 km away
5. 2.46km SW of Salton City, CAThu, Oct 21, 3:31 AM PDT · 16049 days ago · 4 km deep · 73 km away
6. 1.914km SE of Anza, CAThu, Oct 21, 1:00 PM PDT · 16049 days ago · 11 km deep · 18 km away
7. 2.710km NE of Aguanga, CAFri, Oct 22, 3:53 AM PDT · 16048 days ago · 5 km deep · 9 km away
8. 1.912km W of Anza, CAFri, Oct 22, 11:26 AM PDT · 16048 days ago · 3 km deep · 8 km away
9. 2.512km ENE of Coachella, CAFri, Oct 22, 12:02 PM PDT · 16048 days ago · 5 km deep · 64 km away
10. 1.96km ENE of Anza, CAFri, Oct 22, 12:30 PM PDT · 16048 days ago · 14 km deep · 10 km away
11. 2.25km WSW of Anza, CASat, Oct 23, 5:17 AM PDT · 16047 days ago · 4 km deep · 2 km away
12. 2.013km NE of Lake Arrowhead, CASat, Oct 23, 10:00 AM PDT · 16047 days ago · 4 km deep · 93 km away
13. 1.65km SW of Salton City, CAMon, Oct 25, 2:46 AM PDT · 16045 days ago · 3 km deep · 75 km away
14. 1.825km N of Yucca Valley, CAMon, Oct 25, 8:13 AM PDT · 16045 days ago · 1 km deep · 90 km away
15. 1.512km WSW of Morongo Valley, CAMon, Oct 25, 9:27 AM PDT · 16045 days ago · 14 km deep · 49 km away
16. 1.714km SE of Anza, CAMon, Oct 25, 4:04 PM PDT · 16044 days ago · 8 km deep · 18 km away
17. 2.41km NE of Anza, CATue, Oct 26, 3:01 AM PDT · 16044 days ago · 9 km deep · 5 km away
18. 1.56km NNE of Moreno Valley, CATue, Oct 26, 6:22 AM PDT · 16044 days ago · 12 km deep · 65 km away
19. 1.610km NNW of Anza, CATue, Oct 26, 6:30 AM PDT · 16044 days ago · 13 km deep · 9 km away
20. 2.15km ENE of Big Bear City, CATue, Oct 26, 11:34 AM PDT · 16044 days ago · 1 km deep · 80 km away
21. 1.63km ENE of Colton, CATue, Oct 26, 6:40 PM PDT · 16043 days ago · 13 km deep · 78 km away
22. 1.920km ESE of Anza, CATue, Oct 26, 9:27 PM PDT · 16043 days ago · 5 km deep · 24 km away
23. 1.94km SSW of Idyllwild, CATue, Oct 26, 11:55 PM PDT · 16043 days ago · 16 km deep · 16 km away
24. 1.69km SSE of Yucca Valley, CAWed, Oct 27, 12:03 AM PDT · 16043 days ago · 4 km deep · 62 km away
25. 1.85km ENE of Big Bear City, CAWed, Oct 27, 5:55 AM PDT · 16043 days ago · 2 km deep · 81 km away
26. 2.14km ENE of Big Bear City, CAWed, Oct 27, 5:56 AM PDT · 16043 days ago · 1 km deep · 80 km away
27. 1.710km NNW of Anza, CAWed, Oct 27, 7:58 AM PDT · 16043 days ago · 13 km deep · 9 km away
28. 1.810km NNW of Anza, CAWed, Oct 27, 7:58 AM PDT · 16043 days ago · 12 km deep · 9 km away
29. 1.74km NE of Big Bear City, CAWed, Oct 27, 4:35 PM PDT · 16042 days ago · 4 km deep · 81 km away
30. 2.05km ENE of Big Bear City, CAWed, Oct 27, 5:26 PM PDT · 16042 days ago · 1 km deep · 80 km away
31. 1.818km N of Banning, CAWed, Oct 27, 7:20 PM PDT · 16042 days ago · 3 km deep · 60 km away
32. 1.84km W of Anza, CAWed, Oct 27, 9:42 PM PDT · 16042 days ago · 4 km deep · 0 km away
33. 1.71km ENE of Anza, CAWed, Oct 27, 10:38 PM PDT · 16042 days ago · 10 km deep · 5 km away
34. 2.44km S of Idyllwild, CAWed, Oct 27, 11:22 PM PDT · 16042 days ago · 16 km deep · 16 km away
35. 2.44km S of Idyllwild, CAThu, Oct 28, 12:30 AM PDT · 16042 days ago · 16 km deep · 16 km away
36. 2.64km S of Idyllwild, CAThu, Oct 28, 12:34 AM PDT · 16042 days ago · 16 km deep · 16 km away
37. 2.76km ENE of Nuevo, CAThu, Oct 28, 2:40 AM PDT · 16042 days ago · 16 km deep · 46 km away
38. 1.65km W of Yucaipa, CAThu, Oct 28, 2:32 PM PDT · 16042 days ago · 17 km deep · 63 km away
39. 2.112km ENE of Desert Hot Springs, CAThu, Oct 28, 3:39 PM PDT · 16041 days ago · 3 km deep · 58 km away
40. 1.612km SE of Anza, CAThu, Oct 28, 4:02 PM PDT · 16041 days ago · 9 km deep · 16 km away
41. 1.710km N of Borrego Springs, CAFri, Oct 29, 1:30 AM PDT · 16041 days ago · 13 km deep · 39 km away
42. 1.621km SW of La Quinta, CAFri, Oct 29, 9:04 AM PDT · 16041 days ago · 8 km deep · 25 km away
43. 2.010km N of Joshua Tree, CAFri, Oct 29, 10:49 AM PDT · 16041 days ago · 2 km deep · 83 km away
44. 1.622km ESE of Anza, CAFri, Oct 29, 4:49 PM PDT · 16040 days ago · 10 km deep · 26 km away
45. 1.75km N of Banning, CAFri, Oct 29, 8:03 PM PDT · 16040 days ago · 18 km deep · 48 km away
46. 2.33km SE of Loma Linda, CASat, Oct 30, 5:52 AM PDT · 16040 days ago · 18 km deep · 71 km away
47. 1.93km NNW of Colton, CASat, Oct 30, 11:15 AM PDT · 16040 days ago · 17 km deep · 83 km away
48. 2.57km E of Borrego Springs, CASat, Oct 30, 2:08 PM PDT · 16040 days ago · 6 km deep · 52 km away
49. 2.66km E of Borrego Springs, CASat, Oct 30, 2:08 PM PDT · 16040 days ago · 6 km deep · 51 km away
50. 2.49km N of Lake Arrowhead, CASun, Oct 31, 3:38 AM PST · 16039 days ago · 4 km deep · 97 km away
51. 2.118km N of Banning, CASun, Oct 31, 4:58 AM PST · 16039 days ago · 1 km deep · 60 km away
52. 1.617km N of Banning, CASun, Oct 31, 4:18 PM PST · 16038 days ago · 0 km deep · 59 km away
53. 2.04km NE of Ocotillo Wells, CASun, Oct 31, 7:00 PM PST · 16038 days ago · 9 km deep · 71 km away
54. 1.83km W of Anza, CAMon, Nov 1, 3:15 AM PST · 16038 days ago · 4 km deep · 1 km away
55. 1.910km ENE of Palomar Observatory, CAMon, Nov 1, 6:14 AM PST · 16038 days ago · 11 km deep · 20 km away
56. 1.54km W of Anza, CAMon, Nov 1, 7:39 PM PST · 16037 days ago · 2 km deep · 1 km away
57. 1.715km E of Lucerne Valley, CATue, Nov 2, 9:07 AM PST · 16037 days ago · 3 km deep · 98 km away
58. 1.920km SSW of La Quinta, CATue, Nov 2, 10:16 AM PST · 16037 days ago · 13 km deep · 29 km away
59. 2.022km N of Borrego Springs, CATue, Nov 2, 11:45 AM PST · 16037 days ago · 4 km deep · 34 km away
60. 1.715km E of Lucerne Valley, CATue, Nov 2, 3:02 PM PST · 16036 days ago · 3 km deep · 98 km away

The first 60 of 198.

Before

1. 2.610km SSE of Cabazon, CAWed, Oct 20, 11:07 AM PDT · 16050 days ago · 15 km deep · 31 km away
2. 1.610km SW of Salton City, CAWed, Oct 20, 2:09 AM PDT · 16050 days ago · 7 km deep · 73 km away
3. 2.69km SE of Ocotillo Wells, CAWed, Oct 20, 1:03 AM PDT · 16050 days ago · 5 km deep · 80 km away
4. 1.92km SW of Loma Linda, CATue, Oct 19, 8:48 PM PDT · 16050 days ago · 14 km deep · 74 km away
5. 1.62km NE of Anza, CATue, Oct 19, 12:48 PM PDT · 16051 days ago · 11 km deep · 6 km away
6. 3.04km SW of Salton City, CATue, Oct 19, 7:27 AM PDT · 16051 days ago · 4 km deep · 75 km away
7. 1.63km SE of Beaumont, CAMon, Oct 18, 10:06 PM PDT · 16051 days ago · 14 km deep · 45 km away
8. 1.85km ENE of Big Bear City, CAMon, Oct 18, 6:10 PM PDT · 16051 days ago · 2 km deep · 81 km away
9. 1.74km NE of Banning, CAMon, Oct 18, 5:02 PM PDT · 16051 days ago · 8 km deep · 45 km away
10. 1.914km SE of Anza, CAMon, Oct 18, 3:36 PM PDT · 16051 days ago · 10 km deep · 18 km away
11. 1.65km WNW of Borrego Springs, CAMon, Oct 18, 7:55 AM PDT · 16052 days ago · 2 km deep · 43 km away
12. 1.95km SW of Salton City, CAMon, Oct 18, 7:23 AM PDT · 16052 days ago · 4 km deep · 75 km away
13. 1.85km NNE of Moreno Valley, CASun, Oct 17, 9:30 PM PDT · 16052 days ago · 13 km deep · 64 km away
14. 1.96km NNE of Moreno Valley, CASun, Oct 17, 6:22 PM PDT · 16052 days ago · 11 km deep · 65 km away
15. 2.14km S of Ladera Ranch, CASun, Oct 17, 4:07 PM PDT · 16052 days ago · 12 km deep · 85 km away
16. 2.621km ESE of Anza, CASun, Oct 17, 3:13 AM PDT · 16053 days ago · 7 km deep · 25 km away
17. 1.732km SE of Twentynine Palms, CASat, Oct 16, 9:57 PM PDT · 16053 days ago · 10 km deep · 92 km away
18. 1.65km ENE of Big Bear City, CASat, Oct 16, 5:58 PM PDT · 16053 days ago · 3 km deep · 81 km away
19. 2.84km ENE of Big Bear City, CASat, Oct 16, 5:45 PM PDT · 16053 days ago · 2 km deep · 81 km away
20. 1.66km N of Banning, CASat, Oct 16, 2:40 PM PDT · 16054 days ago · 22 km deep · 49 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci509261. Read Tue, Sep 29, 2026, 9:43 AM UTC.