M2.1 earthquake 4km S of Ladera Ranch, CA

Magnitude

2.1 (Mc), micro

Magnitude from

Southern California Seismic Network

Local time

Sun, Oct 17, 1982, 4:07 PM PDT

UTC

1982-10-17 23:07:31 UTC

Depth

11.6 km (7.2 mi), shallow

Epicenter

33.535° N, 117.630° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

From location

Station coverage gap

143°

Stations used

0

• Ladera Ranch, CaliforniaPopulation 22,980. Forecast4 kmS
• Irvine, CaliforniaPopulation 256,927. Forecast23 kmSE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast81 kmSE

After

1. 1.96km NNE of Moreno Valley, CASun, Oct 17, 6:22 PM PDT · 16054 days ago · 11 km deep · 63 km away
2. 1.85km NNE of Moreno Valley, CASun, Oct 17, 9:30 PM PDT · 16054 days ago · 13 km deep · 62 km away
3. 2.37km SSW of San Pedro, CASun, Oct 17, 10:56 PM PDT · 16054 days ago · 6 km deep · 66 km away
4. 2.63km WSW of Rossmoor, CAMon, Oct 18, 12:23 PM PDT · 16053 days ago · 5 km deep · 52 km away
5. 1.914km SE of Anza, CAMon, Oct 18, 3:36 PM PDT · 16053 days ago · 10 km deep · 99 km away
6. 1.74km NE of Banning, CAMon, Oct 18, 5:02 PM PDT · 16053 days ago · 8 km deep · 86 km away
7. 1.63km SE of Beaumont, CAMon, Oct 18, 10:06 PM PDT · 16053 days ago · 14 km deep · 76 km away
8. 1.62km NE of Anza, CATue, Oct 19, 12:48 PM PDT · 16052 days ago · 11 km deep · 90 km away
9. 2.316km SW of La Jolla, CATue, Oct 19, 6:14 PM PDT · 16052 days ago · 5 km deep · 88 km away
10. 1.92km SW of Loma Linda, CATue, Oct 19, 8:48 PM PDT · 16052 days ago · 14 km deep · 65 km away
11. 2.610km SSE of Cabazon, CAWed, Oct 20, 11:07 AM PDT · 16051 days ago · 15 km deep · 87 km away
12. 1.64km W of Anza, CAWed, Oct 20, 2:01 PM PDT · 16051 days ago · 4 km deep · 85 km away
13. 1.64km ENE of Lake Arrowhead, CAWed, Oct 20, 3:45 PM PDT · 16051 days ago · 5 km deep · 92 km away
14. 2.514km SE of Anza, CAThu, Oct 21, 1:28 AM PDT · 16051 days ago · 9 km deep · 99 km away
15. 1.914km SE of Anza, CAThu, Oct 21, 1:00 PM PDT · 16050 days ago · 11 km deep · 100 km away
16. 2.16km SE of Carson, CAFri, Oct 22, 3:18 AM PDT · 16050 days ago · 5 km deep · 63 km away
17. 2.710km NE of Aguanga, CAFri, Oct 22, 3:53 AM PDT · 16050 days ago · 5 km deep · 80 km away
18. 1.912km W of Anza, CAFri, Oct 22, 11:26 AM PDT · 16049 days ago · 3 km deep · 77 km away
19. 1.96km ENE of Anza, CAFri, Oct 22, 12:30 PM PDT · 16049 days ago · 14 km deep · 95 km away
20. 2.24km W of Signal Hill, CAFri, Oct 22, 10:17 PM PDT · 16049 days ago · 1 km deep · 62 km away
21. 2.25km WSW of Anza, CASat, Oct 23, 5:17 AM PDT · 16049 days ago · 4 km deep · 84 km away
22. 1.714km SE of Anza, CAMon, Oct 25, 4:04 PM PDT · 16046 days ago · 8 km deep · 100 km away
23. 2.41km NE of Anza, CATue, Oct 26, 3:01 AM PDT · 16046 days ago · 9 km deep · 89 km away
24. 1.56km NNE of Moreno Valley, CATue, Oct 26, 6:22 AM PDT · 16046 days ago · 12 km deep · 62 km away
25. 1.610km NNW of Anza, CATue, Oct 26, 6:30 AM PDT · 16046 days ago · 13 km deep · 87 km away
26. 1.63km ENE of Colton, CATue, Oct 26, 6:40 PM PDT · 16045 days ago · 13 km deep · 69 km away
27. 1.94km SSW of Idyllwild, CATue, Oct 26, 11:55 PM PDT · 16045 days ago · 16 km deep · 85 km away
28. 2.22km WSW of Willowbrook, CAWed, Oct 27, 2:53 AM PDT · 16045 days ago · 5 km deep · 73 km away
29. 2.70km SSE of Compton, CAWed, Oct 27, 3:21 AM PDT · 16045 days ago · 12 km deep · 67 km away
30. 1.710km NNW of Anza, CAWed, Oct 27, 7:58 AM PDT · 16045 days ago · 13 km deep · 86 km away
31. 1.810km NNW of Anza, CAWed, Oct 27, 7:58 AM PDT · 16045 days ago · 12 km deep · 87 km away
32. 1.818km N of Banning, CAWed, Oct 27, 7:20 PM PDT · 16044 days ago · 3 km deep · 95 km away
33. 1.84km W of Anza, CAWed, Oct 27, 9:42 PM PDT · 16044 days ago · 4 km deep · 85 km away
34. 1.71km ENE of Anza, CAWed, Oct 27, 10:38 PM PDT · 16044 days ago · 10 km deep · 90 km away
35. 2.44km S of Idyllwild, CAWed, Oct 27, 11:22 PM PDT · 16044 days ago · 16 km deep · 86 km away
36. 2.44km S of Idyllwild, CAThu, Oct 28, 12:30 AM PDT · 16044 days ago · 16 km deep · 86 km away
37. 2.64km S of Idyllwild, CAThu, Oct 28, 12:34 AM PDT · 16044 days ago · 16 km deep · 86 km away
38. 2.76km ENE of Nuevo, CAThu, Oct 28, 2:40 AM PDT · 16044 days ago · 16 km deep · 60 km away
39. 1.65km W of Yucaipa, CAThu, Oct 28, 2:32 PM PDT · 16043 days ago · 17 km deep · 74 km away
40. 1.612km SE of Anza, CAThu, Oct 28, 4:02 PM PDT · 16043 days ago · 9 km deep · 97 km away
41. 2.544km SSW of San Clemente, CAThu, Oct 28, 11:28 PM PDT · 16043 days ago · 6 km deep · 54 km away
42. 1.75km N of Banning, CAFri, Oct 29, 8:03 PM PDT · 16042 days ago · 18 km deep · 85 km away
43. 2.33km SE of Loma Linda, CASat, Oct 30, 5:52 AM PDT · 16042 days ago · 18 km deep · 66 km away
44. 1.93km NNW of Colton, CASat, Oct 30, 11:15 AM PDT · 16041 days ago · 17 km deep · 69 km away
45. 2.647km SSW of San Clemente, CASun, Oct 31, 1:37 AM PDT · 16041 days ago · 6 km deep · 57 km away
46. 2.49km N of Lake Arrowhead, CASun, Oct 31, 3:38 AM PST · 16041 days ago · 4 km deep · 97 km away
47. 2.118km N of Banning, CASun, Oct 31, 4:58 AM PST · 16041 days ago · 1 km deep · 95 km away
48. 1.617km N of Banning, CASun, Oct 31, 4:18 PM PST · 16040 days ago · 0 km deep · 94 km away
49. 1.83km W of Anza, CAMon, Nov 1, 3:15 AM PST · 16040 days ago · 4 km deep · 85 km away
50. 1.910km ENE of Palomar Observatory, CAMon, Nov 1, 6:14 AM PST · 16040 days ago · 11 km deep · 83 km away
51. 1.54km W of Anza, CAMon, Nov 1, 7:39 PM PST · 16039 days ago · 2 km deep · 85 km away
52. 2.746km SSW of San Clemente, CATue, Nov 2, 4:52 AM PST · 16039 days ago · 6 km deep · 57 km away
53. 2.25km SSE of Palomar Observatory, CAWed, Nov 3, 10:32 AM PST · 16037 days ago · 10 km deep · 77 km away
54. 1.815km SE of Anza, CAWed, Nov 3, 5:56 PM PST · 16037 days ago · 10 km deep · 100 km away
55. 1.97km ENE of Villa Park, CAWed, Nov 3, 6:53 PM PST · 16037 days ago · 5 km deep · 35 km away
56. 1.86km SW of Warner Springs, CAThu, Nov 4, 6:33 AM PST · 16037 days ago · 3 km deep · 93 km away
57. 2.96km E of Lake Henshaw, CAThu, Nov 4, 6:34 AM PST · 16037 days ago · 6 km deep · 93 km away
58. 1.96km SW of Warner Springs, CAThu, Nov 4, 6:35 AM PST · 16037 days ago · 4 km deep · 93 km away
59. 2.42km ENE of Fullerton, CAThu, Nov 4, 8:13 AM PST · 16036 days ago · 5 km deep · 47 km away
60. 1.79km WSW of Idyllwild, CAThu, Nov 4, 9:15 AM PST · 16036 days ago · 16 km deep · 78 km away

The first 60 of 198.

Before

1. 1.66km N of Banning, CASat, Oct 16, 2:40 PM PDT · 16055 days ago · 22 km deep · 86 km away
2. 2.55km N of Banning, CASat, Oct 16, 2:32 PM PDT · 16055 days ago · 17 km deep · 84 km away
3. 1.611km WSW of Anza, CASat, Oct 16, 1:10 PM PDT · 16055 days ago · 4 km deep · 79 km away
4. 2.08km SE of Valle Vista, CAFri, Oct 15, 3:33 PM PDT · 16056 days ago · 14 km deep · 77 km away
5. 2.510km NNE of Lake Arrowhead, CAFri, Oct 15, 7:06 AM PDT · 16057 days ago · 5 km deep · 99 km away
6. 2.31km SE of Anza, CAFri, Oct 15, 3:28 AM PDT · 16057 days ago · 7 km deep · 89 km away
7. 1.711km W of Anza, CAFri, Oct 15, 1:49 AM PDT · 16057 days ago · 2 km deep · 78 km away
8. 2.311km N of Banning, CAThu, Oct 14, 8:44 PM PDT · 16057 days ago · 18 km deep · 89 km away
9. 2.711km W of Corona, CAThu, Oct 14, 5:26 AM PDT · 16058 days ago · 5 km deep · 39 km away
10. 1.79km SSW of Idyllwild, CAWed, Oct 13, 11:45 PM PDT · 16058 days ago · 14 km deep · 82 km away
11. 2.08km WSW of Pinon Hills, CAWed, Oct 13, 5:57 AM PDT · 16059 days ago · 2 km deep · 97 km away
12. 1.98km WSW of Pinon Hills, CAWed, Oct 13, 3:29 AM PDT · 16059 days ago · 2 km deep · 97 km away
13. 1.613km N of Bradbury, CAWed, Oct 13, 2:13 AM PDT · 16059 days ago · 10 km deep · 86 km away
14. 2.68km WSW of Pinon Hills, CATue, Oct 12, 12:02 PM PDT · 16059 days ago · 1 km deep · 97 km away
15. 1.94km S of Charter Oak, CAMon, Oct 11, 10:28 PM PDT · 16060 days ago · 14 km deep · 62 km away
16. 2.04km NW of Diamond Bar, CAMon, Oct 11, 10:27 PM PDT · 16060 days ago · 11 km deep · 61 km away
17. 1.71km ENE of Walnut, CAMon, Oct 11, 10:27 PM PDT · 16060 days ago · 5 km deep · 58 km away
18. 1.94km SSE of Charter Oak, CAMon, Oct 11, 8:05 PM PDT · 16060 days ago · 14 km deep · 62 km away
19. 2.64km SSE of Charter Oak, CAMon, Oct 11, 7:30 PM PDT · 16060 days ago · 13 km deep · 62 km away
20. 1.64km WNW of Fontana, CAMon, Oct 11, 5:57 PM PDT · 16060 days ago · 15 km deep · 65 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci511670. Read Thu, Oct 1, 2026, 3:31 AM UTC.