M1.9 earthquake 32km WSW of Olancha, CA

Magnitude

1.9 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Thu, Jul 28, 1983, 4:00 PM PDT

UTC

1983-07-28 23:00:21 UTC

Depth

4.5 km (2.8 mi), shallow

Epicenter

36.176° N, 118.342° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.32

Depth from

Operator assigned

Station coverage gap

205°, poorly surrounded by stations

Stations used

12

• Springville, CaliforniaPopulation 934. Forecast43 kmE
• Porterville, CaliforniaPopulation 56,058. Forecast62 kmENE
• Visalia, CaliforniaPopulation 130,104. Forecast87 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast236 kmN

After

1. 2.825km SSW of Bodfish, CAFri, Jul 29, 2:38 AM PDT · 15771 days ago · 2 km deep · 91 km away
2. 2.025km NE of Arvin, CAFri, Jul 29, 7:59 AM PDT · 15771 days ago · 4 km deep · 93 km away
3. 1.519km N of Kernville, CASat, Jul 30, 6:40 AM PDT · 15770 days ago · 10 km deep · 29 km away
4. 1.67km SE of Bodfish, CASat, Jul 30, 9:45 AM PDT · 15770 days ago · 5 km deep · 71 km away
5. 1.619km SE of Little Lake, CASat, Jul 30, 9:55 PM PDT · 15770 days ago · 7 km deep · 67 km away
6. 2.09km NE of Little Lake, CASun, Jul 31, 9:08 AM PDT · 15769 days ago · 9 km deep · 50 km away
7. 3.327km SSW of Bodfish, CASun, Jul 31, 3:51 PM PDT · 15769 days ago · 4 km deep · 94 km away
8. 2.026km NNW of Tehachapi, CASun, Jul 31, 3:51 PM PDT · 15769 days ago · 6 km deep · 94 km away
9. 2.226km SSW of Bodfish, CASun, Jul 31, 3:52 PM PDT · 15769 days ago · 7 km deep · 93 km away
10. 2.121km SE of Bodfish, CASun, Jul 31, 4:04 PM PDT · 15769 days ago · 5 km deep · 83 km away
11. 2.027km SSW of Bodfish, CASun, Jul 31, 8:40 PM PDT · 15769 days ago · 7 km deep · 93 km away
12. 1.54km WSW of Olancha, CASun, Jul 31, 11:08 PM PDT · 15769 days ago · 4 km deep · 29 km away
13. 1.926km NNW of Tehachapi, CAMon, Aug 1, 1:59 AM PDT · 15768 days ago · 6 km deep · 94 km away
14. 1.715km NNE of Inyokern, CAMon, Aug 1, 6:43 AM PDT · 15768 days ago · 7 km deep · 72 km away
15. 1.819km NNE of Inyokern, CAMon, Aug 1, 8:16 AM PDT · 15768 days ago · 6 km deep · 68 km away
16. 2.120km S of Bodfish, CAMon, Aug 1, 11:59 AM PDT · 15768 days ago · 2 km deep · 86 km away
17. 2.026km NE of Arvin, CAMon, Aug 1, 12:56 PM PDT · 15768 days ago · -1 km deep · 91 km away
18. 1.720km ENE of Little Lake, CATue, Aug 2, 5:37 AM PDT · 15767 days ago · 2 km deep · 62 km away
19. 1.68km SE of Bodfish, CATue, Aug 2, 10:58 AM PDT · 15767 days ago · 6 km deep · 72 km away
20. 2.62km N of Kernville, CAThu, Aug 4, 4:48 AM PDT · 15765 days ago · 6 km deep · 45 km away
21. 1.526km NNW of Tehachapi, CAThu, Aug 4, 6:21 AM PDT · 15765 days ago · 4 km deep · 95 km away
22. 2.632km W of Olancha, CAThu, Aug 4, 8:39 AM PDT · 15765 days ago · 4 km deep · 13 km away
23. 3.02km NNW of Kernville, CAThu, Aug 4, 9:04 AM PDT · 15765 days ago · 9 km deep · 46 km away
24. 1.92km NNW of Kernville, CAThu, Aug 4, 11:03 AM PDT · 15765 days ago · 9 km deep · 46 km away
25. 1.926km SSW of Bodfish, CAThu, Aug 4, 6:21 PM PDT · 15765 days ago · 5 km deep · 92 km away
26. 1.72km NE of Kernville, CAThu, Aug 4, 7:20 PM PDT · 15765 days ago · 5 km deep · 45 km away
27. 1.519km SE of Little Lake, CAFri, Aug 5, 2:20 AM PDT · 15764 days ago · 7 km deep · 66 km away
28. 1.920km SE of Little Lake, CAFri, Aug 5, 10:59 AM PDT · 15764 days ago · 7 km deep · 67 km away
29. 2.145km SW of Stovepipe Wells, CASat, Aug 6, 4:23 AM PDT · 15763 days ago · 5 km deep · 79 km away
30. 2.331km W of Olancha, CASat, Aug 6, 10:27 AM PDT · 15763 days ago · 6 km deep · 13 km away
31. 2.319km SE of Little Lake, CASat, Aug 6, 12:41 PM PDT · 15763 days ago · 4 km deep · 67 km away
32. 1.620km SE of Little Lake, CASat, Aug 6, 12:54 PM PDT · 15763 days ago · 6 km deep · 67 km away
33. 1.819km SE of Little Lake, CASat, Aug 6, 2:30 PM PDT · 15763 days ago · 5 km deep · 67 km away
34. 1.820km SE of Little Lake, CASat, Aug 6, 6:16 PM PDT · 15763 days ago · 7 km deep · 67 km away
35. 1.724km S of Bodfish, CASun, Aug 7, 7:18 AM PDT · 15762 days ago · 5 km deep · 90 km away
36. 1.616km NNE of Inyokern, CASun, Aug 7, 3:34 PM PDT · 15762 days ago · 5 km deep · 71 km away
37. 1.720km SE of Little Lake, CASun, Aug 7, 4:12 PM PDT · 15762 days ago · 5 km deep · 67 km away
38. 2.333km WNW of Coso Junction, CASun, Aug 7, 11:40 PM PDT · 15762 days ago · 5 km deep · 8 km away
39. 2.133km WSW of Olancha, CAMon, Aug 8, 1:55 AM PDT · 15761 days ago · 5 km deep · 7 km away
40. 1.930km W of Coso Junction, CAMon, Aug 8, 6:30 AM PDT · 15761 days ago · 5 km deep · 12 km away
41. 1.926km NE of Arvin, CAMon, Aug 8, 2:07 PM PDT · 15761 days ago · 3 km deep · 94 km away
42. 1.513km N of Ridgecrest, CAMon, Aug 8, 8:30 PM PDT · 15761 days ago · 7 km deep · 77 km away
43. 1.913km N of Ridgecrest, CAMon, Aug 8, 8:56 PM PDT · 15761 days ago · 9 km deep · 77 km away
44. 1.613km N of Ridgecrest, CAMon, Aug 8, 9:08 PM PDT · 15761 days ago · 9 km deep · 77 km away
45. 1.513km N of Ridgecrest, CAMon, Aug 8, 10:01 PM PDT · 15761 days ago · 8 km deep · 77 km away
46. 1.513km N of Ridgecrest, CAMon, Aug 8, 10:45 PM PDT · 15761 days ago · 9 km deep · 77 km away
47. 1.513km N of Ridgecrest, CATue, Aug 9, 1:39 AM PDT · 15760 days ago · 9 km deep · 77 km away
48. 2.113km SE of Lone Pine, CATue, Aug 9, 8:09 AM PDT · 15760 days ago · 5 km deep · 48 km away
49. 2.422km E of Coso Junction, CATue, Aug 9, 8:10 AM PDT · 15760 days ago · 2 km deep · 58 km away
50. 2.822km E of Coso Junction, CATue, Aug 9, 8:11 AM PDT · 15760 days ago · 0 km deep · 58 km away
51. 2.222km ENE of Coso Junction, CATue, Aug 9, 8:12 AM PDT · 15760 days ago · 1 km deep · 57 km away
52. 1.824km W of Coso Junction, CATue, Aug 9, 2:58 PM PDT · 15760 days ago · 1 km deep · 16 km away
53. 1.627km WNW of Inyokern, CATue, Aug 9, 7:09 PM PDT · 15760 days ago · 2 km deep · 57 km away
54. 1.613km N of Ridgecrest, CATue, Aug 9, 11:15 PM PDT · 15760 days ago · 7 km deep · 77 km away
55. 2.118km WSW of Little Lake, CAWed, Aug 10, 10:16 AM PDT · 15759 days ago · 9 km deep · 40 km away
56. 1.617km WSW of Little Lake, CAWed, Aug 10, 10:19 AM PDT · 15759 days ago · 10 km deep · 42 km away
57. 1.613km N of Ridgecrest, CAWed, Aug 10, 10:32 AM PDT · 15759 days ago · 6 km deep · 77 km away
58. 1.613km N of Ridgecrest, CAWed, Aug 10, 3:03 PM PDT · 15759 days ago · 7 km deep · 76 km away
59. 1.821km E of Coso Junction, CAWed, Aug 10, 8:37 PM PDT · 15759 days ago · 5 km deep · 58 km away
60. 1.831km W of Coso Junction, CAThu, Aug 11, 5:12 AM PDT · 15758 days ago · 5 km deep · 12 km away

The first 60 of 178.

Before

1. 2.420km NE of Olancha, CAThu, Jul 28, 10:35 AM PDT · 15772 days ago · 1 km deep · 50 km away
2. 2.726km NNW of Tehachapi, CAThu, Jul 28, 3:53 AM PDT · 15772 days ago · 6 km deep · 94 km away
3. 2.426km NNW of Tehachapi, CAThu, Jul 28, 3:11 AM PDT · 15772 days ago · 6 km deep · 94 km away
4. 1.626km NNW of Tehachapi, CAWed, Jul 27, 9:48 PM PDT · 15773 days ago · 7 km deep · 94 km away
5. 1.524km NE of Arvin, CAMon, Jul 25, 4:56 AM PDT · 15775 days ago · 5 km deep · 94 km away
6. 2.121km NNW of Tehachapi, CAMon, Jul 25, 4:41 AM PDT · 15775 days ago · 5 km deep · 99 km away
7. 2.426km NE of Arvin, CAMon, Jul 25, 3:34 AM PDT · 15775 days ago · 1 km deep · 93 km away
8. 2.635km NE of Independence, CASun, Jul 24, 6:17 PM PDT · 15776 days ago · 4 km deep · 99 km away
9. 1.85km SSE of Kernville, CASun, Jul 24, 1:46 PM PDT · 15776 days ago · 8 km deep · 52 km away
10. 1.831km W of Coso Junction, CASun, Jul 24, 2:49 AM PDT · 15776 days ago · 4 km deep · 11 km away
11. 1.626km SSW of Bodfish, CASat, Jul 23, 2:42 PM PDT · 15777 days ago · 5 km deep · 92 km away
12. 2.926km NE of Arvin, CASat, Jul 23, 1:29 PM PDT · 15777 days ago · 7 km deep · 93 km away
13. 1.67km SE of Bodfish, CASat, Jul 23, 6:55 AM PDT · 15777 days ago · 4 km deep · 71 km away
14. 1.620km SE of Little Lake, CASat, Jul 23, 1:44 AM PDT · 15777 days ago · 7 km deep · 67 km away
15. 1.96km SSW of Olancha, CAFri, Jul 22, 8:45 PM PDT · 15778 days ago · 1 km deep · 28 km away
16. 1.67km SE of Bodfish, CAFri, Jul 22, 7:42 PM PDT · 15778 days ago · 5 km deep · 71 km away
17. 1.58km SE of Bodfish, CAFri, Jul 22, 5:44 PM PDT · 15778 days ago · 4 km deep · 71 km away
18. 1.78km SE of Bodfish, CAFri, Jul 22, 1:51 PM PDT · 15778 days ago · 4 km deep · 71 km away
19. 2.026km SSW of Bodfish, CAThu, Jul 21, 10:39 PM PDT · 15779 days ago · 4 km deep · 93 km away
20. 1.520km SE of Little Lake, CAThu, Jul 21, 7:06 PM PDT · 15779 days ago · 6 km deep · 67 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci12866. Read Fri, Oct 2, 2026, 7:03 PM UTC.