M2.4 earthquake 20km NE of Olancha, CA

Magnitude

2.4 (ML, local (Richter)), micro

Magnitude from

Southern California Seismic Network

Local time

Thu, Jul 28, 1983, 10:35 AM PDT

UTC

1983-07-28 17:35:54 UTC

Depth

0.6 km (0.4 mi), shallow

Epicenter

36.422° N, 117.873° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 1.4 km in depth

Magnitude uncertainty

±0.01

Depth from

From location

Station coverage gap

182°, poorly surrounded by stations

Stations used

22

• Lone Pine, CaliforniaPopulation 2,035. Forecast27 kmSE
• Ridgecrest, CaliforniaPopulation 28,780. Forecast91 kmNNW
• Visalia, CaliforniaPopulation 130,104. Forecast127 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast266 kmN

After

1. 1.932km WSW of Olancha, CAThu, Jul 28, 4:00 PM PDT · 15772 days ago · 5 km deep · 50 km away
2. 1.519km N of Kernville, CASat, Jul 30, 6:40 AM PDT · 15771 days ago · 10 km deep · 74 km away
3. 1.619km SE of Little Lake, CASat, Jul 30, 9:55 PM PDT · 15770 days ago · 7 km deep · 68 km away
4. 2.09km NE of Little Lake, CASun, Jul 31, 9:08 AM PDT · 15770 days ago · 9 km deep · 47 km away
5. 1.54km WSW of Olancha, CASun, Jul 31, 11:08 PM PDT · 15769 days ago · 4 km deep · 23 km away
6. 1.715km NNE of Inyokern, CAMon, Aug 1, 6:43 AM PDT · 15769 days ago · 7 km deep · 74 km away
7. 1.819km NNE of Inyokern, CAMon, Aug 1, 8:16 AM PDT · 15769 days ago · 6 km deep · 69 km away
8. 1.720km ENE of Little Lake, CATue, Aug 2, 5:37 AM PDT · 15768 days ago · 2 km deep · 51 km away
9. 2.62km N of Kernville, CAThu, Aug 4, 4:48 AM PDT · 15766 days ago · 6 km deep · 87 km away
10. 2.632km W of Olancha, CAThu, Aug 4, 8:39 AM PDT · 15766 days ago · 4 km deep · 46 km away
11. 3.02km NNW of Kernville, CAThu, Aug 4, 9:04 AM PDT · 15766 days ago · 9 km deep · 88 km away
12. 1.92km NNW of Kernville, CAThu, Aug 4, 11:03 AM PDT · 15766 days ago · 9 km deep · 88 km away
13. 1.72km NE of Kernville, CAThu, Aug 4, 7:20 PM PDT · 15765 days ago · 5 km deep · 87 km away
14. 1.519km SE of Little Lake, CAFri, Aug 5, 2:20 AM PDT · 15765 days ago · 7 km deep · 68 km away
15. 1.920km SE of Little Lake, CAFri, Aug 5, 10:59 AM PDT · 15765 days ago · 7 km deep · 68 km away
16. 2.49km S of Furnace Creek, CASat, Aug 6, 12:28 AM PDT · 15764 days ago · 5 km deep · 91 km away
17. 2.145km SW of Stovepipe Wells, CASat, Aug 6, 4:23 AM PDT · 15764 days ago · 5 km deep · 39 km away
18. 2.331km W of Olancha, CASat, Aug 6, 10:27 AM PDT · 15764 days ago · 6 km deep · 45 km away
19. 2.319km SE of Little Lake, CASat, Aug 6, 12:41 PM PDT · 15764 days ago · 4 km deep · 68 km away
20. 1.620km SE of Little Lake, CASat, Aug 6, 12:54 PM PDT · 15764 days ago · 6 km deep · 68 km away
21. 1.819km SE of Little Lake, CASat, Aug 6, 2:30 PM PDT · 15764 days ago · 5 km deep · 68 km away
22. 1.820km SE of Little Lake, CASat, Aug 6, 6:16 PM PDT · 15763 days ago · 7 km deep · 68 km away
23. 1.616km NNE of Inyokern, CASun, Aug 7, 3:34 PM PDT · 15763 days ago · 5 km deep · 74 km away
24. 1.720km SE of Little Lake, CASun, Aug 7, 4:12 PM PDT · 15762 days ago · 5 km deep · 68 km away
25. 2.333km WNW of Coso Junction, CASun, Aug 7, 11:40 PM PDT · 15762 days ago · 5 km deep · 52 km away
26. 2.133km WSW of Olancha, CAMon, Aug 8, 1:55 AM PDT · 15762 days ago · 5 km deep · 52 km away
27. 1.930km W of Coso Junction, CAMon, Aug 8, 6:30 AM PDT · 15762 days ago · 5 km deep · 53 km away
28. 1.513km N of Ridgecrest, CAMon, Aug 8, 8:30 PM PDT · 15761 days ago · 7 km deep · 78 km away
29. 1.913km N of Ridgecrest, CAMon, Aug 8, 8:56 PM PDT · 15761 days ago · 9 km deep · 78 km away
30. 1.613km N of Ridgecrest, CAMon, Aug 8, 9:08 PM PDT · 15761 days ago · 9 km deep · 78 km away
31. 1.513km N of Ridgecrest, CAMon, Aug 8, 10:01 PM PDT · 15761 days ago · 8 km deep · 78 km away
32. 1.513km N of Ridgecrest, CAMon, Aug 8, 10:45 PM PDT · 15761 days ago · 9 km deep · 78 km away
33. 1.513km N of Ridgecrest, CATue, Aug 9, 1:39 AM PDT · 15761 days ago · 9 km deep · 78 km away
34. 2.113km SE of Lone Pine, CATue, Aug 9, 8:09 AM PDT · 15761 days ago · 5 km deep · 12 km away
35. 2.422km E of Coso Junction, CATue, Aug 9, 8:10 AM PDT · 15761 days ago · 2 km deep · 41 km away
36. 2.822km E of Coso Junction, CATue, Aug 9, 8:11 AM PDT · 15761 days ago · 0 km deep · 42 km away
37. 2.222km ENE of Coso Junction, CATue, Aug 9, 8:12 AM PDT · 15761 days ago · 1 km deep · 39 km away
38. 1.824km W of Coso Junction, CATue, Aug 9, 2:58 PM PDT · 15761 days ago · 1 km deep · 49 km away
39. 1.627km WNW of Inyokern, CATue, Aug 9, 7:09 PM PDT · 15760 days ago · 2 km deep · 83 km away
40. 1.613km N of Ridgecrest, CATue, Aug 9, 11:15 PM PDT · 15760 days ago · 7 km deep · 78 km away
41. 2.118km WSW of Little Lake, CAWed, Aug 10, 10:16 AM PDT · 15760 days ago · 9 km deep · 64 km away
42. 1.617km WSW of Little Lake, CAWed, Aug 10, 10:19 AM PDT · 15760 days ago · 10 km deep · 64 km away
43. 1.613km N of Ridgecrest, CAWed, Aug 10, 10:32 AM PDT · 15760 days ago · 6 km deep · 78 km away
44. 1.613km N of Ridgecrest, CAWed, Aug 10, 3:03 PM PDT · 15760 days ago · 7 km deep · 78 km away
45. 1.821km E of Coso Junction, CAWed, Aug 10, 8:37 PM PDT · 15759 days ago · 5 km deep · 41 km away
46. 1.831km W of Coso Junction, CAThu, Aug 11, 5:12 AM PDT · 15759 days ago · 5 km deep · 53 km away
47. 2.226km W of Inyokern, CAThu, Aug 11, 6:58 AM PDT · 15759 days ago · 5 km deep · 84 km away
48. 1.718km SSE of Lone Pine, CAFri, Aug 12, 4:32 PM PDT · 15757 days ago · 5 km deep · 9 km away
49. 1.735km NE of Olancha, CAFri, Aug 12, 5:01 PM PDT · 15757 days ago · 5 km deep · 18 km away
50. 1.814km ENE of Coso Junction, CAFri, Aug 12, 11:19 PM PDT · 15757 days ago · 5 km deep · 38 km away
51. 1.820km SE of Little Lake, CASun, Aug 14, 5:32 AM PDT · 15756 days ago · 7 km deep · 67 km away
52. 1.613km E of Little Lake, CASun, Aug 14, 6:44 PM PDT · 15755 days ago · 5 km deep · 53 km away
53. 1.613km E of Little Lake, CASun, Aug 14, 6:45 PM PDT · 15755 days ago · 4 km deep · 53 km away
54. 2.122km ENE of Coso Junction, CATue, Aug 16, 6:16 AM PDT · 15754 days ago · 5 km deep · 40 km away
55. 1.915km NNE of Inyokern, CATue, Aug 16, 6:33 PM PDT · 15753 days ago · 4 km deep · 74 km away
56. 1.517km WSW of Little Lake, CAWed, Aug 17, 3:47 AM PDT · 15753 days ago · 9 km deep · 63 km away
57. 1.615km E of Little Lake, CAThu, Aug 18, 9:00 AM PDT · 15752 days ago · 4 km deep · 56 km away
58. 1.92km SW of Little Lake, CAFri, Aug 19, 2:25 AM PDT · 15751 days ago · 4 km deep · 56 km away
59. 2.28km S of Olancha, CATue, Aug 23, 10:29 AM PDT · 15747 days ago · 5 km deep · 27 km away
60. 2.110km NNE of Inyokern, CAWed, Aug 24, 4:39 AM PDT · 15746 days ago · 1 km deep · 79 km away

The first 60 of 109.

Before

1. 2.635km NE of Independence, CASun, Jul 24, 6:17 PM PDT · 15776 days ago · 4 km deep · 62 km away
2. 1.85km SSE of Kernville, CASun, Jul 24, 1:46 PM PDT · 15777 days ago · 8 km deep · 92 km away
3. 1.831km W of Coso Junction, CASun, Jul 24, 2:49 AM PDT · 15777 days ago · 4 km deep · 52 km away
4. 1.620km SE of Little Lake, CASat, Jul 23, 1:44 AM PDT · 15778 days ago · 7 km deep · 68 km away
5. 1.96km SSW of Olancha, CAFri, Jul 22, 8:45 PM PDT · 15778 days ago · 1 km deep · 26 km away
6. 1.520km SE of Little Lake, CAThu, Jul 21, 7:06 PM PDT · 15779 days ago · 6 km deep · 68 km away
7. 1.626km WNW of Inyokern, CAThu, Jul 21, 1:23 AM PDT · 15780 days ago · 2 km deep · 81 km away
8. 2.015km NE of Inyokern, CATue, Jul 19, 10:45 AM PDT · 15782 days ago · 5 km deep · 75 km away
9. 1.531km N of Kernville, CATue, Jul 19, 1:01 AM PDT · 15782 days ago · 5 km deep · 65 km away
10. 1.94km NW of Olancha, CAMon, Jul 18, 7:25 PM PDT · 15782 days ago · 1 km deep · 20 km away
11. 1.711km NNW of Kernville, CAMon, Jul 18, 5:09 PM PDT · 15782 days ago · 10 km deep · 85 km away
12. 1.730km W of Olancha, CASun, Jul 17, 10:50 PM PDT · 15783 days ago · 5 km deep · 45 km away
13. 1.523km WNW of Inyokern, CASat, Jul 16, 6:07 PM PDT · 15784 days ago · 3 km deep · 77 km away
14. 1.613km N of Ridgecrest, CASat, Jul 16, 1:27 PM PDT · 15785 days ago · 8 km deep · 78 km away
15. 1.78km WNW of Wofford Heights, CAFri, Jul 15, 8:42 PM PDT · 15785 days ago · -1 km deep · 97 km away
16. 1.528km W of Coso Junction, CAFri, Jul 15, 9:40 AM PDT · 15786 days ago · 5 km deep · 52 km away
17. 1.631km WNW of Coso Junction, CAThu, Jul 14, 11:18 PM PDT · 15786 days ago · 5 km deep · 51 km away
18. 1.814km ESE of Porterville, CAThu, Jul 14, 9:02 AM PDT · 15787 days ago · 5 km deep · 99 km away
19. 2.23km NNW of Wofford Heights, CAThu, Jul 14, 6:12 AM PDT · 15787 days ago · 2 km deep · 94 km away
20. 1.730km W of Coso Junction, CAWed, Jul 13, 11:43 PM PDT · 15787 days ago · 5 km deep · 52 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci12839. Read Sat, Oct 3, 2026, 10:07 AM UTC.