M1.6 earthquake 12km ESE of Olancha, CA

Magnitude

1.6 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Sat, Jul 25, 1981, 3:25 AM PDT

UTC

1981-07-25 10:25:59 UTC

Depth

4.7 km (2.9 mi), shallow

Epicenter

36.221° N, 117.892° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.3 km horizontally, 31.6 km in depth

Depth from

Operator assigned

Station coverage gap

215°, poorly surrounded by stations

Stations used

5

• Lone Pine, CaliforniaPopulation 2,035. Forecast46 kmSSE
• Ridgecrest, CaliforniaPopulation 28,780. Forecast69 kmNNW
• Visalia, CaliforniaPopulation 130,104. Forecast126 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast243 kmN

After

1. 2.216km ENE of Coso Junction, CASat, Jul 25, 9:32 AM PDT · 16504 days ago · 5 km deep · 16 km away
2. 2.017km ENE of Coso Junction, CASat, Jul 25, 10:03 AM PDT · 16504 days ago · 3 km deep · 14 km away
3. 1.617km NE of Coso Junction, CASat, Jul 25, 10:28 AM PDT · 16504 days ago · 5 km deep · 13 km away
4. 2.216km ENE of Coso Junction, CASat, Jul 25, 11:04 AM PDT · 16504 days ago · 5 km deep · 15 km away
5. 2.916km ENE of Coso Junction, CASat, Jul 25, 1:05 PM PDT · 16504 days ago · 5 km deep · 14 km away
6. 1.814km NE of Coso Junction, CASat, Jul 25, 6:28 PM PDT · 16504 days ago · 5 km deep · 13 km away
7. 1.817km E of Little Lake, CASat, Jul 25, 10:49 PM PDT · 16504 days ago · 14 km deep · 37 km away
8. 1.613km ENE of Coso Junction, CASun, Jul 26, 12:48 AM PDT · 16503 days ago · 5 km deep · 14 km away
9. 2.120km ENE of Coso Junction, CATue, Jul 28, 4:29 AM PDT · 16501 days ago · 2 km deep · 20 km away
10. 1.622km N of Searles Valley, CASat, Aug 1, 6:04 PM PDT · 16497 days ago · 0 km deep · 51 km away
11. 1.72km SW of Kernville, CAMon, Aug 3, 10:55 PM PDT · 16495 days ago · 0 km deep · 73 km away
12. 2.128km N of Searles Valley, CATue, Aug 4, 7:37 PM PDT · 16494 days ago · -1 km deep · 49 km away
13. 1.527km ENE of Little Lake, CAWed, Aug 5, 1:30 AM PDT · 16493 days ago · 1 km deep · 33 km away
14. 1.724km WNW of Inyokern, CAWed, Aug 5, 3:23 PM PDT · 16493 days ago · 8 km deep · 61 km away
15. 2.134km WSW of Olancha, CASat, Aug 8, 6:34 AM PDT · 16490 days ago · 5 km deep · 42 km away
16. 1.916km NNE of Inyokern, CASat, Aug 8, 10:29 AM PDT · 16490 days ago · 1 km deep · 51 km away
17. 2.316km NNE of Inyokern, CASat, Aug 8, 7:19 PM PDT · 16490 days ago · 2 km deep · 52 km away
18. 1.56km E of Coso Junction, CAWed, Aug 12, 9:44 PM PDT · 16486 days ago · 8 km deep · 21 km away
19. 1.68km SE of Independence, CAFri, Aug 14, 9:02 PM PDT · 16484 days ago · 5 km deep · 64 km away
20. 1.529km ESE of Porterville, CAMon, Aug 17, 5:34 PM PDT · 16481 days ago · 5 km deep · 80 km away
21. 1.79km ESE of Coso Junction, CAMon, Aug 17, 6:59 PM PDT · 16481 days ago · 3 km deep · 23 km away
22. 1.715km NNE of Inyokern, CAWed, Aug 19, 7:43 PM PDT · 16479 days ago · 0 km deep · 53 km away
23. 1.67km E of Coso Junction, CAThu, Aug 20, 2:20 PM PDT · 16478 days ago · 7 km deep · 19 km away
24. 1.624km SSW of Little Lake, CAThu, Aug 20, 6:44 PM PDT · 16478 days ago · 9 km deep · 54 km away
25. 2.16km E of Coso Junction, CAThu, Aug 20, 8:24 PM PDT · 16478 days ago · -1 km deep · 20 km away
26. 1.913km ENE of Little Lake, CAFri, Aug 21, 6:26 AM PDT · 16477 days ago · 0 km deep · 29 km away
27. 1.713km E of Little Lake, CAFri, Aug 21, 10:44 AM PDT · 16477 days ago · 5 km deep · 32 km away
28. 2.06km ESE of Coso Junction, CASat, Aug 22, 11:02 AM PDT · 16476 days ago · -1 km deep · 21 km away
29. 1.927km WSW of Coso Junction, CAMon, Aug 24, 4:20 AM PDT · 16474 days ago · 5 km deep · 42 km away
30. 1.77km NW of Olancha, CAMon, Aug 24, 9:36 PM PDT · 16474 days ago · 5 km deep · 19 km away
31. 1.513km NNE of Inyokern, CAMon, Aug 31, 1:57 AM PDT · 16467 days ago · -1 km deep · 55 km away
32. 1.814km NE of Inyokern, CAMon, Aug 31, 4:03 AM PDT · 16467 days ago · -1 km deep · 55 km away
33. 1.715km NE of Inyokern, CASat, Sep 5, 7:09 AM PDT · 16462 days ago · 4 km deep · 54 km away
34. 1.516km NE of Coso Junction, CASat, Sep 5, 8:32 AM PDT · 16462 days ago · 4 km deep · 11 km away
35. 1.514km E of Coso Junction, CASat, Sep 5, 12:00 PM PDT · 16462 days ago · 4 km deep · 20 km away
36. 1.67km WNW of Little Lake, CASun, Sep 6, 6:35 AM PDT · 16461 days ago · 4 km deep · 30 km away
37. 2.120km WNW of Inyokern, CAWed, Sep 9, 10:42 AM PDT · 16458 days ago · 1 km deep · 56 km away
38. 2.616km SSW of Searles Valley, CAMon, Sep 14, 12:41 PM PDT · 16453 days ago · -1 km deep · 76 km away
39. 2.020km WNW of Searles Valley, CAMon, Sep 14, 6:53 PM PDT · 16453 days ago · 1 km deep · 49 km away
40. 1.65km WNW of Little Lake, CATue, Sep 15, 5:02 AM PDT · 16452 days ago · 4 km deep · 30 km away
41. 1.59km SSW of Olancha, CAFri, Sep 18, 6:23 AM PDT · 16449 days ago · 5 km deep · 14 km away
42. 2.116km SSW of Searles Valley, CAFri, Sep 18, 5:34 PM PDT · 16449 days ago · 2 km deep · 76 km away
43. 2.321km WSW of Olancha, CAFri, Sep 18, 6:56 PM PDT · 16449 days ago · 5 km deep · 29 km away
44. 2.511km SSW of Olancha, CAFri, Sep 18, 11:18 PM PDT · 16449 days ago · 5 km deep · 15 km away
45. 1.514km S of Olancha, CAFri, Sep 18, 11:30 PM PDT · 16449 days ago · 5 km deep · 15 km away
46. 1.79km WNW of Olancha, CASat, Sep 19, 12:17 AM PDT · 16448 days ago · 5 km deep · 21 km away
47. 1.56km WNW of Olancha, CASat, Sep 19, 7:00 AM PDT · 16448 days ago · 5 km deep · 18 km away
48. 2.410km E of Lone Pine, CASun, Sep 20, 6:30 AM PDT · 16447 days ago · 5 km deep · 40 km away

Before

1. 2.013km SE of Olancha, CAFri, Jul 24, 2:15 PM PDT · 16505 days ago · 5 km deep · 0 km away
2. 1.522km E of Coso Junction, CAThu, Jul 23, 10:41 PM PDT · 16506 days ago · 5 km deep · 23 km away
3. 1.82km E of Little Lake, CAThu, Jul 23, 3:26 PM PDT · 16506 days ago · 4 km deep · 32 km away
4. 2.020km NNE of Inyokern, CAWed, Jul 22, 11:45 AM PDT · 16507 days ago · 4 km deep · 49 km away
5. 2.515km SE of Lone Pine, CATue, Jul 21, 10:09 AM PDT · 16508 days ago · 1 km deep · 31 km away
6. 2.416km NNE of Inyokern, CASun, Jul 19, 12:06 PM PDT · 16510 days ago · 2 km deep · 53 km away
7. 1.918km WNW of Johannesburg, CASun, Jul 19, 11:09 AM PDT · 16510 days ago · 3 km deep · 91 km away
8. 1.717km W of Johannesburg, CASun, Jul 19, 5:07 AM PDT · 16510 days ago · 4 km deep · 91 km away
9. 2.118km WNW of Johannesburg, CASun, Jul 19, 4:45 AM PDT · 16510 days ago · 2 km deep · 90 km away
10. 1.719km SE of Little Lake, CASun, Jul 19, 3:03 AM PDT · 16510 days ago · 3 km deep · 47 km away
11. 2.418km WNW of Johannesburg, CASat, Jul 18, 9:44 PM PDT · 16511 days ago · 3 km deep · 91 km away
12. 3.021km WNW of Inyokern, CASat, Jul 18, 2:22 PM PDT · 16511 days ago · -1 km deep · 55 km away
13. 1.817km W of Johannesburg, CATue, Jul 14, 3:10 AM PDT · 16515 days ago · 5 km deep · 96 km away
14. 1.915km NE of Inyokern, CAMon, Jul 13, 2:06 PM PDT · 16516 days ago · 4 km deep · 54 km away
15. 2.015km NNE of Inyokern, CAMon, Jul 13, 6:40 AM PDT · 16516 days ago · 2 km deep · 53 km away
16. 1.519km SE of Little Lake, CASun, Jul 12, 10:38 PM PDT · 16517 days ago · 4 km deep · 47 km away
17. 1.832km ENE of Coso Junction, CASat, Jul 11, 7:14 AM PDT · 16518 days ago · -1 km deep · 27 km away
18. 1.816km N of Ridgecrest, CAMon, Jul 6, 1:15 PM PDT · 16523 days ago · 6 km deep · 53 km away
19. 2.014km NNE of Inyokern, CASun, Jul 5, 7:47 PM PDT · 16524 days ago · 0 km deep · 53 km away
20. 2.212km NNE of Inyokern, CASun, Jul 5, 5:23 PM PDT · 16524 days ago · -1 km deep · 55 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci520085. Read Thu, Oct 1, 2026, 6:45 PM UTC.