M2.5 earthquake 27km SE of Trona, CA

Magnitude

2.5 (mc), micro

Local time

Fri, Oct 31, 1986, 2:02 PM PST

UTC

1986-10-31 22:02:26 UTC

Depth

8.3 km (5.2 mi), shallow

Epicenter

35.584° N, 117.174° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

From location

Station coverage gap

174°

Stations used

0

• Searles Valley, CaliforniaPopulation 1,739. Forecast29 kmSE
• Ridgecrest, CaliforniaPopulation 28,780. Forecast45 kmE
• Victorville, CaliforniaPopulation 122,225. Forecast117 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast196 kmNNE

After

1. 1.821km W of Johannesburg, CAFri, Oct 31, 2:22 PM PST · 14571 days ago · 8 km deep · 67 km away
2. 1.821km W of Johannesburg, CAFri, Oct 31, 7:26 PM PST · 14571 days ago · 5 km deep · 67 km away
3. 1.824km NNE of California City, CASat, Nov 1, 4:19 AM PST · 14570 days ago · 8 km deep · 72 km away
4. 1.617km E of Little Lake, CASat, Nov 1, 7:20 PM PST · 14570 days ago · 5 km deep · 61 km away
5. 2.528km SE of Trona, CATue, Nov 4, 4:08 PM PST · 14567 days ago · 5 km deep · 1 km away
6. 1.930km NE of Boron, CAWed, Nov 5, 5:34 PM PST · 14566 days ago · 3 km deep · 51 km away
7. 1.85km WNW of Little Lake, CAThu, Nov 6, 9:14 PM PST · 14565 days ago · 7 km deep · 82 km away
8. 2.111km ENE of Barstow, CAFri, Nov 7, 2:12 AM PST · 14565 days ago · 4 km deep · 76 km away
9. 2.18km W of Searles Valley, CAFri, Nov 7, 9:24 AM PST · 14564 days ago · 5 km deep · 35 km away
10. 1.611km ENE of Little Lake, CASun, Nov 9, 8:16 AM PST · 14562 days ago · 5 km deep · 69 km away
11. 1.817km NE of Barstow, CATue, Nov 11, 2:57 AM PST · 14561 days ago · 7 km deep · 68 km away
12. 1.714km NNE of Inyokern, CATue, Nov 11, 4:53 AM PST · 14560 days ago · 3 km deep · 55 km away
13. 2.117km NE of Barstow, CATue, Nov 11, 12:00 PM PST · 14560 days ago · 5 km deep · 69 km away
14. 1.914km E of Little Lake, CATue, Nov 18, 10:48 PM PST · 14553 days ago · 1 km deep · 65 km away
15. 1.729km E of Coso Junction, CAWed, Nov 19, 2:00 AM PST · 14553 days ago · 6 km deep · 69 km away
16. 2.129km NNW of California City, CAWed, Nov 19, 3:05 AM PST · 14552 days ago · 4 km deep · 89 km away
17. 2.212km NE of Coso Junction, CASun, Nov 23, 4:11 AM PST · 14548 days ago · 5 km deep · 86 km away
18. 2.220km NNE of California City, CASun, Nov 23, 8:15 AM PST · 14548 days ago · 6 km deep · 76 km away
19. 1.621km SSW of Little Lake, CAThu, Nov 27, 10:24 PM PST · 14544 days ago · 8 km deep · 78 km away
20. 1.813km SE of Olancha, CASat, Nov 29, 3:51 PM PST · 14542 days ago · -1 km deep · 95 km away
21. 2.014km ENE of Ridgecrest, CASat, Nov 29, 11:07 PM PST · 14542 days ago · 6 km deep · 35 km away
22. 1.817km W of Johannesburg, CASun, Nov 30, 12:06 AM PST · 14542 days ago · 9 km deep · 62 km away
23. 2.125km S of Tecopa, CASun, Nov 30, 3:42 PM PST · 14541 days ago · 5 km deep · 85 km away
24. 2.427km S of Tecopa, CASun, Nov 30, 9:20 PM PST · 14541 days ago · 5 km deep · 85 km away
25. 2.125km S of Tecopa, CAMon, Dec 1, 3:31 AM PST · 14540 days ago · 5 km deep · 85 km away
26. 1.71km NNW of Little Lake, CAWed, Dec 3, 6:27 AM PST · 14538 days ago · 10 km deep · 77 km away
27. 1.914km NE of Coso Junction, CAThu, Dec 4, 12:18 AM PST · 14538 days ago · 1 km deep · 88 km away
28. 1.830km N of Searles Valley, CAThu, Dec 4, 10:21 AM PST · 14537 days ago · 5 km deep · 53 km away
29. 1.611km ENE of Coso Junction, CAFri, Dec 5, 8:15 PM PST · 14536 days ago · 3 km deep · 81 km away
30. 1.811km ENE of Coso Junction, CASat, Dec 6, 12:12 PM PST · 14535 days ago · -1 km deep · 82 km away
31. 1.525km E of Little Lake, CAMon, Dec 8, 3:24 PM PST · 14533 days ago · 4 km deep · 57 km away
32. 1.617km E of Little Lake, CAWed, Dec 10, 7:17 AM PST · 14531 days ago · 0 km deep · 62 km away
33. 2.015km WNW of Barstow, CAWed, Dec 10, 7:43 PM PST · 14531 days ago · -1 km deep · 68 km away
34. 2.217km NW of Barstow, CAWed, Dec 10, 8:47 PM PST · 14531 days ago · 4 km deep · 64 km away
35. 2.217km E of Boron, CASat, Dec 13, 1:37 PM PST · 14528 days ago · 2 km deep · 71 km away
36. 2.538km SSE of Fort Irwin, CASun, Dec 14, 11:00 PM PST · 14527 days ago · 5 km deep · 92 km away
37. 2.518km ENE of Barstow, CAWed, Dec 17, 5:37 AM PST · 14524 days ago · 5 km deep · 77 km away
38. 2.022km E of Little Lake, CAThu, Dec 18, 8:27 PM PST · 14523 days ago · 0 km deep · 60 km away
39. 1.520km E of Coso Junction, CASun, Dec 21, 12:31 AM PST · 14521 days ago · 1 km deep · 74 km away
40. 1.818km E of Coso Junction, CASun, Dec 21, 12:32 AM PST · 14521 days ago · 2 km deep · 75 km away
41. 2.911km ESE of Trona, CAThu, Dec 25, 11:53 AM PST · 14516 days ago · 5 km deep · 18 km away
42. 1.724km NNW of Barstow, CAFri, Dec 26, 11:50 AM PST · 14515 days ago · 5 km deep · 55 km away
43. 1.78km SSW of Johannesburg, CASat, Dec 27, 4:59 AM PST · 14514 days ago · 5 km deep · 53 km away
44. 1.923km WNW of Inyokern, CASun, Dec 28, 10:14 PM PST · 14513 days ago · 7 km deep · 80 km away
45. 1.516km S of Little Lake, CAMon, Dec 29, 7:25 AM PST · 14512 days ago · 4 km deep · 71 km away

Before

1. 2.128km SE of Trona, CAFri, Oct 31, 6:35 AM PST · 14571 days ago · 11 km deep · 1 km away
2. 3.827km SE of Trona, CAFri, Oct 31, 6:27 AM PST · 14571 days ago · 6 km deep · 1 km away
3. 1.724km NNE of California City, CAThu, Oct 30, 9:39 PM PST · 14572 days ago · 3 km deep · 74 km away
4. 1.618km ESE of Little Lake, CAThu, Oct 30, 7:10 PM PST · 14572 days ago · 8 km deep · 60 km away
5. 1.712km NE of Coso Junction, CAWed, Oct 29, 5:39 PM PST · 14573 days ago · 2 km deep · 83 km away
6. 1.611km NNW of Ridgecrest, CAMon, Oct 27, 3:29 PM PST · 14575 days ago · 5 km deep · 51 km away
7. 2.010km NNW of Ridgecrest, CAMon, Oct 27, 3:02 PM PST · 14575 days ago · 4 km deep · 50 km away
8. 1.622km SSW of Little Lake, CAMon, Oct 27, 12:59 AM PST · 14576 days ago · 4 km deep · 78 km away
9. 1.910km ENE of Coso Junction, CASun, Oct 26, 11:55 PM PST · 14576 days ago · 2 km deep · 84 km away
10. 1.516km ENE of Coso Junction, CASun, Oct 26, 7:29 PM PST · 14576 days ago · 3 km deep · 78 km away
11. 2.310km NE of Coso Junction, CASun, Oct 26, 1:39 PM PST · 14576 days ago · 3 km deep · 84 km away
12. 2.022km E of Johannesburg, CASun, Oct 26, 2:18 AM PST · 14577 days ago · 7 km deep · 28 km away
13. 1.818km SW of Fort Irwin, CASun, Oct 26, 1:46 AM PDT · 14577 days ago · 5 km deep · 55 km away
14. 3.010km ENE of Little Lake, CASat, Oct 25, 10:18 PM PDT · 14577 days ago · 5 km deep · 72 km away
15. 1.611km ENE of Coso Junction, CASat, Oct 25, 10:00 AM PDT · 14577 days ago · 3 km deep · 83 km away
16. 1.711km ENE of Coso Junction, CASat, Oct 25, 9:52 AM PDT · 14577 days ago · 3 km deep · 83 km away
17. 3.110km ENE of Coso Junction, CASat, Oct 25, 9:40 AM PDT · 14577 days ago · 3 km deep · 83 km away
18. 1.610km ENE of Coso Junction, CAFri, Oct 24, 9:45 PM PDT · 14578 days ago · 3 km deep · 83 km away
19. 1.710km ENE of Coso Junction, CAFri, Oct 24, 6:06 AM PDT · 14578 days ago · 2 km deep · 83 km away
20. 1.710km ENE of Coso Junction, CAFri, Oct 24, 5:20 AM PDT · 14578 days ago · 3 km deep · 83 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci712122. Read Tue, Sep 22, 2026, 10:35 PM UTC.