M2.1 earthquake 23km NNW of Tehachapi, CA

Magnitude

2.1 (mh), micro

Local time

Mon, Dec 4, 1978, 5:15 AM PST

UTC

1978-12-04 13:15:52 UTC

Depth

0.4 km (0.3 mi), shallow

Epicenter

35.317° N, 118.555° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.24

Depth from

From location

Station coverage gap

105°

Stations used

14

• Bear Valley Springs, CaliforniaPopulation 5,172. Forecast19 kmNNE
• Tehachapi, CaliforniaPopulation 13,021. Forecast23 kmNNW
• Bakersfield, CaliforniaPopulation 373,640. Forecast43 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast144 kmNNW

After

1. 2.628km ESE of Kernville, CATue, Dec 5, 2:31 AM PST · 17463 days ago · 5 km deep · 54 km away
2. 2.37km ESE of Coso Junction, CAWed, Dec 6, 1:41 AM PST · 17462 days ago · 5 km deep · 98 km away
3. 2.25km ESE of Coso Junction, CAWed, Dec 6, 8:34 AM PST · 17461 days ago · 6 km deep · 98 km away
4. 1.68km ENE of Santa Clarita, CAWed, Dec 6, 10:56 AM PST · 17461 days ago · 15 km deep · 97 km away
5. 2.220km NW of Tehachapi, CAThu, Dec 7, 3:22 PM PST · 17460 days ago · 5 km deep · 5 km away
6. 2.12km SSW of Valencia, CASun, Dec 10, 10:41 AM PST · 17457 days ago · 4 km deep · 98 km away
7. 2.013km SSE of Little Lake, CAFri, Dec 15, 9:53 AM PST · 17452 days ago · 6 km deep · 87 km away
8. 1.723km E of Kernville, CASat, Dec 16, 1:09 PM PST · 17451 days ago · 10 km deep · 57 km away
9. 2.02km W of Coso Junction, CAMon, Dec 18, 5:30 AM PST · 17449 days ago · 3 km deep · 96 km away
10. 1.617km SSE of Tehachapi, CATue, Dec 19, 6:56 AM PST · 17448 days ago · 11 km deep · 39 km away
11. 2.913km E of Ridgecrest, CATue, Dec 19, 8:14 PM PST · 17448 days ago · 4 km deep · 98 km away
12. 1.611km SE of Bodfish, CAWed, Dec 20, 11:04 AM PST · 17447 days ago · 6 km deep · 26 km away
13. 2.332km N of Kernville, CAThu, Dec 21, 7:20 PM PST · 17446 days ago · 6 km deep · 82 km away
14. 2.220km SSW of Little Lake, CASat, Dec 23, 4:05 PM PST · 17444 days ago · 7 km deep · 72 km away
15. 2.219km SSW of Little Lake, CASat, Dec 23, 4:43 PM PST · 17444 days ago · 5 km deep · 72 km away
16. 1.719km SSW of Little Lake, CASun, Dec 24, 5:18 AM PST · 17443 days ago · 6 km deep · 72 km away
17. 2.912km S of Bodfish, CAMon, Dec 25, 2:25 AM PST · 17443 days ago · 6 km deep · 19 km away
18. 2.017km ENE of Maricopa, CAThu, Dec 28, 9:41 AM PST · 17439 days ago · 4 km deep · 65 km away
19. 2.320km N of Pine Mountain Club, CASat, Dec 30, 9:24 AM PST · 17437 days ago · 1 km deep · 63 km away
20. 2.98km ESE of Bakersfield, CASun, Dec 31, 1:04 PM PST · 17436 days ago · 6 km deep · 36 km away
21. 3.010km N of Pine Mountain Club, CAMon, Jan 1, 12:38 PM PST · 17435 days ago · 0 km deep · 70 km away
22. 1.610km SE of Gorman, CAMon, Jan 1, 8:01 PM PST · 17435 days ago · 11 km deep · 67 km away
23. 2.032km W of Coso Junction, CAMon, Jan 1, 10:41 PM PST · 17435 days ago · 3 km deep · 89 km away
24. 3.311km N of Pine Mountain Club, CAWed, Jan 3, 5:36 AM PST · 17433 days ago · 1 km deep · 69 km away
25. 3.522km N of Pine Mountain Club, CAWed, Jan 3, 12:00 PM PST · 17433 days ago · 9 km deep · 62 km away
26. 1.925km NE of Arvin, CASat, Jan 6, 4:58 PM PST · 17430 days ago · 6 km deep · 5 km away
27. 1.78km NE of Valencia, CASun, Jan 7, 5:33 AM PST · 17429 days ago · 14 km deep · 90 km away
28. 1.57km ENE of Santa Clarita, CAFri, Jan 12, 2:03 AM PST · 17425 days ago · 6 km deep · 99 km away
29. 3.023km WNW of Inyokern, CASat, Jan 13, 1:29 AM PST · 17424 days ago · 0 km deep · 63 km away
30. 2.723km WNW of Inyokern, CASat, Jan 13, 2:07 AM PST · 17424 days ago · 0 km deep · 63 km away
31. 2.326km SW of Little Lake, CASat, Jan 13, 2:18 AM PST · 17424 days ago · 2 km deep · 64 km away
32. 2.28km SSW of Little Lake, CASat, Jan 13, 12:27 PM PST · 17423 days ago · 9 km deep · 83 km away
33. 2.810km WNW of Tehachapi, CASun, Jan 14, 5:10 PM PST · 17422 days ago · 9 km deep · 18 km away
34. 2.119km NW of Grapevine, CAMon, Jan 15, 9:59 PM PST · 17421 days ago · 6 km deep · 54 km away
35. 2.925km WNW of Inyokern, CAWed, Jan 17, 12:56 PM PST · 17419 days ago · 0 km deep · 64 km away
36. 2.19km NNW of Kernville, CAWed, Jan 17, 4:49 PM PST · 17419 days ago · 4 km deep · 57 km away
37. 2.326km WNW of Inyokern, CAWed, Jan 17, 10:38 PM PST · 17419 days ago · 6 km deep · 63 km away
38. 2.516km NE of Boron, CAThu, Jan 18, 6:10 AM PST · 17418 days ago · 6 km deep · 98 km away
39. 1.822km NNW of Tehachapi, CASat, Jan 20, 4:17 PM PST · 17416 days ago · 6 km deep · 2 km away
40. 2.58km W of Delano, CASat, Jan 20, 5:16 PM PST · 17416 days ago · 6 km deep · 88 km away
41. 1.912km N of Ridgecrest, CASun, Jan 21, 6:09 AM PST · 17415 days ago · 5 km deep · 92 km away
42. 1.94km SE of Ridgecrest, CASun, Jan 21, 8:18 AM PST · 17415 days ago · 3 km deep · 87 km away
43. 2.019km ESE of Johannesburg, CASun, Jan 21, 12:59 PM PST · 17415 days ago · 6 km deep · 100 km away
44. 1.813km E of Maricopa, CAMon, Jan 22, 9:21 AM PST · 17414 days ago · 20 km deep · 70 km away
45. 1.913km ESE of Tehachapi, CAWed, Jan 24, 5:21 PM PST · 17412 days ago · 3 km deep · 34 km away
46. 2.59km SSE of McFarland, CASat, Jan 27, 10:48 PM PST · 17409 days ago · 18 km deep · 65 km away
47. 1.96km W of Grapevine, CASun, Jan 28, 4:30 AM PST · 17408 days ago · 15 km deep · 58 km away

Before

1. 2.317km S of Bodfish, CASat, Dec 2, 2:16 PM PST · 17465 days ago · 5 km deep · 14 km away
2. 1.915km N of Grapevine, CAFri, Dec 1, 2:52 PM PST · 17466 days ago · 0 km deep · 45 km away
3. 3.016km NE of Boron, CATue, Nov 28, 8:54 AM PST · 17469 days ago · 7 km deep · 99 km away
4. 2.314km NE of Boron, CATue, Nov 28, 4:42 AM PST · 17469 days ago · 5 km deep · 98 km away
5. 2.125km S of Bodfish, CAMon, Nov 27, 1:49 AM PST · 17471 days ago · 6 km deep · 6 km away
6. 2.35km SSE of Lamont, CASat, Nov 25, 10:57 PM PST · 17472 days ago · 13 km deep · 32 km away
7. 1.52km NNW of Frazier Park, CASat, Nov 25, 8:52 PM PST · 17472 days ago · 10 km deep · 64 km away
8. 2.122km SW of Bodfish, CASat, Nov 25, 1:59 AM PST · 17473 days ago · 1 km deep · 15 km away
9. 1.825km SW of Little Lake, CAFri, Nov 24, 7:33 PM PST · 17473 days ago · 6 km deep · 66 km away
10. 1.86km NW of Little Lake, CAThu, Nov 23, 5:42 AM PST · 17474 days ago · 6 km deep · 90 km away
11. 1.810km SW of Coso Junction, CAThu, Nov 23, 3:25 AM PST · 17474 days ago · 3 km deep · 88 km away
12. 2.15km NW of Little Lake, CAThu, Nov 23, 3:10 AM PST · 17474 days ago · 6 km deep · 90 km away
13. 3.17km NW of Little Lake, CAThu, Nov 23, 3:07 AM PST · 17474 days ago · 0 km deep · 90 km away
14. 2.214km ENE of Boron, CAWed, Nov 22, 1:28 PM PST · 17475 days ago · 6 km deep · 100 km away
15. 2.925km S of Bodfish, CAWed, Nov 22, 11:09 AM PST · 17475 days ago · 1 km deep · 8 km away
16. 1.816km NE of Boron, CAWed, Nov 22, 2:01 AM PST · 17476 days ago · 6 km deep · 94 km away
17. 1.613km N of Fillmore, CATue, Nov 21, 7:21 PM PST · 17476 days ago · 19 km deep · 96 km away
18. 2.125km S of Bodfish, CATue, Nov 21, 5:59 AM PST · 17476 days ago · 6 km deep · 5 km away
19. 2.910km W of Tehachapi, CASun, Nov 19, 6:04 AM PST · 17478 days ago · 4 km deep · 21 km away
20. 1.517km NNE of Inyokern, CAFri, Nov 17, 8:33 PM PST · 17480 days ago · 3 km deep · 90 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3343850. Read Sat, Sep 26, 2026, 10:04 PM UTC.