M1.8 earthquake 17km NW of Tehachapi, CA

Magnitude

1.8 (mh), micro

Local time

Thu, Aug 17, 1978, 7:24 PM PDT

UTC

1978-08-18 02:24:47 UTC

Depth

3.3 km (2.1 mi), shallow

Epicenter

35.254° N, 118.562° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.4 km horizontally, 1.1 km in depth

Depth from

From location

Station coverage gap

258°, poorly surrounded by stations

Stations used

7

• Bear Valley Springs, CaliforniaPopulation 5,172. Forecast12 kmNNE
• Tehachapi, CaliforniaPopulation 13,021. Forecast17 kmNW
• Bakersfield, CaliforniaPopulation 373,640. Forecast44 kmESE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast137 kmNNW

After

1. 2.05km SW of Mojave, CAFri, Aug 18, 1:17 AM PDT · 17574 days ago · 4 km deep · 42 km away
2. 1.915km ENE of Boron, CAFri, Aug 18, 6:05 PM PDT · 17573 days ago · 6 km deep · 98 km away
3. 2.09km SW of Agua Dulce, CASat, Aug 19, 7:59 AM PDT · 17573 days ago · 11 km deep · 93 km away
4. 1.816km NW of Grapevine, CASat, Aug 19, 2:16 PM PDT · 17573 days ago · 12 km deep · 50 km away
5. 2.015km ENE of Boron, CASun, Aug 20, 5:00 PM PDT · 17571 days ago · 6 km deep · 99 km away
6. 1.719km NW of Grapevine, CAMon, Aug 21, 1:42 AM PDT · 17571 days ago · 14 km deep · 50 km away
7. 1.815km ENE of Boron, CAMon, Aug 21, 2:36 PM PDT · 17571 days ago · 6 km deep · 98 km away
8. 2.315km ENE of Boron, CATue, Aug 22, 7:36 AM PDT · 17570 days ago · 6 km deep · 98 km away
9. 2.015km ENE of Boron, CAThu, Aug 24, 10:37 AM PDT · 17568 days ago · 6 km deep · 97 km away
10. 3.116km ENE of Boron, CAThu, Aug 24, 12:08 PM PDT · 17568 days ago · 2 km deep · 98 km away
11. 1.513km SSE of Arvin, CASat, Aug 26, 1:00 AM PDT · 17566 days ago · 12 km deep · 24 km away
12. 1.914km ENE of Boron, CASun, Aug 27, 11:59 PM PDT · 17564 days ago · 6 km deep · 98 km away
13. 2.115km ENE of Boron, CAMon, Aug 28, 1:32 AM PDT · 17564 days ago · 6 km deep · 98 km away
14. 1.916km ENE of Boron, CAMon, Aug 28, 4:50 AM PDT · 17564 days ago · 6 km deep · 99 km away
15. 2.124km NNW of Tehachapi, CAMon, Aug 28, 11:00 PM PDT · 17563 days ago · 3 km deep · 8 km away
16. 2.123km ENE of Arvin, CATue, Aug 29, 4:18 AM PDT · 17563 days ago · 6 km deep · 8 km away
17. 1.815km ENE of Boron, CATue, Aug 29, 10:06 AM PDT · 17563 days ago · 6 km deep · 98 km away
18. 2.616km N of Pine Mountain Club, CATue, Aug 29, 2:58 PM PDT · 17563 days ago · 3 km deep · 62 km away
19. 2.015km ENE of Boron, CATue, Aug 29, 8:55 PM PDT · 17562 days ago · 6 km deep · 99 km away
20. 1.714km ENE of Boron, CAThu, Aug 31, 1:55 AM PDT · 17561 days ago · 6 km deep · 98 km away
21. 1.611km NNW of Grapevine, CAThu, Aug 31, 12:34 PM PDT · 17561 days ago · 6 km deep · 44 km away
22. 1.915km ENE of Boron, CAFri, Sep 1, 7:05 PM PDT · 17559 days ago · 6 km deep · 99 km away
23. 1.714km ENE of Boron, CAFri, Sep 1, 8:17 PM PDT · 17559 days ago · 6 km deep · 98 km away
24. 2.216km ENE of Boron, CAFri, Sep 1, 10:23 PM PDT · 17559 days ago · 6 km deep · 98 km away
25. 1.915km ENE of Boron, CASat, Sep 2, 12:51 AM PDT · 17559 days ago · 6 km deep · 98 km away
26. 2.15km ESE of Bodfish, CASat, Sep 2, 7:29 PM PDT · 17558 days ago · 5 km deep · 38 km away
27. 2.89km SE of Lake Isabella, CAMon, Sep 4, 2:05 PM PDT · 17557 days ago · 3 km deep · 38 km away
28. 1.88km SE of Lake Isabella, CAMon, Sep 4, 4:22 PM PDT · 17556 days ago · 6 km deep · 39 km away
29. 1.717km SSW of Lamont, CATue, Sep 5, 10:02 AM PDT · 17556 days ago · 9 km deep · 41 km away
30. 1.615km N of Grapevine, CAThu, Sep 7, 7:19 PM PDT · 17553 days ago · 10 km deep · 39 km away
31. 2.316km ENE of Boron, CAFri, Sep 8, 2:00 AM PDT · 17553 days ago · 6 km deep · 98 km away
32. 2.014km ENE of Boron, CAFri, Sep 8, 2:47 AM PDT · 17553 days ago · 6 km deep · 97 km away
33. 1.828km E of Kernville, CAFri, Sep 8, 4:22 AM PDT · 17553 days ago · 3 km deep · 68 km away
34. 2.018km NNE of Boron, CASat, Sep 9, 7:52 PM PDT · 17551 days ago · 6 km deep · 92 km away
35. 1.99km E of Santa Clarita, CAMon, Sep 11, 11:26 AM PDT · 17550 days ago · 11 km deep · 94 km away
36. 1.69km ENE of Santa Clarita, CAMon, Sep 11, 9:01 PM PDT · 17549 days ago · 5 km deep · 91 km away
37. 1.610km ESE of Santa Clarita, CATue, Sep 12, 9:46 PM PDT · 17548 days ago · 2 km deep · 99 km away
38. 1.920km NW of Grapevine, CAWed, Sep 13, 12:13 AM PDT · 17548 days ago · 0 km deep · 50 km away
39. 1.622km NE of Arvin, CAThu, Sep 14, 1:57 PM PDT · 17547 days ago · 1 km deep · 16 km away
40. 2.38km ESE of Bodfish, CAFri, Sep 15, 3:31 AM PDT · 17546 days ago · 6 km deep · 38 km away
41. 1.56km W of Grapevine, CAMon, Sep 18, 3:28 PM PDT · 17543 days ago · 11 km deep · 52 km away
42. 2.09km N of Mojave, CASun, Sep 24, 12:49 AM PDT · 17537 days ago · 5 km deep · 36 km away
43. 2.57km ESE of Bodfish, CAMon, Sep 25, 6:13 PM PDT · 17535 days ago · 5 km deep · 38 km away
44. 2.58km SE of Lake Isabella, CAMon, Sep 25, 6:26 PM PDT · 17535 days ago · 5 km deep · 38 km away
45. 1.87km ESE of Bodfish, CAMon, Sep 25, 6:39 PM PDT · 17535 days ago · 5 km deep · 37 km away
46. 2.68km SE of Lake Isabella, CAMon, Sep 25, 8:41 PM PDT · 17535 days ago · 4 km deep · 38 km away
47. 1.67km ESE of Bodfish, CAMon, Sep 25, 11:17 PM PDT · 17535 days ago · 7 km deep · 38 km away
48. 2.022km ESE of Bodfish, CATue, Sep 26, 4:23 AM PDT · 17535 days ago · 6 km deep · 35 km away
49. 1.510km SSE of Inyokern, CATue, Sep 26, 11:38 AM PDT · 17535 days ago · 6 km deep · 79 km away
50. 1.912km WNW of Tehachapi, CATue, Sep 26, 3:19 PM PDT · 17535 days ago · 5 km deep · 8 km away
51. 1.69km E of Santa Clarita, CAWed, Sep 27, 7:46 AM PDT · 17534 days ago · 10 km deep · 93 km away
52. 2.29km E of Santa Clarita, CAWed, Sep 27, 7:49 AM PDT · 17534 days ago · 6 km deep · 93 km away
53. 1.89km ESE of Lake Isabella, CAWed, Sep 27, 9:09 AM PDT · 17534 days ago · 1 km deep · 40 km away
54. 2.130km ESE of Lake Isabella, CAWed, Sep 27, 12:16 PM PDT · 17534 days ago · 6 km deep · 45 km away
55. 2.58km ESE of Bodfish, CAMon, Oct 2, 5:25 PM PDT · 17528 days ago · 7 km deep · 37 km away
56. 2.312km ESE of Maricopa, CAWed, Oct 4, 9:08 PM PDT · 17526 days ago · 5 km deep · 70 km away
57. 1.921km NNW of Tehachapi, CAThu, Oct 5, 10:36 PM PDT · 17525 days ago · 3 km deep · 6 km away
58. 2.015km ENE of Boron, CAThu, Oct 5, 11:42 PM PDT · 17525 days ago · 8 km deep · 98 km away
59. 2.315km W of Tehachapi, CAFri, Oct 6, 3:02 PM PDT · 17525 days ago · 6 km deep · 15 km away
60. 2.31km SW of Rosedale, CATue, Oct 10, 12:11 AM PDT · 17521 days ago · 6 km deep · 55 km away

The first 60 of 70.

Before

1. 2.26km NW of Boron, CAWed, Aug 16, 12:04 PM PDT · 17576 days ago · 5 km deep · 83 km away
2. 2.011km ENE of Boron, CAMon, Aug 14, 8:48 PM PDT · 17577 days ago · 18 km deep · 95 km away
3. 2.515km NE of Boron, CAMon, Aug 14, 7:24 PM PDT · 17577 days ago · 5 km deep · 97 km away
4. 3.123km SW of Lamont, CAMon, Aug 14, 6:23 PM PDT · 17577 days ago · 2 km deep · 50 km away
5. 1.87km ESE of Santa Clarita, CAMon, Aug 14, 3:01 PM PDT · 17578 days ago · 8 km deep · 95 km away
6. 1.86km E of Santa Clarita, CAMon, Aug 14, 3:00 PM PDT · 17578 days ago · 9 km deep · 94 km away
7. 2.27km E of Santa Clarita, CAMon, Aug 14, 2:59 PM PDT · 17578 days ago · 8 km deep · 95 km away
8. 1.817km S of Johannesburg, CAMon, Aug 14, 9:41 AM PDT · 17578 days ago · 6 km deep · 82 km away
9. 2.020km W of Johannesburg, CAMon, Aug 14, 7:07 AM PDT · 17578 days ago · 4 km deep · 66 km away
10. 2.016km WSW of Little Lake, CAMon, Aug 14, 2:59 AM PDT · 17578 days ago · 0 km deep · 83 km away
11. 2.616km WSW of Little Lake, CAMon, Aug 14, 2:55 AM PDT · 17578 days ago · 0 km deep · 83 km away
12. 1.67km SW of Grapevine, CASun, Aug 13, 11:02 PM PDT · 17578 days ago · 11 km deep · 55 km away
13. 2.07km ESE of Santa Clarita, CASun, Aug 13, 1:52 AM PDT · 17579 days ago · 6 km deep · 95 km away
14. 1.58km NE of Santa Clarita, CASat, Aug 12, 7:45 PM PDT · 17579 days ago · 13 km deep · 89 km away
15. 1.814km SW of Arvin, CASun, Aug 6, 10:43 AM PDT · 17586 days ago · 6 km deep · 37 km away
16. 2.415km ESE of Arvin, CASat, Aug 5, 7:59 PM PDT · 17586 days ago · 0 km deep · 17 km away
17. 1.524km SSW of Bodfish, CASat, Aug 5, 6:27 PM PDT · 17586 days ago · 2 km deep · 15 km away
18. 2.310km WSW of Grapevine, CASat, Aug 5, 4:56 PM PDT · 17586 days ago · 14 km deep · 57 km away
19. 1.812km SSW of Valencia, CAFri, Aug 4, 1:30 PM PDT · 17588 days ago · 14 km deep · 100 km away
20. 3.025km E of Maricopa, CAMon, Jul 31, 8:02 AM PDT · 17592 days ago · 0 km deep · 55 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3341134. Read Tue, Sep 29, 2026, 10:15 AM UTC.