M2.4 earthquake 48km ESE of Trona, CA

Magnitude

2.4 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Fri, Jul 7, 1978, 7:11 AM PDT

UTC

1978-07-07 14:11:28 UTC

Depth

6.0 km (3.7 mi), shallow

Epicenter

35.676° N, 116.854° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.9 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.34

Depth from

Operator assigned

Station coverage gap

244°, poorly surrounded by stations

Stations used

6

• Fort Irwin, CaliforniaPopulation 8,845. Forecast48 kmNNW
• Ridgecrest, CaliforniaPopulation 28,780. Forecast74 kmE
• Victorville, CaliforniaPopulation 122,225. Forecast133 kmNNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast221 kmNE

After

1. 2.326km NNE of Trona, CAThu, Jul 13, 6:56 AM PDT · 17614 days ago · 4 km deep · 47 km away
2. 1.913km ESE of Johannesburg, CAThu, Jul 13, 8:05 PM PDT · 17613 days ago · 6 km deep · 69 km away
3. 3.835km S of Tecopa, CAMon, Jul 17, 7:46 AM PDT · 17610 days ago · 13 km deep · 55 km away
4. 2.218km ENE of Coso Junction, CAThu, Jul 20, 3:56 PM PDT · 17606 days ago · 3 km deep · 94 km away
5. 2.322km ENE of Coso Junction, CAThu, Jul 20, 4:14 PM PDT · 17606 days ago · 3 km deep · 95 km away
6. 3.014km NE of Little Lake, CAThu, Jul 20, 4:25 PM PDT · 17606 days ago · 0 km deep · 92 km away
7. 2.012km ESE of Barstow, CASat, Jul 22, 11:33 PM PDT · 17604 days ago · 5 km deep · 90 km away
8. 2.428km WSW of Tecopa, CASun, Jul 23, 10:56 AM PDT · 17604 days ago · 6 km deep · 32 km away
9. 2.08km ESE of Coso Junction, CASat, Jul 29, 12:53 AM PDT · 17598 days ago · 0 km deep · 99 km away
10. 2.120km NW of Searles Valley, CAThu, Aug 3, 12:16 PM PDT · 17593 days ago · 12 km deep · 68 km away
11. 2.020km W of Johannesburg, CAMon, Aug 14, 7:07 AM PDT · 17582 days ago · 4 km deep · 97 km away
12. 3.38km ESE of Coso Junction, CAMon, Aug 14, 9:09 AM PDT · 17582 days ago · 0 km deep · 99 km away
13. 1.919km ENE of Coso Junction, CAMon, Aug 14, 9:12 AM PDT · 17582 days ago · 0 km deep · 93 km away
14. 1.817km S of Johannesburg, CAMon, Aug 14, 9:41 AM PDT · 17582 days ago · 6 km deep · 89 km away
15. 2.515km NE of Boron, CAMon, Aug 14, 7:24 PM PDT · 17581 days ago · 5 km deep · 90 km away
16. 2.011km ENE of Boron, CAMon, Aug 14, 8:48 PM PDT · 17581 days ago · 18 km deep · 94 km away
17. 2.28km ESE of Coso Junction, CAFri, Aug 18, 6:05 AM PDT · 17578 days ago · 1 km deep · 99 km away
18. 2.38km ESE of Coso Junction, CAFri, Aug 18, 6:06 AM PDT · 17578 days ago · 5 km deep · 99 km away
19. 1.915km ENE of Boron, CAFri, Aug 18, 6:05 PM PDT · 17577 days ago · 6 km deep · 90 km away
20. 2.015km ENE of Boron, CASun, Aug 20, 5:00 PM PDT · 17575 days ago · 6 km deep · 90 km away
21. 1.815km ENE of Boron, CAMon, Aug 21, 2:36 PM PDT · 17574 days ago · 6 km deep · 91 km away
22. 2.315km ENE of Boron, CATue, Aug 22, 7:36 AM PDT · 17574 days ago · 6 km deep · 89 km away
23. 2.015km ENE of Boron, CAThu, Aug 24, 10:37 AM PDT · 17572 days ago · 6 km deep · 90 km away
24. 3.116km ENE of Boron, CAThu, Aug 24, 12:08 PM PDT · 17572 days ago · 2 km deep · 89 km away
25. 1.914km ENE of Boron, CASun, Aug 27, 11:59 PM PDT · 17568 days ago · 6 km deep · 91 km away
26. 2.115km ENE of Boron, CAMon, Aug 28, 1:32 AM PDT · 17568 days ago · 6 km deep · 90 km away
27. 1.916km ENE of Boron, CAMon, Aug 28, 4:50 AM PDT · 17568 days ago · 6 km deep · 89 km away
28. 1.815km ENE of Boron, CATue, Aug 29, 10:06 AM PDT · 17567 days ago · 6 km deep · 90 km away
29. 2.015km ENE of Boron, CATue, Aug 29, 8:55 PM PDT · 17566 days ago · 6 km deep · 90 km away
30. 1.714km ENE of Boron, CAThu, Aug 31, 1:55 AM PDT · 17565 days ago · 6 km deep · 91 km away
31. 2.734km S of Tecopa, CAFri, Sep 1, 6:49 AM PDT · 17564 days ago · 0 km deep · 53 km away
32. 1.915km ENE of Boron, CAFri, Sep 1, 7:05 PM PDT · 17563 days ago · 6 km deep · 90 km away
33. 1.714km ENE of Boron, CAFri, Sep 1, 8:17 PM PDT · 17563 days ago · 6 km deep · 91 km away
34. 1.817km ESE of Little Lake, CAFri, Sep 1, 9:29 PM PDT · 17563 days ago · 3 km deep · 83 km away
35. 2.216km ENE of Boron, CAFri, Sep 1, 10:23 PM PDT · 17563 days ago · 6 km deep · 89 km away
36. 1.915km ENE of Boron, CASat, Sep 2, 12:51 AM PDT · 17563 days ago · 6 km deep · 90 km away
37. 1.937km SSE of Fort Irwin, CATue, Sep 5, 3:04 AM PDT · 17560 days ago · 1 km deep · 86 km away

Before

1. 2.229km E of Barstow, CAWed, Jul 5, 8:43 PM PDT · 17621 days ago · 4 km deep · 88 km away
2. 2.38km NE of Little Lake, CAWed, Jul 5, 8:32 AM PDT · 17622 days ago · 0 km deep · 96 km away
3. 2.110km SSW of Inyokern, CATue, Jul 4, 10:39 AM PDT · 17623 days ago · 3 km deep · 92 km away
4. 2.29km E of Coso Junction, CAMon, Jul 3, 4:03 PM PDT · 17623 days ago · 0 km deep · 98 km away
5. 2.128km SE of Johannesburg, CATue, Jun 27, 4:14 AM PDT · 17630 days ago · 6 km deep · 71 km away
6. 2.523km N of Ridgecrest, CAMon, Jun 26, 1:17 AM PDT · 17631 days ago · 13 km deep · 77 km away
7. 2.020km NNE of Inyokern, CAFri, Jun 23, 11:28 AM PDT · 17634 days ago · 6 km deep · 80 km away
8. 1.723km ENE of Barstow, CAWed, Jun 21, 11:37 PM PDT · 17635 days ago · 6 km deep · 82 km away
9. 2.322km ENE of Barstow, CAWed, Jun 21, 2:56 PM PDT · 17635 days ago · 0 km deep · 81 km away
10. 2.929km WSW of Tecopa, CASat, Jun 17, 3:31 PM PDT · 17639 days ago · 6 km deep · 31 km away
11. 3.412km N of Searles Valley, CAThu, Jun 8, 4:48 PM PDT · 17648 days ago · 1 km deep · 53 km away
12. 2.325km N of Searles Valley, CAWed, Jun 7, 11:44 AM PDT · 17650 days ago · 6 km deep · 64 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3340447. Read Sat, Oct 3, 2026, 8:48 AM UTC.