M2.3 earthquake 26km NNE of Trona, CA

Magnitude

2.3 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Thu, Jul 13, 1978, 6:56 AM PDT

UTC

1978-07-13 13:56:29 UTC

Depth

3.6 km (2.3 mi), shallow

Epicenter

35.963° N, 117.234° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 6.0 km horizontally, 8.9 km in depth

Magnitude uncertainty

±0.30

Depth from

From location

Station coverage gap

257°, poorly surrounded by stations

Stations used

9

• Searles Valley, CaliforniaPopulation 1,739. Forecast27 kmNE
• Ridgecrest, CaliforniaPopulation 28,780. Forecast55 kmNE
• Victorville, CaliforniaPopulation 122,225. Forecast159 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast232 kmNNE

After

1. 1.913km ESE of Johannesburg, CAThu, Jul 13, 8:05 PM PDT · 17613 days ago · 6 km deep · 73 km away
2. 2.812km W of Coso Junction, CAFri, Jul 14, 5:58 AM PDT · 17613 days ago · 6 km deep · 76 km away
3. 2.313km SSW of Olancha, CAFri, Jul 14, 2:05 PM PDT · 17613 days ago · 6 km deep · 78 km away
4. 2.08km WNW of Olancha, CASat, Jul 15, 9:57 AM PDT · 17612 days ago · 0 km deep · 86 km away
5. 3.835km S of Tecopa, CAMon, Jul 17, 7:46 AM PDT · 17610 days ago · 13 km deep · 99 km away
6. 2.218km ENE of Coso Junction, CAThu, Jul 20, 3:56 PM PDT · 17607 days ago · 3 km deep · 49 km away
7. 2.322km ENE of Coso Junction, CAThu, Jul 20, 4:14 PM PDT · 17607 days ago · 3 km deep · 50 km away
8. 3.014km NE of Little Lake, CAThu, Jul 20, 4:25 PM PDT · 17607 days ago · 0 km deep · 50 km away
9. 2.428km WSW of Tecopa, CASun, Jul 23, 10:56 AM PDT · 17604 days ago · 6 km deep · 68 km away
10. 1.77km SSW of Coso Junction, CAWed, Jul 26, 7:36 PM PDT · 17601 days ago · 6 km deep · 66 km away
11. 2.08km ESE of Coso Junction, CASat, Jul 29, 12:53 AM PDT · 17598 days ago · 0 km deep · 58 km away
12. 1.612km WSW of Olancha, CATue, Aug 1, 5:36 AM PDT · 17595 days ago · 1 km deep · 87 km away
13. 2.120km NW of Searles Valley, CAThu, Aug 3, 12:16 PM PDT · 17593 days ago · 12 km deep · 31 km away
14. 2.328km WSW of Olancha, CAWed, Aug 9, 12:38 AM PDT · 17587 days ago · 6 km deep · 98 km away
15. 2.616km WSW of Little Lake, CAMon, Aug 14, 2:55 AM PDT · 17582 days ago · 0 km deep · 76 km away
16. 2.016km WSW of Little Lake, CAMon, Aug 14, 2:59 AM PDT · 17582 days ago · 0 km deep · 76 km away
17. 2.020km W of Johannesburg, CAMon, Aug 14, 7:07 AM PDT · 17582 days ago · 4 km deep · 88 km away
18. 1.69km NE of Coso Junction, CAMon, Aug 14, 8:59 AM PDT · 17582 days ago · 6 km deep · 59 km away
19. 3.38km ESE of Coso Junction, CAMon, Aug 14, 9:09 AM PDT · 17582 days ago · 0 km deep · 58 km away
20. 1.919km ENE of Coso Junction, CAMon, Aug 14, 9:12 AM PDT · 17582 days ago · 0 km deep · 49 km away
21. 2.08km NE of Coso Junction, CAMon, Aug 14, 9:13 AM PDT · 17582 days ago · 0 km deep · 59 km away
22. 2.51km ENE of Coso Junction, CAMon, Aug 14, 9:17 AM PDT · 17582 days ago · 0 km deep · 64 km away
23. 1.98km NE of Coso Junction, CAMon, Aug 14, 9:20 AM PDT · 17582 days ago · 1 km deep · 60 km away
24. 2.20km NW of Coso Junction, CAMon, Aug 14, 9:26 AM PDT · 17582 days ago · 0 km deep · 65 km away
25. 1.817km S of Johannesburg, CAMon, Aug 14, 9:41 AM PDT · 17582 days ago · 6 km deep · 91 km away
26. 1.68km ENE of Coso Junction, CAMon, Aug 14, 10:26 AM PDT · 17582 days ago · 1 km deep · 58 km away
27. 2.28km ESE of Coso Junction, CAFri, Aug 18, 6:05 AM PDT · 17578 days ago · 1 km deep · 58 km away
28. 2.38km ESE of Coso Junction, CAFri, Aug 18, 6:06 AM PDT · 17578 days ago · 5 km deep · 57 km away
29. 2.110km SE of Olancha, CAFri, Aug 18, 8:32 AM PDT · 17578 days ago · 5 km deep · 68 km away
30. 2.525km WSW of Olancha, CAMon, Aug 21, 2:53 PM PDT · 17575 days ago · 6 km deep · 96 km away
31. 2.734km S of Tecopa, CAFri, Sep 1, 6:49 AM PDT · 17564 days ago · 0 km deep · 97 km away
32. 1.817km ESE of Little Lake, CAFri, Sep 1, 9:29 PM PDT · 17563 days ago · 3 km deep · 47 km away
33. 1.828km E of Kernville, CAFri, Sep 8, 4:22 AM PDT · 17557 days ago · 3 km deep · 83 km away
34. 2.018km NNE of Boron, CASat, Sep 9, 7:52 PM PDT · 17555 days ago · 6 km deep · 95 km away

Before

1. 3.020km WSW of Little Lake, CASun, Jul 9, 7:55 PM PDT · 17617 days ago · 6 km deep · 80 km away
2. 2.448km ESE of Trona, CAFri, Jul 7, 7:11 AM PDT · 17620 days ago · 6 km deep · 47 km away
3. 2.320km SW of Little Lake, CAThu, Jul 6, 4:43 PM PDT · 17621 days ago · 6 km deep · 75 km away
4. 2.38km NE of Little Lake, CAWed, Jul 5, 8:32 AM PDT · 17622 days ago · 0 km deep · 55 km away
5. 2.26km WNW of Little Lake, CATue, Jul 4, 12:46 PM PDT · 17623 days ago · 0 km deep · 66 km away
6. 2.110km SSW of Inyokern, CATue, Jul 4, 10:39 AM PDT · 17623 days ago · 3 km deep · 72 km away
7. 2.29km E of Coso Junction, CAMon, Jul 3, 4:03 PM PDT · 17624 days ago · 0 km deep · 56 km away
8. 1.716km SW of Little Lake, CASun, Jul 2, 9:02 AM PDT · 17625 days ago · 6 km deep · 73 km away
9. 2.512km NNE of Olancha, CAThu, Jun 29, 7:47 PM PDT · 17628 days ago · 6 km deep · 80 km away
10. 2.128km SE of Johannesburg, CATue, Jun 27, 4:14 AM PDT · 17630 days ago · 6 km deep · 84 km away
11. 2.523km N of Ridgecrest, CAMon, Jun 26, 1:17 AM PDT · 17631 days ago · 13 km deep · 43 km away
12. 2.020km NNE of Inyokern, CAFri, Jun 23, 11:28 AM PDT · 17634 days ago · 6 km deep · 47 km away
13. 2.929km WSW of Tecopa, CASat, Jun 17, 3:31 PM PDT · 17640 days ago · 6 km deep · 69 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3340701. Read Sat, Oct 3, 2026, 2:18 PM UTC.