M1.7 earthquake 35km SE of Fort Irwin, CA

Magnitude

1.7 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Mon, Sep 5, 1983, 11:08 AM PDT

UTC

1983-09-05 18:08:12 UTC

Depth

2.8 km (1.8 mi), shallow

Epicenter

35.003° N, 116.466° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.7 km horizontally, 1.4 km in depth

Magnitude uncertainty

±0.18

Depth from

From location

Station coverage gap

88°

Stations used

9

• Yermo, CaliforniaPopulation 623. Forecast34 kmENE
• Barstow, CaliforniaPopulation 23,692. Forecast52 kmENE
• Victorville, CaliforniaPopulation 122,225. Forecast92 kmNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast194 kmENE

After

1. 2.216km N of Joshua Tree, CATue, Sep 6, 4:58 AM PDT · 15732 days ago · 3 km deep · 81 km away
2. 2.28km ESE of Barstow, CAWed, Sep 7, 1:22 PM PDT · 15730 days ago · 9 km deep · 46 km away
3. 1.85km SE of Big Bear Lake, CASat, Sep 10, 12:32 AM PDT · 15728 days ago · 2 km deep · 96 km away
4. 2.633km S of Tecopa, CASat, Sep 10, 5:45 AM PDT · 15728 days ago · 5 km deep · 64 km away
5. 2.037km SW of Ludlow, CASat, Sep 10, 6:04 PM PDT · 15727 days ago · 5 km deep · 53 km away
6. 1.617km NW of Morongo Valley, CAMon, Sep 12, 4:55 AM PDT · 15726 days ago · 7 km deep · 100 km away
7. 1.510km NNE of Barstow, CAMon, Sep 12, 6:14 AM PDT · 15726 days ago · 6 km deep · 47 km away
8. 3.332km W of Fort Irwin, CAMon, Sep 12, 2:33 PM PDT · 15725 days ago · 6 km deep · 57 km away
9. 2.338km SSE of Fort Irwin, CAWed, Sep 14, 1:41 AM PDT · 15724 days ago · 5 km deep · 10 km away
10. 2.022km NNW of Yucca Valley, CAThu, Sep 15, 6:56 AM PDT · 15723 days ago · 5 km deep · 77 km away
11. 2.15km NW of Big Bear City, CASun, Sep 18, 5:43 AM PDT · 15720 days ago · 4 km deep · 87 km away
12. 2.311km NW of Twentynine Palms, CAMon, Sep 19, 2:50 PM PDT · 15718 days ago · 6 km deep · 93 km away
13. 2.03km SSE of Big Bear City, CAMon, Sep 19, 8:51 PM PDT · 15718 days ago · 8 km deep · 92 km away
14. 2.510km NE of Running Springs, CATue, Sep 20, 7:20 AM PDT · 15718 days ago · 7 km deep · 97 km away
15. 1.913km NE of Lucerne Valley, CAWed, Sep 21, 5:56 PM PDT · 15716 days ago · 1 km deep · 65 km away
16. 2.16km WNW of Fort Irwin, CATue, Sep 27, 12:35 AM PDT · 15711 days ago · 6 km deep · 40 km away
17. 1.915km N of Yucca Valley, CAMon, Oct 3, 8:31 PM PDT · 15704 days ago · 5 km deep · 84 km away
18. 2.825km NNW of Yucca Valley, CATue, Oct 4, 10:01 AM PDT · 15703 days ago · 1 km deep · 75 km away
19. 2.138km ENE of Lucerne Valley, CAWed, Oct 5, 10:07 PM PDT · 15702 days ago · -1 km deep · 54 km away
20. 1.616km ESE of Big Bear City, CAThu, Oct 6, 5:17 AM PDT · 15702 days ago · 4 km deep · 88 km away
21. 1.97km N of Big Bear City, CAThu, Oct 6, 7:22 PM PDT · 15701 days ago · 5 km deep · 83 km away
22. 2.026km NNW of Yucca Valley, CAFri, Oct 7, 1:33 AM PDT · 15701 days ago · 0 km deep · 74 km away
23. 1.618km NNE of Joshua Tree, CASun, Oct 9, 12:32 AM PDT · 15699 days ago · 11 km deep · 83 km away
24. 2.025km NNW of Yucca Valley, CASun, Oct 9, 2:31 PM PDT · 15698 days ago · 1 km deep · 75 km away
25. 2.14km SSE of Lucerne Valley, CAThu, Oct 13, 11:35 AM PDT · 15694 days ago · 2 km deep · 79 km away
26. 1.84km WSW of Joshua Tree, CAFri, Oct 14, 2:59 AM PDT · 15694 days ago · 5 km deep · 98 km away
27. 2.12km WNW of Big Bear City, CAThu, Oct 20, 3:49 AM PDT · 15688 days ago · 4 km deep · 89 km away
28. 1.810km WNW of Twentynine Palms, CAFri, Oct 21, 4:24 AM PDT · 15687 days ago · 4 km deep · 96 km away
29. 2.018km ENE of Big Bear City, CAFri, Oct 21, 5:11 PM PDT · 15686 days ago · 3 km deep · 77 km away
30. 2.612km NNE of Lake Arrowhead, CAMon, Oct 24, 1:14 AM PDT · 15684 days ago · 2 km deep · 95 km away
31. 2.412km NNE of Lake Arrowhead, CAMon, Oct 24, 3:39 AM PDT · 15684 days ago · 3 km deep · 95 km away
32. 1.712km NNE of Lake Arrowhead, CAMon, Oct 24, 5:01 AM PDT · 15684 days ago · 3 km deep · 95 km away
33. 2.811km E of Barstow, CAMon, Oct 24, 12:37 PM PDT · 15683 days ago · 3 km deep · 42 km away
34. 3.012km NNE of Lake Arrowhead, CATue, Oct 25, 5:30 PM PDT · 15682 days ago · 2 km deep · 95 km away
35. 1.711km NNE of Lake Arrowhead, CATue, Oct 25, 5:55 PM PDT · 15682 days ago · 7 km deep · 96 km away
36. 2.114km NE of Lucerne Valley, CAWed, Oct 26, 9:13 PM PDT · 15681 days ago · -1 km deep · 63 km away
37. 1.711km NNE of Lake Arrowhead, CAThu, Oct 27, 4:28 AM PDT · 15681 days ago · 8 km deep · 96 km away
38. 2.03km SE of Big Bear City, CASat, Oct 29, 11:46 PM PDT · 15678 days ago · 10 km deep · 91 km away
39. 1.88km WNW of Lucerne Valley, CASun, Oct 30, 12:07 AM PDT · 15678 days ago · 1 km deep · 80 km away
40. 1.98km WNW of Lucerne Valley, CAMon, Oct 31, 10:40 PM PST · 15676 days ago · 3 km deep · 79 km away
41. 2.911km NNE of Lake Arrowhead, CAFri, Nov 4, 1:02 AM PST · 15673 days ago · 1 km deep · 96 km away
42. 1.811km NNE of Lake Arrowhead, CAFri, Nov 4, 1:22 AM PST · 15673 days ago · 4 km deep · 96 km away
43. 1.512km NNE of Lake Arrowhead, CAFri, Nov 4, 2:38 AM PST · 15673 days ago · 7 km deep · 95 km away
44. 2.011km NNE of Lake Arrowhead, CAFri, Nov 4, 7:12 AM PST · 15672 days ago · 6 km deep · 96 km away

Before

1. 1.616km NNE of Barstow, CASun, Sep 4, 9:56 PM PDT · 15733 days ago · 11 km deep · 47 km away
2. 2.115km N of Yucca Valley, CAThu, Sep 1, 3:43 PM PDT · 15736 days ago · 5 km deep · 84 km away
3. 1.825km SSE of Trona, CASun, Aug 28, 6:49 AM PDT · 15741 days ago · 0 km deep · 94 km away
4. 2.17km SSE of Lucerne Valley, CASun, Aug 28, 12:53 AM PDT · 15741 days ago · -1 km deep · 81 km away
5. 1.918km NNW of Morongo Valley, CAWed, Aug 24, 4:40 AM PDT · 15745 days ago · 9 km deep · 90 km away
6. 2.122km NNW of Yucca Valley, CASun, Aug 21, 6:12 PM PDT · 15747 days ago · 0 km deep · 78 km away
7. 2.029km E of Barstow, CAFri, Aug 19, 7:21 PM PDT · 15749 days ago · 5 km deep · 23 km away
8. 1.930km E of Barstow, CAFri, Aug 19, 7:17 PM PDT · 15749 days ago · 5 km deep · 23 km away
9. 1.730km E of Barstow, CAFri, Aug 19, 7:12 PM PDT · 15749 days ago · 5 km deep · 22 km away
10. 2.010km NNW of Big Bear Lake, CAFri, Aug 19, 11:14 AM PDT · 15749 days ago · 5 km deep · 87 km away
11. 2.035km NW of Baker, CAThu, Aug 18, 6:48 PM PDT · 15750 days ago · 5 km deep · 57 km away
12. 2.08km SSE of Big Bear Lake, CAWed, Aug 17, 5:46 AM PDT · 15752 days ago · 7 km deep · 98 km away
13. 2.336km WSW of Tecopa, CAMon, Aug 15, 2:20 AM PDT · 15754 days ago · 5 km deep · 87 km away
14. 1.88km ENE of Barstow, CAFri, Aug 12, 8:42 AM PDT · 15756 days ago · 2 km deep · 44 km away
15. 2.28km E of Barstow, CATue, Aug 9, 10:36 AM PDT · 15759 days ago · 5 km deep · 44 km away
16. 2.79km E of Barstow, CAMon, Aug 8, 12:35 PM PDT · 15760 days ago · 4 km deep · 43 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci21321. Read Fri, Oct 2, 2026, 2:10 AM UTC.