M1.9 earthquake 12 km WSW of Coleville, California

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Wed, Jul 23, 1986, 1:19 AM PDT

UTC

1986-07-23 08:19:57 UTC

Depth

3.8 km (2.4 mi), shallow

Epicenter

38.527° N, 119.644° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.5 km horizontally, 10.6 km in depth

Depth from

From location

Station coverage gap

215°, poorly surrounded by stations

Stations used

8

• Walker, CaliforniaPopulation 721. Forecast15 kmW
• Gardnerville Ranchos, NevadaPopulation 11,312. Forecast41 kmSSE
• Reno, NevadaPopulation 264,165. Forecast112 kmS
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast513 kmNNW

After

1. 1.64 km NW of Topaz, CaliforniaThu, Jul 24, 8:33 AM PDT · 14679 days ago · -1 km deep · 15 km away
2. 2.021 km E of Mono City, CaliforniaFri, Jul 25, 2:29 PM PDT · 14677 days ago · 10 km deep · 83 km away
3. 1.54 km NW of Topaz, CaliforniaSun, Jul 27, 11:51 PM PDT · 14675 days ago · 7 km deep · 15 km away
4. 1.720 km E of Mono City, CaliforniaWed, Jul 30, 11:57 AM PDT · 14672 days ago · 3 km deep · 83 km away
5. 1.720 km E of Mono City, CaliforniaWed, Jul 30, 12:55 PM PDT · 14672 days ago · 5 km deep · 83 km away
6. 2.34 km WNW of Topaz, CaliforniaThu, Jul 31, 9:28 AM PDT · 14672 days ago · 7 km deep · 14 km away
7. 1.520 km E of Mono City, CaliforniaFri, Aug 1, 12:01 AM PDT · 14671 days ago · 5 km deep · 83 km away
8. 1.620 km E of Mono City, CaliforniaFri, Aug 1, 2:02 AM PDT · 14671 days ago · 1 km deep · 82 km away
9. 1.720 km E of Mono City, CaliforniaFri, Aug 1, 2:23 AM PDT · 14671 days ago · 2 km deep · 83 km away
10. 1.824 km ENE of Mono City, CaliforniaFri, Aug 1, 2:41 AM PDT · 14671 days ago · 4 km deep · 82 km away
11. 1.720 km E of Mono City, CaliforniaFri, Aug 1, 5:23 AM PDT · 14671 days ago · 0 km deep · 82 km away
12. 1.720 km E of Mono City, CaliforniaSat, Aug 2, 9:22 PM PDT · 14669 days ago · 4 km deep · 83 km away
13. 1.88 km WNW of Topaz Lake, NevadaMon, Aug 4, 12:56 AM PDT · 14668 days ago · -2 km deep · 21 km away
14. 1.820 km E of Mono City, CaliforniaThu, Aug 7, 5:48 AM PDT · 14665 days ago · 2 km deep · 84 km away
15. 1.720 km E of Mono City, CaliforniaFri, Aug 8, 10:19 PM PDT · 14663 days ago · 5 km deep · 84 km away
16. 1.920 km E of Mono City, CaliforniaFri, Aug 8, 11:15 PM PDT · 14663 days ago · 6 km deep · 84 km away
17. 2.012 km WNW of Mono City, CaliforniaSat, Aug 9, 2:29 AM PDT · 14663 days ago · 4 km deep · 58 km away
18. 1.621 km E of Mono City, CaliforniaTue, Aug 12, 3:07 PM PDT · 14659 days ago · -1 km deep · 84 km away
19. 1.820 km ENE of Lee Vining, CaliforniaTue, Aug 12, 3:10 PM PDT · 14659 days ago · 3 km deep · 85 km away
20. 2.121 km E of Mono City, CaliforniaTue, Aug 12, 6:39 PM PDT · 14659 days ago · 3 km deep · 84 km away
21. 1.720 km ENE of Lee Vining, CaliforniaTue, Aug 12, 6:52 PM PDT · 14659 days ago · 8 km deep · 86 km away
22. 1.821 km ENE of Lee Vining, CaliforniaTue, Aug 12, 8:28 PM PDT · 14659 days ago · 4 km deep · 85 km away
23. 1.71 km NE of Mesa Vista, CaliforniaThu, Aug 14, 1:05 AM PDT · 14658 days ago · 1 km deep · 35 km away
24. 1.621 km ENE of Lee Vining, CaliforniaThu, Aug 14, 6:22 AM PDT · 14658 days ago · -1 km deep · 85 km away
25. 1.6California-Nevada border regionFri, Aug 15, 5:04 AM PDT · 14657 days ago · 2 km deep · 84 km away
26. 1.91 km NE of Mesa Vista, CaliforniaMon, Aug 18, 8:03 AM PDT · 14654 days ago · -2 km deep · 34 km away
27. 1.721 km E of Mono City, CaliforniaWed, Aug 20, 10:49 PM PDT · 14651 days ago · 6 km deep · 83 km away
28. 2.021 km E of Mono City, CaliforniaWed, Aug 20, 11:50 PM PDT · 14651 days ago · 5 km deep · 83 km away
29. 2.021 km E of Mono City, CaliforniaSun, Aug 24, 3:21 AM PDT · 14648 days ago · -1 km deep · 85 km away
30. 2.02 km SW of Coleville, CaliforniaMon, Aug 25, 8:33 AM PDT · 14647 days ago · 1 km deep · 10 km away
31. 1.834 km NW of Benton, CaliforniaMon, Aug 25, 10:53 AM PDT · 14647 days ago · 5 km deep · 96 km away
32. 2.37 km SW of Topaz Lake, NevadaWed, Aug 27, 2:34 AM PDT · 14645 days ago · 2 km deep · 15 km away
33. 1.634 km NW of Benton, CaliforniaThu, Aug 28, 5:53 PM PDT · 14643 days ago · 5 km deep · 96 km away
34. 1.620 km E of Mono City, CaliforniaFri, Aug 29, 3:20 PM PDT · 14642 days ago · 1 km deep · 83 km away
35. 1.721 km E of Mono City, CaliforniaSat, Aug 30, 1:13 AM PDT · 14642 days ago · 1 km deep · 84 km away
36. 1.533 km NW of Benton, CaliforniaSat, Aug 30, 7:46 PM PDT · 14641 days ago · 1 km deep · 96 km away
37. 1.817 km ENE of Mono City, CaliforniaSun, Aug 31, 1:36 PM PDT · 14640 days ago · 1 km deep · 76 km away
38. 2.118 km ENE of Mono City, CaliforniaSun, Aug 31, 7:04 PM PDT · 14640 days ago · 3 km deep · 76 km away
39. 2.017 km ENE of Mono City, CaliforniaMon, Sep 1, 2:12 AM PDT · 14640 days ago · 2 km deep · 76 km away
40. 1.633 km NW of Benton, CaliforniaTue, Sep 2, 9:58 PM PDT · 14638 days ago · 4 km deep · 96 km away
41. 1.718 km ENE of Mono City, CaliforniaWed, Sep 3, 12:47 PM PDT · 14637 days ago · 4 km deep · 76 km away
42. 1.917 km ENE of Mono City, CaliforniaWed, Sep 3, 12:48 PM PDT · 14637 days ago · 2 km deep · 76 km away
43. 1.917 km ENE of Mono City, CaliforniaWed, Sep 3, 3:12 PM PDT · 14637 days ago · 3 km deep · 76 km away
44. 1.910 km NE of Markleeville, CaliforniaFri, Sep 5, 9:45 AM PDT · 14636 days ago · -1 km deep · 26 km away
45. 1.821 km E of Mono City, CaliforniaFri, Sep 5, 6:44 PM PDT · 14635 days ago · 3 km deep · 84 km away
46. 2.39 km E of Buck Meadows, CaliforniaFri, Sep 5, 11:11 PM PDT · 14635 days ago · 29 km deep · 83 km away
47. 1.720 km E of Mono City, CaliforniaSat, Sep 6, 7:40 PM PDT · 14634 days ago · 5 km deep · 84 km away
48. 1.9California-Nevada border regionWed, Sep 10, 6:34 PM PDT · 14630 days ago · 1 km deep · 76 km away
49. 1.912 km SSE of Bear Valley, CaliforniaThu, Sep 11, 6:58 AM PDT · 14630 days ago · 0 km deep · 37 km away
50. 2.25 km NW of Topaz, CaliforniaSun, Sep 14, 9:48 AM PDT · 14627 days ago · 7 km deep · 15 km away
51. 2.021 km E of Mono City, CaliforniaSun, Sep 14, 7:16 PM PDT · 14626 days ago · 4 km deep · 84 km away
52. 1.621 km E of Mono City, CaliforniaSun, Sep 14, 8:03 PM PDT · 14626 days ago · 3 km deep · 84 km away
53. 2.89 km E of Buck Meadows, CaliforniaMon, Sep 15, 11:47 PM PDT · 14625 days ago · 30 km deep · 83 km away
54. 1.820 km E of Mono City, CaliforniaFri, Sep 19, 9:18 PM PDT · 14621 days ago · 0 km deep · 83 km away

Before

1. 3.15 km WNW of Topaz, CaliforniaWed, Jul 23, 12:46 AM PDT · 14680 days ago · 5 km deep · 14 km away
2. 4.35 km SSW of Topaz Lake, NevadaWed, Jul 23, 12:39 AM PDT · 14680 days ago · 3 km deep · 15 km away
3. 2.20 km SW of Mesa Vista, CaliforniaTue, Jul 22, 12:44 PM PDT · 14680 days ago · 2 km deep · 34 km away
4. 2.420 km E of Mono City, CaliforniaFri, Jul 18, 1:07 AM PDT · 14685 days ago · 9 km deep · 82 km away
5. 2.35 km W of Bridgeport, CaliforniaWed, Jul 16, 12:45 PM PDT · 14686 days ago · 10 km deep · 43 km away
6. 2.128 km E of Mono City, CaliforniaFri, Jul 11, 8:03 PM PDT · 14691 days ago · 8 km deep · 87 km away
7. 2.74 km WSW of Topaz Lake, NevadaFri, Jul 11, 3:13 PM PDT · 14691 days ago · 6 km deep · 18 km away
8. 1.729 km NW of Benton, CaliforniaFri, Jul 11, 12:16 AM PDT · 14692 days ago · 3 km deep · 99 km away
9. 2.030 km NW of Benton, CaliforniaThu, Jul 10, 5:07 AM PDT · 14693 days ago · -2 km deep · 99 km away
10. 2.1California-Nevada border regionWed, Jul 9, 1:43 AM PDT · 14694 days ago · -1 km deep · 18 km away
11. 2.39 km E of Buck Meadows, CaliforniaFri, Jul 4, 11:30 PM PDT · 14698 days ago · 30 km deep · 83 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc76948. Read Thu, Oct 1, 2026, 5:47 AM UTC.