M2.1 earthquake 8 km WSW of Topaz, California

Magnitude

2.1 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, Sep 29, 1990, 9:53 PM PDT

UTC

1990-09-30 04:53:08 UTC

Depth

3.8 km (2.4 mi), shallow

Epicenter

38.584° N, 119.609° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 5.9 km horizontally, 36.5 km in depth

Magnitude uncertainty

±0.03

Depth from

From location

Station coverage gap

249°, poorly surrounded by stations

Stations used

11

• Walker, CaliforniaPopulation 721. Forecast14 kmWNW
• Gardnerville Ranchos, NevadaPopulation 11,312. Forecast36 kmSSE
• Reno, NevadaPopulation 264,165. Forecast107 kmS
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast519 kmNNW

After

1. 2.74 km NW of Mesa Vista, CaliforniaFri, Oct 12, 2:53 AM PDT · 13142 days ago · 2 km deep · 34 km away
2. 2.39 km ESE of Mesa Vista, CaliforniaFri, Oct 12, 2:09 PM PDT · 13141 days ago · -1 km deep · 23 km away
3. 1.913 km NW of Bridgeport, CaliforniaSun, Oct 14, 9:26 PM PDT · 13139 days ago · 3 km deep · 36 km away
4. 2.514 km NNW of Bridgeport, CaliforniaSat, Oct 20, 4:21 PM PDT · 13133 days ago · 3 km deep · 35 km away
5. 2.12 km NE of Mono City, CaliforniaTue, Oct 23, 11:15 PM PDT · 13130 days ago · 10 km deep · 73 km away
6. 5.83 km NE of Mono City, CaliforniaTue, Oct 23, 11:15 PM PDT · 13130 days ago · 11 km deep · 72 km away
7. 3.92 km NE of Mono City, CaliforniaTue, Oct 23, 11:19 PM PDT · 13130 days ago · 9 km deep · 72 km away
8. 2.816 km W of Mono City, CaliforniaTue, Oct 23, 11:21 PM PDT · 13130 days ago · -1 km deep · 64 km away
9. 1.61 km NE of Mono City, CaliforniaTue, Oct 23, 11:22 PM PDT · 13130 days ago · 10 km deep · 72 km away
10. 2.62 km ENE of Mono City, CaliforniaTue, Oct 23, 11:23 PM PDT · 13130 days ago · 11 km deep · 74 km away
11. 1.81 km NE of Mono City, CaliforniaTue, Oct 23, 11:25 PM PDT · 13130 days ago · -1 km deep · 73 km away
12. 3.01 km NE of Mono City, CaliforniaTue, Oct 23, 11:27 PM PDT · 13130 days ago · 10 km deep · 73 km away
13. 2.31 km ENE of Mono City, CaliforniaTue, Oct 23, 11:28 PM PDT · 13130 days ago · 10 km deep · 73 km away
14. 2.42 km NNE of Mono City, CaliforniaTue, Oct 23, 11:32 PM PDT · 13130 days ago · 11 km deep · 71 km away
15. 2.10 km SE of Mono City, CaliforniaTue, Oct 23, 11:34 PM PDT · 13130 days ago · 8 km deep · 73 km away
16. 2.22 km ENE of Mono City, CaliforniaTue, Oct 23, 11:36 PM PDT · 13130 days ago · 10 km deep · 73 km away
17. 1.60 km SSE of Mono City, CaliforniaTue, Oct 23, 11:37 PM PDT · 13130 days ago · 8 km deep · 74 km away
18. 2.01 km ESE of Mono City, CaliforniaTue, Oct 23, 11:38 PM PDT · 13130 days ago · 10 km deep · 74 km away
19. 2.30 km SE of Mono City, CaliforniaTue, Oct 23, 11:39 PM PDT · 13130 days ago · 9 km deep · 74 km away
20. 1.72 km E of Mono City, CaliforniaTue, Oct 23, 11:44 PM PDT · 13130 days ago · 11 km deep · 74 km away
21. 1.51 km SSW of Mono City, CaliforniaTue, Oct 23, 11:47 PM PDT · 13130 days ago · 8 km deep · 73 km away
22. 1.91 km NE of Mono City, CaliforniaTue, Oct 23, 11:54 PM PDT · 13130 days ago · 11 km deep · 73 km away
23. 3.01 km ENE of Mono City, CaliforniaTue, Oct 23, 11:58 PM PDT · 13130 days ago · 9 km deep · 73 km away
24. 2.10 km NE of Mono City, CaliforniaWed, Oct 24, 12:02 AM PDT · 13130 days ago · 9 km deep · 73 km away
25. 1.60 km SW of Mono City, CaliforniaWed, Oct 24, 12:08 AM PDT · 13130 days ago · 8 km deep · 73 km away
26. 1.91 km NE of Mono City, CaliforniaWed, Oct 24, 12:09 AM PDT · 13130 days ago · 11 km deep · 72 km away
27. 2.11 km NNE of Mono City, CaliforniaWed, Oct 24, 12:14 AM PDT · 13130 days ago · 9 km deep · 71 km away
28. 1.73 km NNE of Mono City, CaliforniaWed, Oct 24, 12:26 AM PDT · 13130 days ago · 13 km deep · 71 km away
29. 2.71 km NE of Mono City, CaliforniaWed, Oct 24, 12:45 AM PDT · 13130 days ago · 10 km deep · 72 km away
30. 2.81 km NE of Mono City, CaliforniaWed, Oct 24, 12:49 AM PDT · 13130 days ago · 11 km deep · 72 km away
31. 1.70 km ESE of Mono City, CaliforniaWed, Oct 24, 1:36 AM PDT · 13130 days ago · 9 km deep · 73 km away
32. 2.91 km ENE of Mono City, CaliforniaWed, Oct 24, 1:44 AM PDT · 13130 days ago · 9 km deep · 73 km away
33. 1.6California-Nevada border regionWed, Oct 24, 3:38 AM PDT · 13130 days ago · 10 km deep · 73 km away
34. 2.01 km ENE of Mono City, CaliforniaWed, Oct 24, 3:58 AM PDT · 13130 days ago · 9 km deep · 73 km away
35. 1.72 km E of Mono City, CaliforniaWed, Oct 24, 4:10 AM PDT · 13130 days ago · 10 km deep · 74 km away
36. 1.72 km ENE of Mono City, CaliforniaWed, Oct 24, 4:29 AM PDT · 13130 days ago · 9 km deep · 73 km away
37. 2.31 km SSW of Mono City, CaliforniaWed, Oct 24, 5:25 AM PDT · 13130 days ago · 8 km deep · 74 km away
38. 3.12 km ENE of Mono City, CaliforniaWed, Oct 24, 6:09 AM PDT · 13130 days ago · 11 km deep · 73 km away
39. 1.52 km NE of Mono City, CaliforniaWed, Oct 24, 6:26 AM PDT · 13130 days ago · 10 km deep · 72 km away
40. 1.61 km NE of Mono City, CaliforniaWed, Oct 24, 7:12 AM PDT · 13130 days ago · 10 km deep · 73 km away
41. 1.84 km ENE of Mono City, CaliforniaWed, Oct 24, 7:12 AM PDT · 13130 days ago · 11 km deep · 73 km away
42. 2.20 km SSE of Mono City, CaliforniaWed, Oct 24, 9:25 AM PDT · 13130 days ago · 9 km deep · 73 km away
43. 2.42 km NE of Mono City, CaliforniaWed, Oct 24, 4:54 PM PDT · 13129 days ago · 9 km deep · 72 km away
44. 2.12 km ENE of Mono City, CaliforniaThu, Oct 25, 10:14 AM PDT · 13128 days ago · 12 km deep · 74 km away
45. 3.90 km NE of Mono City, CaliforniaThu, Oct 25, 2:11 PM PDT · 13128 days ago · 10 km deep · 73 km away
46. 1.9California-Nevada border regionThu, Oct 25, 8:09 PM PDT · 13128 days ago · 9 km deep · 73 km away
47. 1.90 km SE of Mono City, CaliforniaThu, Oct 25, 8:15 PM PDT · 13128 days ago · 8 km deep · 73 km away
48. 2.21 km ENE of Mono City, CaliforniaFri, Oct 26, 12:56 AM PDT · 13128 days ago · 9 km deep · 73 km away
49. 3.118 km SE of Walker, CaliforniaFri, Oct 26, 4:02 AM PDT · 13128 days ago · 6 km deep · 32 km away
50. 3.61 km ENE of Mono City, CaliforniaFri, Oct 26, 4:57 AM PDT · 13128 days ago · 9 km deep · 73 km away
51. 1.61 km ENE of Mono City, CaliforniaFri, Oct 26, 5:57 AM PDT · 13128 days ago · 8 km deep · 73 km away
52. 1.61 km ESE of Mono City, CaliforniaFri, Oct 26, 12:19 PM PDT · 13127 days ago · 10 km deep · 74 km away
53. 2.82 km NNE of Mono City, CaliforniaFri, Oct 26, 12:42 PM PDT · 13127 days ago · 11 km deep · 71 km away
54. 1.86 km NNW of Mono City, CaliforniaFri, Oct 26, 3:04 PM PDT · 13127 days ago · 8 km deep · 66 km away
55. 1.92 km ENE of Mono City, CaliforniaFri, Oct 26, 9:54 PM PDT · 13127 days ago · 9 km deep · 73 km away
56. 2.01 km NE of Mono City, CaliforniaFri, Oct 26, 10:29 PM PDT · 13127 days ago · 10 km deep · 72 km away
57. 1.81 km SE of Mono City, CaliforniaSat, Oct 27, 10:07 AM PDT · 13126 days ago · 9 km deep · 74 km away
58. 2.514 km NW of Bridgeport, CaliforniaSat, Oct 27, 1:46 PM PDT · 13126 days ago · 2 km deep · 35 km away
59. 2.50 km SSE of Mono City, CaliforniaSat, Oct 27, 10:46 PM PDT · 13126 days ago · 8 km deep · 73 km away
60. 1.82 km NE of Mono City, CaliforniaSun, Oct 28, 1:34 AM PST · 13126 days ago · 11 km deep · 72 km away

The first 60 of 96.

Before

1. 2.48 km WNW of Topaz, CaliforniaSat, Sep 29, 5:06 AM PDT · 13155 days ago · 0 km deep · 6 km away
2. 2.234 km N of Yosemite Valley, CaliforniaFri, Sep 28, 8:25 PM PDT · 13155 days ago · 3 km deep · 60 km away
3. 1.93 km SSW of Topaz Lake, NevadaWed, Sep 26, 5:11 PM PDT · 13157 days ago · 4 km deep · 10 km away
4. 2.715 km SSE of Walker, CaliforniaWed, Sep 26, 5:14 AM PDT · 13158 days ago · -2 km deep · 28 km away
5. 2.13 km NW of Mesa Vista, CaliforniaTue, Sep 25, 12:00 AM PDT · 13159 days ago · -1 km deep · 33 km away
6. 2.44 km WSW of Topaz Lake, NevadaSun, Sep 23, 9:53 PM PDT · 13160 days ago · 4 km deep · 11 km away
7. 3.12 km SSW of Avery, CaliforniaTue, Sep 18, 9:42 AM PDT · 13166 days ago · 31 km deep · 80 km away
8. 1.96 km WSW of Markleeville, CaliforniaSun, Sep 16, 11:53 AM PDT · 13167 days ago · 0 km deep · 23 km away
9. 1.926 km E of Mono City, CaliforniaMon, Sep 10, 4:13 AM PDT · 13174 days ago · 3 km deep · 87 km away
10. 2.728 km E of Mono City, CaliforniaSun, Sep 9, 3:11 PM PDT · 13174 days ago · 7 km deep · 89 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc164658. Read Mon, Oct 5, 2026, 4:19 AM UTC.