M1.6 earthquake 3 km W of Round Valley, California

Magnitude

1.6 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, Aug 8, 1987, 10:21 AM PDT

UTC

1987-08-08 17:21:56 UTC

Depth

10.5 km (6.5 mi), shallow

Epicenter

37.420° N, 118.622° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.19

Depth from

From location

Station coverage gap

79°

Stations used

36

• West Bishop, CaliforniaPopulation 2,607. Forecast16 kmWNW
• Sanger, CaliforniaPopulation 24,950. Forecast115 kmNE
• Clovis, CaliforniaPopulation 104,180. Forecast117 kmNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast376 kmN

After

1. 1.914 km ESE of Yosemite Valley, CaliforniaSat, Aug 8, 11:51 AM PDT · 14300 days ago · 2 km deep · 77 km away
2. 1.815 km SE of Yosemite Valley, CaliforniaSat, Aug 8, 12:03 PM PDT · 14300 days ago · 6 km deep · 76 km away
3. 1.817 km ENE of Swall Meadows, CaliforniaSun, Aug 9, 2:38 AM PDT · 14299 days ago · 7 km deep · 22 km away
4. 1.916 km N of Dixon Lane-Meadow Creek, CaliforniaSun, Aug 9, 12:07 PM PDT · 14299 days ago · 3 km deep · 23 km away
5. 3.24 km SE of Swall Meadows, CaliforniaSun, Aug 9, 6:08 PM PDT · 14298 days ago · 11 km deep · 6 km away
6. 1.74 km SE of Swall Meadows, CaliforniaSun, Aug 9, 6:10 PM PDT · 14298 days ago · 10 km deep · 6 km away
7. 1.911 km NNE of Dixon Lane-Meadow Creek, CaliforniaSun, Aug 9, 8:25 PM PDT · 14298 days ago · 4 km deep · 23 km away
8. 1.916 km NNE of Mesa, CaliforniaSun, Aug 9, 11:11 PM PDT · 14298 days ago · 5 km deep · 21 km away
9. 1.65 km ENE of Dixon Lane-Meadow Creek, CaliforniaSun, Aug 9, 11:29 PM PDT · 14298 days ago · 7 km deep · 23 km away
10. 1.55 km ENE of Dixon Lane-Meadow Creek, CaliforniaMon, Aug 10, 1:28 AM PDT · 14298 days ago · 7 km deep · 23 km away
11. 1.62 km WSW of Round Valley, CaliforniaMon, Aug 10, 9:16 AM PDT · 14298 days ago · 10 km deep · 1 km away
12. 2.014 km ESE of Yosemite Valley, CaliforniaMon, Aug 10, 10:15 AM PDT · 14298 days ago · -2 km deep · 77 km away
13. 1.614 km N of Dixon Lane-Meadow Creek, CaliforniaMon, Aug 10, 11:55 AM PDT · 14298 days ago · 6 km deep · 22 km away
14. 1.812 km WSW of Aspen Springs, CaliforniaMon, Aug 10, 5:57 PM PDT · 14297 days ago · 6 km deep · 21 km away
15. 2.013 km N of Dixon Lane-Meadow Creek, CaliforniaMon, Aug 10, 7:10 PM PDT · 14297 days ago · 5 km deep · 21 km away
16. 1.92 km W of Round Valley, CaliforniaMon, Aug 10, 9:28 PM PDT · 14297 days ago · 10 km deep · 1 km away
17. 1.924 km E of Fish Camp, CaliforniaTue, Aug 11, 1:03 AM PDT · 14297 days ago · 13 km deep · 66 km away
18. 2.224 km E of Fish Camp, CaliforniaTue, Aug 11, 2:56 AM PDT · 14297 days ago · 16 km deep · 66 km away
19. 1.810 km NNE of Dixon Lane-Meadow Creek, CaliforniaTue, Aug 11, 3:05 PM PDT · 14296 days ago · 4 km deep · 23 km away
20. 1.612 km WSW of Aspen Springs, CaliforniaTue, Aug 11, 3:28 PM PDT · 14296 days ago · 3 km deep · 22 km away
21. 1.511 km NNE of Dixon Lane-Meadow Creek, CaliforniaWed, Aug 12, 7:59 AM PDT · 14296 days ago · 5 km deep · 23 km away
22. 2.012 km NNE of Dixon Lane-Meadow Creek, CaliforniaWed, Aug 12, 11:55 AM PDT · 14296 days ago · 4 km deep · 24 km away
23. 1.64 km ENE of Mesa, CaliforniaWed, Aug 12, 8:43 PM PDT · 14295 days ago · 5 km deep · 11 km away
24. 2.025 km E of Fish Camp, CaliforniaFri, Aug 14, 1:28 AM PDT · 14294 days ago · 15 km deep · 65 km away
25. 1.811 km SE of Mammoth Lakes, CaliforniaFri, Aug 14, 3:59 PM PDT · 14293 days ago · 5 km deep · 28 km away
26. 2.226 km E of Mono City, CaliforniaFri, Aug 14, 5:15 PM PDT · 14293 days ago · 5 km deep · 74 km away
27. 1.72 km SSE of Round Valley, CaliforniaFri, Aug 14, 8:17 PM PDT · 14293 days ago · 4 km deep · 5 km away
28. 1.725 km E of Mono City, CaliforniaSat, Aug 15, 3:34 AM PDT · 14293 days ago · 3 km deep · 73 km away
29. 1.7California-Nevada border regionSat, Aug 15, 3:34 AM PDT · 14293 days ago · 2 km deep · 78 km away
30. 2.616 km NNE of Mesa, CaliforniaSat, Aug 15, 5:17 AM PDT · 14293 days ago · 8 km deep · 20 km away
31. 1.731 km E of Mono City, CASat, Aug 15, 5:53 AM PDT · 14293 days ago · 3 km deep · 75 km away
32. 1.6California-Nevada border regionSat, Aug 15, 6:44 AM PDT · 14293 days ago · 2 km deep · 72 km away
33. 2.011 km WSW of Aspen Springs, CaliforniaSat, Aug 15, 8:35 AM PDT · 14293 days ago · 8 km deep · 21 km away
34. 1.915 km NNE of Mesa, CaliforniaSat, Aug 15, 9:30 AM PDT · 14293 days ago · 6 km deep · 20 km away
35. 1.611 km N of Dixon Lane-Meadow Creek, CaliforniaSat, Aug 15, 1:15 PM PDT · 14293 days ago · 5 km deep · 21 km away
36. 1.715 km S of Mammoth Lakes, CaliforniaSat, Aug 15, 1:48 PM PDT · 14292 days ago · 3 km deep · 33 km away
37. 1.826 km E of Mono City, CaliforniaSat, Aug 15, 2:07 PM PDT · 14292 days ago · 5 km deep · 74 km away
38. 1.914 km W of Aspen Springs, CaliforniaSat, Aug 15, 2:23 PM PDT · 14292 days ago · 3 km deep · 26 km away
39. 1.726 km E of Mono City, CaliforniaSat, Aug 15, 4:30 PM PDT · 14292 days ago · 5 km deep · 74 km away
40. 2.326 km E of Mono City, CaliforniaSat, Aug 15, 9:30 PM PDT · 14292 days ago · 5 km deep · 74 km away
41. 1.9California-Nevada border regionSat, Aug 15, 9:35 PM PDT · 14292 days ago · 4 km deep · 73 km away
42. 1.518 km ENE of Swall Meadows, CaliforniaSat, Aug 15, 10:05 PM PDT · 14292 days ago · 5 km deep · 23 km away
43. 1.818 km ENE of Swall Meadows, CaliforniaSun, Aug 16, 12:48 AM PDT · 14292 days ago · 7 km deep · 24 km away
44. 1.815 km NNE of Mesa, CaliforniaSun, Aug 16, 5:24 AM PDT · 14292 days ago · 6 km deep · 19 km away
45. 1.515 km NNE of Mesa, CaliforniaSun, Aug 16, 6:21 AM PDT · 14292 days ago · 6 km deep · 20 km away
46. 1.716 km NNE of Mesa, CaliforniaSun, Aug 16, 7:44 AM PDT · 14292 days ago · 5 km deep · 20 km away
47. 1.626 km E of Mono City, CaliforniaMon, Aug 17, 2:55 AM PDT · 14291 days ago · 4 km deep · 73 km away
48. 3.017 km SE of Yosemite Valley, CaliforniaMon, Aug 17, 3:25 AM PDT · 14291 days ago · 25 km deep · 75 km away
49. 2.426 km E of Mono City, CaliforniaMon, Aug 17, 5:23 AM PDT · 14291 days ago · 4 km deep · 74 km away
50. 2.516 km ENE of Swall Meadows, CaliforniaWed, Aug 19, 11:09 AM PDT · 14289 days ago · 9 km deep · 21 km away
51. 1.827 km E of Mono City, CaliforniaWed, Aug 19, 3:39 PM PDT · 14288 days ago · 5 km deep · 74 km away
52. 1.515 km N of Dixon Lane-Meadow Creek, CaliforniaWed, Aug 19, 9:14 PM PDT · 14288 days ago · 5 km deep · 21 km away
53. 2.115 km N of Dixon Lane-Meadow Creek, CaliforniaWed, Aug 19, 9:15 PM PDT · 14288 days ago · 6 km deep · 22 km away
54. 2.99 km SE of Bridgeport, CaliforniaWed, Aug 19, 10:58 PM PDT · 14288 days ago · 1 km deep · 99 km away
55. 2.59 km SE of Bridgeport, CaliforniaThu, Aug 20, 1:03 AM PDT · 14288 days ago · 4 km deep · 99 km away
56. 1.88 km ESE of Mammoth Lakes, CaliforniaThu, Aug 20, 4:23 AM PDT · 14288 days ago · 7 km deep · 33 km away
57. 1.58 km ESE of Mammoth Lakes, CaliforniaThu, Aug 20, 4:51 AM PDT · 14288 days ago · 6 km deep · 32 km away
58. 1.718 km N of Dixon Lane-Meadow Creek, CaliforniaThu, Aug 20, 11:06 AM PDT · 14288 days ago · 3 km deep · 23 km away
59. 1.615 km NNE of Mesa, CaliforniaThu, Aug 20, 12:56 PM PDT · 14288 days ago · 6 km deep · 19 km away
60. 2.69 km SE of Bridgeport, CaliforniaThu, Aug 20, 3:36 PM PDT · 14287 days ago · 4 km deep · 99 km away

The first 60 of at least 199.

Before

1. 2.011 km ENE of Wawona, CaliforniaFri, Aug 7, 11:56 PM PDT · 14300 days ago · 9 km deep · 83 km away
2. 2.07 km E of Swall Meadows, CaliforniaFri, Aug 7, 9:38 PM PDT · 14300 days ago · 6 km deep · 10 km away
3. 1.612 km ENE of Wawona, CaliforniaFri, Aug 7, 10:38 AM PDT · 14301 days ago · 3 km deep · 82 km away
4. 1.513 km N of Dixon Lane-Meadow Creek, CaliforniaFri, Aug 7, 9:31 AM PDT · 14301 days ago · 4 km deep · 23 km away
5. 1.79 km ESE of Mammoth Lakes, CaliforniaThu, Aug 6, 7:05 AM PDT · 14302 days ago · 6 km deep · 31 km away
6. 1.818 km ESE of Yosemite Valley, CaliforniaThu, Aug 6, 12:30 AM PDT · 14302 days ago · 4 km deep · 73 km away
7. 1.711 km SE of Mammoth Lakes, CaliforniaWed, Aug 5, 8:43 PM PDT · 14302 days ago · 4 km deep · 28 km away
8. 1.62 km WNW of Swall Meadows, CaliforniaWed, Aug 5, 8:00 PM PDT · 14302 days ago · 9 km deep · 12 km away
9. 2.24 km NNW of Round Valley, CaliforniaWed, Aug 5, 2:51 PM PDT · 14302 days ago · 12 km deep · 5 km away
10. 1.74 km ESE of Mammoth Lakes, CaliforniaTue, Aug 4, 11:27 PM PDT · 14303 days ago · 2 km deep · 36 km away
11. 1.812 km WNW of Aspen Springs, CaliforniaTue, Aug 4, 11:22 PM PDT · 14303 days ago · 7 km deep · 27 km away
12. 1.912 km WNW of Aspen Springs, CaliforniaTue, Aug 4, 11:16 PM PDT · 14303 days ago · 6 km deep · 27 km away
13. 1.812 km WNW of Aspen Springs, CaliforniaTue, Aug 4, 11:16 PM PDT · 14303 days ago · 7 km deep · 27 km away
14. 1.716 km NNE of Mesa, CaliforniaTue, Aug 4, 3:23 PM PDT · 14303 days ago · 6 km deep · 21 km away
15. 1.610 km NNE of Dixon Lane-Meadow Creek, CaliforniaMon, Aug 3, 10:15 PM PDT · 14304 days ago · 4 km deep · 23 km away
16. 1.519 km ENE of Swall Meadows, CaliforniaMon, Aug 3, 12:15 PM PDT · 14305 days ago · 6 km deep · 24 km away
17. 1.76 km ESE of Mammoth Lakes, CaliforniaSun, Aug 2, 11:39 PM PDT · 14305 days ago · 3 km deep · 34 km away
18. 1.810 km SW of Aspen Springs, CaliforniaSun, Aug 2, 7:00 PM PDT · 14305 days ago · 11 km deep · 17 km away
19. 1.99 km W of Aspen Springs, CaliforniaSun, Aug 2, 4:15 PM PDT · 14305 days ago · 5 km deep · 22 km away
20. 1.620 km ENE of Swall Meadows, CaliforniaSun, Aug 2, 2:26 PM PDT · 14305 days ago · 7 km deep · 25 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc104264. Read Fri, Oct 2, 2026, 8:16 AM UTC.