California earthquakes

M1.9 earthquake 3 km WSW of Round Valley, California

A magnitude 1.9 earthquake struck 3 km WSW of Round Valley, California on Sat, Aug 31, 1985, 5:24 AM PDT (12:24 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M2.2 3 km WSW of Round Valley, California. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1985-08-31 12:24:00 UTC
Depth
10.9 km (6.8 mi), shallow
Epicenter
37.409° N, 118.621° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.7 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.25
Depth from
From location
Station coverage gap
213°, poorly surrounded by stations
Stations used
20

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 114 in the 60 days after this one and 84 in the 30 days before it.

After

  1. 2.23 km WSW of Round Valley, California · 14997 days ago · 11 km deep · 1 km away
  2. 1.817 km SW of Aspen Springs, California · 14997 days ago · 6 km deep · 20 km away
  3. 2.410 km ESE of Mammoth Lakes, California · 14997 days ago · 7 km deep · 31 km away
  4. 1.64 km N of Round Valley, California · 14996 days ago · 5 km deep · 6 km away
  5. 1.75 km SSW of Swall Meadows, California · 14996 days ago · 4 km deep · 7 km away
  6. 1.88 km ESE of Mammoth Lakes, California · 14996 days ago · 4 km deep · 33 km away
  7. 1.77 km SE of Mammoth Lakes, California · 14995 days ago · 3 km deep · 33 km away
  8. 1.69 km WSW of Aspen Springs, California · 14995 days ago · 4 km deep · 22 km away
  9. 1.511 km W of Aspen Springs, California · 14995 days ago · 7 km deep · 26 km away
  10. 2.013 km SW of Aspen Springs, California · 14995 days ago · 3 km deep · 21 km away
  11. 3.722 km E of Big Pine, California · 14995 days ago · 9 km deep · 57 km away
  12. 1.714 km W of Aspen Springs, California · 14994 days ago · 5 km deep · 27 km away
  13. 2.36 km WSW of Aspen Springs, California · 14994 days ago · 0 km deep · 19 km away
  14. 1.84 km SSE of Swall Meadows, California · 14994 days ago · 10 km deep · 7 km away
  15. 1.78 km WSW of Aspen Springs, California · 14993 days ago · 4 km deep · 22 km away
  16. 1.81 km NNE of Mesa, California · 14992 days ago · 6 km deep · 8 km away
  17. 2.04 km WNW of Aspen Springs, California · 14992 days ago · 4 km deep · 22 km away
  18. 1.83 km WNW of Aspen Springs, California · 14992 days ago · 4 km deep · 22 km away
  19. 2.611 km W of Aspen Springs, California · 14991 days ago · 8 km deep · 26 km away
  20. 1.512 km W of Aspen Springs, California · 14991 days ago · 5 km deep · 28 km away
  21. 1.58 km NW of Benton, California · 14989 days ago · 4 km deep · 53 km away
  22. 1.78 km NW of Benton, California · 14989 days ago · 2 km deep · 53 km away
  23. 1.810 km W of Aspen Springs, California · 14989 days ago · 4 km deep · 24 km away
  24. 1.92 km W of Swall Meadows, California · 14989 days ago · 14 km deep · 12 km away
  25. 1.834 km ENE of Lee Vining, California · 14989 days ago · 3 km deep · 73 km away
  26. 2.111 km WNW of Aspen Springs, California · 14989 days ago · 8 km deep · 29 km away
  27. 1.932 km ENE of Lee Vining, California · 14988 days ago · 9 km deep · 73 km away
  28. 2.212 km SW of Aspen Springs, California · 14986 days ago · 3 km deep · 20 km away
  29. 2.116 km NW of Benton, California · 14984 days ago · 1 km deep · 59 km away
  30. 2.14 km SE of Swall Meadows, California · 14984 days ago · 11 km deep · 7 km away
  31. 1.61 km SE of Aspen Springs, California · 14984 days ago · 8 km deep · 17 km away
  32. 1.713 km SW of Aspen Springs, California · 14983 days ago · 7 km deep · 19 km away
  33. 1.54 km SW of Aspen Springs, California · 14982 days ago · 2 km deep · 17 km away
  34. 2.215 km ESE of Yosemite Valley, California · 14982 days ago · 18 km deep · 77 km away
  35. 1.94 km S of Swall Meadows, California · 14981 days ago · 3 km deep · 7 km away
  36. 2.05 km WSW of Mammoth Lakes, California · 14981 days ago · -1 km deep · 44 km away
  37. 1.83 km WSW of Round Valley, California · 14980 days ago · 11 km deep · 0 km away
  38. 1.510 km WNW of Aspen Springs, California · 14980 days ago · 9 km deep · 27 km away
  39. 1.523 km WSW of Mammoth Lakes, California · 14980 days ago · 2 km deep · 56 km away
  40. 3.56 km SW of Swall Meadows, California · 14979 days ago · 4 km deep · 8 km away
  41. 2.911 km W of Round Valley, California · 14978 days ago · 14 km deep · 8 km away
  42. 1.511 km W of Round Valley, California · 14978 days ago · 14 km deep · 8 km away
  43. 2.05 km W of Mammoth Lakes, California · 14977 days ago · -1 km deep · 45 km away
  44. 3.61 km ENE of Round Valley, California · 14976 days ago · 10 km deep · 5 km away
  45. 1.61 km ENE of Round Valley, California · 14976 days ago · 10 km deep · 5 km away
  46. 2.3California-Nevada border region · 14976 days ago · 7 km deep · 78 km away
  47. 1.816 km E of Mono City, California · 14976 days ago · 8 km deep · 78 km away
  48. 1.815 km ENE of Mono City, California · 14975 days ago · 2 km deep · 81 km away
  49. 2.84 km SSE of Swall Meadows, California · 14975 days ago · 9 km deep · 7 km away
  50. 1.811 km WNW of Aspen Springs, California · 14975 days ago · 6 km deep · 28 km away
  51. 2.62 km SSE of Round Valley, California · 14975 days ago · 7 km deep · 4 km away
  52. 1.97 km WSW of June Lake, California · 14974 days ago · 3 km deep · 61 km away
  53. 1.65 km N of Round Valley, California · 14974 days ago · 4 km deep · 7 km away
  54. 3.65 km S of Swall Meadows, California · 14974 days ago · 4 km deep · 6 km away
  55. 1.85 km NW of Round Valley, California · 14973 days ago · 10 km deep · 5 km away
  56. 1.86 km NW of Mammoth Lakes, California · 14972 days ago · -1 km deep · 47 km away
  57. 1.82 km WNW of Round Valley, California · 14972 days ago · 9 km deep · 2 km away
  58. 2.312 km SW of Aspen Springs, California · 14971 days ago · 7 km deep · 18 km away
  59. 1.716 km E of Mono City, California · 14971 days ago · 6 km deep · 78 km away
  60. 3.012 km W of Aspen Springs, California · 14971 days ago · 3 km deep · 26 km away

The first 60 of 114.

Before

  1. 2.63 km WSW of Round Valley, California · 14997 days ago · 11 km deep · 0 km away
  2. 2.93 km WSW of Round Valley, California · 14997 days ago · 10 km deep · 0 km away
  3. 2.012 km W of Aspen Springs, California · 14997 days ago · 7 km deep · 27 km away
  4. 1.73 km NW of Swall Meadows, California · 14998 days ago · 7 km deep · 14 km away
  5. 1.55 km SSW of Swall Meadows, California · 14998 days ago · 3 km deep · 6 km away
  6. 1.632 km ENE of Lee Vining, California · 14998 days ago · 2 km deep · 69 km away
  7. 1.95 km WSW of Mammoth Lakes, California · 14998 days ago · 0 km deep · 44 km away
  8. 2.23 km NW of Swall Meadows, California · 14998 days ago · 7 km deep · 14 km away
  9. 1.918 km ESE of Yosemite Valley, California · 14998 days ago · 4 km deep · 74 km away
  10. 2.17 km WSW of Mammoth Lakes, California · 14999 days ago · 1 km deep · 45 km away
  11. 2.113 km SW of Aspen Springs, California · 14999 days ago · 2 km deep · 20 km away
  12. 1.54 km WNW of Aspen Springs, California · 14999 days ago · 5 km deep · 22 km away
  13. 2.18 km SSW of Aspen Springs, California · 14999 days ago · 10 km deep · 13 km away
  14. 2.09 km W of Aspen Springs, California · 14999 days ago · 10 km deep · 23 km away
  15. 1.818 km NW of Benton, California · 15000 days ago · 7 km deep · 60 km away
  16. 2.45 km W of Mammoth Lakes, California · 15001 days ago · 0 km deep · 45 km away
  17. 1.88 km WSW of Aspen Springs, California · 15001 days ago · 4 km deep · 22 km away
  18. 1.611 km ENE of Mammoth Lakes, California · 15001 days ago · 5 km deep · 36 km away
  19. 2.03 km WSW of Round Valley, California · 15001 days ago · 9 km deep · 0 km away
  20. 1.83 km WSW of Round Valley, California · 15001 days ago · 9 km deep · 0 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc54346 (also filed as ci113883). Read Tue, Sep 22, 2026, 11:16 AM UTC.