California earthquakes

M1.8 earthquake 12 km SE of Mammoth Lakes, California

A magnitude 1.8 earthquake struck 12 km SE of Mammoth Lakes, California on Tue, Feb 26, 1985, 9:09 PM PST (05:09 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.4 6 km WSW of Aspen Springs, California. This one was a foreshock.

Mammoth Lakes forecastMore in California

Map

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

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The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1985-02-27 05:09:43 UTC
Depth
3.2 km (2.0 mi), shallow
Epicenter
37.560° N, 118.882° 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 0.3 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.20
Depth from
From location
Station coverage gap
77°
Stations used
34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.611 km SW of Aspen Springs, California · 15157 days ago · 5 km deep · 11 km away
  2. 1.815 km WSW of Aspen Springs, California · 15157 days ago · 3 km deep · 8 km away
  3. 1.54 km WSW of Aspen Springs, California · 15157 days ago · 4 km deep · 11 km away
  4. 1.75 km SSE of Swall Meadows, California · 15157 days ago · 6 km deep · 26 km away
  5. 2.46 km WSW of Aspen Springs, California · 15157 days ago · 0 km deep · 10 km away
  6. 1.54 km N of Round Valley, California · 15156 days ago · 8 km deep · 28 km away
  7. 2.48 km SW of Wilkerson, California · 15156 days ago · 14 km deep · 54 km away
  8. 2.12 km NW of Round Valley, California · 15156 days ago · 10 km deep · 28 km away
  9. 5.14 km NNW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  10. 2.04 km NNW of Round Valley, California · 15156 days ago · 7 km deep · 27 km away
  11. 2.94 km NNW of Round Valley, California · 15156 days ago · 7 km deep · 27 km away
  12. 2.35 km SSE of Swall Meadows, California · 15156 days ago · 7 km deep · 26 km away
  13. 1.95 km NNW of Round Valley, California · 15156 days ago · 7 km deep · 26 km away
  14. 2.14 km NNW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  15. 3.84 km NNW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  16. 1.84 km NNW of Round Valley, California · 15156 days ago · 5 km deep · 27 km away
  17. 3.63 km NW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  18. 1.74 km NNW of Round Valley, California · 15156 days ago · 7 km deep · 27 km away
  19. 2.83 km NW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  20. 1.84 km NNW of Round Valley, California · 15156 days ago · 5 km deep · 27 km away
  21. 3.54 km NNW of Round Valley, California · 15156 days ago · 8 km deep · 26 km away
  22. 2.04 km NNW of Round Valley, California · 15156 days ago · 8 km deep · 26 km away
  23. 1.73 km NW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  24. 1.55 km NNW of Round Valley, California · 15156 days ago · 7 km deep · 26 km away
  25. 1.64 km NNW of Round Valley, California · 15156 days ago · 8 km deep · 27 km away
  26. 1.64 km NNW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  27. 1.84 km NNW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  28. 1.75 km WNW of Aspen Springs, California · 15156 days ago · 4 km deep · 9 km away
  29. 2.53 km NW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  30. 2.04 km NNW of Round Valley, California · 15156 days ago · 6 km deep · 27 km away
  31. 1.75 km SSE of Swall Meadows, California · 15156 days ago · 6 km deep · 26 km away
  32. 2.42 km NNW of Round Valley, California · 15155 days ago · 7 km deep · 28 km away
  33. 2.24 km NNW of Round Valley, California · 15155 days ago · 5 km deep · 27 km away
  34. 2.25 km SSE of Swall Meadows, California · 15155 days ago · 6 km deep · 26 km away
  35. 1.7California-Nevada border region · 15155 days ago · 5 km deep · 26 km away
  36. 2.3California-Nevada border region · 15155 days ago · 3 km deep · 12 km away
  37. 1.74 km NNW of Round Valley, California · 15155 days ago · 8 km deep · 26 km away
  38. 1.75 km N of Round Valley, California · 15155 days ago · 7 km deep · 28 km away
  39. 1.8California-Nevada border region · 15155 days ago · 5 km deep · 27 km away
  40. 1.76 km WSW of Aspen Springs, California · 15155 days ago · 0 km deep · 10 km away
  41. 1.75 km SSE of Swall Meadows, California · 15155 days ago · 7 km deep · 26 km away
  42. 1.75 km SSE of Swall Meadows, California · 15155 days ago · 5 km deep · 26 km away
  43. 2.111 km WNW of Aspen Springs, California · 15155 days ago · 9 km deep · 6 km away
  44. 1.61 km SW of Mesa, California · 15155 days ago · 9 km deep · 34 km away
  45. 1.63 km NNW of Round Valley, California · 15154 days ago · 10 km deep · 28 km away
  46. 1.84 km NNW of Round Valley, California · 15154 days ago · 6 km deep · 27 km away
  47. 2.95 km NNW of Round Valley, California · 15154 days ago · 5 km deep · 26 km away
  48. 1.93 km NNW of Round Valley, California · 15154 days ago · 7 km deep · 27 km away
  49. 2.28 km WSW of Aspen Springs, California · 15154 days ago · 4 km deep · 7 km away
  50. 1.914 km SE of Mammoth Lakes, California · 15154 days ago · 6 km deep · 2 km away
  51. 1.61 km E of Bishop, California · 15153 days ago · 6 km deep · 50 km away
  52. 1.94 km NNW of Round Valley, California · 15153 days ago · 6 km deep · 27 km away
  53. 1.830 km ENE of Lee Vining, California · 15153 days ago · 2 km deep · 55 km away
  54. 1.64 km W of Aspen Springs, California · 15153 days ago · 3 km deep · 10 km away
  55. 1.73 km NW of Round Valley, California · 15153 days ago · 6 km deep · 27 km away
  56. 1.711 km W of Aspen Springs, California · 15153 days ago · 8 km deep · 3 km away
  57. 2.111 km W of Aspen Springs, California · 15152 days ago · 8 km deep · 3 km away
  58. 2.2California-Nevada border region · 15152 days ago · 5 km deep · 99 km away
  59. 1.64 km NW of Round Valley, California · 15152 days ago · 4 km deep · 26 km away
  60. 1.718 km NW of Bridgeport, California · 15152 days ago · 3 km deep · 99 km away

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc42226. Read Tue, Sep 22, 2026, 5:24 PM UTC.