California earthquakes

M1.7 earthquake 12km ENE of Mammoth Lakes, CA

A magnitude 1.7 earthquake struck 12km ENE of Mammoth Lakes, CA on Mon, Apr 20, 1981, 9:43 PM PST (05:43 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.1 25km NE of Mammoth Lakes, CA. 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
1.7 (mh), micro
Local time
UTC
1981-04-21 05:43:40 UTC
Depth
3.9 km (2.4 mi), shallow
Epicenter
37.659° N, 118.848° 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 1.2 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.52
Depth from
Operator assigned
Station coverage gap
128°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 158 in the 60 days after this one and 41 in the 30 days before it.

After

  1. 2.125km NE of Mammoth Lakes, CA · 16590 days ago · 6 km deep · 16 km away
  2. 2.21km NNE of Mammoth Lakes, CA · 16590 days ago · 5 km deep · 11 km away
  3. 2.911 km E of Mammoth Lakes, California · 16590 days ago · 9 km deep · 3 km away
  4. 1.956km SSE of Hawthorne, NV · 16590 days ago · 4 km deep · 69 km away
  5. 2.158km NNE of Dixon Lane-Meadow Creek, CA · 16589 days ago · 4 km deep · 59 km away
  6. 2.311km E of Mammoth Lakes, CA · 16589 days ago · 4 km deep · 3 km away
  7. 2.10km ESE of Mammoth Lakes, CA · 16589 days ago · 4 km deep · 12 km away
  8. 2.118km E of Mammoth Lakes, CA · 16589 days ago · 4 km deep · 8 km away
  9. 1.79 km E of Mammoth Lakes, California · 16588 days ago · 8 km deep · 3 km away
  10. 1.83km NNW of Mammoth Lakes, CA · 16588 days ago · 1 km deep · 13 km away
  11. 2.043km NNE of Dixon Lane-Meadow Creek, CA · 16588 days ago · 4 km deep · 51 km away
  12. 2.310km ENE of Mammoth Lakes, CA · 16588 days ago · 4 km deep · 2 km away
  13. 2.126km E of Mammoth Lakes, CA · 16588 days ago · 4 km deep · 14 km away
  14. 1.742km N of Dixon Lane-Meadow Creek, CA · 16588 days ago · 2 km deep · 47 km away
  15. 2.414km NNE of Mammoth Lakes, CA · 16587 days ago · 4 km deep · 13 km away
  16. 1.7California-Nevada border region · 16587 days ago · 6 km deep · 9 km away
  17. 2.611 km SW of Swall Meadows, California · 16587 days ago · 10 km deep · 27 km away
  18. 1.554km NNE of Dixon Lane-Meadow Creek, CA · 16587 days ago · 0 km deep · 68 km away
  19. 2.05km NNW of Mammoth Lakes, CA · 16586 days ago · 5 km deep · 14 km away
  20. 3.32 km ESE of Mammoth Lakes, California · 16586 days ago · 6 km deep · 8 km away
  21. 1.610km NE of Mammoth Lakes, CA · 16586 days ago · 4 km deep · 5 km away
  22. 1.838km N of Dixon Lane-Meadow Creek, CA · 16585 days ago · 4 km deep · 42 km away
  23. 2.62km NNE of Mammoth Lakes, CA · 16585 days ago · 5 km deep · 11 km away
  24. 1.68 km N of Sunny Slopes, California · 16584 days ago · 2 km deep · 14 km away
  25. 1.962km N of Dixon Lane-Meadow Creek, CA · 16582 days ago · 10 km deep · 58 km away
  26. 4.226 km NNW of Benton, California · 16582 days ago · 6 km deep · 49 km away
  27. 1.858km NE of Mammoth Lakes, CA · 16582 days ago · -2 km deep · 48 km away
  28. 2.252km SSE of Hawthorne, NV · 16582 days ago · -1 km deep · 61 km away
  29. 2.251km S of Hawthorne, NV · 16582 days ago · 4 km deep · 49 km away
  30. 2.044km SSE of Hawthorne, NV · 16582 days ago · 4 km deep · 70 km away
  31. 1.820km E of Mammoth Lakes, CA · 16581 days ago · 6 km deep · 8 km away
  32. 1.963km N of Dixon Lane-Meadow Creek, CA · 16581 days ago · 10 km deep · 58 km away
  33. 1.7California-Nevada border region · 16580 days ago · 6 km deep · 15 km away
  34. 2.249km ESE of Hawthorne, NV · 16580 days ago · 4 km deep · 94 km away
  35. 1.632km NE of Squaw Valley, CA · 16579 days ago · 4 km deep · 79 km away
  36. 2.134km SSW of Hawthorne, NV · 16579 days ago · 4 km deep · 65 km away
  37. 3.310 km W of Aspen Springs, California · 16578 days ago · 3 km deep · 11 km away
  38. 1.940km SSE of Hawthorne, NV · 16577 days ago · 4 km deep · 64 km away
  39. 2.348km S of Hawthorne, NV · 16577 days ago · 4 km deep · 56 km away
  40. 1.710km NE of Mammoth Lakes, CA · 16577 days ago · 4 km deep · 5 km away
  41. 2.152km SE of Hawthorne, NV · 16577 days ago · 4 km deep · 82 km away
  42. 2.256km SE of Hawthorne, NV · 16575 days ago · 4 km deep · 90 km away
  43. 4.512 km NNW of Benton, California · 16574 days ago · 9 km deep · 40 km away
  44. 2.150km NE of Mammoth Lakes, CA · 16574 days ago · 4 km deep · 40 km away
  45. 2.155km NE of Mammoth Lakes, CA · 16574 days ago · 4 km deep · 45 km away
  46. 2.256km NE of Mammoth Lakes, CA · 16574 days ago · 4 km deep · 46 km away
  47. 3.612 km NNW of Benton, California · 16574 days ago · 9 km deep · 40 km away
  48. 1.555km NE of Mammoth Lakes, CA · 16574 days ago · 4 km deep · 46 km away
  49. 1.941km NE of Mammoth Lakes, CA · 16574 days ago · 4 km deep · 31 km away
  50. 2.96 km SW of Aspen Springs, California · 16574 days ago · 8 km deep · 18 km away
  51. 1.745km ENE of Mammoth Lakes, CA · 16574 days ago · 4 km deep · 34 km away
  52. 1.822km E of Big Pine, CA · 16574 days ago · 4 km deep · 90 km away
  53. 2.046km NE of Mammoth Lakes, CA · 16573 days ago · 4 km deep · 36 km away
  54. 1.852km NE of Mammoth Lakes, CA · 16573 days ago · 4 km deep · 42 km away
  55. 2.334km NE of Mammoth Lakes, CA · 16573 days ago · 4 km deep · 24 km away
  56. 2.254km NE of Mammoth Lakes, CA · 16573 days ago · 4 km deep · 44 km away
  57. 2.816km SE of Mammoth Lakes, CA · 16573 days ago · 4 km deep · 12 km away
  58. 2.89km ENE of Mammoth Lakes, CA · 16573 days ago · 4 km deep · 4 km away
  59. 2.844km N of Mammoth Lakes, CA · 16573 days ago · 4 km deep · 43 km away
  60. 3.117 km N of Big Creek, California · 16572 days ago · 3 km deep · 48 km away

The first 60 of 158.

Before

  1. 1.851km N of Dixon Lane-Meadow Creek, CA · 16590 days ago · 4 km deep · 49 km away
  2. 3.23 km ESE of Mammoth Lakes, California · 16590 days ago · 6 km deep · 8 km away
  3. 3.03 km ESE of Mammoth Lakes, California · 16590 days ago · 4 km deep · 8 km away
  4. 3.310 km NW of Aspen Springs, California · 16590 days ago · 6 km deep · 6 km away
  5. 2.021km ENE of Mammoth Lakes, CA · 16590 days ago · 4 km deep · 10 km away
  6. 2.23km NNE of Mammoth Lakes, CA · 16590 days ago · 5 km deep · 10 km away
  7. 2.42km NNE of Mammoth Lakes, CA · 16590 days ago · 5 km deep · 11 km away
  8. 2.12 km E of Mammoth Lakes, California · 16590 days ago · 5 km deep · 8 km away
  9. 1.52 km E of Mammoth Lakes, California · 16590 days ago · 5 km deep · 8 km away
  10. 2.32km NE of Mammoth Lakes, CA · 16590 days ago · 5 km deep · 10 km away
  11. 3.415 km SW of Aspen Springs, California · 16591 days ago · 10 km deep · 22 km away
  12. 2.69 km W of Aspen Springs, California · 16591 days ago · 8 km deep · 12 km away
  13. 2.913 km SW of Aspen Springs, California · 16592 days ago · 10 km deep · 23 km away
  14. 1.716km SE of Mammoth Lakes, CA · 16593 days ago · 12 km deep · 12 km away
  15. 2.016km E of Mammoth Lakes, CA · 16593 days ago · 4 km deep · 4 km away
  16. 3.729 km NNW of Benton, California · 16593 days ago · 5 km deep · 50 km away
  17. 2.159km NNE of Dixon Lane-Meadow Creek, CA · 16594 days ago · 4 km deep · 59 km away
  18. 1.917km SSE of Mammoth Lakes, CA · 16594 days ago · 4 km deep · 20 km away
  19. 2.665km SE of Hawthorne, NV · 16594 days ago · 4 km deep · 86 km away
  20. 2.766km SE of Hawthorne, NV · 16594 days ago · 4 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci514713. Read Tue, Sep 22, 2026, 10:17 AM UTC.