California earthquakes

M1.6 earthquake 17 km NNE of Mesa, California

A magnitude 1.6 earthquake struck 17 km NNE of Mesa, California on Wed, Oct 21, 1987, 1:15 AM PDT (08:15 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.5 6 km WNW of Round Valley, California. This one was a foreshock.

Dixon Lane-Meadow Creek 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
1.6 (md), micro
Local time
UTC
1987-10-21 08:15:38 UTC
Depth
8.2 km (5.1 mi), shallow
Epicenter
37.558° N, 118.452° 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 0.2 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.22
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: at least 199 in the 60 days after this one and 139 in the 30 days before it.

After

  1. 2.118 km ENE of Swall Meadows, California · 14224 days ago · 7 km deep · 3 km away
  2. 2.017 km ENE of Swall Meadows, California · 14223 days ago · 9 km deep · 3 km away
  3. 1.617 km ENE of Swall Meadows, California · 14223 days ago · 9 km deep · 3 km away
  4. 1.926 km NE of Bass Lake, California · 14223 days ago · 9 km deep · 78 km away
  5. 1.917 km ENE of Swall Meadows, California · 14223 days ago · 8 km deep · 2 km away
  6. 1.912 km NNE of Dixon Lane-Meadow Creek, California · 14223 days ago · 5 km deep · 9 km away
  7. 1.711 km NNE of Dixon Lane-Meadow Creek, California · 14223 days ago · 6 km deep · 10 km away
  8. 1.610 km SW of Aspen Springs, California · 14223 days ago · 5 km deep · 31 km away
  9. 1.82 km NNW of Dixon Lane-Meadow Creek, California · 14222 days ago · 8 km deep · 17 km away
  10. 2.012 km NNE of Dixon Lane-Meadow Creek, California · 14222 days ago · 3 km deep · 10 km away
  11. 2.011 km SW of Aspen Springs, California · 14222 days ago · 7 km deep · 33 km away
  12. 2.220 km ENE of Big Pine, CA · 14222 days ago · 1 km deep · 52 km away
  13. 1.613 km SE of Mammoth Lakes, California · 14222 days ago · 6 km deep · 36 km away
  14. 2.518 km NNE of Mesa, California · 14222 days ago · 5 km deep · 1 km away
  15. 1.513 km SW of Aspen Springs, California · 14221 days ago · 5 km deep · 35 km away
  16. 1.612 km NNE of Dixon Lane-Meadow Creek, California · 14221 days ago · 5 km deep · 10 km away
  17. 3.08 km SSE of Shaver Lake, California · 14221 days ago · 30 km deep · 94 km away
  18. 1.626 km NW of Benton, California · 14221 days ago · 4 km deep · 53 km away
  19. 1.714 km W of Aspen Springs, California · 14220 days ago · 4 km deep · 37 km away
  20. 1.612 km W of Aspen Springs, California · 14219 days ago · 6 km deep · 35 km away
  21. 1.813 km N of Dixon Lane-Meadow Creek, California · 14219 days ago · 5 km deep · 8 km away
  22. 1.614 km WSW of Aspen Springs, California · 14219 days ago · 3 km deep · 37 km away
  23. 1.62 km E of Mammoth Lakes, California · 14219 days ago · 6 km deep · 45 km away
  24. 1.51 km E of Round Valley, California · 14218 days ago · 10 km deep · 19 km away
  25. 1.613 km NW of Benton, California · 14218 days ago · 6 km deep · 41 km away
  26. 1.611 km SW of Aspen Springs, California · 14217 days ago · 9 km deep · 33 km away
  27. 1.614 km W of Round Valley, California · 14217 days ago · 12 km deep · 31 km away
  28. 2.03 km W of Round Valley, California · 14216 days ago · 10 km deep · 22 km away
  29. 1.612 km W of Aspen Springs, California · 14216 days ago · 4 km deep · 36 km away
  30. 1.929 km N of Big Creek, California · 14216 days ago · 26 km deep · 73 km away
  31. 1.612 km WSW of Aspen Springs, California · 14216 days ago · 4 km deep · 35 km away
  32. 2.211 km SSW of Aspen Springs, California · 14215 days ago · 8 km deep · 31 km away
  33. 1.72 km WNW of Swall Meadows, California · 14215 days ago · 9 km deep · 19 km away
  34. 1.73 km ESE of Mammoth Lakes, California · 14214 days ago · 2 km deep · 44 km away
  35. 1.79 km WSW of Aspen Springs, California · 14214 days ago · 4 km deep · 32 km away
  36. 1.611 km WSW of Aspen Springs, California · 14213 days ago · 4 km deep · 34 km away
  37. 1.612 km W of Aspen Springs, California · 14213 days ago · 4 km deep · 35 km away
  38. 1.711 km SW of Aspen Springs, California · 14213 days ago · 7 km deep · 33 km away
  39. 1.613 km W of Aspen Springs, California · 14213 days ago · 4 km deep · 37 km away
  40. 1.913 km W of Aspen Springs, California · 14213 days ago · 3 km deep · 37 km away
  41. 1.619 km NNE of Mesa, California · 14212 days ago · 4 km deep · 3 km away
  42. 2.322 km E of Yosemite Valley, California · 14211 days ago · 20 km deep · 79 km away
  43. 1.86 km NE of Dixon Lane-Meadow Creek, California · 14211 days ago · 8 km deep · 17 km away
  44. 2.117 km NNE of Mesa, California · 14211 days ago · 7 km deep · 0 km away
  45. 3.113 km NNE of Mesa, California · 14210 days ago · 6 km deep · 3 km away
  46. 2.113 km NNE of Mesa, California · 14210 days ago · 6 km deep · 4 km away
  47. 1.71 km WNW of Round Valley, California · 14210 days ago · 6 km deep · 20 km away
  48. 1.913 km NW of Benton, California · 14209 days ago · 4 km deep · 41 km away
  49. 2.011 km SSW of Aspen Springs, California · 14209 days ago · 8 km deep · 31 km away
  50. 1.512 km W of Aspen Springs, California · 14209 days ago · 6 km deep · 36 km away
  51. 1.819 km NNE of Mesa, California · 14209 days ago · 4 km deep · 3 km away
  52. 2.112 km WSW of Aspen Springs, California · 14208 days ago · 4 km deep · 35 km away
  53. 2.04 km N of Round Valley, California · 14208 days ago · 9 km deep · 16 km away
  54. 1.710 km SW of Aspen Springs, California · 14207 days ago · 6 km deep · 31 km away
  55. 2.010 km ESE of Mammoth Lakes, California · 14207 days ago · 2 km deep · 36 km away
  56. 2.011 km WNW of Aspen Springs, California · 14207 days ago · 8 km deep · 34 km away
  57. 1.712 km WNW of Aspen Springs, California · 14207 days ago · 7 km deep · 35 km away
  58. 1.710 km WSW of Aspen Springs, California · 14207 days ago · 6 km deep · 33 km away
  59. 1.517 km NE of Swall Meadows, California · 14207 days ago · 7 km deep · 5 km away
  60. 1.69 km E of Mammoth Lakes, California · 14207 days ago · 6 km deep · 38 km away

The first 60 of at least 199.

Before

  1. 1.811 km NNW of Benton, California · 14225 days ago · 3 km deep · 41 km away
  2. 1.811 km N of Benton, California · 14225 days ago · 2 km deep · 41 km away
  3. 1.611 km N of Benton, California · 14225 days ago · 6 km deep · 41 km away
  4. 1.811 km NNW of Benton, California · 14225 days ago · 10 km deep · 41 km away
  5. 2.218 km NE of Mesa, California · 14225 days ago · 5 km deep · 2 km away
  6. 2.119 km ENE of Swall Meadows, California · 14225 days ago · 6 km deep · 2 km away
  7. 1.510 km SW of Aspen Springs, California · 14225 days ago · 5 km deep · 32 km away
  8. 1.62 km WNW of Round Valley, California · 14225 days ago · 9 km deep · 21 km away
  9. 1.59 km NNE of Dixon Lane-Meadow Creek, California · 14226 days ago · 7 km deep · 13 km away
  10. 1.65 km ESE of Mammoth Lakes, California · 14226 days ago · 6 km deep · 41 km away
  11. 2.230 km E of Fish Camp, California · 14226 days ago · 17 km deep · 75 km away
  12. 2.224 km E of Fish Camp, California · 14227 days ago · 15 km deep · 81 km away
  13. 1.53 km SSW of Mesa, California · 14227 days ago · 13 km deep · 21 km away
  14. 1.812 km SE of Mammoth Lakes, California · 14227 days ago · 1 km deep · 36 km away
  15. 2.128 km E of Fish Camp, California · 14227 days ago · 4 km deep · 77 km away
  16. 1.826 km NE of Bass Lake, California · 14227 days ago · 7 km deep · 79 km away
  17. 1.930 km E of Fish Camp, California · 14227 days ago · 17 km deep · 75 km away
  18. 1.925 km E of Fish Camp, California · 14227 days ago · 10 km deep · 80 km away
  19. 1.528 km ENE of Lee Vining, California · 14227 days ago · 7 km deep · 62 km away
  20. 1.69 km W of Aspen Springs, California · 14228 days ago · 3 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc107431. Read Wed, Sep 30, 2026, 8:13 PM UTC.