California earthquakes

M1.8 earthquake 30 km NW of Benton, California

A magnitude 1.8 earthquake struck 30 km NW of Benton, California on Fri, Feb 20, 1987, 2:10 AM PST (10:10 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.1 13 km W of Aspen Springs, 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
1.8 (md), micro
Local time
UTC
1987-02-20 10:10:08 UTC
Depth
7.0 km (4.4 mi), shallow
Epicenter
37.996° N, 118.741° 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, 0.7 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
79°
Stations used
35

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 197 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.79 km WSW of Aspen Springs, California · 14442 days ago · 11 km deep · 53 km away
  2. 3.113 km W of Aspen Springs, California · 14442 days ago · 5 km deep · 51 km away
  3. 2.413 km W of Aspen Springs, California · 14442 days ago · 5 km deep · 52 km away
  4. 1.616 km NNE of Mesa, California · 14441 days ago · 7 km deep · 56 km away
  5. 1.717 km N of Dixon Lane-Meadow Creek, California · 14441 days ago · 5 km deep · 58 km away
  6. 1.67 km ENE of Mesa, California · 14441 days ago · 3 km deep · 66 km away
  7. 1.66 km ENE of Mesa, California · 14441 days ago · 1 km deep · 66 km away
  8. 1.913 km W of Aspen Springs, California · 14441 days ago · 4 km deep · 52 km away
  9. 2.315 km NE of Mesa, California · 14440 days ago · 8 km deep · 58 km away
  10. 1.80 km NNE of Mesa, California · 14440 days ago · 12 km deep · 66 km away
  11. 2.612 km SE of Mammoth Lakes, California · 14440 days ago · 6 km deep · 48 km away
  12. 1.630 km ENE of Big Creek, California · 14440 days ago · 13 km deep · 81 km away
  13. 1.630 km ENE of Big Creek, California · 14440 days ago · 13 km deep · 81 km away
  14. 1.613 km W of Aspen Springs, California · 14439 days ago · 6 km deep · 52 km away
  15. 1.613 km W of Aspen Springs, California · 14439 days ago · 5 km deep · 51 km away
  16. 1.613 km N of Dixon Lane-Meadow Creek, California · 14439 days ago · 6 km deep · 62 km away
  17. 1.613 km N of Dixon Lane-Meadow Creek, California · 14439 days ago · 6 km deep · 62 km away
  18. 1.612 km W of Aspen Springs, California · 14438 days ago · 5 km deep · 52 km away
  19. 2.023 km ESE of Yosemite Valley, California · 14438 days ago · 21 km deep · 65 km away
  20. 2.315 km ESE of Yosemite Valley, California · 14438 days ago · 27 km deep · 68 km away
  21. 1.610 km SSW of Aspen Springs, California · 14438 days ago · 3 km deep · 58 km away
  22. 1.88 km NNW of Benton, California · 14437 days ago · 3 km deep · 24 km away
  23. 1.720 km ENE of Mono City, California · 14437 days ago · 4 km deep · 22 km away
  24. 1.58 km NNW of Benton, California · 14437 days ago · 1 km deep · 24 km away
  25. 2.213 km N of Dixon Lane-Meadow Creek, California · 14437 days ago · 5 km deep · 62 km away
  26. 2.24 km SE of Swall Meadows, California · 14437 days ago · 10 km deep · 59 km away
  27. 1.67 km ESE of Mammoth Lakes, California · 14437 days ago · 3 km deep · 43 km away
  28. 1.6California-Nevada border region · 14436 days ago · 7 km deep · 50 km away
  29. 2.4California-Nevada border region · 14436 days ago · 6 km deep · 60 km away
  30. 1.714 km N of Dixon Lane-Meadow Creek, California · 14436 days ago · 6 km deep · 60 km away
  31. 1.513 km SE of Mammoth Lakes, California · 14436 days ago · 3 km deep · 50 km away
  32. 1.514 km N of Dixon Lane-Meadow Creek, California · 14435 days ago · 6 km deep · 61 km away
  33. 2.018 km ESE of Walker, California · 14434 days ago · 0 km deep · 69 km away
  34. 1.713 km NNW of Benton, California · 14434 days ago · 5 km deep · 19 km away
  35. 2.212 km SW of Aspen Springs, California · 14433 days ago · 9 km deep · 57 km away
  36. 1.67 km WNW of Aspen Springs, California · 14433 days ago · 4 km deep · 45 km away
  37. 1.516 km NNE of Mesa, California · 14432 days ago · 6 km deep · 55 km away
  38. 1.520 km NNE of Mesa, California · 14432 days ago · 4 km deep · 54 km away
  39. 2.016 km E of Sunny Slopes, California · 14432 days ago · 8 km deep · 50 km away
  40. 1.84 km E of Mammoth Lakes, California · 14432 days ago · 7 km deep · 41 km away
  41. 1.618 km ENE of Swall Meadows, California · 14432 days ago · 7 km deep · 51 km away
  42. 1.52 km WNW of Round Valley, California · 14432 days ago · 5 km deep · 64 km away
  43. 1.919 km ENE of Mono City, California · 14432 days ago · 7 km deep · 21 km away
  44. 1.913 km W of Aspen Springs, California · 14431 days ago · 5 km deep · 52 km away
  45. 2.116 km WSW of Aspen Springs, California · 14431 days ago · 3 km deep · 58 km away
  46. 1.715 km WSW of Aspen Springs, California · 14431 days ago · 4 km deep · 58 km away
  47. 3.710 km SSE of Walker, California · 14431 days ago · 3 km deep · 77 km away
  48. 1.816 km WSW of Aspen Springs, California · 14431 days ago · 3 km deep · 58 km away
  49. 1.821 km ENE of Swall Meadows, California · 14431 days ago · 3 km deep · 51 km away
  50. 1.819 km NNE of Mesa, California · 14430 days ago · 5 km deep · 54 km away
  51. 1.75 km S of Swall Meadows, California · 14430 days ago · 14 km deep · 61 km away
  52. 1.93 km N of Round Valley, California · 14430 days ago · 4 km deep · 62 km away
  53. 1.93 km N of Round Valley, California · 14430 days ago · 5 km deep · 62 km away
  54. 1.711 km NNE of Dixon Lane-Meadow Creek, California · 14430 days ago · 3 km deep · 66 km away
  55. 1.617 km ENE of Sunny Slopes, California · 14429 days ago · 7 km deep · 49 km away
  56. 2.09 km NNE of Dixon Lane-Meadow Creek, California · 14429 days ago · 8 km deep · 67 km away
  57. 2.411 km WNW of Bridgeport, California · 14428 days ago · 5 km deep · 63 km away
  58. 2.010 km ENE of Big Pine, California · 14428 days ago · 5 km deep · 100 km away
  59. 1.58 km NE of Dixon Lane-Meadow Creek, California · 14428 days ago · 4 km deep · 69 km away
  60. 1.612 km NNE of Dixon Lane-Meadow Creek, California · 14428 days ago · 3 km deep · 64 km away

The first 60 of 197.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc95115. Read Tue, Sep 22, 2026, 9:32 PM UTC.