California earthquakes

M2.3 earthquake 14 km SW of Durham, California

A magnitude 2.3 earthquake struck 14 km SW of Durham, California on Wed, May 13, 1987, 8:47 AM PDT (15:47 UTC), 27 km (16 mi) below the surface.

A larger quake followed: M3.2 23 km NE of Potter Valley, California. This one was a foreshock.

Durham 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
2.3 (md), micro
Local time
UTC
1987-05-13 15:47:40 UTC
Depth
26.5 km (16.5 mi), shallow
Epicenter
39.541° N, 121.909° 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 0.6 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
208°, poorly surrounded by stations
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.714 km ESE of Hidden Valley Lake, California · 14385 days ago · 1 km deep · 99 km away
  2. 2.220 km NE of Potter Valley, California · 14385 days ago · 7 km deep · 88 km away
  3. 1.62 km SSW of Sutter, California · 14382 days ago · 5 km deep · 47 km away
  4. 2.011 km W of Richvale, California · 14378 days ago · 5 km deep · 5 km away
  5. 1.815 km N of Princeton, California · 14378 days ago · 20 km deep · 8 km away
  6. 1.5Northern California · 14377 days ago · 8 km deep · 94 km away
  7. 1.716 km NNE of Upper Lake, California · 14370 days ago · 4 km deep · 83 km away
  8. 2.37 km SSW of Hamilton City, California · 14367 days ago · 17 km deep · 19 km away
  9. 1.86 km SSW of Sutter, California · 14367 days ago · 5 km deep · 50 km away
  10. 1.817 km ENE of Potter Valley, California · 14363 days ago · 7 km deep · 90 km away
  11. 2.10 km WNW of Butte Meadows, California · 14361 days ago · 16 km deep · 67 km away
  12. 1.613 km NNW of Belden, California · 14358 days ago · 3 km deep · 82 km away
  13. 1.69 km E of Hidden Valley Lake, California · 14357 days ago · 6 km deep · 93 km away
  14. 1.920 km WNW of Butte Meadows, California · 14348 days ago · 8 km deep · 71 km away
  15. 2.017 km NNE of Angwin, California · 14347 days ago · 9 km deep · 99 km away
  16. 1.521 km ENE of Potter Valley, California · 14345 days ago · 9 km deep · 84 km away
  17. 2.115 km S of Hamilton City, California · 14338 days ago · 10 km deep · 9 km away
  18. 3.223 km NE of Potter Valley, California · 14337 days ago · 9 km deep · 89 km away
  19. 1.69 km W of Lake Almanor West, California · 14336 days ago · 7 km deep · 91 km away
  20. 2.59 km NW of Stonyford, California · 14335 days ago · 6 km deep · 63 km away
  21. 2.39 km W of Manton, California · 14333 days ago · 8 km deep · 99 km away
  22. 1.62 km NE of Lake Almanor West, California · 14330 days ago · 6 km deep · 100 km away
  23. 2.29 km SW of Prattville, California · 14329 days ago · 4 km deep · 88 km away

Before

  1. 1.918 km NE of Upper Lake, California · 14388 days ago · 8 km deep · 79 km away
  2. 1.619 km N of Upper Lake, California · 14389 days ago · 4 km deep · 86 km away
  3. 1.73 km SSW of Hamilton City, California · 14389 days ago · 13 km deep · 21 km away
  4. 1.83 km S of Hamilton City, California · 14389 days ago · 10 km deep · 21 km away
  5. 2.011 km NNE of Butte Meadows, California · 14398 days ago · 7 km deep · 79 km away
  6. 1.85 km NE of Clipper Mills, California · 14401 days ago · 13 km deep · 68 km away
  7. 1.87 km NE of Upper Lake, California · 14401 days ago · 6 km deep · 89 km away
  8. 1.615 km ENE of Potter Valley, California · 14402 days ago · 6 km deep · 91 km away
  9. 1.512 km NE of Lucerne, California · 14407 days ago · 13 km deep · 80 km away
  10. 3.11 km WNW of Palermo, California · 14412 days ago · 11 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc100346. Read Wed, Sep 30, 2026, 12:01 PM UTC.