California earthquakes

M1.7 earthquake 8 km WSW of Red Bluff, California

A magnitude 1.7 earthquake struck 8 km WSW of Red Bluff, California on Mon, May 13, 1985, 11:43 PM PDT (06:43 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M2.6 13 km ESE of Mineral, California. This one was a foreshock.

Red Bluff 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 (md), micro
Local time
UTC
1985-05-14 06:43:10 UTC
Depth
17.0 km (10.6 mi), shallow
Epicenter
40.145° N, 122.327° 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 0.7 km horizontally, 5.8 km in depth
Depth from
From location
Station coverage gap
227°, poorly surrounded by stations
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 35 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 2.613 km ESE of Mineral, California · 15106 days ago · 8 km deep · 77 km away
  2. 1.811 km WNW of Lakehead, California · 15105 days ago · 4 km deep · 89 km away
  3. 1.716 km NE of Mineral, California · 15102 days ago · 4 km deep · 80 km away
  4. 1.514 km S of Hamilton City, California · 15102 days ago · 5 km deep · 66 km away
  5. 2.00 km NE of Butte Meadows, California · 15099 days ago · 3 km deep · 67 km away
  6. 1.78 km WSW of Lake Almanor West, California · 15093 days ago · 11 km deep · 88 km away
  7. 2.013 km NNW of Belden, California · 15093 days ago · 3 km deep · 85 km away
  8. 1.73 km WNW of Chester, California · 15090 days ago · -1 km deep · 92 km away
  9. 1.814 km NNE of Mineral, California · 15087 days ago · 3 km deep · 78 km away
  10. 1.930 km NE of Covelo, California · 15087 days ago · 3 km deep · 60 km away
  11. 2.624 km WNW of Paskenta, California · 15087 days ago · -1 km deep · 47 km away
  12. 1.722 km NE of Potter Valley, California · 15085 days ago · 7 km deep · 91 km away
  13. 1.915 km E of Cottonwood, California · 15081 days ago · 11 km deep · 34 km away
  14. 3.014 km WSW of Hayfork, California · 15081 days ago · 33 km deep · 94 km away
  15. 2.56 km N of Millville, California · 15079 days ago · 23 km deep · 53 km away
  16. 2.310 km NE of Vina, California · 15077 days ago · -1 km deep · 35 km away
  17. 1.73 km NNW of Hamilton City, California · 15076 days ago · 10 km deep · 49 km away
  18. 1.85 km E of Redding, California · 15075 days ago · 19 km deep · 49 km away
  19. 1.614 km NNW of Chester, California · 15075 days ago · 6 km deep · 95 km away
  20. 1.56 km WNW of Lake Almanor West, California · 15073 days ago · 9 km deep · 90 km away
  21. 3.025 km WNW of Paskenta, California · 15070 days ago · -1 km deep · 48 km away
  22. 2.316 km SSW of Paynes Creek, California · 15070 days ago · 10 km deep · 28 km away
  23. 1.66 km NNE of Cohasset, California · 15067 days ago · 3 km deep · 57 km away
  24. 2.210 km NNW of Stonyford, California · 15064 days ago · 7 km deep · 79 km away
  25. 2.310 km NNW of Stonyford, California · 15063 days ago · 4 km deep · 79 km away
  26. 1.77 km SSW of Lakehead, California · 15061 days ago · 4 km deep · 78 km away
  27. 1.6Northern California · 15061 days ago · 25 km deep · 59 km away
  28. 1.613 km NE of Vina, California · 15060 days ago · 11 km deep · 37 km away
  29. 1.812 km ESE of Mineral, California · 15057 days ago · 9 km deep · 76 km away
  30. 2.18 km N of Princeton, California · 15053 days ago · 0 km deep · 79 km away
  31. 2.28 km ESE of Willows, California · 15053 days ago · 14 km deep · 75 km away
  32. 2.023 km SE of Covelo, California · 15052 days ago · 4 km deep · 86 km away
  33. 1.87 km SSW of Hat Creek, California · 15050 days ago · 2 km deep · 95 km away
  34. 2.28 km WSW of Hamilton City, California · 15049 days ago · 16 km deep · 53 km away
  35. 1.728 km NE of Potter Valley, California · 15048 days ago · 8 km deep · 86 km away

Before

  1. 2.412 km ENE of Shingletown, California · 15108 days ago · 35 km deep · 64 km away
  2. 2.31 km SW of Lake Almanor West, California · 15110 days ago · 3 km deep · 95 km away
  3. 1.912 km ENE of Bend, California · 15115 days ago · 7 km deep · 28 km away
  4. 2.231 km WSW of Paskenta, California · 15116 days ago · 9 km deep · 63 km away
  5. 1.710 km E of Red Bluff, California · 15117 days ago · 3 km deep · 18 km away
  6. 1.710 km ESE of Covelo, California · 15130 days ago · 1 km deep · 80 km away
  7. 2.17 km NNW of Richvale, California · 15133 days ago · 5 km deep · 80 km away
  8. 2.010 km E of Red Bluff, California · 15134 days ago · 4 km deep · 18 km away
  9. 2.312 km ESE of Bend, California · 15134 days ago · 17 km deep · 24 km away
  10. 2.913 km NE of Proberta, California · 15134 days ago · -1 km deep · 21 km away
  11. 1.812 km E of Red Bluff, California · 15135 days ago · 1 km deep · 20 km away
  12. 2.810 km E of Red Bluff, California · 15135 days ago · 10 km deep · 18 km away
  13. 2.07 km NE of Covelo, California · 15135 days ago · 5 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc48755. Read Tue, Sep 22, 2026, 4:10 PM UTC.