California earthquakes

M3.0 earthquake 9 km WNW of Chester, California

A magnitude 3.0 earthquake struck 9 km WNW of Chester, California on Sat, Oct 19, 1985, 3:20 AM PDT (10:20 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.3 0 km WSW of Tehama, California. This one was a foreshock.

Chester 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
3.0 (ml), minor
Local time
UTC
1985-10-19 10:20:51 UTC
Depth
-0.3 km (-0.2 mi), shallow
Epicenter
40.348° N, 121.333° 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 0.5 km horizontally, 1.5 km in depth
Depth from
From location
Station coverage gap
135°
Stations used
17

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 28 in the 30 days before it.

After

  1. 1.514 km NNE of Mineral, California · 14947 days ago · 12 km deep · 21 km away
  2. 1.614 km NNW of Mineral, California · 14947 days ago · 4 km deep · 30 km away
  3. 1.59 km NW of Chester, California · 14947 days ago · 8 km deep · 4 km away
  4. 2.25 km NNW of Belden, California · 14945 days ago · 8 km deep · 33 km away
  5. 2.31 km NNE of Susanville, California · 14945 days ago · 0 km deep · 59 km away
  6. 1.83 km SSW of Susanville, California · 14944 days ago · 2 km deep · 56 km away
  7. 2.513 km NE of Lake Davis, California · 14943 days ago · 10 km deep · 92 km away
  8. 2.811 km W of La Porte, California · 14943 days ago · 11 km deep · 75 km away
  9. 2.410 km SSE of Hamilton City, California · 14943 days ago · 21 km deep · 94 km away
  10. 1.99 km NNW of Cassel, California · 14942 days ago · 16 km deep · 75 km away
  11. 2.34 km WSW of Chico, California · 14942 days ago · 22 km deep · 85 km away
  12. 2.229 km SE of Adin, California · 14939 days ago · 3 km deep · 89 km away
  13. 1.913 km E of Mineral, California · 14938 days ago · 3 km deep · 9 km away
  14. 1.712 km SSW of Old Station, California · 14938 days ago · 3 km deep · 29 km away
  15. 1.90 km N of Susanville, California · 14937 days ago · -1 km deep · 58 km away
  16. 2.05 km SSE of Red Bluff, California · 14935 days ago · 6 km deep · 78 km away
  17. 1.64 km SSW of Prattville, California · 14933 days ago · 6 km deep · 23 km away
  18. 3.30 km WSW of Tehama, California · 14933 days ago · 71 km deep · 77 km away
  19. 1.89 km W of Lake Almanor West, California · 14928 days ago · 10 km deep · 13 km away
  20. 1.810 km NNE of Mineral, California · 14925 days ago · 7 km deep · 20 km away
  21. 1.910 km NNE of Mineral, California · 14925 days ago · 6 km deep · 20 km away
  22. 3.08 km WSW of Paradise, California · 14921 days ago · 28 km deep · 76 km away
  23. 2.77 km ENE of Nord, California · 14920 days ago · 14 km deep · 76 km away
  24. 1.934 km NW of Susanville, California · 14918 days ago · 3 km deep · 48 km away
  25. 2.332 km NNW of Susanville, California · 14916 days ago · 4 km deep · 55 km away
  26. 2.36 km ENE of Nord, California · 14916 days ago · 18 km deep · 77 km away
  27. 1.915 km W of Manton, California · 14913 days ago · 28 km deep · 61 km away
  28. 1.62 km NNW of Greenville, California · 14911 days ago · 0 km deep · 38 km away
  29. 1.712 km SSW of Lake Almanor West, California · 14906 days ago · 2 km deep · 24 km away
  30. 3.05 km S of Millville, California · 14904 days ago · 4 km deep · 73 km away
  31. 2.115 km NNW of Shingletown, California · 14904 days ago · 9 km deep · 61 km away
  32. 2.55 km WNW of Plumas Eureka (historical), California · 14896 days ago · 2 km deep · 79 km away
  33. 1.74 km WNW of Greenville, California · 14894 days ago · 0 km deep · 36 km away
  34. 2.113 km NNE of Mineral, California · 14893 days ago · 3 km deep · 23 km away
  35. 2.33 km SE of Canyondam, California · 14890 days ago · 4 km deep · 33 km away

Before

  1. 2.03 km WNW of Greenville, California · 14949 days ago · 0 km deep · 36 km away
  2. 1.84 km S of Oroville East, California · 14949 days ago · 0 km deep · 98 km away
  3. 1.524 km NNW of Susanville, California · 14952 days ago · 2 km deep · 53 km away
  4. 2.010 km NE of Greenville, California · 14953 days ago · 7 km deep · 44 km away
  5. 2.26 km W of Mineral, California · 14953 days ago · 2 km deep · 29 km away
  6. 2.015 km N of Lake Davis, California · 14954 days ago · 4 km deep · 83 km away
  7. 1.56 km N of Old Station, California · 14955 days ago · 16 km deep · 44 km away
  8. 2.03 km ENE of Canyondam, California · 14958 days ago · 3 km deep · 32 km away
  9. 1.814 km WNW of Cohasset, California · 14958 days ago · 5 km deep · 61 km away
  10. 2.98 km N of Old Station, California · 14958 days ago · 7 km deep · 46 km away
  11. 2.27 km NE of Redding, California · 14963 days ago · 29 km deep · 89 km away
  12. 2.19 km NE of Vina, California · 14966 days ago · 0 km deep · 68 km away
  13. 1.52 km ESE of Prattville, California · 14966 days ago · 14 km deep · 24 km away
  14. 2.12 km ESE of Hamilton Branch, California · 14967 days ago · 7 km deep · 25 km away
  15. 1.52 km ESE of Paynes Creek, California · 14968 days ago · 9 km deep · 47 km away
  16. 1.54 km NNW of Lake Almanor Peninsula, California · 14968 days ago · 16 km deep · 15 km away
  17. 2.23 km ENE of Canyondam, California · 14971 days ago · 3 km deep · 32 km away
  18. 2.15 km NNE of Belden, California · 14971 days ago · 2 km deep · 34 km away
  19. 1.93 km SE of Prattville, California · 14972 days ago · 3 km deep · 25 km away
  20. 1.63 km SE of Prattville, California · 14972 days ago · 4 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc57262 (also filed as usp0002kxv). Read Tue, Sep 22, 2026, 8:45 PM UTC.