California earthquakes

M1.9 earthquake 9 km NNW of Cassel, California

A magnitude 1.9 earthquake struck 9 km NNW of Cassel, California on Fri, Oct 25, 1985, 7:02 AM PDT (14:02 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M3.0 5 km S of Millville, 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1985-10-25 14:02:02 UTC
Depth
16.3 km (10.1 mi), shallow
Epicenter
40.994° N, 121.594° 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 1.0 km horizontally, 2.6 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
183°, poorly surrounded by stations
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 23 in the 30 days before it.

After

  1. 2.229 km SE of Adin, California · 14947 days ago · 3 km deep · 74 km away
  2. 1.913 km E of Mineral, California · 14946 days ago · 3 km deep · 71 km away
  3. 1.712 km SSW of Old Station, California · 14946 days ago · 3 km deep · 47 km away
  4. 2.61 km ESE of Lakehead, California · 14944 days ago · 19 km deep · 65 km away
  5. 2.81 km ENE of Lakehead, California · 14944 days ago · 18 km deep · 65 km away
  6. 1.64 km SSW of Prattville, California · 14942 days ago · 6 km deep · 98 km away
  7. 1.89 km W of Lake Almanor West, California · 14936 days ago · 10 km deep · 88 km away
  8. 1.810 km NNE of Mineral, California · 14934 days ago · 7 km deep · 63 km away
  9. 1.910 km NNE of Mineral, California · 14934 days ago · 6 km deep · 62 km away
  10. 1.934 km NW of Susanville, California · 14927 days ago · 3 km deep · 68 km away
  11. 2.332 km NNW of Susanville, California · 14925 days ago · 4 km deep · 72 km away
  12. 1.85 km S of Mount Shasta, California · 14925 days ago · 0 km deep · 67 km away
  13. 1.915 km W of Manton, California · 14921 days ago · 28 km deep · 74 km away
  14. 1.816 km N of Big Bend, California · 14918 days ago · 3 km deep · 32 km away
  15. 1.712 km SSW of Lake Almanor West, California · 14914 days ago · 2 km deep · 99 km away
  16. 3.05 km S of Millville, California · 14913 days ago · 4 km deep · 73 km away
  17. 2.115 km NNW of Shingletown, California · 14912 days ago · 9 km deep · 51 km away
  18. 1.95 km N of Lakehead, California · 14907 days ago · 8 km deep · 66 km away
  19. 2.113 km NNE of Mineral, California · 14901 days ago · 3 km deep · 59 km away
  20. 1.713 km NNE of Old Station, California · 14891 days ago · 3 km deep · 30 km away

Before

  1. 1.59 km NW of Chester, California · 14956 days ago · 8 km deep · 74 km away
  2. 1.614 km NNW of Mineral, California · 14956 days ago · 4 km deep · 59 km away
  3. 1.514 km NNE of Mineral, California · 14956 days ago · 12 km deep · 59 km away
  4. 3.09 km WNW of Chester, California · 14957 days ago · 0 km deep · 75 km away
  5. 1.524 km NNW of Susanville, California · 14960 days ago · 2 km deep · 79 km away
  6. 2.26 km W of Mineral, California · 14962 days ago · 2 km deep · 72 km away
  7. 1.56 km N of Old Station, California · 14964 days ago · 16 km deep · 32 km away
  8. 1.612 km ESE of Grenada, California · 14964 days ago · 3 km deep · 95 km away
  9. 1.713 km ESE of Grenada, California · 14964 days ago · 3 km deep · 93 km away
  10. 2.98 km N of Old Station, California · 14967 days ago · 7 km deep · 30 km away
  11. 2.25km S of Likely, CA · 14970 days ago · 14 km deep · 94 km away
  12. 2.313 km SSW of Likely, California · 14970 days ago · 22 km deep · 86 km away
  13. 2.27 km NE of Redding, California · 14972 days ago · 29 km deep · 74 km away
  14. 2.115 km SE of McCloud, California · 14974 days ago · 11 km deep · 39 km away
  15. 1.52 km ESE of Prattville, California · 14975 days ago · 14 km deep · 97 km away
  16. 1.813 km N of French Gulch, California · 14975 days ago · 40 km deep · 89 km away
  17. 2.12 km ESE of Hamilton Branch, California · 14976 days ago · 7 km deep · 93 km away
  18. 1.52 km ESE of Paynes Creek, California · 14977 days ago · 9 km deep · 78 km away
  19. 1.54 km NNW of Lake Almanor Peninsula, California · 14977 days ago · 16 km deep · 84 km away
  20. 1.93 km SE of Prattville, California · 14980 days ago · 3 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc57643. Read Thu, Oct 1, 2026, 11:52 AM UTC.