California earthquakes

M2.0 earthquake 2 km W of Cassel, California

A magnitude 2.0 earthquake struck 2 km W of Cassel, California on Thu, Oct 22, 1987, 11:54 AM PDT (18:54 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.8 13 km SE of Trinity Center, 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
2.0 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1987-10-22 18:54:26 UTC
Depth
3.2 km (2.0 mi), shallow
Epicenter
40.917° N, 121.579° 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, 5.5 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
159°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.64 km ESE of Chester, California · 14221 days ago · 7 km deep · 78 km away
  2. 2.33 km W of Palo Cedro, California · 14211 days ago · 18 km deep · 71 km away
  3. 1.63 km SW of Palo Cedro, California · 14210 days ago · 8 km deep · 71 km away
  4. 2.42 km NNW of French Gulch, California · 14209 days ago · 4 km deep · 93 km away
  5. 1.913 km W of Chester, California · 14209 days ago · 8 km deep · 72 km away
  6. 2.215 km E of Lakehead, California · 14208 days ago · 3 km deep · 52 km away
  7. 2.117 km NW of Chester, California · 14203 days ago · 1 km deep · 58 km away
  8. 3.813 km SE of Trinity Center, California · 14203 days ago · 4 km deep · 84 km away
  9. 1.716 km E of Big Bend, California · 14200 days ago · 14 km deep · 18 km away
  10. 1.9Northern California · 14198 days ago · 3 km deep · 50 km away
  11. 1.817 km SE of Fall River Mills, California · 14197 days ago · 14 km deep · 25 km away
  12. 1.69 km N of Montgomery Creek, California · 14192 days ago · 12 km deep · 30 km away
  13. 1.64 km NW of Montgomery Creek, California · 14191 days ago · 13 km deep · 33 km away
  14. 1.88 km N of Montgomery Creek, California · 14191 days ago · 15 km deep · 29 km away
  15. 1.99 km N of Montgomery Creek, California · 14189 days ago · 15 km deep · 29 km away
  16. 1.85 km SE of Canyondam, California · 14186 days ago · -1 km deep · 99 km away
  17. 1.81 km N of Old Station, California · 14184 days ago · 6 km deep · 28 km away
  18. 2.014 km WSW of Lake Almanor West, California · 14182 days ago · 6 km deep · 85 km away
  19. 2.03 km SSW of Palo Cedro, California · 14180 days ago · 9 km deep · 71 km away
  20. 1.75 km N of McCloud, California · 14179 days ago · 5 km deep · 64 km away
  21. 1.69 km NNW of Big Bend, California · 14173 days ago · 4 km deep · 37 km away
  22. 2.25 km WSW of Greenville, California · 14171 days ago · 0 km deep · 100 km away
  23. 2.09 km NE of Chester, California · 14171 days ago · -2 km deep · 72 km away
  24. 2.04 km NNW of Palo Cedro, California · 14170 days ago · 4 km deep · 67 km away
  25. 1.937 km NW of Susanville, California · 14169 days ago · 0 km deep · 62 km away

Before

  1. 2.510 km NW of Belden, California · 14225 days ago · 13 km deep · 97 km away
  2. 2.012 km NNW of French Gulch, California · 14238 days ago · 4 km deep · 94 km away
  3. 1.6Northern California · 14244 days ago · 3 km deep · 96 km away
  4. 2.511 km ENE of Bend, California · 14245 days ago · 15 km deep · 81 km away
  5. 2.711 km ENE of Bend, California · 14245 days ago · 16 km deep · 81 km away
  6. 2.19 km ENE of Bend, California · 14251 days ago · 19 km deep · 82 km away
  7. 2.012 km ENE of Bend, California · 14252 days ago · 14 km deep · 80 km away
  8. 1.513 km NE of Bend, California · 14252 days ago · 8 km deep · 79 km away
  9. 1.612 km ENE of Bend, California · 14252 days ago · 11 km deep · 79 km away
  10. 1.914 km NNE of Shingletown, California · 14252 days ago · 16 km deep · 40 km away
  11. 2.311 km ENE of Bend, California · 14253 days ago · 16 km deep · 81 km away
  12. 1.62 km NNW of Edgewood, California · 14254 days ago · 6 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc107513. Read Fri, Oct 2, 2026, 1:28 AM UTC.