California earthquakes

M2.8 earthquake 19 km SW of Edgewood, California

A magnitude 2.8 earthquake struck 19 km SW of Edgewood, California on Sat, Dec 28, 1985, 10:08 PM PST (06:08 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.2 4 km ESE of Bella Vista, 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
2.8 (md), micro
Local time
UTC
1985-12-29 06:08:28 UTC
Depth
1.3 km (0.8 mi), shallow
Epicenter
41.328° N, 122.596° 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, 8.6 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
209°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 3.24 km ESE of Bella Vista, California · 14875 days ago · 19 km deep · 86 km away
  2. 2.37 km ESE of Millville, California · 14871 days ago · -1 km deep · 98 km away
  3. 2.918 km WNW of Junction City, California · 14866 days ago · 28 km deep · 81 km away
  4. 1.911 km NE of Mountain Gate, California · 14863 days ago · 17 km deep · 68 km away
  5. 2.013 km NE of Willow Creek, California · 14857 days ago · -1 km deep · 84 km away
  6. 1.86 km ESE of Bella Vista, California · 14849 days ago · 19 km deep · 87 km away
  7. 1.68 km N of Cassel, California · 14845 days ago · 12 km deep · 95 km away
  8. 2.09 km W of Burney, California · 14833 days ago · 14 km deep · 85 km away
  9. 2.55 km E of Bella Vista, California · 14822 days ago · 22 km deep · 85 km away
  10. 1.911 km NE of Trinity Village, California · 14818 days ago · 12 km deep · 82 km away

Before

  1. 1.620 km E of Grenada, California · 14882 days ago · 5 km deep · 42 km away
  2. 2.212 km NNE of Willow Creek, California · 14885 days ago · 30 km deep · 88 km away
  3. 2.527km E of Willow Creek, CA · 14896 days ago · 29 km deep · 76 km away
  4. 1.95 km N of Lakehead, California · 14898 days ago · 8 km deep · 46 km away
  5. 2.433 km NE of Trinity Village, California · 14900 days ago · 30 km deep · 61 km away
  6. 1.821 km NE of Willow Creek, California · 14901 days ago · 4 km deep · 76 km away
  7. 2.115 km NNW of Shingletown, California · 14903 days ago · 9 km deep · 95 km away
  8. 3.05 km S of Millville, California · 14904 days ago · 4 km deep · 99 km away
  9. 1.710 km WNW of Trinity Center, California · 14904 days ago · 4 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc62396. Read Tue, Sep 22, 2026, 4:21 PM UTC.