California earthquakes

M2.1 earthquake 10 km NW of Truckee, California

A magnitude 2.1 earthquake struck 10 km NW of Truckee, California on Fri, Apr 3, 1981, 3:10 PM PST (23:10 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M2.4 8 km NW of Truckee, California. This one was a foreshock.

Truckee forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
2.1 (md), micro
Local time
UTC
1981-04-03 23:10:34 UTC
Depth
11.8 km (7.3 mi), shallow
Epicenter
39.402° N, 120.259° 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 1.4 km horizontally, 3.2 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
265°, poorly surrounded by stations
Stations used
18

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 19 in the 30 days before it.

After

  1. 2.48 km NW of Truckee, California · 16603 days ago · 13 km deep · 2 km away
  2. 2.218 km ENE of Pollock Pines, California · 16599 days ago · 3 km deep · 64 km away
  3. 1.711 km NW of Truckee, California · 16597 days ago · 4 km deep · 1 km away
  4. 2.013 km SW of Kingvale, California · 16595 days ago · 16 km deep · 31 km away
  5. 2.27 km WNW of Sierra City, California · 16586 days ago · 10 km deep · 44 km away
  6. 4.210 km WSW of Virginia City, Nevada · 16582 days ago · 10 km deep · 45 km away
  7. 2.70 km WSW of Clipper Mills, California · 16566 days ago · 11 km deep · 79 km away
  8. 2.53 km SW of Clipper Mills, California · 16564 days ago · 12 km deep · 80 km away
  9. 2.50 km SSW of Clipper Mills, California · 16560 days ago · 12 km deep · 78 km away
  10. 2.91 km SW of Clipper Mills, California · 16555 days ago · 14 km deep · 80 km away

Before

  1. 3.19 km NNW of Truckee, California · 16609 days ago · 9 km deep · 4 km away
  2. 2.08 km WNW of Truckee, California · 16610 days ago · 25 km deep · 6 km away
  3. 2.99 km NW of Truckee, California · 16614 days ago · 14 km deep · 2 km away
  4. 1.710 km NNW of Truckee, California · 16615 days ago · 13 km deep · 1 km away
  5. 2.39 km NNW of Truckee, California · 16615 days ago · 11 km deep · 2 km away
  6. 3.88 km NNW of Truckee, California · 16615 days ago · 5 km deep · 4 km away
  7. 2.39 km NNW of Truckee, California · 16615 days ago · 14 km deep · 2 km away
  8. 2.29 km NNW of Truckee, California · 16615 days ago · 12 km deep · 4 km away
  9. 2.011 km N of Truckee, California · 16615 days ago · 7 km deep · 8 km away
  10. 2.011 km NNW of Truckee, California · 16615 days ago · 11 km deep · 1 km away
  11. 2.211 km NW of Truckee, California · 16615 days ago · 7 km deep · 1 km away
  12. 3.58 km NNW of Truckee, California · 16615 days ago · 9 km deep · 3 km away
  13. 1.69 km WNW of Plumas Eureka (historical), California · 16617 days ago · 7 km deep · 64 km away
  14. 1.63 km SSW of Soda Springs, California · 16628 days ago · 15 km deep · 17 km away
  15. 1.89 km SE of Alta, California · 16629 days ago · 0 km deep · 51 km away
  16. 1.94 km WNW of Alpine Village, California · 16629 days ago · 11 km deep · 76 km away
  17. 1.810 km NNE of Bear Valley, California · 16635 days ago · 13 km deep · 97 km away
  18. 1.811 km NNE of Bear Valley, California · 16635 days ago · 0 km deep · 97 km away
  19. 1.59 km WSW of Markleeville, California · 16638 days ago · 2 km deep · 89 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1062067. Read Tue, Sep 22, 2026, 9:38 PM UTC.