California earthquakes

M1.6 earthquake 15 km NNW of Truckee, California

A magnitude 1.6 earthquake struck 15 km NNW of Truckee, California on Wed, Mar 18, 1987, 4:02 AM PST (12:02 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M2.3 6 km SW of Cromberg, 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.

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The earthquake

Magnitude
1.6 (md), micro
Local time
UTC
1987-03-18 12:02:41 UTC
Depth
5.6 km (3.5 mi), shallow
Epicenter
39.460° N, 120.257° 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 0.8 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
137°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.69 km WNW of Topaz Lake, Nevada · 14425 days ago · 0 km deep · 97 km away
  2. 2.36 km SW of Cromberg, California · 14419 days ago · -2 km deep · 57 km away
  3. 3.114 km S of Kingvale, California · 14416 days ago · 0 km deep · 35 km away
  4. 1.715 km S of Kingvale, California · 14416 days ago · -1 km deep · 34 km away
  5. 2.310 km E of Markleeville, California · 14416 days ago · -1 km deep · 100 km away
  6. 2.110 km S of Truckee, California · 14411 days ago · 8 km deep · 25 km away
  7. 2.49 km E of Markleeville, California · 14410 days ago · 2 km deep · 100 km away
  8. 1.52 km W of Soda Springs, California · 14407 days ago · 5 km deep · 20 km away
  9. 2.311 km SE of Sierraville, California · 14407 days ago · -1 km deep · 6 km away
  10. 1.911 km SE of Sierraville, California · 14407 days ago · -2 km deep · 6 km away
  11. 3.10 km NW of Mesa Vista, California · 14403 days ago · -1 km deep · 82 km away
  12. 1.65 km S of Markleeville, California · 14401 days ago · 1 km deep · 100 km away
  13. 2.312 km N of Truckee, California · 14398 days ago · 6 km deep · 8 km away
  14. 2.911 km E of Kirkwood, California · 14395 days ago · -2 km deep · 89 km away
  15. 1.812 km E of Kirkwood, California · 14395 days ago · 1 km deep · 88 km away
  16. 1.85 km NE of Clipper Mills, California · 14394 days ago · 13 km deep · 74 km away
  17. 2.13 km E of Truckee, California · 14389 days ago · 7 km deep · 17 km away
  18. 1.95 km NNE of Truckee, California · 14385 days ago · 8 km deep · 13 km away

Before

  1. 2.02 km S of Graeagle, California · 14435 days ago · 6 km deep · 44 km away
  2. 1.812 km ESE of Kirkwood, California · 14437 days ago · -1 km deep · 93 km away
  3. 2.610 km NNE of Clipper Mills, California · 14440 days ago · 16 km deep · 74 km away
  4. 2.38 km NE of Clipper Mills, California · 14445 days ago · 11 km deep · 74 km away
  5. 1.80 km SSW of Sierraville, California · 14446 days ago · 7 km deep · 17 km away
  6. 2.79 km NE of Clipper Mills, California · 14447 days ago · 12 km deep · 73 km away
  7. 2.35 km SSE of Markleeville, California · 14456 days ago · 5 km deep · 100 km away
  8. 2.27 km S of Spring Garden, California · 14457 days ago · 12 km deep · 60 km away
  9. 2.53 km SE of Lake Davis, California · 14461 days ago · 4 km deep · 46 km away
  10. 2.25 km SSW of Markleeville, California · 14462 days ago · -2 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1148310. Read Thu, Sep 24, 2026, 5:57 AM UTC.