California earthquakes

M2.0 earthquake 2 km S of Graeagle, California

A magnitude 2.0 earthquake struck 2 km S of Graeagle, California on Tue, Mar 17, 1987, 8:35 PM PST (04:35 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.1 14 km S of Kingvale, 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
1987-03-18 04:35:15 UTC
Depth
5.7 km (3.5 mi), shallow
Epicenter
39.740° N, 120.619° 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 0.7 km horizontally, 4.4 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
154°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.615 km NNW of Truckee, California · 14442 days ago · 6 km deep · 44 km away
  2. 1.714 km WSW of Lake Almanor West, California · 14434 days ago · 6 km deep · 79 km away
  3. 2.36 km SW of Cromberg, California · 14426 days ago · -2 km deep · 13 km away
  4. 1.512 km ESE of Mineral, California · 14424 days ago · 3 km deep · 95 km away
  5. 3.114 km S of Kingvale, California · 14423 days ago · 0 km deep · 63 km away
  6. 1.715 km S of Kingvale, California · 14423 days ago · -1 km deep · 64 km away
  7. 1.83 km ESE of Chester, California · 14422 days ago · 6 km deep · 79 km away
  8. 2.110 km S of Truckee, California · 14418 days ago · 8 km deep · 67 km away
  9. 2.24 km NW of Belden, California · 14416 days ago · 4 km deep · 65 km away
  10. 1.52 km W of Soda Springs, California · 14414 days ago · 5 km deep · 50 km away
  11. 2.311 km SE of Sierraville, California · 14414 days ago · -1 km deep · 38 km away
  12. 1.911 km SE of Sierraville, California · 14414 days ago · -2 km deep · 39 km away
  13. 3.11 km WNW of Palermo, California · 14413 days ago · 11 km deep · 87 km away
  14. 2.312 km N of Truckee, California · 14405 days ago · 6 km deep · 51 km away
  15. 1.85 km NE of Clipper Mills, California · 14402 days ago · 13 km deep · 47 km away
  16. 2.011 km NNE of Butte Meadows, California · 14399 days ago · 7 km deep · 90 km away
  17. 1.81 km NW of Lake Almanor Country Club, California · 14397 days ago · 3 km deep · 74 km away
  18. 2.13 km E of Truckee, California · 14396 days ago · 7 km deep · 61 km away
  19. 1.95 km NNE of Truckee, California · 14392 days ago · 8 km deep · 57 km away

Before

  1. 2.610 km NNE of Clipper Mills, California · 14447 days ago · 16 km deep · 43 km away
  2. 1.66 km WSW of Lake Almanor West, California · 14451 days ago · 4 km deep · 76 km away
  3. 2.25 km WSW of Prattville, California · 14451 days ago · 6 km deep · 71 km away
  4. 2.26 km SSW of Lake Almanor West, California · 14451 days ago · 6 km deep · 72 km away
  5. 2.38 km NE of Clipper Mills, California · 14452 days ago · 11 km deep · 44 km away
  6. 1.80 km SSW of Sierraville, California · 14453 days ago · 7 km deep · 27 km away
  7. 2.79 km NE of Clipper Mills, California · 14455 days ago · 12 km deep · 43 km away
  8. 2.27 km S of Spring Garden, California · 14464 days ago · 12 km deep · 17 km away
  9. 2.53 km SE of Lake Davis, California · 14468 days ago · 4 km deep · 18 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc10084009. Read Thu, Oct 1, 2026, 9:43 AM UTC.