M 4.2 - 15 km E of Alzada, Montana
- 2009-09-25 15:11:34 (UTC)
- 45.020°N 104.210°W
- 4.5 km depth
Did You Feel It?
Felt at Alzada. Felt (II) at Belle Fourche, South Dakota. Also felt at Custer, Rapid City and Spearfish.
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Earthquake Hazards Program
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