It was minor, but an earthquake hit east of Rapid City this week.
The US Geological Survey says the temblor measuring three-point-one on the Richter Scale registered at 3:36 AM Wednesday.
Its center was about 17 miles west of Wall and 13 miles east-southeast of New Underwood.
Geology Professor Alvis Lisenbee at the South Dakota School of Mines and Technology in Rapid City says a quake that size will do little, if any, damage, and there have been no reports.
He says South Dakota typically gets an earthquake every two to three years, especially in the southern half of the state. USGS data on earthquake
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