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3.3

The magnitude of a preliminary earthquake that hit Columbia, S.C., shortly after 1:30 a.m. on May 9. Officials have said that Monday morning’s quake may have felt more significant due to the state’s loose soil, lack of bedrock and the earthquake’s shallow depth. There have been dozens of low-magnitude earthquakes in the area since last December and the state typically experiences 20 quakes a year.

(Associated Press — May 9, 2022)
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