CHARLESTON, S.C. — The United States Geological Survey says they do not think an earthquake caused buildings to shake in Charleston, South Carolina Tuesday afternoon.
The USGS posted the following tweets:
We see no detectable EQ in Charleston at the time of reported shaking. The origin of the disturbance is unknown possibly a sonic boom
— USGS (@USGS) January 26, 2016
Our systems are not designed for detecting sonic booms so other information is needed to verify
— USGS (@USGS) January 26, 2016

