The deep southeast has the advantage of being one of the few regions in the US without a known major earthquake risk. It makes a lot of sense to use concrete there given the other natural hazards.
The closest major earthquake zone is in South Carolina, which had M7+ earthquakes as recently as the late 19th century.
Given how prevalent strong earthquakes are across most of the US, I always wonder if the few areas on the map without a known seismic hazard means we just haven't discovered it yet.
The closest major earthquake zone is in South Carolina, which had M7+ earthquakes as recently as the late 19th century.
Given how prevalent strong earthquakes are across most of the US, I always wonder if the few areas on the map without a known seismic hazard means we just haven't discovered it yet.