Known hazardous faults and fault zones shown on maps

The Central and Southeast U.S. region covers a large area of relatively diffuse, low rate seismicity. Principal areas of activity include the New Madrid Seismic Zone, the East Tennessee, and Southern Appalachian Seismic Zones, and South Carolina. Earthquakes do occur throughout the entire region. Due to the relatively low rate of seismicity, ground cover, deep soil, etc, most faults within the region aren't even mapped. Even the precise location of faults within the New Madrid Seismic Zone are subject to debate (though it is becoming more clear). Thus, unlike other recenteqs systems, we have elected not to show faults.