When you think about an earthquake California probably comes to mind. But they can also happen here in the Southeast.
The CSRA sits in the middle of the North American Plate. Our earthquakes aren't caused by the grinding of plate edges. Instead, they're what we call intraplate earthquakes.
The key is ancient history. Deep beneath us are old cracks, or faults, formed millions of years ago. These zones of weakness can reactivate when stress builds up within the plate. Here in the Augusta area, we even have the Belair Fault running beneath us, a reminder of these buried geological structures.
So, what kind of movement happens on these faults? Across the broader Southeast, including areas influencing our seismic activity, we see a few main types. Reverse faults occur when the ground is sque