There is really no such thing as a dormant fault.
Oil fracking don’t help either.
The Wilmington fault, as it’s called, is an elusive type of fracture. Unlike many faults, which crack Earth’s surface like an egg, the Wilmington fault is “blind,” which means it’s concealed beneath the surface, making it especially difficult to study. So while scientists have long known the fault is present—stretching 12.4 miles.