Assuming they don't remove it from list, there was a M3.0 in New Jersey. They don't have detailed maps on the link yet, but it is liable to near the Ramapo fault, which was a major rift fault 200 million years ago or so associated with opening of Atlantic Ocean. There is still a (diffuse?) belt of seismicity along it. We used to cross its fault line scarp all the time back in a previous life when I was "Chris in Suburbia" Fault line scarp means a topographic feature along a fault that need not be formed by fault slip: in this case, could be by differential erosion.
I'm at home and my New Jersey geologic map is in at the local university where I have a desk.
Chris

• Jersey quake