Found this:

"For example, seismologists from the Lamont-Doherty Earth Observatory of Columbia University, working with equipment supplied by the U.S. Geological Survey, are currently monitoring a swarm of earthquakes near Milford, New Jersey, within one kilometer of the mapped Ramapo Fault. "

Entire:
http://www.earthinstitute.columbia.edu/news/2004/story04-30-04b.html

I live 4.6 road miles from Milford, NJ