Earthquakes in the Greater New York -Philadelphia area: Catalog and Tectonic Setting
Earthquakes in Greater New York-Philadelphia Area: Catalog 1677 to 2005 and Tectonic Setting
Appendices to paper Earthquakes in the Greater New York City-Philadelphia Area: 1677-2004
by Lynn R. Sykes, John Armbruster, Won-Young,Kim, Leonardo Seeber, and Klaus Jacob.
Lamont-Doherty Earth Observatory of ColumbiaUniversity