References:
Armbruster,
J. G., and L. Seeber, 1992, NCEER, National Seismic Hazard Mapping
Project (U.S. Geological Survey), <http://geohazards.cr.usgs.gov/eq.html/catdoc.emb
forweb.txt>
NUSSN
(Foley, J.E., Buzzell, G., Doll, C., Dollin, M., Filipkowski, F., Hulit, M.B.,
and McCaffrey, J.P., compilers and editors), 1984b, Seismicity of the
northeastern United States, July 01, 1982 - September 30, 1982, Northeastern
U.S. Seismic Network Bulletin No. 28.
LCSN,
1999, Lamont Cooperative Seismic Network, http://www.ldeo.columbia.edu/datarep/index.html.
Scharnberger,
C. K., 1989, Earthquake hazard in Pennsylvania, Pennsylvania Geological Survey,
4th ser., Educational Series 10, 14 p.
SRA (Stover, C. W., Reagor, B. G., and Algermissen, S. T.),
1987, Seismicity map of the state of Pennsylvania (rev.), U.S. Geological Survey
Miscellaneous Field Studies Map, MF-1280. [from
1724 to 1982].
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