I could not get the NEIS search to work because the database doesn't seem to be generating data for times past around July of 2011.

http://earthquake.usgs.gov/earthquakes/eqarchives/epic/

One or more of their catalogs must be having problems.

I found another earthquake search program at the following address:

http://www.ncedc.org/anss/catalog-search.html

That one appears to be working. But I am going to have modify my earthquake forecasting data processing program so that it can read the format the output data are in.