Bob,

It is called the New Madrid Fault zone, and generally encompasses
the upper Mississippi embayment, and not the entire SE of the USA.
Check some current (< 20yrs) maps and literature.

I have operated as many as 56 telemetry stations thruout the area
since 1974, most of which are now covered by the CERI (Memphis) network.

Sean-Thomas Morrissey
St. Louis University

__________________________________________________________

Public Seismic Network Mailing List (PSN-L)