John-

> I also mentioned the Public Seismic Network.  This is an informal
> group of mostly non-seismologists interested in seismology to
> the extent that many run their own seismic stations.

I would label members of the Public Seismic Network as "amateur seismologists". I
think it is difficult to be as involved in seismology to the extent of operating
ones own seismic station and be a "non-seismologist".
-Edward

--
Edward Cranswick                Tel: 303-273-8609
US Geological Survey, MS 966    Fax: 303-273-8600
PO Box 25046, Federal Center    cranswick@........
Denver, CO 80225-0046  USA      E.M. Forster said, "Only connect".




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