On Sat, 17 Jul 1999, robert barns wrote:
>   A friend needs maps of 'quake activity in selected regions around
> Bulgaria and adjacent countries.  He would like to be able to specify the
> area.  For example, a 500 mi. radius around a particular city.
>   Is there some place on the internet for this?  He is trying to avoid the
> necessity of putting dots on a map from tabular data.
> Bob Barns

Bob,
   I am working on making a web based program that will do this and a number
of other tasks, but our SysAdmin is extremely worried about security.  A form
would be filled out on a page of the min and max lat and lon.  A cgi script
will then call a perl script that will build a GMT (Generic Mapping Tools)
macro file that, when executed, will produce a postscript file that can then
be converted to .gif format and returned to the browser.  I am still working
on finding a good color postscript to gif translator for unix (Solaris OS), so
if anybody knows one, please let me know.  The data will be taken from the
available databases on the www.  I would also like to have this program
compute b-values and make a N-S and E-W cross section of the data, but that is
further down the road...

   For now, if your friend could get the area(s) he is interested in 
displaying to me then I can make a plot for him.  Just let me know!

John Hernlund
E-mail: hernlund@.......
WWW: http://www.public.asu.edu/~hernlund/

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