George Helffrich

Image of the Earth
Contact me by e-mailing to ;
Phone: +44 117 954 5437, +44 117 925 3385 (FAX)


SAC for your MacOS X system here          Fast, interactive receiver function modelling? Look here...
Focal mechanism drawing? Try here!          Want to listen to the magnitude 9 Boxing Day earthquake and other seismograms (as MP3 files)? Look here...
CMT catalog search? Try here!          Browsing for something? Tips and tricks about software and system procedures...
Unclassified...
Calculate travel times? Try here!          Want some useful figures? Visit the figure gallery
         Buland and Kennett travel time tables? See here!


Publication List __________________