Given an existing list of seismic picks, add Latitude, Longitude and Elevation associated with the indicated station.
List of picks from swig
The names of the stations are matched to the station names int he station file.
Pick file with LLZ added as list members.
Jonathan M. Lees<email@example.com>
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## Not run: twpx = latlonz2wpx(twpx, stas) ## End(Not run)