Utility Software

Last Updated: 02/16/2005

GreatCircle.zip - Visual Basic program written by Bob McClure to calculate distance, bearing to the quake, the arrival times of the P and S waves. Readme for GreatCircle.exe.
J-B_Plot - This program also by Bob McClure plots and curve fits data read in from the J-B travel-time files used by WinQuake.
Bear-dst.zip - Basic program written by Robert Barns to calculate distance, bearing to the quake, the arrival times of the P, S and LQ waves and an estimate of the relative signal. Readme for bear-dst.bas.
Psn2Text - This DOS program converts a PSN event file to a text file or displays the data to the screen. "C" source code is included. Readme file. (Psn2Text.zip 68k).
StaLta.zip (36k) - Used to calculate the STA / LTA ratios of a PSN Type 4 event file. Source code is included as an example on how to read the new PSN Type 4 format. Readme file.
pkunzip.exe (30K) - Used to decompress WinQuake and other ZIP files.
New - SAC_Header_Reader.zip (14K) - Visual Basic program written by Bob McClure to display the header information of a SAC formatted event file. More information.