FDT format

A data file in the FDT format is an textfile containing a set of fault-slip data. The file is composed of lines, each of which describes fault-slip datum of a fault. The five items, faz, fpl, saz, spl, and shear sense, are placed in the line and are delimited by spaces. The sens is represented by one of the characters 'N', 'R', 'D' or 'S'.