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Seismic Toolkit is a tool for processing and displaying seismic signal data in a graphical interface. It reads seismic signals in SAC format, and provides a variety of signal processing, such as filtering, spectral analysis, polarisation analysis, time-frequency representation, Hilbert transform, and singular value decomposition. Some utilities are included for useful seismological applications, like computation of Seismic Moment Mo, Mantle magnitude Mm and Moment magnitude Mw, MTPA spectral analysis, plotting focal mechanisms, computation (and plotting) of instrumental response from poles and zeros, and some usefull GMT (Generic Mapping Tool) scripts for plotting signals, responses, and time-frequency in Postscript files for high quality prints.License: GNU General Public License (GPL)Changes:
A minimum mathematical library for linear algebra (MLINA lib) has been added in Utility programs. As it is written in standard C, the functions can be adapted very easily to other programs (unlike CLAPACK, LAPACK, LINPACK, or EISPACK which use Fortran). Of course MLINA cannot compete with these very complete and high level libraries, but it provides convenient and standard tools for solving sets of linear equations, eigenvalues, and vector computation.



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