Last modified 15 years ago Last modified on 01/20/2009 05:34:36 PM

Features of the SHM program

Main features

  • Reading traces from continuous data streams in Steim-compressed MiniSEED files. Additionally supported formats are event data from GSE, AH and Q (private format of SH) files.
  • Zoom in and out traces in time and amplitude.
  • Application of a set of standard filters (simulation filters and Butterworth filters) on broadband input traces.
  • Reading phases on original or preprocessed traces.
  • Determination of signal/noise ratio
  • Computation of teleseismic beam traces using array-beamforming or FK-algorithm, determination of slowness and back-azimuth of an incoming wavefront.
  • Location of teleseismic events using global travel time tables based on array methods or relative travel times, determination of focal depth using depth phases
  • Location of regional and local events using LocSAT program, flexible interface provided for integration of own location programs.
  • Integration of an own external programs (e.g.: map display, phase diagrams).
  • Displaying theoretical travel times.
  • Determination of amplitudes and magnitudes (ml or mb and Ms).
  • Saving analysis results into an output text file for further processing.
  • Supported operating systems: Sun/Solaris? and Linux

Additional features

  • Rotation of 3-component seismograms
  • Particle motion diagrams
  • Vespagram-like trace summation
  • Trace spectrum display

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