The SeisGram2K Seismogram Viewer is a Java program for interactive viewing of earthquake seismogram traces locally or over the Internet.
SeisGram2K displays one or more sets of single trace or 3-component seismograms. The viewer supports: zooming, scaling and transformation of the seismograms; rotation of horizontal component traces; time and amplitude picking; animated, 3D particle motion display; time-domain integration and differentiation; interactive spectral and spectrogram displays; frequency-domain filtering, instrument removal and other processing; and much more.