eqWave

eqWave is a user-friendly earthquake waveform viewer that allows you to pick earthquake wave arrivals from dozens of seismograph stations in a single view.

It helps you to see frequency spectra, convert between velocity, acceleration and displacement, and much more. eqWave interacts with eqFocus for simple earthquake location and magnitude calculation. Input Data formats supported are PC-SUDS, MiniSEED, and GSE. Output data formats include PC-SUDS, ASCII text (for both waveforms and frequency spectra) and PNG image.