Seismologists try to obtain information about physical processes within the earth by recording and analysing seismic ground motion. Historically, their attention has been focused on the earthquake source. Since, however, the ground motion recorded at a seismic station on the earth’s surface differs considerably from seismic signals generated by the earthquake source a major problem in seismology is the separation of the original source signal from other effects.
KeywordsGround Motion Earthquake Source Seismic Signal Seismic Ground Motion Displacement Spectrum
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