Examination of a passive seismic dataset using beam steering , by Steve Cole

A passive seismic dataset is searched using beam steering, in much the same way that a seismological network uses beam steering to detect events. A coarse sampling of incident energy as a function of time, velocity, and direction of incidence is performed. If significant energy is found in a particular beam, a finer study is done to further define the direction and velocity of the incident energy. For two anomalously strong measurements, I show the uncorrected and beam steered data, and discuss what the results tell us about the energy present in the data.


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