Seismic arrays are used to enhance signals and suppress noise as well as to estimate the slowness and azimuth of signals. Seismic monitoring traditionally has relied upon seismic arrays to reduce detection (magnitude) thresholds by increasing signal-to-noise ratios (SNR) and to contribute to event formation by improving phase identification and association. A seismic array differs from a local network of seismic stations mainly by the techniques used for data analysis. In principle, a network of seismic stations can be used as an array, and data from an array can be analyzed the same as from a network. However, most array...

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