This dataset contains 1,297 newly digitized waveforms from the Leo Brady Seismic Network of 20 historical U.S. underground nuclear tests between 1966 and 1972. These data were recovered from the original analog frequency-modulated Ampex tapes used for recording seismic data at that time. All data are in SAC format, and instrument responses in RESP format are given for short-period data where possible. *data will be archived in SAC format not miniSEED as previously indicated.
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