Analysis of the Superposition of Ground Motions from a Surface Row-Cratering Experiment and Single Contained Nuclear Events
Final technical rept. 1 Oct 1977-31 Jan 1979
COMPUTER SCIENCES CORP FALLS CHURCH VA
Pagination or Media Count:
This report examines the seismic aspects of a Threshold Test Ban Treaty Evasion scenario in which a clandestine nuclear device is detonated in the environment of a Peaceful Nuclear Experiment PNE involving the simultaneous detonation of a near-surface, multiple nuclear device configuration. The yield, location, and detonation delay time of the clandestine event relative to the PNE are examined in terms of the constraints imposed by both on-site and far-field monitoring equipment. Seismic recordings from the near-surface multiple detonation event, Buggy I, are used for the PNE while seismic recordings for the clandestine event are obtained by yield scaling the ground motion recordings from single contained events having the appropriate source-to-receiver distance. These two classes of signals are superimposed to simulate the ground motion for an evasion scenario. Spectral information is obtained from the PNE and the superposition seismograms and then analyzed to quantify the effect caused by the clandestine event.