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Calculated compressional-wave arrivals from underground nuclear detonations

ENVIRONMENTAL RESEARCH CORPORATION, 2769 SOUTH HIGHLAND DRIVE, LAS VEGAS, NEVADA 89102

Abstract

Analytical expressions have recently been derived by erven (1965) for the principal waves generated at a plane interface between two elastic solids attributable to a spherical compressional wave arriving at an arbitrary angle of incidence. These results are generalized to incorporate a nuclear seismic source function acting in a multilayered, linearly inelastic half-space. Using a seismic source function appropriate for the nuclear event BOXCAR and an approximate crustal model, the particle velocity profiles corresponding to those compressional-wave types which are routinely identified on measured, near-field seismograms are calculated and compared with the observed data for this event. These comparisons indicate that the peak amplitudes of some important compressional-wave types can be predicted with reasonable accuracy using a relatively simple model of the seismic transmission path.

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				S. Gaffet Teleseismic waveform modeling including geometrical effects of superficial geological structures near to seismic sources Bulletin of the Seismological Society of America, August 1, 1995; 85(4): 1068 - 1079. [Abstract] [PDF]

				J. R. MURPHY Seismic source functions and magnitude determinations for underground nuclear detonations Bulletin of the Seismological Society of America, February 1, 1977; 67(1): 135 - 158. [Abstract] [PDF]