Accession Number:

ADA030857

Title:

The Effect of Attenuation on the Spectra of P Waves from Nuclear Explosions in North America

Descriptive Note:

Technical rept.

Corporate Author:

TELEDYNE GEOTECH ALEXANDRIA VA SEISMIC DATA ANALYSIS CENTER

Personal Author(s):

Report Date:

1976-06-01

Pagination or Media Count:

54.0

Abstract:

Anelastic attenuation t star was measured along various paths in North America using spectra of P-waves from nuclear explosions PILEDRIVER, KNICKERBOCKER, MAST, GNOME, and SALMON to various LRSM and SDCS stations. The results are consistent with the presence of a sizeable low Q layer under the western United States WUS and the absence of such layer under the tectonically stable eastern part of North America. Typical values of t star at intermediate distances along paths crossing this low-Q layer are around .45. Paths outside WUS have typical t star values around .15.

Subject Categories:

  • Seismology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE