Accession Number:

ADA276689

Title:

Analysis of Regional Distance Body Waves for Seismic Discrimination

Descriptive Note:

Final rept. Aug 1990-Jul 1992

Corporate Author:

ARIZONA UNIV TUCSON DEPT OF GEOSCIENCES

Report Date:

1992-12-23

Pagination or Media Count:

110.0

Abstract:

The role of seismology in monitoring non-proliferation and underground testing of nuclear weapons is one of discrimination of low-yield devices detonated in uncalibrated environments. Most of the monitoring will be done at regional distances, so it is essential to develop a detailed understanding of seismic phases which have traveled 100-1500 km. In this report we detail procedures for recovering source parameters of small earthquakes at regional distances, and develop an empirical database for large chemical explosions. Regional distances seismograms are often difficult to deterministically model. It is essential that regions of specific interest be calibrated by developing an empirical understanding of propagation characteristics. To this end we have studied the seismotectonics and gross crustal structure characteristics of the Middle East and the Lop Nor the northeastern corner of the Tarim Basin.

Subject Categories:

  • Seismology
  • Explosions
  • Nuclear Weapons

Distribution Statement:

APPROVED FOR PUBLIC RELEASE