Close-In and Regional Source Studies for Seismic Discrimination

Abstract

Studies are conducted in a number of areas pertinent to seismic discrimination. Attempts are made to check the efficiency of the Pn-Rayleigh discriminant found by McEvilly and Peppin (1972); results are not favorable for the use of this discriminant. Rather, a discriminant based on the excitation of Pg and Sg (or Lg), investigated by others, is found to be quite effective. Analyses of close-in accelerograms is attempted with the view toward application of moment tensor analysis. Results show that recent studies are still in significant disagreement. An attempt is made to investigate a seismic discriminant based on Pn alone. A set of Green's functions and data for small explosions have been assembled for application of moment tensor analysis. Peripheral studies include source studies of Basin and Range earthquakes and a study of Rayleigh wave dispersion on the test site.

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Document Details

Document Type
Technical Report
Publication Date
Dec 03, 1979
Accession Number
ADA150033

Entities

People

  • William A. Peppin

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Air Force
  • Computer Programs
  • Data Acquisition
  • Digital Data
  • Discrimination
  • Earthquakes
  • Explosions
  • Frequency
  • Nuclear Explosions
  • Phase Velocity
  • Rayleigh Waves
  • Seismic Discrimination
  • Surface Waves
  • Tensor Analysis
  • Wave Propagation
  • Waves

Readers

  • Seismology
  • Systems Analysis and Design