RESEARCH IN SEISMOLOGY

Abstract

Research in seismology on fundamental problems related to the detection, location and identification of underground explosions is described. Work in progress pertains to studies of (1) long period P-wave amplitude anomalies at the Montana LASA, (2) determination of anomalous structure (in Fennoscandia) by use of first derivatives of P-wave travel times, (3) crust and mantle S-wave velocity distribution and its regional variations, (4) a new method of earthquake energy determination, (5) the effect of focal depth on the spectrum of body waves, and (6) the frequency dependence of transmission through a layer over a half-space examined by modeling seismology techniques. Completed research is summarized and has investigated (1) Love and Rayleigh wave phase velocities over U. S. continental paths, (2) decoupling and source function for explosions in a three-dimensional model, and (3) exact solutions for the displacement components in head waves due to an impulsive double couple source.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1968
Accession Number
AD0684172

Entities

People

  • Carl Kisslinger
  • Otto W. Nuttli
  • Seweryn J. Duda
  • William V. Stauder

Organizations

  • Saint Louis University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Coordinate Systems
  • Detection
  • Doppler Effect
  • Earth Models
  • Earthquakes
  • Explosions
  • Explosives
  • Frequency
  • Geophysics
  • Identification
  • Seismology
  • Surface Waves
  • Travel Time
  • Two Dimensional
  • United States
  • Wave Propagation
  • Waves

Readers

  • Fluid Dynamics.
  • Seismology

Technology Areas

  • Space