SPHEROIDAL FREE PERIODS OF THE EARTH OBSERVED AT EIGHT STATIONS AROUND THE WORLD,

Abstract

Spectral peaks corresponding to the spheroidal free periods of oscillation of the earth exist in the spectra of eight seismograms written at stations in different parts of the world shortly after the great Chilean earthquake of 22 May 1960. Th se data have been combined with those previously reported by various authors to obtain a very precise phase velocity vs period curve for Rayleigh waves in the period range of 200 to 3200 seconds. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 18, 1963
Accession Number
AD0443141

Entities

People

  • L. E. Alsop

Tags

DTIC Thesaurus Topics

  • Earthquakes
  • Motion
  • Oscillation
  • Phase Velocity
  • Rayleigh Waves
  • Spectra
  • Wave Phenomena
  • Waves

Readers

  • Calculus or Mathematical Analysis
  • Seismology