Dependence of Theoretical and Observed Rayleigh-Wave Spectra on Distance, Magnitude, and Source Type.
Abstract
Theoretical source spectra which are closely tied to empirical evidence from explosions and earthquakes are presented. The effects of the transfer functions of a layered media upon these source spectra are shown and a theoretical earthquake-explosion spectra ratio is defined for Rayleigh waves. Using spectral estimates on many widely distributed events, it has been found that explosions and earthquakes can be separated by splitting Rayleigh-wave energy between 10 and 50 seconds into two period bands and calculating their ratio. Explosion ratios are confined to a narrow range. Earthquake ratios have a large scatter because they depend on depth and source mechanism parameters. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 27, 1969
- Accession Number
- AD0864299
Entities
People
- D. G. Lambert
- D. H. Von Seggern
Organizations
- Teledyne Technologies