Seismoprints.
Abstract
Contour spectrograms (seismoprints) of short-period P and P-coda signals display power as a function of frequency and time. Analyses of LONG SHOT and an Andreanof Island earthquake (22 November 1965) by means of seismoprints effectively show the complex time-frequency-power relationships within the earthquake's P-coda; the explosion prints exhibit much simpler signatures. This suggests that volume integrals derived from earthquake and explosion seismoprints can be used to compute complexity factors. For the explosions, repetitive, characteristic signatures are found for the P and PcP arrivals (and for the P- and PcP-codas). (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 13, 1969
- Accession Number
- AD0865357
Entities
People
- T. J. Cohen
Organizations
- Teledyne Technologies