Technical Report for the Period 1 April-30 Jun 1987,
Abstract
Two technical notes related to network capability and design. One compares mean values of short-period seismic noise measured during the GSE Technical Test with published values of Ring-dal for stable and tectonically active regions. A second compares depth determinations during the 1980 Common Data Base Experiment with theoretical detection thresholds. The third considers the significance of local and regional data in a global monitoring system. Two reports on research to improve analysis of regional seismic data. One is based on a consideration of particle motion of regional phases, and recommends ways to implement automated or interactive particle-motion analysis of regional seismic waveforms. The other focuses on event characterization of 95 earthquakes, mine blasts and offshore events recorded at NORESS. Miscellaneous topics deal with azimuth determination using polarization parameters of P and LR waves; reanalysis fo sub b bias between a recording site in eastern Kazakh and a station on and a new database containing waveforms from stations being operated in eastern Kazakh under an agreement between the Soviet Academy of Sciences and the Natural Resources Council.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1987
- Accession Number
- ADA185959
Entities
People
- A. Campanella
- A. Jurkevics
- H. Israelsson
- P. Dysart
- R. Baumstark
Organizations
- Leidos