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U.S. Department of Energy
Office of Scientific and Technical Information

Technical report for the period 1 April-30 June 1987

Technical Report ·
OSTI ID:5605825
Two technical notes related to network capability and design are presented. 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 of 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.
Research Organization:
Science Applications International Corp., Arlington, VA (USA). Center for Seismic Studies
OSTI ID:
5605825
Report Number(s):
AD-A-185959/4/XAB; SAIC-87/1131
Country of Publication:
United States
Language:
English