Research in Seismology. Progress Report in Earthquake Mechanism, Magnitude, Spectral Properties, and Model Studies

摘要

The research may be categorized as work on: earthquake focal mechanisms, earthquake and explosion magnitude and energy determinations, spectral properties of earthquakes and explosions, model studies of strain release and coupling and continued study of regional seismicity. The principal results reported are: an improved technique for determining the best-fitting focal mechanism relation by combining P-amplitude and S-wave polarization data has been developed; a technique for determining the fault plane solution using P-wave amplitude data has been developed.