Section 1: Earthquake Source.- Strong Motion Seismology.- Earthquake Source Mechanisms: Case Studies.- Source Parameters of Some Friuli Earthquakes (1976-1977) From Strong Motion Data.- The Seismic Inverse Problem For a Flat Structure.- Section 2: Prediction of Strong Ground Motion.- The Prediction of Strong Ground Motion.- A Theoretical Study of the Dependence of the Peak Ground Acceleration on Source and Structure Parameters.- Numerical Simulation of Earthquake Ground Motion.- High Frequency Earthquake Strong Ground Motion in Laterally Varying Media: The Effect of a Fault Zone.- Physical Mechanisms Contributing to Seismic Attenuation in the Crust.- Section 3: Acquisition and Interpretation of Strong Motion Data (Including Case Histories).- Data Acquisition and Processing in Strong Motion Seismology.- Strong Ground Motions in Italy: Accelerogram Spectral Properties and Prediction of Peak Values.- Analysis of Strong-Motion Data From the New Hampshire Earthquake of 18 January 1982.- Seismic Intensity and its Applications to Engineering: A Study in Japan.- Seismic Intensity and its Applications to Engineering: A Study in Turkey.- Section 4: Hazard Assessment.- Probabilistic Models for Assessment of Strong Ground Motion.- Seismic Source Regionalization.- Section 5: Site Response and Engineering Application.- Site Response Analysis.- Constitutive Relationships for Soil Dynamics.- Source and Local Site Effects-Preliminary Results Based on the Friuli Earthquake Sequence 1976.- Soil Structure Interaction Effects on Strong Ground Motion.- Engineering Uses of Strong Motion Data.