Information - SM7 Groundshaking scenarios, ground motion models and site effects (co-listed in NH)
Event Information
Estimating the amplitude of ground motion as a function of earthquake magnitude and distance is essential to seismic hazard assessment and the design of earthquake resistant buildings.
A large number of regional and national acceleration databases currently provide data from modern (digital) accelerometric networks in Europe in addition to the already significant database of records from analogue instruments. Due to the improvement of these seismological networks the number of empirical, semi-empirical and calibrated-theoretical ground motion relations in Europe is actually strongly increasing. The first goal of this session is then to present recent European ground motion relations and their associated uncertainties, to discuss the applicability of weak motion based ground motion models to strong motion prediction and to compare existing ground motion models with the data collected during recent earthquakes that occurred in 2004 in or close to Europe.
Macroseismic observations made in correspondence after destructive events of the XXth century have also provided clear evidence of the strong influence of near-surface geological and topographical conditions on the damage distribution. Since most populated areas (e.g. mid to large cities) are settled in correspondence of sedimentary basins, better understanding of the characteristics of the local response is strongly needed by the seismological and engineering communities. The second goal of this session is then to present a review of the various techniques, based on recent empirical or theoretical approaches, for site response estimation. Comparison of the results from different approaches and using different data as well as reviews of the lessons from the recent earthquakes are welcome. Numerical investigations that focus on these themes are strongly encouraged as well.
Preliminary List of Solicited Speakers
P.Y. Bard "Site effect assessment: A few important challenges for European scientists"
Co-Sponsorship
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