Probabilistic Seismic and Tsunami Hazard Assessment

Providing state-of-the-art seismic hazard assessments for the earthquake engineering community is the most important aim of the work within Section 2.6. Within this framework, existing methodologies for seismic hazard assessment are improved and new methods are developed, which are applied to a range of different test areas. In this work, all geoscientific information must be integrated appropriately. This includes, in addition to the results of seismological analyses, also paleoseismological, geodetic and geological data. New seismic hazard assessments are based on a consistent probabilistic treatment of all input data through the use of “logic trees”. This gives the possibility of calculating not only the explicit hazard levels (peak ground acceleration, macroseismic intensity) as mean or median values, but also the associated fractiles of their standard deviation. Examples of successfully completed studies include GSHAP, the seismic hazard assessment for the D-A-CH countries (Germany, Austria, Switzerland) and further PSHA studies.

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Current studies include a new generation of seismic hazard assessment PSHA for Germany and the seismic hazard map of Austria.

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