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Short-term dynamics of seismicity: new theoretical base and implications for seismic risk reduction

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Les liens vers les livrables et les publications des projets du 7e PC, ainsi que les liens vers certains types de résultats spécifiques tels que les jeux de données et les logiciels, sont récupérés dynamiquement sur OpenAIRE .

Résultats exploitables

The project develops theoretical and numerical models of seismicity and seismic risk thus creating a new base for understanding, monitoring and prediction. Methodology is rooted in theoretical physics, mathematical statistics and elastodynamics. During the project execution, the following important results were obtained: development of models for the exploration of symptoms of instability and for earthquake prediction; methods, algorithms and software for 2-dimensional and 3-dimensional simulation of block dynamics developed and applied in the Western Alps and Vrancea region; modified version of the earthquake prediction algorithm M8 suggested and compared to M8 and CN; hierarchical division of the system of Armenian upland into interrelated elements and detection of subsystems and homogenous seismotectonic zones; block structure geometry of the Alps based on morphostructural zonation map; morphostructural lineaments and disjunctive nodes for the Kopet-Dagh and Carpatho-Balkan orogenic belt region (on this base nodes having potential for the occurrence of earthquakes with M 6.5 are identified); 'Creepex' used for the investigation of earthquakes source properties in spreading and subduction zones ; determination of seismic strain and tectonic stress fields in the lithosphere, embedding the fault system; a study of the 1991 Hailino and the 1992 Susamyr earthquakes using the developed techniques for reconstruction of seismic source parameters; building of a focal mechanism database for the area of the Eastern Alps and Circum-Pannonian region; determination of strong ground motion and seismic hazard estimation; definition of elastic parameters of the structure of the Ararat sedimentary basin; definition of amplitude-spectral characteristics of ground motion; identification of the most active faults; new approach for the classification of natural disasters; new method for the statistical estimation of Mmax (maximum regional magnitude) and Amax (maximum peak ground acceleration at a given point during the time interval T); codes for the analytical computation of synthetic accelerograms in anelastic, laterally heterogeneous media; formation of databases, maps and catalogues for a number of regions.

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