Earthquake Recurrence And Seismic Hazard Assessment: A Comparative Analysis Over The Italian Territory

Rigorous and objective testing of seismic hazard assessments against real seismic activity are a necessary precondition for any responsible seismic risk assessment. The reference hazard maps for the Italian seismic code, obtained with the classical probabilistic approach (PSHA) and the alternative g...

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Bibliographic Details
Published in:WIT Transactions on the Built Environment 2013-01, Vol.132, p.23
Main Authors: Peresan, A, Magrin, A, Nekrasova, A, Kossobokov, V G, Panza, G F
Format: Article
Language:English
Subjects:
Assessments
Earthquake construction
Earthquakes
Environmental risk
Geological hazards
Ground motion
Hazard assessment
Risk assessment
Seismic activity
Seismic hazard
Seismic phenomena
Seismicity
Shaking
Territory
Urban environments
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Summary:Rigorous and objective testing of seismic hazard assessments against real seismic activity are a necessary precondition for any responsible seismic risk assessment. The reference hazard maps for the Italian seismic code, obtained with the classical probabilistic approach (PSHA) and the alternative ground shaking maps based on the neo-deterministic approach (NDSHA) are crosscompared and tested against the real seismicity for the territory of Italy. NDSHA is a methodology that allows for the sound definition of credible scenario events, based on the realistic physical modelling of ground motion from a wide set of possible earthquakes. The flexibility of NDSHA permits to account for earthquake recurrence and allows for the generation of ground motion maps at specified return periods that permits a straightforward comparison between the NDSHA and the PSHA maps.
ISSN:1746-4498
1743-3509
DOI:10.2495/ERES130031