The European Extremely Large Telescope (E-ELT) is a planned ground-based extremely large telescope to be built by the European Southern Observatory (ESO) as an integrated part of the Paranal Observatory in Chile. The design includes a 42m-class reflecting telescope, it will be the largest optical/near-infrared telescope in the world and will gather 13 times more light than the largest optical telescopes existing today. A probabilistic seismic hazard assessment (PSHA) at the site was carried out with the scope of defining the seismic input for the conceptual design of seismic isolation system. The PSHA study was conducted for free-field conditions assuming flat topographic surface on rock site ideally representing outcropping bedrock conditions, and it is aimed at defining the Uniform Hazard Spectra for different return periods. The standard Cornell and a zone-free approach have been used for hazard computations after the compilation of a composite earthquake catalogue. Epistemic uncertainty in the seismic hazard was addressed within a logic-tree framework.
Probabilistic Seismic Hazard Assessment Of The European Extremely Large Telescope ("E-ELT") Project (Chile)
SPACONE, ENRICO;CAMATA, Guido;CANTAGALLO, CRISTINA;
2014-01-01
Abstract
The European Extremely Large Telescope (E-ELT) is a planned ground-based extremely large telescope to be built by the European Southern Observatory (ESO) as an integrated part of the Paranal Observatory in Chile. The design includes a 42m-class reflecting telescope, it will be the largest optical/near-infrared telescope in the world and will gather 13 times more light than the largest optical telescopes existing today. A probabilistic seismic hazard assessment (PSHA) at the site was carried out with the scope of defining the seismic input for the conceptual design of seismic isolation system. The PSHA study was conducted for free-field conditions assuming flat topographic surface on rock site ideally representing outcropping bedrock conditions, and it is aimed at defining the Uniform Hazard Spectra for different return periods. The standard Cornell and a zone-free approach have been used for hazard computations after the compilation of a composite earthquake catalogue. Epistemic uncertainty in the seismic hazard was addressed within a logic-tree framework.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
