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Authors: Galluzzo, D.* 
Bianco, F.* 
Cusano, P.* 
Langer, H.* 
Scarfì, L.* 
Tusa, G.* 
Zonno, G.* 
Carvalho, A.* 
Olafsson, S.* 
Rupakhety, R.* 
Sigbjornsson, R.* 
Title: Calibration of input parameters in volcanic areas and an enlarged dataset by stochastic finite-fault simulations
Issue Date: 24-Sep-2012
Keywords: stochastic simulation
volcanic areas
Subject Classification04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous 
04. Solid Earth::04.06. Seismology::04.06.04. Ground motion 
Abstract: The calibration of input parameters is an important task for stochastic finite-fault simulation in volcanic areas, and we manage this in the framework of the European project UPStrat-MaFa. The stochastic simulation method requires the knowledge of fault geometry, source, crust properties of the region, and local site effects. At first, we focused the present study in the pilot test areas: Mt Vesuvius, Campi Flegrei and Mt Etna. Later, we performed two applications for a large magnitude event in the Azores Islands and the South Iceland regions. A general preliminary database of ground-motion records was collected in the test areas, to set up the empirical laws of the ground-motion parameters. The results of the simulations have been compared with observed waveforms and response spectra, to determine the suitability of the parameters used. The results show good agreement between the observed and simulated time histories and response spectra, thus encouraging further efforts towards quantitative high resolution studies on input parameters.
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