Shear-Wave Structure Model of Venetian Plane, Italy, From Seismic Noise Measurements
Abstract
We have measured fundamental mode Rayleigh wave group velocity dispersion from noise cross correlation between 2 stations. We focused on near surface shear wave structure, with short inter-distance and short time acquisition. The aim of the study was the use of seismic noise to define a realistic upper subsoil structure model, in order to compute a deterministic seismic hazard scenario. We considered different station location and the contribute of several noise sources like sea-wave and the anthropic ones. We analysed the Rayleigh group velocity dispersion with the FTAN method (Frequency-Time ANalysis, Levshin et al 1972,1992). The Venetian plane area (Italy) velocity model inverted is consistent with the known lithology, and in agreement with previous seismic measurements.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2007
- Bibcode:
- 2007AGUFMNS11D0797B
- Keywords:
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- 0935 Seismic methods (3025;
- 7294);
- 0999 General or miscellaneous;
- 7255 Surface waves and free oscillations;
- 7299 General or miscellaneous