1 ANNALS OF GEOPHYSICS, 65, 2022, doi:10.4401/ag-8883 OPEN ACCESS Revitalizing vintage seismic refection profles by converting into SEG-Y format: case studies from publicly available data on the Italian territory Mauro Buttinelli *,1 , Francesco Emanuele Maesano 1 , Daniel Sopher 2 , Fabio Feriozzi 1 , Stefano Maraio 1 , Francesco Mazzarini 1 , Luigi Improta 1 , Roberto Vallone 1 , Fabio Villani 1 , Roberto Basili 1 (1) Istituto Nazionale di Geofsica e Vulcanologia, Rome, Italy (2) Geological Survey of Sweden, Uppsala, Sweden Article history: received July 25, 2022; accepted October 14, 2022 Abstract In recent decades, geological modeling has signifcantly evolved, relying on the growing potential of hardware and software to manage and integrate vast datasets of 2D-3D geophysical underground data. Therefore, digitization and integration with other forms of data can often improve understanding of geological systems, even when using so-called vintage or historical data. Seismic refection data have been extensively acquired mainly for hydrocarbon exploration since the 60s generating large volumes of data. Typically, these data have been for private commercial use and are relatively unavailable for research. However, with time, large volumes of vintage seismic refection data in many countries worldwide are now becoming publicly available through time-based de-classifcation schemes. Such data have a great potential for modern-day geo-research, unleashing opportunities to improve geological understanding through re-interpretation with modern methods. However, a downside of these vintage data is that they are often only available in analog (paper, raster) format. The vectorization of these data then constitutes an essential step for unlocking their research potential. In 2018 INGV established the SISMOLAB-3D infrastructure, which is mainly devoted to analyzing digital subsurface data, such as seismic refection profles and well-logs, to build 2D-3D geological models, principally for seismotectonics, seismic hazard assessment, and geo-resources applications. In this contribution, we discuss the robustness of the WIGGLE2SEGY code, frstly published by Sopher in 2018, focusing on examples from different tectonic and geodynamic contexts within Italian territory. We applied the SEG-Y conversion method to onshore and offshore raster seismic profles related to ceased exploration permits, comparing the results with other published archives of SEG-Y data obtained from the conversion of vintage data. Such an approach results in digital SEG-Y fles with unprecedented quality and detail. The system- atic application of this method will allow the construction of a comprehensive dataset of digital SEG-Y seismic profles across Italy, thereby expanding and sharing the INGV SISMOLAB-3D port- folio with the scientifc community to foster innovative and advanced scientifc analysis. Keywords: Vectorization of vintage seismic profles into SEG-Y; WIGGLE2SEGY MATLAB-based code; Seismic profles digital database; Italian territory; 2D/3D geological models