The new Database of Individual Seismogenic Sources: learning about Italy’s active tectonics from a regional seismotectonic view

Abstract

The DISS (extensively described elsewhere in this session: also available at http://www.ingv.it/DISS/) is a large and fully georeferenced repository of tectonic, fault and paleoseismological information on Italy. The new version 3.0.2 contains over 120 “Individual Seismogenic Sources”, over 75 “Seismogenic Areas”, over 300 “Macroseismic Seismogenic Sources”, all complemented by over 700 images, about 2,000 references and a number of maps and datasets regarding widely diverse geophysical datasets. The data analysis tools supplied by DISS’ GIS engine allow the user to select, overlay and process several types of data and to perform spatial and statistical analyses. For all of these reasons DISS is not simply an archive of outcrop-scale field data, but rather a precious tool that allows the seismogenic process to be represented and investigated in 3D and at various scales, and particularly at regional scale. One of the key points in the design of the structure of the Dabatase was the full exploitation of basic physical constraints concerning the rates of crustal deformation, the continuity of deformation belts, the spatial relationships between adjacent faults, both at the surface and at depth.