Umbria

Umbria provides geospatial and geological datasets for the Umbria region in Italy, enabling analysis of geology, hydrogeology, and seismic hazards and distributing data in shapefile and KMZ formats.

Key Features:

• Geospatial Database: A comprehensive spatial database covering detailed information on geology, hydrogeology, and seismic hazards specific to the Umbria region.
• Seismic Hazard Mapping: Cartography of local seismic hazard completed in 2013 based on original sources at a scale of 1:10,000 and revised and standardized for consistency and accuracy.
• Geological Maps: A corpus of 276 geological maps at a reference scale of 1:10,000 produced over 20 years by the Geological Survey of Regione Umbria, modeling the regional surface and encompassing millions of geological data points.
• Characteristic Index: A per-geologic-unit index expressed as a percentage representing the ratio between surface area and thickness, where thickness values are calculated from rank levels using a weighted average approach.

Scientific Applications:

• Seismology: Use of seismic hazard maps to assess earthquake risk and inform mitigation-focused analyses.
• Geology and Hydrogeology: Use of geological maps and datasets to study rock formations, mineral distributions, and groundwater systems.
• Environmental Science: Use of spatial and geological data to analyze environmental changes and support land-use planning studies.

Methodology:

Data were collected and standardized; cartography was produced at 1:10,000 from original sources; characteristic indices were computed as percentage ratios of surface area to thickness with thickness derived from rank levels via a weighted average.