IPSI

IPSI compiles georeferenced, quality-ranked horizontal crustal stress indicators for Italy to support crustal stress analysis, tectonic studies, and seismic-hazard assessment.

Key Features:

• Georeferenced data: Provides standardized horizontal stress orientations tied to geographic coordinates for spatial analysis and integration with other geospatial datasets.
• Standardized format and quality-ranking: Records follow a uniform format and are assigned quality ranks to enable national and global comparability.
• Comprehensive stress-indicator categories: Includes borehole breakouts, earthquake focal mechanisms, seismic sequences, and active fault-slip data as distinct indicator classes.
• Curated by INGV: Developed and maintained by the Istituto Nazionale di Geofisica e Vulcanologia (INGV).
• Extensive data collection: Contains 928 records in the reported release (IPSI 1.4, January 2020), with ongoing expansion and metadata refinement.

Scientific Applications:

• Earth crustal modelling: Provides spatially distributed stress data used as inputs or constraints for crustal and tectonic models.
• Applied geophysics and seismology: Serves as a dataset for analyzing stress distribution patterns, assessing seismic hazard, and investigating fault dynamics.

Methodology:

Compilation and rigorous analysis of horizontal stress orientations from diverse sources, per-record quality assessment, and standardization for comparability, with continuous updates to the dataset.