Geological three-dimensional reconstruction of the area hit by the earthquake in Central Italy

Published online and made freely available to the entire scientific community the results of the RETRACE-3D Project (centRal italy EarThquakes integRAted Crustal model), which investigated the crustal volume struck by the 24th August 2016 Amatrice earthquake and the subsequent seismic sequence; an area of approximately 2,500 km2, affected by over 118,000 seismic events between 2016 and 2019.

The geological 3D model and the final report resulted from the collaboration of more than 60 researchers and experts of the Department of Civil Protection and the research institutes CNR-IGAG, CNR-IREA, INGV, and ISPRA-Servizio Geologico d'Italia, Competence Centers operating in the National Service of Civil Protection. Eni and Total collaborated on the project making available subsurface data and know-how, also being part of the National Civil Protection Service.

The geological 3D model allows highlighting the distribution and geometry, as well as the complexity of mutual relations, of the most relevant geological units and main faults, including seismogenic sources, up to a depth greater than 10 km, reconciling the elements observed at the surface with structures at depth.

The final report and the geological 3D model are released under a CC-BY 4.0 license, guaranteeing the possibility of being freely used for studies at the regional scale with the recognition of the correct attribution.

Download the results (

RETRACE-3D Central Italy Geological Model (2021). doi: 10.13127/retrace-3d/geomod.2021

RETRACE-3D Working Group (2021). RETRACE-3D: centRal italy EarThquakes integRAted Crustal modEl. Rapporto finale. Eds. INGV, ISPRA, CNR-IGAG, DPC. Roma, pp. 100. doi: 10.5281/zenodo.4604940