The activity presented in this note is part of the PRIN 2020 NASA4SHA Project (Fault segmentation and seismotectonics of active thrust systems: the Northern Apennines and Southrn Alps laboratorie for new Seismic Hazard Assessments in northern Italy). The project's objective is to define, through a multidisciplinary approach including geological, geophysical, seismological, paleoseismological, and geodetic methods at various scales (regional and local), the geometry and kinematics of the main compressive systems in the central – estern Southern Alps and Northern Apennines. Geodetic methods make it possible to reconstruct the ongoing deformation rate of the Earth's surface at regional and local scales (with high-density networks). This information, combined with the 3D model of tectonic structures present in the investigated region, can indicate areas/volumes where the tectonic activity and the deformation are either more or less intense, enabling a focus on fault zones where the stress is increasingly accumulated. We analyzed data from continuous GNSS (Global Navigation Satellite Systems) stations covering the entire study area, belonging to the RING (Rete Integrata Nazionale GNSS) and FReDNet (Friuli Regional Deformation Network) networks, managed by INGV (Istituto Nazionale di Geofisica e Vulcanologia) and OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS) respectively, together with data from other permanent networks, managed by various institutions. In addition, we have resurveyed some vertices of the IGM95 geodetic network, focusing on local transects orthogonal to the main compressive structures, and we have analyzed the new discontinuous GNSS observations together with the previous ones performed in the past by IGM (Istituto Geografico Militare) on the same vertices.
PRIN 2020 NASA4SHA Project: A combined regional velocity field of Northern Italy
Riccardo Caputo;brighenti F.;russo D.;pellegrinelli A.
2024
Abstract
The activity presented in this note is part of the PRIN 2020 NASA4SHA Project (Fault segmentation and seismotectonics of active thrust systems: the Northern Apennines and Southrn Alps laboratorie for new Seismic Hazard Assessments in northern Italy). The project's objective is to define, through a multidisciplinary approach including geological, geophysical, seismological, paleoseismological, and geodetic methods at various scales (regional and local), the geometry and kinematics of the main compressive systems in the central – estern Southern Alps and Northern Apennines. Geodetic methods make it possible to reconstruct the ongoing deformation rate of the Earth's surface at regional and local scales (with high-density networks). This information, combined with the 3D model of tectonic structures present in the investigated region, can indicate areas/volumes where the tectonic activity and the deformation are either more or less intense, enabling a focus on fault zones where the stress is increasingly accumulated. We analyzed data from continuous GNSS (Global Navigation Satellite Systems) stations covering the entire study area, belonging to the RING (Rete Integrata Nazionale GNSS) and FReDNet (Friuli Regional Deformation Network) networks, managed by INGV (Istituto Nazionale di Geofisica e Vulcanologia) and OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS) respectively, together with data from other permanent networks, managed by various institutions. In addition, we have resurveyed some vertices of the IGM95 geodetic network, focusing on local transects orthogonal to the main compressive structures, and we have analyzed the new discontinuous GNSS observations together with the previous ones performed in the past by IGM (Istituto Geografico Militare) on the same vertices.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.