Publication Date:
2023-03-15
Description:
This study analyses the geological reasons that supported the relocation of the Cavallerizzo
village (Calabria, southern Italy) to a new area after the landslide event in 2005 to examine
whether the institutional ordinance of displacing the entire village was the right choice. This
study is based on new geological and geomorphological field investigations, on a new reading of
the existing borehole data and new data collected by multi-temporal synthetic aperture radar
interferometry. The results obtained reveal that only the areas bordering the Cavallerizzo village
are affected by active landslides, whereas, in the historical centre, geomorphological evidence for
an active landslide capable of involving the entire settlement is not found. Nowadays, 17 years
after the 2005 landslide event, more than 85% of the Cavallerizzo village is completely intact,
lacking evidence of instability or important damage to ancient buildings. Furthermore, in the
historical urban area, very low ground displacements by InSAR investigation are observed,
highlighting that the instability conditions of Cavallerizzo are less severe than those recognised in
nearby villages. This evidence along with the strong negative economic and socio-cultural impacts
that the village settlement had on the community involved led to the reconsideration of the
adequacy of the relocation ordinance issued by the National Civil Protection. These findings can
contribute to useful advice and best practices to state-run organisations and stakeholders for
disaster management planning in urban sites, such as Cavallerizzo, subject to hydrogeological
hazards.
Description:
This work was supported by the MIUR. Italy-ex 60% Project (Responsibility of Fabio Ietto). Copernicus Sentinel-1 IW SAR data were provided via and processed in ESA’s Geohazards Exploitation Platform (GEP), in the framework of the GEP Early Adopters Programme 2015–2020 and the Geohazards Lab initiative, the latter developed under the CEOS Working Group on Disasters. Data processing was carried out with the Snapping (Surface motioN mAPPING) service developed and integrated by Aristotle University of Thessaloniky in the GEP.
Description:
Published
Description:
103267
Description:
2T. Deformazione crostale attiva
Description:
JCR Journal
Keywords:
Geognostic survey
;
Landslides
;
MT-InSAR
;
Village resettlement
;
Calabria
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
Permalink
