Articles | Volume 26, issue 7
https://doi.org/10.5194/nhess-26-3077-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-3077-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Brief communication: A century of landslide records in Calabria, southern Italy, looking for changes and trends through a dynamic analysis
Stefano Luigi Gariano
CORRESPONDING AUTHOR
CNR-IRPI Italian National Research Council, Research Institute for Geo-Hydrological Protection, Via della Madonna Alta 126, 06128, Perugia, Italy
Olga Petrucci
CNR-IRPI Italian National Research Council, Research Institute for Geo-Hydrological Protection, Via Cavour 4–6, Rende, 87036 Cosenza, Italy
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Silvia Peruccacci, Stefano Luigi Gariano, Massimo Melillo, Monica Solimano, Fausto Guzzetti, and Maria Teresa Brunetti
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ITALICA (ITAlian rainfall-induced LandslIdes CAtalogue) is the largest catalogue of rainfall-induced landslides accurately located in space and time available in Italy. ITALICA currently lists 6312 landslides that occurred between January 1996 and December 2021. The information was collected using strict objective and homogeneous criteria. The high spatial and temporal accuracy makes the catalogue suitable for reliably defining the rainfall conditions capable of triggering future landslides.
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We present a novel data-driven modelling approach to determine season-specific critical precipitation conditions for landslide occurrence. It is shown that the amount of precipitation required to trigger a landslide in South Tyrol varies from season to season. In summer, a higher amount of preparatory precipitation is required to trigger a landslide, probably due to denser vegetation and higher temperatures. We derive dynamic thresholds that directly relate to hit rates and false-alarm rates.
Silvia Peruccacci, Stefano Luigi Gariano, Massimo Melillo, Monica Solimano, Fausto Guzzetti, and Maria Teresa Brunetti
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ITALICA (ITAlian rainfall-induced LandslIdes CAtalogue) is the largest catalogue of rainfall-induced landslides accurately located in space and time available in Italy. ITALICA currently lists 6312 landslides that occurred between January 1996 and December 2021. The information was collected using strict objective and homogeneous criteria. The high spatial and temporal accuracy makes the catalogue suitable for reliably defining the rainfall conditions capable of triggering future landslides.
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Cited articles
Antronico, L., Borrelli, L., and Coscarelli, R.: Recent damaging events on alluvial fans along a stretch of the Tyrrhenian coast of Calabria (southern Italy), B. Eng. Geol. Environ., 76, 1399–1416, https://doi.org/10.1007/s10064-016-0922-2, 2017
Antronico, L., Borrelli, L., Coscarelli, R., Pasqua, A. A., Petrucci, O., and Gullà, G.: Slope movements induced by rainfalls damaging an urban area: The Catanzaro case study (Calabria, southern Italy), Landslides, 10, 801–814, https://doi.org/10.1007/s10346-013-0431-3, 2013.
Bezak, N. and Mikoš, M.: Changes in the rainfall event characteristics above the empirical global rainfall thresholds for landslide initiation at the pan-European level, Landslides, 18, 1859–1873, https://doi.org/10.1007/s10346-020-01579-0, 2021.
Brunetti, M. T., Peruccacci, S., Rossi, M., Luciani, S., Valigi, D., and Guzzetti, F.: Rainfall thresholds for the possible occurrence of landslides in Italy, Nat. Hazards Earth Syst. Sci., 10, 447–458, https://doi.org/10.5194/nhess-10-447-2010, 2010.
Caloiero, T., Filice, E., Marsico, L., Zimbo, F., and Petrucci, O.: Characterization of the November 2020 damaging hydrogeological event affecting the Calabria region (southern Italy), Euro-Mediterr. J. Environ. Integr., 9, 1815–1832, https://doi.org/10.1007/s41207-024-00658-1, 2024.
Calvello, M. and Pecoraro, G.: FraneItalia: a catalog of recent Italian landslides, Geoenvironmental Disasters, 5, 13, https://doi.org/10.1186/s40677-018-0105-5, 2018.
Conforti, M., Scarcella, G. E., Cosentini, G., and Petrucci, O.: Historical damaging geo-hydrological events affecting the Catanzaro municipality (Calabria, Southern Italy), 1830–2023, J. Maps, 21, 1–11, https://doi.org/10.1080/17445647.2025.2498977, 2025.
Gariano, S. L. and Rianna, G.: How will the projected climate change influence rainfall-induced landslides in Europe? A review of modelling approaches, Landslides, 22, 3011–3027, https://doi.org/10.1007/s10346-025-02550-7, 2025.
Gariano, S. L., Melillo, M., Peruccacci, S., and Brunetti, M. T.: How much does the rainfall temporal resolution affect rainfall thresholds for landslide triggering?, Nat. Hazards, 100, 655–670, https://doi.org/10.1007/s11069-019-03830-x, 2020.
Gariano, S. L., Petrucci, O., and Guzzetti, F.: Changes in the occurrence of rainfall-induced landslides in Calabria, southern Italy, in the 20th century, Nat. Hazards Earth Syst. Sci., 15, 2313–2330, https://doi.org/10.5194/nhess-15-2313-2015, 2015.
Kapucu, N., Okhai, R., Ge, Y., and Zobel, C.: The use of documentary data for network analysis in emergency and crisis management, Nat. Hazards, 116, 425–445, https://doi.org/10.1007/s11069-022-05681-5, 2023.
Melillo, M., Brunetti, M. T., Peruccacci, S., Gariano, S. L., Roccati, A., and Guzzetti, F.: A tool for the automatic calculation of rainfall thresholds for landslide occurrence, Environ. Model. Softw., 105, 230–243, https://doi.org/10.1016/j.envsoft.2018.03.024, 2018.
Peres, D. J., Bonaccorso, B., Palazzolo, N., Cancelliere, A., Mendicino, G., and Senatore, A.: A dynamic approach for assessing climate change impacts on drought: an analysis in Southern Italy, Hydrolog. Sci. J., 68, 1213–1228, https://doi.org/10.1080/02626667.2023.2217332, 2023.
Peruccacci, S., Gariano, S. L., Melillo, M., Solimano, M., Guzzetti, F., and Brunetti, M. T.: The ITAlian rainfall-induced LandslIdes CAtalogue, an extensive and accurate spatio-temporal catalogue of rainfall-induced landslides in Italy, Earth Syst. Sci. Data, 15, 2863–2877, https://doi.org/10.5194/essd-15-2863-2023, 2023.
Petrucci, O.: Changes in human vulnerability to flood and landslide: evidences from historical data, Sustainability, 16, 6715, https://doi.org/10.3390/su16166715, 2024.
Petrucci, O., Mercuri, M., and Conforti, M.: SCIBA: A geo-dataset of damaging rainfall related landslides and floods throughout 113 years on a Mediterranean study area, Geosci. Data J., 12, e70026, https://doi.org/10.1002/gdj3.70026, 2025.
Rago, V., Chiaravalloti, F., Chiodo, G., Gabriele, S., Lupiano, V., Nicastro, R., Pellegrino, A. D., Procopio, A., Siviglia, S., and Terranova, O. G.: Geomorphic effects caused by heavy rainfall in southern Calabria (Italy) on 30 October–1 November 2015, J. Maps, 13, 836–843, https://doi.org/10.1080/17445647.2017.13842399, 2017.
Rago, V., Lupiano, V., Chiaravalloti, F., Chiodo, G., Gabriele, S., Pellegrino, A. D., Terranova, O. G., and Iovine, G.: Geomorphic effects caused by heavy rainfall in the Corigliano-Rossano area (NE Calabria, Italy) on 12 August 2015, J. Maps, 17, 40–53, https://doi.org/10.1080/17445647.2020.1867248, 2021.
Rilo, A., Tavares, A. O., Freire, P., Zêzere, J. L., and Haigh, I. D.: Improving estuarine flood risk knowledge through documentary data using multiple correspondence analysis, Water, 14, 3161, https://doi.org/10.3390/w14193161, 2022.
Sangelantoni, L., Gioia, E., and Marincioni, F.: Impact of climate change on landslides frequency: the Esino river basin case study (Central Italy), Nat. Hazards, 93, 849–884, https://doi.org/10.1007/s11069-018-3328-6, 2018.
Simón, J. L., Simón-Porcar, G., and Peiro, A.: Memory of the Earth and human memory of natural disasters: the 1953 earthquake in Western Aragón (Spain), Geoheritage, 14, 114, https://doi.org/10.1007/s12371-022-00758-w, 2022.
Terranova, O. G., Gariano, S. L., Bruno, C., Greco, R., Pellegrino, A. D., and Iovine, G. G. R.: Landslide-risk scenario of the Costa Viola mountain ridge (Calabria, Southern Italy), J. Maps, 12, 261–270, https://doi.org/10.1080/17445647.2016.1195300, 2016.
van der Schrier, G., Allan, R. P., Ossó, A., Sousa, P. M., Van de Vyver, H., Van Schaeybroeck, B., Coscarelli, R., Pasqua, A. A., Petrucci, O., Curley, M., Mietus, M., Filipiak, J., Štěpánek, P., Zahradníček, P., Brázdil, R., Řezníčková, L., van den Besselaar, E. J. M., Trigo, R., and Aguilar, E.: The 1921 European drought: impacts, reconstruction and drivers, Clim. Past, 17, 2201–2221, https://doi.org/10.5194/cp-17-2201-2021, 2021.
Vennari, C., Gariano, S. L., Antronico, L., Brunetti, M. T., Iovine, G., Peruccacci, S., Terranova, O., and Guzzetti, F.: Rainfall thresholds for shallow landslide occurrence in Calabria, southern Italy, Nat. Hazards Earth Syst. Sci., 14, 317–330, https://doi.org/10.5194/nhess-14-317-2014, 2014.
Short summary
Long-term changes in rainfall conditions triggering landslides in Calabria (Southern Italy) over 1921–2020 are analysed through a dynamic approach in rainfall threshold definition. Shifts in seasonality and a decreasing trend in triggering rainfall are observed over the years, suggesting an increased propensity of the territory to generate landslides, even with less severe triggering rainfall in recent decades. The work highlights the essential role of landslide data collection and archiving.
Long-term changes in rainfall conditions triggering landslides in Calabria (Southern Italy) over...
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