NHESS Natural Hazards and Earth System Sciences NHESS Nat. Hazards Earth Syst. Sci. 1684-9981 Copernicus Publications Göttingen, Germany 10.5194/nhess-13-949-2013 Landslide susceptibility assessment in the Peloritani Mts. (Sicily, Italy) and clues for tectonic control of relief processes De Guidi G. 1 Scudero S. 1 University of Catania, Department of Biological, Geological and Environmental Sciences, Earth Science Section, Corso Italia 57, 95129, Catania, Italy 18 04 2013 13 4 949 963 Copyright: © 2013 G. De Guidi 2013 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://nhess.copernicus.org/articles/13/949/2013/nhess-13-949-2013.html The full text article is available as a PDF file from https://nhess.copernicus.org/articles/13/949/2013/nhess-13-949-2013.pdf

Many destructive shallow landslides hit villages in the Peloritani Mountains area (Sicily, Italy) on 1 October 2009 after heavy rainfall. The collection of several types of spatial data, together with a landslide inventory, allows the assessment of the landslide susceptibility by applying a statistical technique. The susceptibility model was validated by performing an analysis in a test area using independent landslide information, the results being able to correctly predict more than 70% of the landslides. <br><br> Furthermore, the susceptibility analysis allowed the identification of which combinations of classes, within the different factors, have greater relevance in slope instability, and afterwards associating the most unstable combinations (with a short–medium term incidence) with the endogenic processes acting in the area (huge regional uplift, fault activity). Geological and tectonic history are believed to be key to interpreting morphological processes and landscape evolution. Recent tectonic activity was found to be a very important controlling factor in landscape evolution. A geomorphological model of cyclical relief evolution is proposed in which endogenic processes are directly linked to superficial processes. <br><br> The results are relevant both to risk reduction and the understanding of active geological dynamics.

 References Agliardi, F., Zanchi, A., and Crosta, G. B.: Tectonic vs. gravitational morphostructures in the central Eastern Alps (Italy): Constraints on the recent evolution of the mountain range, Tectonophys., 474, 250–270, 2009. Agnesi, V., Rasà, R., Puglisi, C., Gioè, C., Privitera, B., Cappadonia, C., Conoscenti, C., Pino, P., and Rotigliano, E.: La franosità diffusa dell'1 Ottobre 2009 nel territorio ionico-peloritano della Provincia di Messina: stato delle indagini e prime considerazioni sulle dinamiche geomorfiche attivate, Geologi di Sicilia, 23–30, 2009. Amodio-Morelli, L., Bonardi, G., Colonna, V., Dietrich, D., Giunta, G., Ippolito, F., Liguori, V., Lorenzoni, S., Paglionico, A., Perrone, V., Piccarreta, G., Russo, M., Scandone, P., Zanettin-Lorenzoni, E., and Zuppetta, A.: L'Arco Calabro-peloritano nell'orogene appenninico-maghrebide, Mem. Soc. Geol. It., 17, 1–60, 1976. Antonioli, F., Kershaw, S., Rust, D., and Verrubbi, V.: Holocene sea-level change in Sicily and its implications for tectonic models: new data from the Taormina area, northeast Sicily, Mar. Geol., 196, 53–71, 2003. Antonioli, F., Kershaw, S., Renda, P., Rust, D., Belluomini, G., Cerasoli, M., Radtke, U., and Silenzi, S.: Elevation of the last interglacial highstand in Sicily (Italy): A benchmark of coastal tectonics, Q. Int., 145–146, 3–18, 2006. Antonioli, F., Ferranti, L., Fontana, A., Amorosi, A., Bondesan, A., Braitenberg, C., Dutton, A., Fontolan, G., Furlani, S., Lambeck, K., Mastronuzzi, G., Monaco, C., Spada, G., and Stocchi, P.: Holocene relative sea-level changes and vertical movements along the Italian and Istrian coastlines, Q. Int., 206, 102–133, 2009. APAT, Servizio Geologico d'Italia, Dipartimento Difesa del Suolo: Note illustrative della Carta Geologica d'Italia alla scala 1:50.000, Foglio 601 Messina. Reggio di Calabria, S.EL.CA, Firenze, 2008. APAT, Servizio Geologico d'Italia, Dipartimento Difesa del Suolo: Note illustrative della Carta Geologica d'Italia alla scala 1:50.000, Foglio 613 Taormina, S.EL.CA, Firenze, 2010. Basile, G.: Evento del 1 Ottobre 2009, Carta dei dissesti, Dipartimento Regionale della Protezione Civile, Sicilia, 2010. Bieniawski, Z.T.: The geomechanics classification in rock engineering applications. Proceedings of 4th International Congress on Rock Mechanics, 2–8 September 1979. Montreux, Switzerland, 1979. Blahut, J., van Westen, C. J., and Sterlacchini, S.: Analysis of landslide inventories for accurate prediction of debris-flow source areas, Geomorphology, 119, 36–51, 2010. Bonardi, G., Cello, G., Perrone, V., Tortorici, L., Turco, E., and Zuppetta, A.: The evolution of the northern sector of the Calabria-Peloritani arc in a semiquantitative palynspastic restoration, Boll. Soc. Geol. It., 101, 259–284, 1982. Bonardi, G., de Capoa, P., Di Staso, A., Martin-Martin, M., Martin-Rojas, I., Perrone, V., Tent-Manclus, J.E.: New constraints to the geodynamic evolution of the southern sector of the Calabria–Peloritani Arc (Italy), C. R. Geosci., 334, 423-430, 1982. Borrelli, L., Greco, R., and Gullà, G.: Weathering grade of rock masses as a predisposing factor to slope instabilities: Reconnaissance and control procedures, Geomorphology, 84, 158–175, 2007. Brenning, A.: Spatial prediction models for landslide hazards: review, comparison and evaluation, Nat. Hazards Earth Syst. Sci., 5, 853–862, <a href="http://dx.doi.org/10.5194/nhess-5-853-2005">https://doi.org/10.5194/nhess-5-853-2005</a>, 2005. Burbank, D. W.: Rates of erosion and their implications for exhumation, Mineral. Mag., 66/1, 25–52, 2002. Burbank, D. W. and Pinter, N.: Landscape evolution: the interactions of tectonics and surface processes, Basin Res., 11, 1–6, 1999. Calcaterra, D. and Parise, M.: Landslide types and their relationships with weathering in a Calabrian basin, southern Italy, Bull. Eng. Geol. Environ., 64, 193–207, 2005. Carrara, A., Cardinali, M., Detti, R., Guzzetti, F., Pasqui, V., and Reichenbach, P.: GIS techinques and statistical models in evalueting landslide hazard, Earth Process. Surf. Landforms, 16, 427–445, 1991. Carrara, A., Guzetti, F., Cardinali, M., and Reichenbach, P.: Use of GIS Technology in the Prediction and Monitoring of Landslide Hazard, Nat. Hazards, 20, 117–135, 1999. Cascini, L.: Applicability of landslide susceptibility and hazard zoning at different scales, Eng. Geol., 102, 164–177, 2008. Catalano, S. and De Guidi, G.: Late Quaternary uplift of northeastern Sicily: relation with the active normal faulting deformation, J. Geodynam., 36, 445–467, 2003. Catalano, S., De Guidi, G., Monaco, C., Tortorici, G., and Tortorici, L.: Long-term behaviour of the late Quaternary normal faults in the Straits of Messina area (Calabrian arc): structural and morphological constraints, Q. Int., 101/102, 81–91, 2003. Catalano, S., De Guidi, G., Monaco, C., Tortorici, G., and Tortorici, L.: Active faulting and seismicity along the Siculo-Calabrian Rift Zone (southern Italy), Tectonophys., 453, 177–192, 2008. Cevik, E. and Topal, T.: GIS-based landslide susceptibility mapping for a problematic segment of the natural gas pipeline, Hendek (Turkey), Environ. Geol., 44, 949–962, 2003. Chung, C. F. and Fabbri, A. G.: Validation of Spatial Prediction Models for Landslide Hazard Mapping, Nat. Hazards, 30, 451–472, 2003. Claessens, L., Schoorl, J. M., and Veldkamp, A.: Modelling the location of shallow landslides and their effects on landscape dynamics in large watersheds: An application for Northern New Zealand, Geomorphology, 87, 16–27, 2007. Cyr, A. J., Granger, D. E., Olivetti, V., and Molin, P.: Quantifying rock uplift rates using channel steepness and cosmogenic nuclide–determined erosion rates: Examples from northern and southern Italy, Lithosphere, 2/3, 188–198, 2010. D'Agostino, N. and Selvaggi, G.: Crustal motion along the Eurasia-Nubia boundary in the Calabrian Arc and Sicily and active extension in the Messina Straits from GPS measurements, J. Geophys. Res., 109, B11402, <a href="http://dx.doi.org/10.1029/2004JB002998">https://doi.org/10.1029/2004JB002998</a>, 2004. Dai, F. C. and Lee, F.: A Spatiotemporal probabilistic modeling of storm-induced shallow landsliding using aerial photograps and logistic regression, Earth Surf. Proc. Land., 28, 527–545, 2003. Deb, S. K. and El-Kadi, A. I.: Susceptibility assessment of shallow landslides on Oahu, Hawaii, under extreme-rainfall events, Geomorphology, 108, 129–233, 2009. De Gregorio, S., Rotolo, S. G., and Villa, I. M.: Geochronology of the medium to high-grade metamorphic units of the Peloritani Mts., Sicily, Int. J. Earth Sci., 92, 852–872, 2003. De Guidi, G., Catalano, S., Monaco, C., and Tortorici, L.: Morphological evidence of Holocene coseismic deformation in the Taormina region (NE Sicily), J. Geodynam., 36, 193–211, 2003. Deere, D. U. and Miller, R. P.: Engineering classification and index properties for intact rock, Air Force Weapons Laboratory Technical Report, AFWL-TR-65-116, 277 pp. 1966. Densmore, A. L., Ellis, M. A., and Anderson, R. S.: Landsliding and the evolution of normal-fault-bounded mountains, J. Geophy. Res., 103, 15203–15219, 1998. Dietrich, W. E., Dunne, T., Humphrey, N. F., and Reid, L. M.: Construction of sediment budgets for drainage basins, Sediment Budgets and routing in forested drainage basins, Proceedings of the Symposium; 31 May – 1 June 1982; Corvallis, Oregon. Gen. Tech. Rep. PNW-141. Portland, Oregon: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, 5–23, 1982. Falaschi, F., Giacomelli, F., Federici, P. R., Puccinelli, A., D'Amato Avanzi, G., Pochini, A., and Ribolini, A.: Logistic regression versus artificial neural networks: landslide susceptibility evaluation in a sample area of the Serchio River valley, Italy, Nat. Hazards, 50, 551–569, 2009. Falconi, L., Campolo, D., Leoni, G., Lumaca, S., and Puglisi, C.: Geomorphology hazard assessment of Giampilieri and Briga river basins after the rainfall event on the October 1, 2009 (Sicily, Italy), The Second World Landslide Forum, "Putting science into practice". Global Promotion Committee of the International Programme on Landslides (IPL), Rome, Italy, 2011. Federici, P. R., Puccinelli, A., Cantarelli, E., Casarosa, N., D'Amato Avanzi, G., Falaschi, F., Giannecchini, R., Pochini, A., Ribolini, A., Bottai, M., Salvati, N., and Testi, C.: Multidisciplinary investigations in evaluating landslide susceptibility. An example in the Serchio River valley (Italy), Q. Int., 171–172, 52–63, 2007. Fell, R., Corominas, J., Bonnard, C., Cascini, L., Leroi, E., and Savage, W. Z.: On behalf of the JTC-1 Joint Technical Committee on Landslides and Engineered Slopes: Guidelines for landslide susceptibility, hazard and risk zoning for land use planning, Eng. Geol., 102, 85–98, 2008. Festa, V., Messina, A., Paglionico, A., Piccarreta, G., and Rottura, A.: Pre-Triassic history recorded in the Calabria-Peloritani segmento f the Alpine chain, southern Italy. An overview, Per. Mineral., 73, 57–71, 2004. Giunta, G. and Nigro, F.: Tectono-sedimentary constraints to the Oligocene-to-Miocene evolution of the Peloritani thrust belt (NE Sicily), Tectonophys, 315, 287–299, 1999. Glade, T.: Establishing the frequency and magnitude of landslide-triggering rainstorm events in New Zealand, Environ. Geol., 35, 160–174, 1998. Godt, J. W., Baum R. L., Savage, W. Z., Salciarini, D., Schultz, W. H., and Harp, E. L.: Transient deterministic shallow landslide modeling: Requirements for susceptibility and hazard assessments in a GIS framework, Eng. Geol,. 102, 214–236, 2008. Goldsworthy, M. and Jackson, J.: Active normal fault evolution in Greece revealed by geomorphology and drainage patterns, J. Geol. Soc. London, 157, 967–981, 2000. Goswami, R., Mitchell, N. C., and Brocklehurst, S. H.: Distribution and causes of landslides in eastern Peloritani of NE Sicily and western Aspromonte of SW Calabria, Italy, Geomorphology, 132, 111–122, 2011. Goswami, R., Brocklehurst, S. H., and Mitchell, N. C.: Erosion of a tectonically uplifting coastal landscape, NE Sicily, Italy, Geomorphology, 171–172, 114–126, 2012. Grande, A., Di Vincenzo, G., Prosser, G., and Caggianelli, A.: Direct evidence of Middle Oligocene extension in the Calabria–Peloritani terrane from co-seismic faulting: the pseudotachylyte-bearing shear zones of Palmi (southern Calabria, Italy), T. Nov., 21, 293–303, 2009. Greco, R. and Sorriso-Valvo, M.: Relationships between joint apparent separation, Schmidt hammer rebound value, and distance to faults, in rocky outcrops, Calabria, Southern Italy, Eng. Geol., 78, 309–320, 2005. Guarnieri, P. and Pirrotta, C.: The response of drainage basins to the late Quaternary tectonics in the Sicilian side of the Messina Strait (NE Sicily), Geomorphology, 95, 260–273, 2008. Gullà, G., Antronico, L., Iaquinta, P., and Terranova, O.: Susceptibility and triggering scenarios at a regional scale for shallow landslides, Geomorphology, 99, 39–58, 2008. Günther, A. and Thiel, C.: Combined rock slope stability and shallow landslide susceptibility assessment of the Jasmund cliff area (Rügen Island, Germany), Nat. Hazards Earth Syst. Sci., 9, 687–698, <a href="http://dx.doi.org/10.5194/nhess-9-687-2009">https://doi.org/10.5194/nhess-9-687-2009</a>, 2009. Guzzetti, F., Carrara, A., Cardinali, M., and Reichenbach, P.: Landslide hazard evaluation: a review of current techniques and their application in a multi-scale study, Central Italy, Geomorphology, 31, 181–216, 1999. Guzzetti, F., Reichenbach, P., Cardinali, M., Galli, M., Ardizzone, F.: Probabilistic landslide hazard assessment at the basin scale, Geomorphology, 72, 272–299, 2005. Guzzetti, F., Reichenbach, P., Ardizzone, F., Cardinali, M., and Galli, M.: Estimating the quality of landslide susceptibility models, Geomorphology, 81, 166–184, 2006. Harp, H. L., Reid, M. E., McKenna, J. P., and Michael, J. A.: Mapping of hazard from rainfall-triggered landslides in developing countries: Examples from Honduras and Micronesia, Eng. Geol., 104, 295–311, 2009. Hengl, T.: Finding the right pixel size, Comput. Geosci., 32, 1283–1298, 2006. Heymes, T., Monié, P., Arnaud, N., Pêcher, A., Bouillin, J. P., and Compagnoni, R.: Alpine tectonics in the Calabrian–Peloritan belt (southern Italy): New 40Ar/39Ar data in the Aspromonte Massif area, Lithos 114, 461–472, 2010. Hren, M. T, Hilley, G. E., and Chamberlain, C. P.: The relationship between tectonic uplift and chemical weathering rates in the Washington Cascades: field measurements and model predictions, Am. J. Sci., 307, 1041–1063, 2007. ISRM, International Society on Rock Mechanics: Basic geotechnical description of rock masses, Int. J. Rock Mech. Min. Sci. Geomech. Ab., 18, 85–110, 1981. Keller, E. A. and Pinter, N.: Active Tectonics: Earthquakes, Uplift, and Landscape, Prentice Hall, Upper Saddle River, New Jersey, 338 pp., 1996. Korup, O., Clague, J. J., Hermanns, R. L., Hewitt, K., Strom, A. L., and Weidinger, J. T.: Giant landslides, topography, and erosion, Earth Pl. Sci. Lett., 261, 578–589, 2007. Korup, O., Densmore, A. L., and Schlunegger, G.: The role of landslides in mountain range evolution, Geomorphology, 102, 77–90, 2010. Lacerda, W.: Landslide initiation in saprolite and colluvium in southern Brazil: Field and laboratory observations, Geomorphology, 87, 104–119, 2007. Lambeck, K., Antonioli, F., Purcell, A., and Silenzi, S.: Sea-level change along the Italian coast for the past 10 000 yr, Quaternary Sci. Rev., 23 , 1567–1598, 2004. Le Pera, E. and Sorriso-Valvo, M.: Weathering and morphogenesis in a Mediterranean climate, Calabria, Italy, Geomorphology, 34, 251–270, 2000. Marques, E. A. G., Barroso, E. V., Menez Filho, A. P., and Vargas, Jr. E. A.: Weathering zones on metamorphic rocks from Rio de Janeiro–Physical, mineralogical and geomechanical characterization, Eng. Geol., 111, 1–18, 2010. Maugeri, M. and Motta, E.: Effects of Heavy Rainfalls on Slope Behaviour: The October 1, 2009 Disaster of Messina (Italy), Geotechnics/Earthquake Geotechnics towards Global Sustainability, Kyoto, Japan, 12–14 January, 2010. Monaco, C. and Tortorici, L.: Active faulting in the Calabrian arc and eastern Sicily, J. Geodynam., 29, 407–424, 2000. Monaco, C., Tortorici, L., Nicolich, R., Cernobori, L., and Costa, M.: From collisional to rifted basins: an example from the southern Calabrian arc (Italy), Tectonophys., 266, 233–249, 1996. Monaco, C., Tapponier, P., Tortorici, L., and Gyllot, P. Y.: Late Quaternary slip rates on the Acireale-Piedimonte normal faults and tectonic origin of Mt. Etna (Sicily), Earth Planet. Sci. Lett., 147, 125–139, 1997. Montenat, C., Barrier, P., and d'Estevou, P.: Some aspects of the recent tectonics in the Strait of Messina, Italy, Tectonophys., 194, 203–215, 1991. Montgomery, D. R. and Brandon, M., T.: Topographic controls on erosion rates in tectonically active mountain ranges, Earth Pl. Sci. Lett., 201, 481–489, 2002. Morgagni, A., Marsigli, M., and Todini, E.: Assessment of soil erosion in a number of small ephemeral streams in Calabria and Sicily, Proc. Workshop on Soil Erosion in Semi-arid Mediterranean Areas, European Society for Soil Conservation, Centro Studi per l'Economia applicata all'Ingegneria, 137–148, 1993. Nandi, A. and Shakoor, A.: A GIS-based landslide susceptibility evaluation using bivariate and multivariate statistical analyses, Eng. Geol., 110, 11–20, 2009. Pellegrino, A. and Prestininzi, A.: Impact of weathering on the geomechanical properties of rocks along thermal–metamorphic contact belts and morpho-evolutionary processes: The deep-seated gravitational slope deformations of Mt. Granieri–Salincriti (Calabria–Italy), Geomorphology, 87, 176–195, 2007. Piacentini, D., Troiani, F., Soldati, M., Notarnicola, C., Savelli, D., Schneiderbauer, S., and Strada, C.: Statistical analysis for assessing shallow-landslide susceptibility in South Tyrol (south-eastern Alps, Italy), Geomorphology, 151/152, 196–206, 2012. Poli, S. and Sterlacchini, S.: Landslide Representation Strategies in Susceptibility Studies using Weights-of-Evidence Modeling Technique, Nat. Resources Res., 16, 121–134, 2007. Riebe, C. S., Kirchner, J. W., Granger, D. E., and Finkel, R. C.: Strong tectonic and weak climatic control of long-term chemical weathering rates, Geology, 29/ 6, 511–514, 2001. Ruff, M. and Czurda, K.: Landslide susceptibility analysis with a heuristic approach in the Eastern Alps (Vorarlberg, Austria), Geomorphology, 94, 314–324, 2008. Ruff, M. and Rohn, J.: Susceptibility analysis for slides and rockfall: an example from the Northern Calcareous Alps (Vorarlberg, Austria), Environ. Geol., 55, 441–452, 2008. Rust, D. and Kershaw, S.: Holocene tectonic uplift patterns in northeastern Sicily: evidence from marine notches in coastal outcrops, Mar. Geol., 167, 105–126, 2000. Sabato, L. and Tropeano, M.: Fiumara: a kind of high hazard river, Phys. Chem. Earth., 29, 717–715, 2004. Salciarini, D., Godt, J. W., Savage, W. Z., Conversini, P., Baum, R. L., and Michael, J. A.: Modeling regional initiation of rainfall-induced shallow landslides in the eastern Umbria Region of central Italy, Landslides, 3, 181–194, 2006. Salciarini, D., Godt, J. W., Savage, W. Z., Baum, R. L., and Conversini, P.: Modeling landslide recurrence in Seattle, Washington, USA, Eng. Geol., 102, 227–237, 2008. Santangelo, M., Gioia, D., Fiorucci, F., Cardinali, M., Guzzetti, F., and Schiattarelli, M.: Relationships between mass movements and tectonic uplift in the upper Sinni River valley, Calabria-Lucania border, Southern Italy, Geophys. Res. Abstr., 13, EGU2011-11674, EGU General Assembly 2011, Vienna, Austria, 2011. Singh, L. P., van Westen, C. J., Champati Ray, P. K., and Pasquall, P.: Accuracy assessment of InSAR derived inputmaps for landslide susceptibility analysis: a case study from the Swiss Alps, Landslides, 2, 221–228, 2005. Scudero, S. and De Guidi, G.: Landslide processes and susceptibility mapping in NE Sicily, Italy. The Second World Landslide Forum, "Putting science into practice", Global Promotion Committee of the International Programme on Landslides (IPL), Rome, Italy, 2011. Snyder, N. P., Whipple, K. X., Tucker, G. E., and Merritts, D. J.: Interaction between onshore bedrock-channel incision and nearshore wave-base erosion forced by eustasy and tectonics, Basin Res., 14, 105–127, 2002. Snyder, N. P., Whipple, K. X., Tucker, G. E., and Merritts, D. J.: Channel response to tectonic forcing: field analysis of stream morphology and hydrology in the Mendocino triple junction region, northern California, Geomorphology, 53, 97–127, 2003. Somma, R., Messina, A., and Mazzoli, S.: Syn-orogenic extension in the Peloritani Alpine Thrust Belt (NE Sicily, Italy): Evidence from the Alì Unit, C. R. Geosci., 337, 861–871, 2005. Stewart, I. S., Cundy, A., Kershaw, S., and Firth, C.: Holocene coastal uplift in the Taormina area, northeastern Sicily: Implications for the southern prolongation of the Calabrian seismogenic belt, J. Geodynam., 24/14, 37–50, 1997. Süzen, M. L. and Doyuran, V.: A comparison of the GIS based landslide susceptibility assessment methods: multivariate versus bivariate, Environ. Geol., 45, 665–679, 2004. Tortorici, L., Monaco, C., Tansi, C., and Cocina, O.: Recent and active tectonics in the Calabrian arc (Southern Italy), Tectonophys., 243, 37–55, 1995. van Westen, C. J.: Statistical landslide hazard analysis. In: Application guide, ILWIS 2.1 for Windows, ITC, Enschede, The Netherlands, 73–84, 1997. van Westen, C. J., Rengers, N., Terlien, M. T. J., and Soeters, R.: Prediction of the occurrence of slope instability phenomena through GIS-based hazard zonation, Geol. Rundsch., 86, 404–414, 1997. van Westen, C. J., Rengers, N., and Soeters, R.: Use of geomorphological information in indirect landslide susceptibility assessment, Nat. Hazards, 30, 399–419, 2003. van Westen, C. J., van Asch, T. W. J., and Soeters, R.: Landslide hazard and risk zonation – why is it still so difficult?, Bull. Eng. Geol. Environ., 65, 167–184, 2006. van Westen, C. J., Castellanos, E., and Kuriakose, S. L.: Spatial data for landslide susceptibility, hazard, and vulnerability assessment: An overview, Eng. Geol., 102, 112–131, 2008. Vecchio, A.: Analisi delle caratteristiche idrauliche del bacino idrografico del T. Giampilieri: valutazione del "rialzo idraulico" in sezioni ostruite (evento 1 Ottobre 2009), University of Catania, 2011. Westaway, R.: Quaternary uplift of Southern Italy, J. Geophys. Res., 98, 21741–21772, 1993. Yalcin, A.: GIS-based landslide susceptibility mapping using analytical hierarchy process and bivariate statistics in Ardesen (Turkey): Comparisons of results and confirmations, Catena, 72, 1–121, 2008.