Articles | Volume 23, issue 5
https://doi.org/10.5194/nhess-23-1685-2023
https://doi.org/10.5194/nhess-23-1685-2023
Research article
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03 May 2023
Research article | Highlight paper |  | 03 May 2023

Evaluation of liquefaction triggering potential in Italy: a seismic-hazard-based approach

Simone Barani, Gabriele Ferretti, and Davide Scafidi

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Cited articles

Abraham, J. R., Lai, C. G., and Papageorgiou, A.: Basin-effects observed during the 2012 Emilia earthquake sequence in Northern Italy, Soil Dyn. Earthq. Eng., 78, 230–242, 2015. 
Atkinson, G. M., Finn, W. D. L., and Charlwood, R. G.: Simple computation of liquefaction probability for seismic hazard applications, Earthq. Spectra, 1, 107–123, 1984. 
Barani, S., Spallarossa D., and Bazzurro, P.: Disaggregation of probabilistic ground-motion hazard in Italy”, Bull. Seismol. Soc. Am., 99, 2638–2661, 2009. 
Barani, S., Ferretti, G., and De Ferrari, R.: Incorporating results from seismic microzonation into probabilistic seismic hazard analysis: An example in western Liguria (Italy), Eng. Geol., 267, 105479, https://doi.org/10.1016/j.enggeo.2020.105479, 2020. 
Bozzoni, F., Cantoni, A., De Marco, M. C., and Lai, C. G.: ECLiq: European interactive catalogue of earthquake induced soil liquefaction phenomena, Bull. Earthq. Eng., 19, 4719–4744, 2021. 
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Executive editor
This paper produces a map for all of Italy that classifies different regions in terms of liquefaction triggering potential according to their seismic hazard level. The map MILQ (Mappa del potenziale d’Innesco della LiQuefazione), and the associated data are freely accessible at: www.distav.unige.it/rsni/milq.php. The results can be useful to guide land-use planners in deciding whether liquefaction is a hazard that needs to be considered within the planning processes or not. Furthermore, they can serve as a guide for recommending geological and geotechnical investigations aimed at evaluating liquefaction hazards or, conversely, rule out further studies with a consequent saving in efforts and money.
Short summary
In the present study, we analyze ground-motion hazard maps and hazard disaggregation in order to define areas in Italy where liquefaction triggering due to seismic activity can not be excluded. The final result is a screening map for all of Italy that classifies sites in terms of liquefaction triggering potential according to their seismic hazard level. The map and the associated data are freely accessible at the following web address: www.distav.unige.it/rsni/milq.php.
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