1Sapienza University of Rome, Department of Earth Sciences and Research Centre for Geological Risks (CERI), P.le A. Moro 5, 00185, Rome, Italy
2Department of Earth Sciences, Life and Environment, University of Urbino, Italy
Received: 30 Mar 2013 – Published in Nat. Hazards Earth Syst. Sci. Discuss.: 17 May 2013
Abstract. A database (Italian acronym CEDIT) of earthquake-induced ground failures in Italy is presented, and the related content is analysed. The catalogue collects data regarding landslides, liquefaction, ground cracks, surface faulting and ground changes triggered by earthquakes of Mercalli epicentral intensity 8 or greater that occurred in the last millennium in Italy. As of January 2013, the CEDIT database has been available online for public use (http://www.ceri.uniroma1.it/cn/gis.jsp ) and is presently hosted by the website of the Research Centre for Geological Risks (CERI) of the Sapienza University of Rome.
Revised: 16 Feb 2014 – Accepted: 24 Feb 2014 – Published: 10 Apr 2014
Summary statistics of the database content indicate that 14% of the Italian municipalities have experienced at least one earthquake-induced ground failure and that landslides are the most common ground effects (approximately 45%), followed by ground cracks (32%) and liquefaction (18%). The relationships between ground effects and earthquake parameters such as seismic source energy (earthquake magnitude and epicentral intensity), local conditions (site intensity) and source-to-site distances are also analysed. The analysis indicates that liquefaction, surface faulting and ground changes are much more dependent on the earthquake source energy (i.e. magnitude) than landslides and ground cracks. In contrast, the latter effects are triggered at lower site intensities and greater epicentral distances than the other environmental effects.
Martino, S., Prestininzi, A., and Romeo, R. W.: Earthquake-induced ground failures in Italy from a reviewed database, Nat. Hazards Earth Syst. Sci., 14, 799-814, doi:10.5194/nhess-14-799-2014, 2014.