Construction of a Seismotectonic Model: The Case of Italy

Meletti, Carlo; Patacca, Etta; Scandone, Paolo

doi:10.1007/978-3-0348-8415-0_2

Cited by 68 publications

(111 citation statements)

References 53 publications

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“…In the present study, the used seismic sources are wide seismogenic zones (SZs), in agreement with the previous zonations [ZS4 by Meletti et al (2000) and ZS9 by Meletti et al (2008)] used for the Italian seismic hazard maps (Stucchi et al, 2011).…”

Section: Zonations Geometry Definitionsupporting

confidence: 88%

Seismic Hazard Assessment

Dowrick

2003

Earthquake Risk Reduction

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Section: Zonations Geometry Definitionsupporting

confidence: 88%

Seismic Hazard Assessment

Dowrick

2003

Earthquake Risk Reduction

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“…For the earthquakes since 1900 (instrumental age), the focal depth, when available, is reported, too. Whereas hypocentral depth can play an important role in determining the ground response, almost all the earthquakes listed in Table 1 are reasonably crustal earthquakes (depth less than 30 km), according to the seismotectonic framework of Italy (Meletti et al, 2000). As an example of the possible influence of hypocentral depth, in the Emilia 2012 seismic sequence the first mainshock (20 May) produced a greater number of ground effects than the second mainshock (29 May), although the two shocks had almost the same magnitude (5.9 vs. 5.8, respectively) and the same focal mechanism (reverse).…”

Section: Descriptive Statisticsmentioning

confidence: 99%

Earthquake-induced ground failures in Italy from a reviewed database

Martino

Prestininzi

Romeo

2014

Nat. Hazards Earth Syst. Sci.

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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.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.

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“…The 1802 is the main event of the zone 907 of the seismogenic zonation ZS9 (Meletti et al 2008), which represents a reduced legacy of the former zone 9 in the ZS4 (Meletti et al 2000) (Figs. 2, 3), used by the Seismotectonics and Seismic Hazard Assessment of the Mediterranean Basin-SESAME project (Jiménez et al 2001), too.…”

Section: Seismogenic Modelsmentioning

confidence: 99%

The 12 May 1802 earthquake (N Italy) in its historical and seismological context

Albini

Rovida

2010

J Seismol

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The Mw 5.7 earthquake that occurred on 12 May 1802 is the only one with Mw ≥ 5.5 located west of Lake Garda in the centralnorthern part of the Po Plain, Northern Italy, and the strongest event located in the seismic zone 907 of the ZS9 seismogenic zonation of Italy. Current parametric earthquake catalogs locate the event not far from important cities (e.g., Milan) and to sites where nuclear power plants were to be built in the 1980s or could be built in a near future. Although the earthquake parameters seemed sufficiently well constrained, a detailed investigation of documentary sources was performed, in repositories storing the documents of the Napoleonic departments to which the area affected by the earthquake belonged at that time. In the surviving archival series, we found the officers' correspondence on all the administrative aspects raised by the earthquake. The newly collected records allowed the authors to significantly increase the number of macroseismic intensity data, including new observations in the most damaged area. The results have been then interpreted in terms of both Mercalli-CancaniSieberg and EMS98 macroseismic scales. The P. Albini (B) · A. Rovida Sezione di Milano-Pavia, Istituto Nazionale di Geofisica e Vulcanologia, Via E. Bassini 15, 20133 Milan, Italy e-mail: albini@mi.ingv.it earthquake parameters were derived applying two different methods in order to get two independent estimates. Earthquake location is confirmed, although the still scarce data available in the area to the east of the epicenter do not permit to reduce the uncertainty to a minimum. According to the Boxer method, the magnitude is now slightly higher, and the source model shows a good agreement with the tectonic setting of the area.

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Construction of a Seismotectonic Model: The Case of Italy

Cited by 68 publications

References 53 publications

Seismic Hazard Assessment

Seismic Hazard Assessment

Earthquake-induced ground failures in Italy from a reviewed database

The 12 May 1802 earthquake (N Italy) in its historical and seismological context

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