CULTURAL HERITAGE EXPOSED TO SEISMIC HAZARD

    Descrizione 1
    Update date
    Authors

    Gabriele Leoni, Daniele Spizzichino, Valerio Comerci

    Abstract
    Immagine
    Abstract

    As of December 31, 2024, 16,729 cultural heritage sites are located in municipalities classified as areas with a high probability of strong earthquakes, representing 7.3% of the total cultural heritage.

    Description

    This indicator provides the number of cultural heritage sites exposed to seismic hazard across the national territory. The estimate was made using the following input data: architectural, monumental, and archaeological sites from the VIR (Vincoli in Rete) database managed by the ISCR (Istituto Superiore per la Conservazione ed il Restauro); the new seismic classification adopted by regions and autonomous provinces following the OPCM 20 March 2003, No. 3274 and OPCM 28 April 2006, No. 3519.

    Purpose

    To provide an initial overview, at national, regional, and municipal levels, of the distribution of cultural heritage exposed to seismic hazard.

    Policy relevance and utility for users
    It is of national scope or it is applicable to environmental issues at the regional level but of national relevance.
    It is simple and easy to interpret.
    It provides a representative picture of environmental conditions, environmental pressures, and societal responses
    It provides a basis for international comparisons.
    Analytical soundness
    Be theoretically well founded in technical and scientific terms
    Presents reliability and validity of measurement and data collection methods
    Temporal comparability
    Spatial comparability
    Measurability (data)
    Adequately documented and of known quality
    Updated at regular intervals in accordance with reliable procedures
    An “adequate” spatial coverage
    An “appropriate” temporal coverage
    Main regulatory references and objectives

    Implementation by the Regions and Autonomous Provinces of OPCM 20 March 2003, No. 3274 and OPCM 28 April 2006, No. 3519.

    Acts of implementation were completed by 31 January 2020.

    Abruzzo: DGR 29/3/03, n. 438. Basilicata: DCR 19/11/03, n. 731. Calabria: DGR 10/2/04, n. 47. Campania: DGR 7/11/02, n. 5447. Emilia-Romagna: DGR 23/07/18, n. 1164. Friuli-Venezia Giulia: DGR 6/5/10, n. 845. Lazio: DGR 22/5/09, n. 387. Liguria: DGR 17/03/17, n. 216. Lombardia: DGR 11/7/14, n. X/2129 Marche: DGR 29/7/03, n. 1046. Molise: DGR 20/9/06, n. 194. Piemonte: DGR 15 febbraio 2019, n. 17-8404. Puglia: DGR 2/3/04, n. 153. Sardegna: DGR 30/3/04, n. 15/31. Sicilia: DDG 11/03/22, n. 64. Toscana: DGR 26/5/14, n. 421. Trentino-Alto Adige-Bolzano, DGP 6/11/06, n. 4047; Trento, DGP 27/12/12, n. 2919/S049/2020-21.3. Umbria: DGR 18/9/12, n. 1111. Veneto: DGR n. 244 del 09 marzo 2021. Valle d'Aosta: DGR 4/10/13 n. 1603.

    DPSIR
    State
    Impact
    Indicator type
    Descriptive (A)
    References

    -

    Limitations

    The indicator is subject to approximations due to the scale of analysis, which is conducted at the municipal level.

    Further actions

    Future actions aimed at improving this indicator will be carried out by incorporating, where present, seismic microzonation studies on a municipal basis and, where possible, associating expected seismic acceleration values directly with the individual asset. Implementation of the ISCR VIR database.

    Frequenza di rilevazione dei dati
    Annuale
    Fonte dei dati
    ISCR
    ISPRA
    Protezione Civile
    Data availabilty

    Basic data on Italy's cultural heritage can be found and accessed at: http://vincoliinrete.beniculturali.it/VincoliInRete/vir/utente/login

    Spatial coverage

    National, based on municipalities

    Time coverage

    2024

    Processing methodology

    Geostatistical alignment and analysis on a GIS platform of data from various databases.

    Update frequency
    Year
    Qualità dell'informazione

    The information is of national scope, simple, easy to interpret, and provides a solid foundation for international comparisons.

    State
    Undefinable
    Trend
    Undefinable
    State assessment/description

    As of December 31, 2024, 16,729 cultural heritage sites are located in municipalities classified as high seismic risk areas, making up 7.3% of the total cultural heritage. A total of 109,346 cultural heritage sites are located in municipalities in seismic class 1 or 2.

    Trend assessment/description

    Qualitative changes in the indicator can only occur following updates to seismic classification and/or the information on exposed cultural heritage sites. The slight variation in the total number of exposed sites compared to the previous survey arises from corrections to the database, both qualitative (geolocation) and quantitative (integration of site numbers). The seismic classification at the municipal level was updated in September 2024. The trend is not definable.

    Comments

    As of December 31, 2024, 16,729 cultural heritage sites (Table 1) are located in municipalities classified as areas with a high probability of strong earthquakes (zones 1 and 1-2A), representing 7.3% of the total cultural heritage.
    Regions with the highest number of cultural heritage sites in seismic class 1 or 2 municipalities (where strong earthquakes are possible) are:

    Marche: 22,885 sites (9.9%)

    Lazio: 12,139 sites (5.3%)

    Veneto: 11,800 sites (5.1%)

    Campania: 11,331 sites (4.9%)

    Sicily: 7,906 sites (3.4%)

    In total, 109,346 cultural heritage sites are located in municipalities classified as seismic class 1 or 2 (Table 2).
    Municipalities in seismic class 1 with the most cultural heritage sites (over 300) are:

    L'Aquila (714)

    Messina (422)

    Spoleto (419)

    Foligno (353)

    Reggio Calabria (328)

    Benevento (320) (Table 3).

    Graph
    Data
    Headline

    Tabella 1: Numero dei beni culturali per comuni classificati secondo la diversa pericolosità sismica (2024)

    Data source

    Elaborazione ISPRA su dati ISPRA, ISCR, Protezione Civile

    Data legend

    Zona sismica con probabilità di superamento pari al 10% in 50 anni (ag): 1 = ag > 0,25; 2 = 0,15<ag≤0,25; 3 = 0,05<ag≤0,15; 4 = ag≤0,05

    Headline

    Tabella 2: Beni culturali, in classe sismica 1 o 2, per regione (2024)

    Data source

    Elaborazione ISPRA su dati SPRA, ISCR e Protezione Civile

    Data legend

    Zona sismica con probabilità di superamento pari al 10% in 50 anni (ag): 1 = ag > 0,25; 2 = 0,15<ag≤0,25

    Headline

    Tabella 3: Comuni con il maggior numero di beni culturali in classe sismica 1 (2024)

    Data source

    Elaborazione ISPRA su dati ISPRA, ISCR e Protezione Civile

    Thumbnail
    Headline

    Figura 1: Beni culturali per le diverse classi sismiche su base comunale (2024)

    Data source

    Elaborazione ISPRA su dati ISPRA, ISCR e Protezione Civile

    English