GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 2.3 GNGTS 2023 CFTIvisual - The first Italian portal of visual sources on historical earthquakes: method and development strategies M.G. Bianchi 1 , G. Tarabusi 1 , C. Ciuccarelli 1 , M. Maresci 1 , S. Baranello 1,2 , R.C. Taccone 1 , G. Ferrari 1 , CFTI Working Group 1 , D. Di Bucci 3 1 Istituto Nazionale di Geofisica e Vulcanologia, Italy 2 Università degli Studi di Bologna - Dipartimento di Fisica e Astronomia, Italy 3 Dipartimento della Protezione Civile, Italy After three years of work as part of Task 1, Work Package 1 "Terremoti", of the 2019-2021 Agreement “B2” between the Italian Civil Protection Department and INGV, we recently released the first version of CFTIvisual, Atlante delle fonti visive dei terremoti italiani (https://cfti.ingv.it/visual/, Bianchi et al., 2022). The Atlante is a database which, as of today, makes available over 1400 visual sources of various types (engravings, paintings, photographs, etc.) regarding 19th and 20th-century Italian earthquakes, associated with some of the earthquakes studied in CFTI5Med (Guidoboni et al., 2018 and 2019). It also shows these visual sources in a georeferenced form, therefore making them accessible through the WebGIS interface of the Atlas consultation portal. Under this dual functionality, the portal will have a broad range of users, offering valuable data for several disciplinary fields ranging from studies on the extent and nature of damage, scientific observations, the response of institutions, urban planning, earthquake engineering, the history of monumental artistic heritage, and – last but not least – the history of photography (Fanelli and Ferrari, 2022). The focus of this presentation will be on how the data has been structured in relation to the development of the portal, created by the INGV's CFTI Working Group itself using an open source code, which entailed important methodological choices; among these, the choice of visual materials, the priorities for their retrieval, the modes and quality of their georeferencing, as well as their representation and support for users. From this point of view, an attempt has been made to balance the completeness and strictness of the information available with the immediacy of interactive consultation. Special attention has been paid to providing visual sources of documented subjects before and after an earthquake, in the latter case distinguishing between the immediate post-earthquake/emergency and the post-emergency/reconstruction phase, and highlighting the effects on the environment, when present (Baranello et al., 2019). In perspective, this allows us to