Damage pattern in historical centres: Isernia, an example in Southern Italy

E. Esposito, L. Laurelli, S. Porfido


As regards the July 26, 1805 earthquake, a detailed study on the damage suffered by the town of Isernia has
been carried out. As a first step in our research, we analyzed a manuscript of the time, in which describes
damage to public buildings, churches and some notable houses caused by the earthquake. In order to identify
such damaged sites, several archival sources and documents from 1816 to 1955 have been examined, on account
of the remarkable changes in toponymy which occurred after 1861 and caused by the 1943 bombing.
Moreover, due to the lack of cartography of the time, a 1875 map or the town has been used and compared
with the land registry maps of a later period. The analysis of the 1805 damage pattern shows that the historical
centre of the Isernia town is divided into three areas whose damage level is fairly differem: such areas are
respectively located in the southern, central and northern part of the town with an increase in damage from
South to North.


southern Apennines;Isernia;historical seismicity;damage pattern

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DOI: https://doi.org/10.4401/ag-4061
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X