In the present work the global features of an historical monument settled in the Abruzzean coastal environment are studied. A chemical-physical-mechanical analysis is performed to achieve the exact values of the structural parameters needed to characterize the masonry, together with a theoretical computation which simulates the global structural behaviour of the church. On the basis of these results, an in situ traffic vibration monitoring has been performed, allowing the correlation between numeric and experimental data, and the development of a correct restoration and maintenance of the temple.