Knowledge of the seismic risk in Roman towns comes largely from historical sources, which report, more or less reliably, the damage and the rebuilding works. But the conditions and practices of the real works remain, in fact, poorly known. RECAP aims to explore these building processes from a multi-field interpretation of the archaeological data. In the history of Roman construction, this topic defines a little area of research, although it represents a challenge to understand how a high risk and emergency architecture could have evolved. The project aims to answer one key question: in one specific place, did the ancients come up with anti-seismic practices in order to limit the effects of frequent earthquakes? To develop this approach, it focuses on the unique laboratory of Pompeii. This small town in Campania was the victim of several earthquakes which followed one another at short intervals in the last 16 years of its existence, the first, in 62/63 AD, being particularly devastating. The site will be systematically studied at both the small- and large-scale so as to define the seismic impacts and the ensuing rebuilding work and technical innovations. Two different complexes have been selected as case studies in order to analyse both public and private building sites: the urban water towers, which were a vital element in the town’s functioning, and a large recreational villa, the Villa of Diomedes, that is entirely unpublished. On an urban scale, an overall study will be carried on a whole Regio of Pompeii, in order to characterize the rebuilding works which followed the earthquakes. Then we shall assemble a complete and dynamic overview of the reconstruction processes, involving the mobilisation of men, skills and materials. Beyond the case study of Pompeii, we shall consider the broader issue of the risk memory and awareness of vulnerability in Campania, including both the Vesuvian area and the Phlegrean Fields. These two territories present different geological features and seismic events and, for this reason, have been studied until now in a separate way. We will propose a combined approach of the effects of the earthquakes and bradyseism in both areas. The project is committed to fostering a multiple interdisciplinary approach drawing on the archaeology of construction, sociology, computer sciences, structural engineering and earth sciences It will provide excellent training for students in the joint disciplines of archaeological heritage and seismology, through doctoral internships carried out on the ground. It is planning an important dissemination of the results, which is intended for the scientific community and the general public: web site, with database / GIS and 3 D models on line, two monographs, one article, the proceedings of one international conference and one exhibition. Through the historical dimension, it will enhance public awareness of traditional anti-seismic techniques, in particular the local population in the Campania region which is at considerable risk.