Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Open Access Nat. Hazards Earth Syst. Sci. Discuss., 2, 2597–2637, 2014 Natural Hazards www.nat-hazards-earth-syst-sci-discuss.net/2/2597/2014/ and Earth System doi:10.5194/nhessd-2-2597-2014 © Author(s) 2014. CC Attribution 3.0 License. Sciences Discussions This discussion paper is/has been under review for the journal Natural Hazards and Earth System Sciences (NHESS). Please refer to the corresponding final paper in NHESS if available. Integration of HVSR measures and stratigraphic constraints for seismic microzonation studies: the case of Oliveri (ME) P. Di Stefano, D. Luzio, P. Renda, R. Martorana, P. Capizzi, A. D’Alessandro, N. Messina, G. Napoli, S. Todaro, and G. Zarcone Dipartimento di Scienze della Terra e del Mare – DiSTeM, University of Palermo, Italy Received: 6 March 2014 – Accepted: 1 April 2014 – Published: 10 April 2014 Correspondence to: R. Martorana (raff
[email protected]) Published by Copernicus Publications on behalf of the European Geosciences Union. 2597 Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Abstract Because of its high seismic hazard the urban area of Oliveri has been subject of first level seismic microzonation. The town develops on a large coastal plain made of mixed fluvial/marine sediments, overlapping a complexly deformed substrate. In order to iden- 5 tify points on the area probably suffering relevant site effects and define a preliminary Vs subsurface model for the first level of microzonation, we performed 23 HVSR mea- surements. A clustering technique of continuous signals has been used to optimize the calculation of the HVSR curves.