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1st International Conference of Applied Geophysics for Engineering
October 13-15, 2004
Osservatorio Sismologico - Università di Messina
Messina, Italy

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A Consistency Analysis of Macroseismic Survey with Seismic Vulnerability: The 13 December 1990 Carlentini Earthquake (Sicily)
by
A. Bottari
Osservatorio Sismologico - Di.C.T.A., Università di Messina Via Osservatorio, 4 - 98121 Messina (Italy)
Coauthors: CARVENI P.(2), TERMINI D.(1), TERAMO A.(1), BOTTARI C. (1), BIRRITTA G.(3). (1) Osservatorio Sismologico - Di.C.T.A., Università di Messina Via Osservatorio, 4 - 98121 Messina (Italy) (2) Dipartimento di Scienze Geologiche, Università di Catania Corso Italia, 55- 95129 Catania (Italy); (3) Geologist, Sortino(Siracusa), Italy

A review of the macroseismic study of the 1990 Carlentini earthquake is proposed through a vectorial modelling of the observed intensity distribution and the characterization of the local intensity virtual distribution, related to the maximum shaking area, the geo-structural framework of the seismogenic zone within which the site of Carlentini falls. In particular, detailed surveys have been carried out to determine the causes of some anomalies of a macroeseismic plane, referable, in most cases, to different levels of seismic response of ground and/or to the precariousness of building structures and poor mechanical characteristic of foundation soils as well. This has allowed the preliminary results of amacroseismic survey to be depicted even in terms of determination of the level of epicentral intensity. The obtained results, deduced from the original observed intensity distribution, through exclusively macroseismic and vectorial type procedures, and the consistency as well with some of the more significant studies in literature of the magnitude and seismic moment values, calculated through the felt-area, taken from the intensity local virtual distribution, show the efficacy of the adopted multidisciplinary approach

Date received: September 20, 2004

Copyright © 2004 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # caon-62.