Integrated geophysical investigations for seismic zoning in a coastal area of Northern Sicily
| Autor: | P. COSENTINO, V. RIZZO |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1982 |
| Předmět: | |
| Zdroj: | Annals of Geophysics, Vol 35, Iss 1, Pp 177-204 (1982) |
| Druh dokumentu: | article |
| ISSN: | 1593-5213 2037-416X 86576836 |
| DOI: | 10.4401/ag-4677 |
| Popis: | The area, about 225 km2 large, ranging from the Eleuterio river to the S.Leonardo river on the northern coast of Sicily, has suffered many earthquakes inthe past centuries and has for many years recognized as a seismic area. This paperpresents a set of integrated geophysical studies carried out in that area, including:i) a statistical study of the past earthquakes in order to define the earthquake risk(PGV or PGA risk), ii) a set of laboratory density measurements carried out onsamples of rocks (82 samples), Hi) a shallow refraction investigation (290 profiles)in order to study the mechanical properties of such rocks, iv) a deep geoelectricalinvestigation (200 VES) in order to reconstruct the main geological features withparticular regard to the geometrical distribution of the elastic and plasticformations which have been piled up during the complex overthrusting of theSicilian chain, and v) a detailed study of the possible amplifications of thegroundmotions due to the geometry and the mechanical characteristics of theshallow and intermediate rocks. The results, combined wih the knowledge of theregional tectonic features and the locations of the involved seismogenetic volumes,allow the formation of a picture of the seismic responses and the connected seismicrisk |
| Databáze: | Directory of Open Access Journals |
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