THE STROMBOLI GEOPHYSICAL EXPERIMENT. PRELIMINARY REPORT ON WIDE ANGLE REFRACTION SEISMICS AND MORPHOBATHYMETRY OF STROMBOLI ISLAND (SOUTHERN TYRRHENIAN SEA, ITALY) BASED ON INTEGRATED OFFSHORE-ONSHORE DATA ACQUISITION (CRUISE STR06 R/V URANIA)

Ennio MARSELLA$^1$, Paolo FAVALI $^2$, Mario CASTELLANO$^3$, Gemma AIELLO$^1$, Giovanni BORTOLUZZI$^4$, Vincenzo DI FIORE$^1$, Marco LIGI$^4$, Tiziana SGROI$^2$, Francesco FRUGONI$^2$, Domenico PATANE'$^5$, Salvatore PASSARO $^1$, Stefano RUGGIERI$^1$, Valentina FERRANTE$^4$, Paolo SCOTTO DI VETTIMO$^1$, Michele IAVARONE $^1$, Giorgio MANGANO$^6$, Vincenzo AUGUSTI$^3$, Maurizio CIAMPI$^3$, Walter DE CESARE$^3$, Mario LA ROCCA$^3$, Sergio DI PRIMA$^5$, Salvatore RAPISARDA$^5$, Luciano ZUCCARELLO$^5$, Raffaele PLATANIA$^5$, Danilo CONTRAFATTO$^5$, Milena MORETTI$^6$, Aladino GOVONI$^6$, Stefano SPECIALE$^6$, Emanuele MARCHETTI$^7$, Giorgio LACANNA$^7$, Giacomo ULIVIERI$^7$, Riccardo GENCO$^7$, Dimitri ILINSKYI$^8$, Norbert Ralf RINKE$^8$

1. CNR, Istituto per l'Ambiente Marino Costiero, Napoli, Italy
   
2. INGV, Roma-2, Roma, Italy
   
3. INGV, Osservatorio Vesuviano, Napoli, Italy
   
4. CNR, Istituto di Scienze Marine, Bologna, Italy
   
5. INGV, Sezione di Catania, Catania, Italy
   
6. INGV, Centro Nazionale Terremoti, Roma, Italy
   
7. Universita' di Firenze
   
8. GEOPRO Inc.
   

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ISMAR-CNR Cataloging-In-Publication data: ISMAR Bologna Technical Report N.102

The Stromboli geophysical experiment. Preliminary report on wide angle refraction seismics and morphobathymetry of Stromboli island (Southern Tyrrhenian sea, Italy) based on integrated offshore-onshore data acquisition, by E.Marsella, P.Favali, M.Castellano, G.Aiello, G. Bortoluzzi, V. Di Fiore, M.Ligi, T.Sgroi, F.Frugoni, D.Patane', S.Passaro, S.Ruggieri, V.Ferrante, P.Scotto Di Vettimo, M.Iavarone, G.Mangano, V.Augusti, M.Ciampi, W.De Cesare, M.La Rocca, S.Di Prima, S.Rapisarda, L.Zuccarello, R.Platania, D.Contrafatto, M.Moretti, A.Govoni, S.Speciale, E.Marchetti, G.Lacanna, G.Ulivieri, R.Genco, D.Ilinskyi, N.R.Rinke

Includes bibliographical reference and index.
Keywords 1.Stromboli 2.Tyrrhenian Sea 3. Seismic Refraction 4. Geodynamics 5. Volcanology

Abstract - The Stromboli geophysical experiment, performed to acquire onshore and offshore seismic data through a combined on-land and marine network, was finalized to reconstruct the seismic tomography of the volcano and to investigate the deep structures and the location of magma chambers. A detailed swath bathymetry around the volcano has also been acquired by the R/V Urania Multibeam. In particular, high resolution bathymetry of the 'Sciara del Fuoco' area allows to image the present-day seafloor setting of the area involved by the submarine slide of 2002-12-30. During the experiment wide angle refraction seismics was performed all around the Stromboli volcano by a 4 GI-GUN tuned array. The data were recorded by the permanent seismic network of the INGV and 20 temporary stations and 10 OBS deployed on the SE, SW and NE submerged flanks of the volcano after detailed morpho-bathymetric analysis.

Sommario - Vengono presentati i risultati preliminari sull'esperimento di geofisica di Stromboli, con acquisizione integrata di dati geofisici a terra ed a mare intorno all'edificio vulcanico dello Stromboli (Tirreno meridionale) e finalizzato a produrre una tomografia sismica per studiare la sua struttura profonda e l'ubicazione delle camere magmatiche che lo alimentano. Una batimetria di dettaglio dell'edificio sommerso è stata inoltre acquisita utilizzando il Multibeam in dotazione alla R/V Urania . In particolare, la batimetria di alta risoluzione della 'Sciara del Fuoco' ha consentito di ricostruire la morfologia attuale del fondo mare in corrispondenza dell'area interessata dalla frana sottomarina del 2002-30-12. L'esperimento ha prodotto un rilievo di sismica a rifrazione wide angle intorno all'apparato vulcanico utilizzando una sorgente sismica prodotta dalla sincronizzazione di 4 GI-GUN. E' stata utilizzata la rete sismica permanente gestita dall'INGV sul vulcano Stromboli, e 20 stazioni mobili, e 10 OBS deposti sui fondali marini sui fianchi SE e SW e NE dopo un'analisi morfobatimetrica di dettaglio.

Published in the WWW at projects.bo.ismar.cnr.it/MEDITERRANEAN/STROMBOLI/STR06_REP. Available in the PDF formats. We apologize for any problems due in the conversion to HTML. The PDF version is considered the verbatim copy of the document. Copyright ©  2007 by ISMAR-CNR - Via Gobetti 101 40129 Bologna, Italy.

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