Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/5558| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Tramelli, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
| dc.contributor.authorall | Del Pezzo, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
| dc.contributor.authorall | Fehler, M. C.; Massachusetts Institute of Technology Cambridge, Massachusetts USA | en |
| dc.date.accessioned | 2010-01-13T13:54:38Z | en |
| dc.date.available | 2010-01-13T13:54:38Z | en |
| dc.date.issued | 2009 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/5558 | en |
| dc.description.abstract | In this article we apply a passive scattering-imaging method, derived from the method developed by Nishigami (1991) to data from the coda of the local volcano-tectonic (VT) earthquakes of Mt. Vesuvius. This method provides the space distribution of the strong scatterers together with a rough estimate of their strength. In the development of our method we use a realistic raytracing calculated with a raybending approach in the 3D velocity model of Mt. Vesuvius structure obtained with travel-time inversion. The inversion procedure adopted for the scattering imaging in the present study is based on the conjugate gradient method (CGM). The volume under study is divided into cubic cells with different dimensions in a multiscale approach. We obtain the best resolution (900 m cubic cell size) in the central part of the volume under study (roughly in a radius of 4 km centered in the crater) within a depth of 5 km. We analyzed the coda signals after filtering in two frequency bands, the first centered at 12 Hz and the second at 18 Hz, where most of the seismic energy is concentrated. Results show that most of the strong scatterers are located in the depth range between the surface and 3000 m below the sea level, in correspondence with the crater axis where most of the seismicity occurs. Part of the scatterers are located in the zones characterized by the maximum velocity contrasts. | en |
| dc.language.iso | English | en |
| dc.publisher.name | SEISMOLOGICAL SOC AMER | en |
| dc.relation.ispartof | Bulletin of the Seismological Society of America | en |
| dc.relation.ispartofseries | 3/99 (2009) | en |
| dc.subject | Mt. Vesuvius | en |
| dc.subject | scattering-imaging | en |
| dc.title | 3D Scattering Image of Mt. Vesuvius | en |
| dc.type | article | en |
| dc.description.status | Published | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.description.pagenumber | 1962–1972 | en |
| dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy | en |
| dc.identifier.doi | 10.1785/0120080273 | en |
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Vesuvius, Seism. Res. Lett. 76, no. 3, 345–355. Block, L. V. (1991). Joint hypocenter-velocity inversion of local earthquake arrival time data in two geothermal regions, Ph.D. Dissertation, Massachusetts Institute of Technology, Cambridge. Bruno, P. P., G. Cippitelli, and A. Rapolla (1998). Seismic study of the Mesozoic carbonate basement around Mt. Somma-Vesuvius, Italy, J. Volc. Geoth. Res. 84, 311–322. Capuano, P., P. Gasparini, A. Zollo, J. Virieux, R. Casale, and M. Yeroyanni (2003). The Internal Structure of Mt. Vesuvius, Liguori, Napoli. Chiodini, G., L. Marini, and M. Russo (2001). Geochemical evidence for the existence of high-temperature hydrothermal brines at Vesuvio volcano, Italy, Geochim. Cosmochim. Acta 65, 2129–2147. De Natale, G., C. Troise, F. Pingue, G. Mastrolorenzo, and L. Pappalardo (2006). The Somma-Vesuvius volcano (southern Italy): Structure, dynamics, and hazard evaluation, Earth Sci. Rev. 74, 73–111. Del Pezzo, E., F. Bianco, and G. Saccorotti (2004). 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Deep crustal heterogenity along and around the San Andreas fault system in central California and its relation to the segmentation, J. Geophys. Res. 105, 7983–7998. Paige, C., and M. Saunders (1982). Algorithm 583; LSQR: Sparse linear equations and least-squares problems, TOMS 2, no. 8, 195–209. Revenaugh, J. (1995). A scattered-wave image of subduction beneath the Transverse Ranges, Science 268, 1888–92. Scarpa, R., F. Tronca, F. Bianco, and E. Del Pezzo (2002). High resolution velocity structure beneath Mount Vesuvius from seismic array data, Geophys. Res. Lett. 21, no. 29, 2040. Taira, T., and K. Yomogida (2003). Characteristic of small-scale heterogenities in the Hidaka, Japan, region estimated by coda envelope level, Bull. Seismol. Soc. Am. 93, no. 4, 1531–1541. Thurber, C. (1981). Earth structure and earthquake locations in the Cojote Lake area, central California, Ph. D. Dissertation, Massachusetts Institute of Technology, Cambridge. Tramelli, A., E. Del Pezzo, F. Bianco, and E. Boschi (2006). 3D scattering image of the Campi Flegrei caldera (southern Italy). New hints on the position of the old caldera rim, Phys. Earth Planet. Interiors 155, 269–280. Wegler, U. (2003). Analysis of multiple scattering at Vesuvius volcano, Italy, using data of the TOMOVES active seismic experiment, J. Volcanol. Geotherm. Res. 128, 45–63. Wegler, U. (2004). Diffusion of seismic waves in a thick layer: Theory and application to Vesuvius volcano, J. Geophys. Res. 109, B07303. Wu, R. S., and K. Aki (1988). Introduction: Seismic wave scattering in threedimensionally heterogeneous Earth, Pure Appl. Geophys. 128, 1–6. Zollo, A., L. D’Auria, R. D. Matteis, A. Herrero, J. Virieux, and P. Gasparini (2002). Bayesian estimation of 2D P-velocity models from active seismic arrival time data: Imaging of the shallow structure of Mt Vesuvius (southern Italy), Geophys. J. Int. 151, 566–582. Zollo, A., P. Gasparini, J. Virieux, G. Biella, E. Boschi, P. Capuano, R. de Franco, P. dell’Aversana, R. de Matteis, G. De Natale, G. Iannaccone, I. Guerra, H. Le Meur, and L. Mirabile (1998). An image of Mt. Vesuvius obtained by 2D seismic tomography, J. Volcanol. Geotherm. Res. 82, 161–173. | en |
| dc.description.obiettivoSpecifico | 3.3. Geodinamica e struttura dell'interno della Terra | en |
| dc.description.journalType | JCR Journal | en |
| dc.description.fulltext | reserved | en |
| dc.contributor.author | Tramelli, A. | en |
| dc.contributor.author | Del Pezzo, E. | en |
| dc.contributor.author | Fehler, M. C. | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
| dc.contributor.department | Massachusetts Institute of Technology Cambridge, Massachusetts USA | en |
| item.openairetype | article | - |
| item.cerifentitytype | Publications | - |
| item.languageiso639-1 | en | - |
| item.grantfulltext | restricted | - |
| item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
| item.fulltext | With Fulltext | - |
| crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
| crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
| crisitem.author.dept | Massachusetts Institute of Technology Cambridge, Massachusetts USA | - |
| crisitem.author.orcid | 0000-0001-6259-5730 | - |
| crisitem.author.orcid | 0000-0002-6981-5967 | - |
| crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| crisitem.classification.parent | 04. Solid Earth | - |
| crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| Appears in Collections: | Article published / in press | |
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| TraDel-09.pdf | 666.18 kB | Adobe PDF |
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