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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/2058
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dc.contributor.authorallMonna, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallFilippi, L.; Dipartimento della Protezione Civile- Ufficio Servizio Sismico Nazionale, Rome, Italyen
dc.contributor.authorallBeranzoli, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallFavali, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.date.accessioned2007-03-06T17:45:01Zen
dc.date.available2007-03-06T17:45:01Zen
dc.date.issued2003-04-11en
dc.identifier.urihttp://hdl.handle.net/2122/2058en
dc.description.abstractHigh-resolution 3-D P and S-wave velocity models of a central sector of the Apennines (Central Italy) are computed by inverting first arrival times from an aftershock sequence (September–December, 1997) following the Mw 5.7 and Mw 6.0 Umbria-Marche earthquakes that occurred on September 26, 1997. The high quality of the data set, especially for the S-wave, allows us to compute 3-D variations in Vp, Vp/Vs and Vp · Vs. The anomalies can be interpreted as lateral changes in rock type and fracturing, which control fluid diffusion and variation in pore pressure. This is in agreement with a poro-elastic view that can be inferred from the spatio-temporal evolution of the seismic sequence.en
dc.format.extent246845 bytesen
dc.format.mimetypeapplication/pdfen
dc.language.isoEnglishen
dc.publisher.nameAmerican Geophysical Unionen
dc.relation.ispartofGeophysical Research Lettersen
dc.relation.ispartofseriesVOL. 30, NO. 7en
dc.subjectPhysical properties of rocksen
dc.subjectSeismicity and seismotectonicsen
dc.titleRock properties of the upper-crust in Central Apennines (Italy) derived from high-resolution 3-D tomographyen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber61-4en
dc.identifier.URLhttp://www.agu.org/pubs/crossref/2003/2002GL016780.shtmlen
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropyen
dc.identifier.doi10.1029/2002GL016780en
dc.relation.referencesAlessandrini, B., L. Filippi, and A. Borgia, Upper-crust tomographic structure of the Central Apennines, Italy, from local earthquakes, Tectonophysics, 339, 479–494, 2001.[CrossRef] Bally, A. W., L. Burbi, C. Cooper, and R. Ghelardoni, Balanced sections and seismic reflection profiles across the Central Apennines, Mem. Soc. Geol. It., 35, 257–310, 1986. Barchi, M. R., A. De Feyter, M. B. Magnani, G. Minelli, G. Pialli, and B. M. Sotera, The structural style of the Umbria-Marche fold and thrust belt, Mem. Soc. Geol. It., 52, 557–578, 1998a. Barchi, M. R., G. Minelli, G. Pialli, and B. M. Sotera, The CROP03 profile: A synthesis of results on deep structures of the Northern Apennines, Mem. Soc. Geol. It., 52, 383–400, 1998b. Benz, H. M., B. A. Chouet, P. B. Dawson, J. C. Kahr, R. A. Page, and J. A. Hole, Three-dimensional P and S wave velocity structure of Redoubt Volcano, Alaska, J. Geophys. Res., 101, 8111–8128, 1996.[AGU] Boncio, P., and G. Lavecchia, A geological model for the Colfiorito earthquakes (September–October 1997, central Italy), J. Seismol, 4, 345–356, 2000.[CrossRef] Boncio, P., F. Ponziani, F. Brozzetti, M. Barchi, G. Lavecchia, and G. Pialli, Seismicity and extensional tectonics in the Northern Umbria-Marche Apennines, Mem. Soc. Geol. It., 52, 539–555, 1998. Cello, G., S. Mazzoli, E. Tondi, and E. Turco, Active tectonics in the Central Appenines and possibile implications for seismic hazard analysis in peninsular Italy, Tectonophysics, 272, 43–68, 1997.[CrossRef] Cocco, M., C. Nostro, and G. Ekstrom, Static stress changes and fault interaction during the 1997 Umbria-Marche earthquake sequence, J. Seismol., 4, 501–516, 2000.[CrossRef] Collettini, C., M. Barchi, C. Pauselli, C. Federico, and G. Pialli, Seismic expression of active extensional faults in northern Umbria (central Italy), J. Geodyn., 29, 309–321, 2000.[CrossRef] Deschamps, A., et al., Spatio-temporal distribution of seismic activity during the Umbria-Marche crisis, 1997, J. Seismol., 4, 377–386, 2000.[CrossRef] Iverson, W. P., B. A. Fahmy, and S. B. Smithson, Vp · Vs from mode-converted P-SV reflections, Geophysics, 54, 843–852, 1989.[CrossRef] Kissling, E., W. L. Ellsworth, D. Eberhart-Phillips, and U. Kradolfer, Initial reference models in local earthquake tomography, J. Geophys. Res., 99, 19,635–19,646, 1994.[AGU] Kissling, E., U. Kradolfer, and H. Maurer, VELEST user's guide-short introduction, technical report, Inst. of Geophys. and Swiss Seismol. Serv., Eidg. Tech. Hochsch., Zurich, 1995. Koch, M., Bootstrap inversion for vertical and lateral variations of the S wave structure and the Vp/Vs-ratio from shallow earthquakes in the Rhinegraben seismic zone, Germany, Tectonophysics, 210, 91–115, 1992.[CrossRef] Lees, J. M., and H. Wu, Poisson's ratio and porosity at Coso geothermal area, California, J. Volcanol. Geotherm. Res., 95, 157–173, 2000.[CrossRef] Michelini, A., D. Spallarossa, M. Cattaneo, A. Govoni, and A. Montanari, The 1997 Umbria-Marche (Italy) earthquake sequence: Tomographic images obtained from data of the GNDT-SSN temporary network, J. Seismol., 4, 415–433, 1997.[CrossRef] Mongelli, F., G. Zito, B. Della Vedova, G. Pellis, P. Squarci, and L. Taffi, Geothermal regime of Italy and surrounding seas, in Exploration of the Deep Continental Crust, edited by V. Ceramak and L. Rybach, pp. 381–394, Springer-Verlag, New York, 1991. Moos, D., and M. D. Zoback, In situ studies of velocity in fractured cristalline rocks, J. Geophys. Res., 88, 2345–2358, 1983.[AGU] Nicholson, C., and D. W. Simpson, Changes in Vp/Vs with depth: Implications for appropriate velocity models, improved earthquake locations, and material properties of the upper crust, Bull Seismol. Soc. Am., 75, 1105–1123, 1985. Nur, A., and J. R. Booker, Aftershocks caused by pore fluid flow?, Science, 175, 885–887, 1972. Okubo, P. G., H. M. Benz, and B. A. Chouet, Imaging the crustal magma source beneath Mauna Loa and Kilauea Volcanoes, Hawaii, Geology, 25, 867–870, 1997.[CrossRef] Paige, C. C., and M. A. Saunders, LSQR: An algorithm for sparse linear equations and sparse least squares, Trans. Math. Software, 8, 43–71, 1982.[CrossRef] Podvin, P., and I. Lecompte, Finite difference computation of travel times in very contrasted velocity models: A massively parallel approach and its associated tools, Geophys. J. Int., 105, 271–284, 1991. Ripepe, M., D. Piccinini, and L. Chiaraluce, Foreshock sequence of the September 26th, 1997 Umbria-Marche earthquakes, J. Seismol, 4, 387–389, 1997.[CrossRef] Robertson, J. D., Carbonate porosity from S/P traveltime ratios, Geophysics, 52, 1346–1354, 1987.[CrossRef] Sanders, C. O., L. D. Nixon, and E. A. Schwartz, Seismological evidence for magmatic and hydrothermal structure in Long Valley caldera from local earthquake attenuation and velocity tomography, J. Geophys. Res., 100, 8311–8326, 1995.[AGU] Schön, J. H., Physical properties of rocks, in Handbook of Geophysical Exploration Seismic Exploration, vol. 18, edited by K. Helbig and S. Treitel, Pergamon, New York, 1996. Tatham, R. H., Vp/Vs and lithology, Geophysics, 47, 336–344, 1982.[CrossRef] Toksöz, M. N., C. H. Cheng, and T. Aytekin, Velocities of seismic waves in porous rock, Geophysics, 41, 621–645, 1976.[CrossRef] Villaseñor, A., H. M. Benz, L. Filippi, G. De Luca, R. Scarpa, G. Patanè, and S. Vinciguerra, Three-dimensional P-wave velocity structure of Mt. Etna, Italy, Geophys. Res. Lett., 25, 1975–1978, 1998.[AGU]en
dc.description.fulltextopenen
dc.contributor.authorMonna, S.en
dc.contributor.authorFilippi, L.en
dc.contributor.authorBeranzoli, L.en
dc.contributor.authorFavali, P.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentDipartimento della Protezione Civile- Ufficio Servizio Sismico Nazionale, Rome, Italyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptDPC - Roma-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.orcid0000-0001-9241-1322-
crisitem.author.orcid0000-0002-2273-3593-
crisitem.author.orcid0000-0002-0810-0263-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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