Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/6347
DC Field | Value | Language |
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dc.contributor.authorall | de lorenzo, S.; Dipartimento di Geologia e Geofisica & Centro Interdipartimentale per il Rischio Sismico e Vulcanico, Università di Bari, Italy | en |
dc.contributor.authorall | Giampiccolo, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Martinez-Arevalo, C.; Departamento de Volcanología, Museo Nacional de Ciencias Naturales, CSIC, Madrid Spain | en |
dc.contributor.authorall | Patanè, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Romeo, A.; Dipartimento di Geologia e Geofisica & Centro Interdipartimentale per il Rischio Sismico e Vulcanico, Università di Bari, Italy | en |
dc.date.accessioned | 2010-12-14T14:57:59Z | en |
dc.date.available | 2010-12-14T14:57:59Z | en |
dc.date.issued | 2010 | en |
dc.identifier.uri | http://hdl.handle.net/2122/6347 | en |
dc.description.abstract | A crucial point in the analysis of tectonic earthquakes occurring in a volcanic area is the inference of the orientation of the structures along which the ruptures occur. These structures represent zones of weakness which could favor the migration of melt toward the surface and the assessment of their geometry is a fundamental step toward efficient evaluation of volcanic risk. We analyzed a high-quality dataset of 171 lowmagnitude, tectonic earthquakes that occurred at Mt. Etna during the 2002–2003 eruption. We applied a recently developed technique aimed at inferring the source parameters (source size, dip and strike fault) and the intrinsic quality factor Qp of P waves from the inversion of rise times. The technique is based on numerically calibrated relationships among the rise time of first P waves and the source parameters for a circular crack rupturing at a constant velocity. For the most of the events the directivity source effect did not allow us to constrain the fault plane orientation. For a subset of 45 events with well constrained focal mechanisms we were able to constrain the “true” fault plane orientation. The level of resolution of the fault planes was assessed through a non linear analysis based on the random deviates technique. The significance of the retrieved fault plane solutions and the fit of the assumed source model to data were assessed through a χ-square test. Most of the retrieved fault plane solutions agree with the geometrical trend of known surface faults. The inferred source parameters and Qp are in agreement with the results of previous studies | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier | en |
dc.relation.ispartof | Journal of Volcanology and Geothermal Research | en |
dc.relation.ispartofseries | /189(2010) | en |
dc.relation.isversionof | http://hdl.handle.net/2122/5274 | en |
dc.subject | rise time | en |
dc.subject | directivity | en |
dc.title | Fault plane orientations of microearthquakes at Mt. Etna from theinversion of P-wave rise times | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 247-256 | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology | en |
dc.identifier.doi | 10.1016/j.jvolgeores.2009.11.011 | en |
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Res. 109, B07308. doi:10.1029/ 2003JB002577. de Lorenzo, S., Filippucci, M., Giampiccolo, E., Patanè, D., 2006. Intrinsic Qp at Mt. Etna from the inversion of rise times of 2002 microearthquake sequence. Ann. Geophys. 49, 1215–1234. Evans, J.R., Eberhart-Phillips, D., Thurber, C.H., 1994. Users's manual for SIMULPS12 for imaging Vp and Vp/Vs:a derivative of the Thurber tomographic inversion SIMUL3 for local earthquakes and explosions. US Geol. Survey, Open File Report, pp. 94–431. Filippucci,M., de Lorenzo, S., Boschi, E., 2006. Fault plane orientations ofsmall earthquakes of the 1997 Umbria-Marche (Italy) seismic sequence from P-wave polarities and rise times. Geophys. J. Int. 166 (1), 322–338. doi:10.1111/j.1365-246X.2006.02998.x. Giampiccolo, E., D'Amico, S., Patanè, D., Gresta, S., 2007. Attenuation and source parameters of shallow microearthquakes at Mt. Etna volcano (Italy). Bull. Seism. Soc. Am. 97 (1B), 184–197. Gresta, S., Peruzza, L., Slejko, D., Di Stefano, G., 1998. 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Geotherm. Res. 109, 77–98. Patanè, D., Barberi, G., Cocina, O., De Gori, P., Chiarabba, C., 2006. Time-resolved seismic tomography detects magma intrusions at Mount Etna. Science 313, 821–823. Patanè, D., Giampiccolo, E., 2004. Faulting processes and earthquake source parameters at mount etna: state of the art and perspectives. In: Bonaccorso, A., Calvari, S., Coltelli, M., Del Negro, C., Falsaperla, S. (Eds.), Etna Volcano Laboratory. Geophysical monograph series. AGU, pp. 167–189. Press, W.H., Flannery, B.P., Teukolsky, S.A., Vetterling, W.T., 1989. Numerical Recipes, The Art of Scientific Computing (Fortran Version). Cambridge University Press, Cambridge, USA. Rasà, R., Ferrucci, F., Gresta, S., Patanè, D., 1995. Etna: sistema di alimentazione profondo, assetto geostatico locale e bimodalità di funzionamento del vulcano. In: Ferrucci, F., Innocenti, F. (Eds.), Progetto Etna 1993–1995: Pubblicazione Speciale GNV, pp. 145–150. Reasenberg, P., Oppheneimer, D.H., 1985. FPFIT, FPPLOT and FPPAGE: FORTRAN computer program for calculating and displaying earthquake fault-plane solutions. US Geological Survey Report, pp. 85–739. Sato, T., Hirasawa, T., 1973. Body wave spectra from propagating shear cracks. J. Phys. Earth 21, 415–432. Tanguy, J.C., Condomines, C., Kieffer, G., 1997. Evolution of the Mount Etna magma: constraints on the present feeding system and eruptive mechanisms. J. Volcanol. Geotherm. Res. 75, 221–250. Vasco, D.W., Johnson, L.R., 1998. Whole earth structure estimated from seismic arrival times. J. Geophys. Res. 103, 2633–2672. Warren, L.M., Shearer, P.M., 2006. Systematic determination of earthquake rupture directivity and fault planes from analysis of long-period P-wave spectra. Geophys. J. Int. 164, 46–62. Zollo, A., de Lorenzo, S., 2001. Source parameters and three-dimensional attenuation structure from the inversion of microearthquake pulse width data: method and synthetic tests. J. Geophys. Res. 106, 16,287–16,306. | en |
dc.description.obiettivoSpecifico | 3.1. Fisica dei terremoti | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | de lorenzo, S. | en |
dc.contributor.author | Giampiccolo, E. | en |
dc.contributor.author | Martinez-Arevalo, C. | en |
dc.contributor.author | Patanè, D. | en |
dc.contributor.author | Romeo, A. | en |
dc.contributor.department | Dipartimento di Geologia e Geofisica & Centro Interdipartimentale per il Rischio Sismico e Vulcanico, Università di Bari, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | Departamento de Volcanología, Museo Nacional de Ciencias Naturales, CSIC, Madrid Spain | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | Dipartimento di Geologia e Geofisica & Centro Interdipartimentale per il Rischio Sismico e Vulcanico, Università di Bari, Italy | 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 | Dipartimento di Scienze della Terra e Geoambientali, University of Bari, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Departamento de Volcanología, Museo Nacional de Ciencias Naturales, CSIC, Madrid Spain | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Dipartimento di Geologia e Geofisica & Centro Interdipartimentale per il Rischio Sismico e Vulcanico, Università di Bari, Italy | - |
crisitem.author.orcid | 0000-0003-2504-1485 | - |
crisitem.author.orcid | 0000-0001-5203-7436 | - |
crisitem.author.orcid | 0000-0001-9410-5126 | - |
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 | - |
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