Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1847
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dc.contributor.authorallAlessandrini, B.; Istituto Nazionale di Geofisica, Roma, Italyen
dc.contributor.authorallCattaneo, M.; Dister, Sezione Geofisica, Università di Genova, Italyen
dc.contributor.authorallDemartin, M.; C.N.R., Istituto di Ricerca sul Rischio Sismico, Milano, Italyen
dc.contributor.authorallGasperini, M.; C.N.R., Istituto di Geologia Marina, Bologna, Italyen
dc.contributor.authorallLanza, V.; Dister, Sezione Geofisica, Università di Genova, Italyen
dc.date.accessioned2006-12-06T11:15:38Zen
dc.date.available2006-12-06T11:15:38Zen
dc.date.issued1994-09en
dc.identifier.urihttp://hdl.handle.net/2122/1847en
dc.description.abstractWe present a method for hypocentral location which takes into account all three components of ground motion and not only the vertical one, as it is usually done by standard least-square techniques applied to arrival times. Assuming that P-wave particle motion direction corresponds to the propagation direction of the seismic wave, we carried out a simple statistical analysis of ground motion amplitudes, carefully using three-component records. We obtained the azimuth and the emersion angle of the seismic ray, which, added to Pg and Sg arrival times, allowed us to find reliable hypocentral coordinates of some local events by means of a ray-tracing technique. We compared our locations to those obtained using a least-square technique: our polarization method's dependence on the accuracy of the model used (on the contrary, the least-square technique proved to be quite stable with respect to changes in the model's velocity parameters) led us to conclude that polarization data provide coherent information on the true ray-path and can be successfully used for both location procedures and seismic wave propagation studizs in strongly heterogeneous media.en
dc.format.extent3789439 bytesen
dc.format.mimetypeapplication/pdfen
dc.language.isoEnglishen
dc.relation.ispartofseries5/37 (1994)en
dc.subjectP-wave polarization directionen
dc.subjectearthquake locationsen
dc.subjectheterogeneous mediaen
dc.titleA simple P-wave polarization analysis: its application to earthquake locationen
dc.typearticleen
dc.type.QualityControlPeer-revieweden
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysisen
dc.subject.INGV05. General::05.02. Data dissemination::05.02.02. Seismological dataen
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.contributor.authorAlessandrini, B.en
dc.contributor.authorCattaneo, M.en
dc.contributor.authorDemartin, M.en
dc.contributor.authorGasperini, M.en
dc.contributor.authorLanza, V.en
dc.contributor.departmentIstituto Nazionale di Geofisica, Roma, Italyen
dc.contributor.departmentDister, Sezione Geofisica, Università di Genova, Italyen
dc.contributor.departmentC.N.R., Istituto di Ricerca sul Rischio Sismico, Milano, Italyen
dc.contributor.departmentC.N.R., Istituto di Geologia Marina, Bologna, Italyen
dc.contributor.departmentDister, Sezione Geofisica, Università di Genova, Italyen
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 Roma1, Roma, Italia-
crisitem.author.deptIst. Geologia Marina, CNR, Bologna, Italia-
crisitem.author.deptDister, Sezione Geofisica, Università di Genova, Italy-
crisitem.author.orcid0000-0001-6017-8861-
crisitem.author.orcid0000-0002-6231-2427-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent05. General-
Appears in Collections:Annals of Geophysics
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