Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4247
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dc.contributor.authorallIbanez, J.; Instituto Andaluz de Geofísica, Universidad de Granada, Campus de Cartuja s/n. 18071 Granada, Spainen
dc.contributor.authorallDel Pezzo, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italiaen
dc.contributor.authorallBengoa, C.; Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentinaen
dc.contributor.authorallCaselli, A.; Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentinaen
dc.contributor.authorallBadi, G.; Facultad de Astronomía y Geofísica, Universidad Nacional de La Plata, Argentinaen
dc.contributor.authorallAlmendros, J.; Instituto Andaluz de Geofísica, Universidad de Granada, Campus de Cartuja s/n. 18071 Granada, Spainen
dc.date.accessioned2008-11-24T15:14:43Zen
dc.date.available2008-11-24T15:14:43Zen
dc.date.issued2008-03-06en
dc.identifier.urihttp://hdl.handle.net/2122/4247en
dc.description.abstractIn the present paper we describe the results of a seismic field survey carried out at Copahue Volcano, Southern Andes, Argentina, using a small-aperture, dense seismic antenna. Copahue Volcano is an active volcano that exhibited a few phreatic eruptions in the last 20 years. The aim of this experiment was to record and classify the background seismic activity of this volcanic area, and locate the sources of local earthquakes and volcanic tremor. Data consist of several volcano-tectonic (VT) earthquakes, and many samples of back-ground seismic noise. We use both ordinary spectral, and multi-spectral techniques to measure the spectral content, and an array technique [Zero Lag Cross Correlation technique] to measure the back-azimuth and apparent slowness of the signals propagating across the array.We locate VT earthquakes using a procedure based on the estimate of slowness vector components and S–P time. VT events are located mainly along the border of the Caviahue caldera lake, positioned at the South-East of Copahue volcano, in a depth interval of 1–3 kmbelow the surface. The background noise shows the presence of many transients with high correlation among the array stations in the frequency band centered at 2.5 Hz. These transients are superimposed to an uncorrelated background seismic signal. Array solutions for these transients show a predominant slowness vector pointing to the exploited geothermal field of “Las Maquinitas” and “Copahue Village”, located about 6 km north of the array site. We interpret this coherent signal as a tremor generated by the activity of the geothermal field.en
dc.language.isoEnglishen
dc.publisher.nameElsevieren
dc.relation.ispartofJournal of Volcanology and Geothermal Researchen
dc.relation.ispartofseries/174 (2008)en
dc.subjectvolcanic seismicityen
dc.subjectvolcanic tremoren
dc.subjectseismic arrayen
dc.subjectvolcano tectonic earthquakesen
dc.titleVolcanic tremor and local earthquakes at Copahue volcanic complex, Southern Andes,en
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber284–294en
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismologyen
dc.identifier.doi10.1016/j.jvolgeores.2008.02.005en
dc.description.obiettivoSpecifico3.1. Fisica dei terremotien
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorIbanez, J.en
dc.contributor.authorDel Pezzo, E.en
dc.contributor.authorBengoa, C.en
dc.contributor.authorCaselli, A.en
dc.contributor.authorBadi, G.en
dc.contributor.authorAlmendros, J.en
dc.contributor.departmentInstituto Andaluz de Geofísica, Universidad de Granada, Campus de Cartuja s/n. 18071 Granada, Spainen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italiaen
dc.contributor.departmentFacultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentinaen
dc.contributor.departmentFacultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentinaen
dc.contributor.departmentFacultad de Astronomía y Geofísica, Universidad Nacional de La Plata, Argentinaen
dc.contributor.departmentInstituto Andaluz de Geofísica, Universidad de Granada, Campus de Cartuja s/n. 18071 Granada, Spainen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptInstituto Andaluz de Geofísica, University of Granada, Granada, Spain,-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia-
crisitem.author.deptFacultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina-
crisitem.author.deptIDEAN-GESVA, Dpto. Cs. Geológicas, FCEN, Universidad de Buenos Aires, Ciudad Universitaria, Pab.2, 1428, Buenos Aires, Argentina-
crisitem.author.deptFacultad de Astronomía y Geofísica, Universidad Nacional de La Plata, Argentina-
crisitem.author.deptInstituto Andaluz de Geofisica, Universidad de Granada, Spain-
crisitem.author.orcid0000-0002-9846-8781-
crisitem.author.orcid0000-0002-6981-5967-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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