Inferences on the geometry of the Nazca plate in northwestern Perú based on data collected by a local seismograph network

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dc.contributor.authorTavera, Hernando
dc.contributor.authorVilca, Renzo
dc.contributor.authorMarín, Gloria
dc.coverage.spatialPerú
dc.date.accessioned2018-07-25T17:51:04Z
dc.date.available2018-07-25T17:51:04Z
dc.date.issued2006-01
dc.description.abstractIn Central and Southern Peru, local and teleseismic data allow having insights on the Wadati-Benioff zone (WBZ) geometry. In the region of Northern Perú, only rough estimates of the WBZ geometry have been proposed, and were obtained using teleseismic data due to the reduced number of mb≥4.0-magnitude earthquakes available. The installation of a local seismic network in the NW border of Northern Perú, allowed the recording of a large number of earthquakes with magnitudes ranging from 1.8 to 4.1 ML, and maximum depths of 120 km., distributed over the area where the occurrence of earthquakes with magnitudes > 4.0 is scarce. In a vertical section, oriented N70˚E earthquakes are distributed along a 10° dipping plane from the trench. Landwards from the coastline, the dip angle increases to 28°. These results allow a high resolution definition of the Nazca plate geometry in NW Perú. Focal mechanisms computed for 22 earthquakes located between 50 and 120 km depth beneath the network suggest the development of deformation processes in direction parallel to the convergence Nazca plate direction.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationTavera, H., Vilca, R., & Marín, G. (2006). Inferences on the geometry of the Nazca plate in northwestern Perú based on data collected by a local seismograph network.==$Earth Sciences Research Journal, 10$==(1), 15-24.es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalEarth Sciences Research Journales_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/2102
dc.language.isoenges_ES
dc.publisherUniversidad Nacional de Colombiaes_ES
dc.relation.ispartofurn:issn:1794-6190
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttps://creativecommons.org/licences/by/4.0/es_ES
dc.subjectNazca Platees_ES
dc.subjectSubductiones_ES
dc.subjectDouble seismic zonees_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.00es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.04es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.06es_ES
dc.titleInferences on the geometry of the Nazca plate in northwestern Perú based on data collected by a local seismograph networkes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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