Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/832
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dc.contributor.authorallJayachandran Nair, G.; Electronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Indiaen
dc.contributor.authorallAbdul Razak, M. M.; Electronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Indiaen
dc.contributor.authorallVenkatesh Prasad, A. G.; Electronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Indiaen
dc.contributor.authorallUnnikrishnan, E.; Electronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Indiaen
dc.date.accessioned2006-02-20T14:35:33Zen
dc.date.available2006-02-20T14:35:33Zen
dc.date.issued2004en
dc.identifier.urihttp://hdl.handle.net/2122/832en
dc.description.abstractA damaging earthquake of Mw 7.7, which struck the Bhuj region of India on January 26, 2001, was followed by a large number of aftershocks. The aftershock data available at Gauribidanur Seismic Array Station (GBA), India, till 869 h following the main shock were compiled. The plot of the aftershocks rate with time was found to be oscillatory decay. There was a sharp decrease of the aftershocks rate in the initial 144 h from the main shock and this paper presents the analysis of the temporal characteristics of aftershock activity during this period. Astatistical best fit for the rate of aftershocks is performed using the generalised Omori’s law and the exponential decay law. The statistical errors for the exponential fit are found to be lower than that of the generalised Omori's fit. The superimposed oscillations present in the aftershock activity are extracted by differencing the observed aftershock activity from the statistical fits. The frequencies of these oscillations are found to be 0.062 h–1, 0.078 h-1, 0.102 h-1, 0.118 h-1, 0.141 h-1, 0.164 h-1, 0.233 h-1 and 0.476 h-1. Some of the plausible causes for this kind of oscillations present in the aftershock activity are also discussed in this paper.en
dc.format.extent1108234 bytesen
dc.format.mimetypeapplication/pdfen
dc.language.isoEnglishen
dc.publisher.nameINGVen
dc.relation.ispartofAnnals of Geophysicsen
dc.relation.ispartofseries4/47 (2004)en
dc.subjectaftershocksen
dc.subjectBhuj earthquakeen
dc.subjectOmori'sLawen
dc.subjectGBA arrayen
dc.subjectLg magnitudeen
dc.titleThe oscillatory behaviour of the aftershocks rate of the 2001 Bhuj earthquake, India: observation and interpretationen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneousen
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.contributor.authorJayachandran Nair, G.en
dc.contributor.authorAbdul Razak, M. M.en
dc.contributor.authorVenkatesh Prasad, A. G.en
dc.contributor.authorUnnikrishnan, E.en
dc.contributor.departmentElectronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Indiaen
dc.contributor.departmentElectronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Indiaen
dc.contributor.departmentElectronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Indiaen
dc.contributor.departmentElectronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Indiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptElectronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India-
crisitem.author.deptElectronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India-
crisitem.author.deptElectronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India-
crisitem.author.deptElectronics and Instrumentation Group, Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India-
crisitem.classification.parent04. Solid Earth-
Appears in Collections:Annals of Geophysics
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