Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/8837
DC Field | Value | Language |
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dc.contributor.authorall | Mukhopadhyay, S.; Department of Earth Sciences, IIT Roorkee, Roorkee 247667, India | en |
dc.contributor.authorall | Kumar, A.; Department of Earth Sciences, IIT Roorkee, Roorkee 247667, India | en |
dc.contributor.authorall | Garg, A.; Department of Earth Sciences, IIT Roorkee, Roorkee 247667, India | en |
dc.contributor.authorall | Del Pezzo, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.authorall | Kayal, J. R.; School of Oceanographic Studies, Jadavpur University, Kolkata 700016, India | en |
dc.date.accessioned | 2013-12-05T15:06:25Z | en |
dc.date.available | 2013-12-05T15:06:25Z | en |
dc.date.issued | 2014 | en |
dc.identifier.uri | http://hdl.handle.net/2122/8837 | en |
dc.description.abstract | In the present study the attenuation mechanism of seismic wave energy in and around the source area of the Chamoli earthquake of 29th March 1999 is estimated using the aftershock data. Most of the analyzed events are from the vicinity of the Main Central Thrust (MCT), which is a well-defined tectonic discontinuity in the Himalayas. Separation of intrinsic (Q 1 i ) and scattering (Q 1 s ) attenuation coefficient is done over the frequencies 1, 2, 4, 8 and 16 Hz using Multiple Lapse Time Window Analysis (MLTWA) method. It is observed that S-waves and their coda are primarily attenuated due to scattering attenuation and seismic albedo is very high at all the frequencies. A comparison of attenuation characteristics obtained using these aftershock data with those obtained using data of general seismicity of this region reveal that at lower frequencies both intrinsic and scattering attenuation for Chamoli was much higher compared to those for Garwhal-Kumaun region using general seismicity data. At higher frequencies intrinsic attenuation for Chamoli is lower than and scattering attenuation is comparable to those obtained using general seismicity data of Garwhal-Kumaun region. | en |
dc.description.sponsorship | A partial support has been given by Italy INGV-DPC (Istituto Nazionale di Geofisica e Vulcanologia and Dipartimento di Protezione Civile) Projects UNREST and SPEED, and by Italy’s Ministry of Education PRIN project (Seismic Hazard in Central Apennines, UR Del Pezzo). | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier Science Limited | en |
dc.relation.ispartof | Journal of Asian earth sciences | en |
dc.relation.ispartofseries | /79 (2014) | en |
dc.subject | MLTWA | en |
dc.subject | Intrinsic attenuation | en |
dc.subject | Scattering attenuation | en |
dc.subject | Chamoli Himalayas | en |
dc.subject | Himalayas | en |
dc.title | The attenuation mechanism of S-waves in the source zone of the 1999 Chamoli earthquake | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 446-454 | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis | en |
dc.subject.INGV | 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics | en |
dc.identifier.doi | 10.1016/j.jseaes.2013.10.014 | en |
dc.description.obiettivoSpecifico | 1T. Geodinamica e interno della Terra | en |
dc.description.obiettivoSpecifico | 4T. Fisica dei terremoti e scenari cosismici | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | restricted | en |
dc.relation.issn | 1367-9120 | en |
dc.relation.eissn | 1878-5786 | en |
dc.contributor.author | Mukhopadhyay, S. | en |
dc.contributor.author | Kumar, A. | en |
dc.contributor.author | Garg, A. | en |
dc.contributor.author | Del Pezzo, E. | en |
dc.contributor.author | Kayal, J. R. | en |
dc.contributor.department | Department of Earth Sciences, IIT Roorkee, Roorkee 247667, India | en |
dc.contributor.department | Department of Earth Sciences, IIT Roorkee, Roorkee 247667, India | en |
dc.contributor.department | Department of Earth Sciences, IIT Roorkee, Roorkee 247667, India | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.department | School of Oceanographic Studies, Jadavpur University, Kolkata 700016, India | 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 | Department of Earth Sciences, IIT Roorkee, Roorkee 247667, India | - |
crisitem.author.dept | NOAA | - |
crisitem.author.dept | Department of Earth Sciences, IIT Roorkee, Roorkee 247667, India | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.dept | School of Oceanographic Studies, Jadavpur University, Kolkata 700016, India | - |
crisitem.author.orcid | 0000-0002-6981-5967 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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