Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/449| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Giampiccolo, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
| dc.contributor.authorall | Gresta, S.; Dipartimento di Scienze Geologiche, Università di Catania, Catania, Italy | en |
| dc.contributor.authorall | Rasconà, F.; Dipartimento di Scienze Geologiche, Università di Catania, Catania, Italy | en |
| dc.date.accessioned | 2005-10-04T17:58:53Z | en |
| dc.date.available | 2005-10-04T17:58:53Z | en |
| dc.date.issued | 2004-07-30 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/449 | en |
| dc.description.abstract | We analyzed about 150 local earthquakes recorded in Southeastern Sicily from 1994 to 2001 and estimated coda- Q, intrinsic and scattering attenuation. We used the single scattering assumption to fit the amplitude envelopes of the coda at different frequency bands, obtaining a Qc varying with frequency as generally observed in tectonically active areas. Lapse time dependence has been also studied for the area, with the coda waves analyzed at window lengths ranging from 15 to 50 s, provided the coda duration permitted it. We found that Q0 ( Qc at 1 Hz) increases with lapse time and we interpreted this as due to increasing Qc with depth. Conversely, the frequency dependence coefficient n is mostly stationary at all the lapse time window lengths. Finally, using the independent estimates of Qc and the total Q ( QT) previously obtained for the area by other authors from direct S-waves of the same data set, we separated the intrinsic ( ) from the scattering ( ) attenuation factor. The results suggest that in Southeastern Sicily intrinsic dissipation plays a predominant role with respect to scattering phenomena. | en |
| dc.format.extent | 520 bytes | en |
| dc.format.extent | 236166 bytes | en |
| dc.format.mimetype | text/html | en |
| dc.format.mimetype | application/pdf | en |
| dc.language.iso | English | en |
| dc.publisher.name | Elsevier | en |
| dc.relation.ispartof | Physics of the Earth and Planetary Interiors | en |
| dc.relation.ispartofseries | 1-4/145(2004) | en |
| dc.subject | Coda waves | en |
| dc.subject | Intrinsic attenuation | en |
| dc.subject | Scattering | en |
| dc.subject | Frequency dependence and Southeastern Sicily | en |
| dc.title | Intrinsic and scattering attenuation from observed seismic codas in Southeastern Sicily (Italy) | en |
| dc.type | article | en |
| dc.description.status | Published | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.description.pagenumber | 55-66 | en |
| dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics | en |
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Geophys., Volume: 153, (1998), pp. 703-712 Bibliographic Page Full text Wennerberg, L., "Multiple scattering interpretations of coda Q measurements", Bull. Seism. Soc. Am., Volume: 83, (1993), pp. 279-290 Woodgold, C.R.D., "Coda Q in the Charlevoix, Quebec, Region: lapse-time dependence and spatial and temporal comparison", Bull. Seism. Soc. Am., Volume: 84, (1994), pp. 1123-1131 Zeng, Y., "Compact solutions for multiple scattered wave energy in time domain", Bull. Seism. Soc. Am., Volume: 81, (1991), pp. 1022-1029 | en |
| dc.description.fulltext | partially_open | en |
| dc.contributor.author | Giampiccolo, E. | en |
| dc.contributor.author | Gresta, S. | en |
| dc.contributor.author | Rasconà, F. | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
| dc.contributor.department | Dipartimento di Scienze Geologiche, Università di Catania, Catania, Italy | en |
| dc.contributor.department | Dipartimento di Scienze Geologiche, Università di Catania, Catania, Italy | 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 | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
| crisitem.author.dept | Università di Catania | - |
| crisitem.author.dept | Dipartimento di Scienze Geologiche, Università di Catania, Catania, Italy | - |
| crisitem.author.orcid | 0000-0001-5203-7436 | - |
| crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| 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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