Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/6236
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Bruno, P. P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.authorall | Castiello, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.authorall | Improta, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2010-11-15T08:12:52Z | en |
dc.date.available | 2010-11-15T08:12:52Z | en |
dc.date.issued | 2010-10 | en |
dc.identifier.uri | http://hdl.handle.net/2122/6236 | en |
dc.description | An edited version of this paper was published by AGU. Copyright (2010) American Geophysical Union. | en |
dc.description.abstract | Pre-Stack Depth Migration (PSDM) is an effective tool to improve seismic reflection imaging of laterally heterogeneous media. However, migration performance strongly depends on the accuracy of the velocity model, therefore, PSDM is often ineffective for ultrashallow imaging (100 m and less) of complex structures. In this study, we applied non-linear multiscale refraction tomography and PSDM on dense wide-aperture data to image the causative fault of the 1980, M6.9, Irpinia normal faulting earthquake in a very complex geologic environment. Dense wide-aperture profiling allowed us to build accurate velocity models by multi-scale non linear refraction tomography and to record wide-angle reflections from steep reflectors. PSDM provided superior imaging with respect to conventional post-stack depth migration, and a better definition of fault geometry and apparent cumulative displacement. The estimated throw of Irpinia fault is only 29-38 m. This value, combined with the vertical slip rate estimated by nearby trenches, suggests a young age (97-127 kyr) of fault inception. Our outcomes are in agreement with paleoseismic data and indicate that this imaging strategy can be very effective for near-surface fault detection and characterization. | en |
dc.description.sponsorship | Grant L.R. n. 5/2002 - Annuity 2003 - to Pier Paolo Bruno | en |
dc.language.iso | English | en |
dc.publisher.name | AGU | en |
dc.relation.ispartof | Geophysical Research Letters | en |
dc.relation.ispartofseries | /37 (2010) | en |
dc.subject | pre-stack migration, seismic reflection, seismic tomography, irpinia fault | en |
dc.title | Ultrashallow seismic imaging of the causative fault of the 1980, M6.9, southern Italy earthquake by pre‐stack depth migration of dense wide‐aperture data | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | L19302 | en |
dc.identifier.URL | http://www.agu.org/pubs/crossref/2010/2010GL044721.shtml | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous | en |
dc.identifier.doi | 10.1029/2010GL044721 | en |
dc.description.obiettivoSpecifico | 3.2. Tettonica attiva | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Bruno, P. P. | en |
dc.contributor.author | Castiello, A. | en |
dc.contributor.author | Improta, L. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | reserved | - |
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 OV, Napoli, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.orcid | 0000-0003-2622-3037 | - |
crisitem.author.orcid | 0000-0003-0952-3978 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
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bruno et al 2010grl.pdf | 5.63 MB | Adobe PDF |
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